CN218991814U - Muffler for refrigeration compressor - Google Patents

Abstract

The utility model relates to a muffler for a refrigeration compressor, which comprises a shell, an upper cover detachably arranged at the top of the shell and an inner cavity partition plate arranged in the shell, wherein the shell and the upper cover jointly define an inner cavity, the inner cavity partition plate divides the inner cavity into a first silencing chamber and a second silencing chamber which are adjacent left and right, the upper cover is provided with an air outlet which is in fluid communication with the second silencing chamber, the side wall of the shell is provided with an air inlet communicated with the first silencing chamber, the muffler also comprises a U-shaped pipe arranged in the inner cavity, the U-shaped pipe is provided with a first inlet and a first outlet which are respectively positioned in the first silencing chamber and the second silencing chamber, and the first inlet is higher than the air inlet. According to the silencer provided by the technical scheme of the utility model, after the heat transfer medium enters the first silencing chamber through the air inlet pipe, the heavy liquid part descends and is stored in the first silencing chamber, and the light gas part flows downstream through the first inlet at the high position, so that the effect of gas-liquid separation is achieved.

Description

Muffler for refrigeration compressor

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a silencer for a refrigeration compressor.

Background

The refrigeration compressor is a core component of refrigeration equipment such as refrigerators, freezers, and air conditioners, which is capable of compressing a low pressure heat transfer medium into a high pressure heat transfer medium and delivering the same downstream. The periodic suction and discharge of the refrigeration compressor is the primary source of noise for the refrigeration equipment. The muffler for a refrigeration compressor is generally provided at a fluid inlet of the refrigeration compressor, and a muffler chamber having a large space is provided therein. The sound wave transmitted from the fluid inlet of the refrigeration compressor can be reflected and resonated by the sound attenuation chamber, so that the effect of reducing noise is achieved. The present utility model has been made based on the following facts and findings: when the conventional refrigeration apparatus is operated, if the heat transfer medium entering the refrigeration compressor is mixed with liquid (including lubricating oil and unvaporized heat transfer medium), the part of the liquid reduces the compression efficiency of the refrigeration compressor and shortens the service life of the compressor by striking the internal components of the refrigeration compressor.

Disclosure of Invention

The utility model aims to provide a silencer for a refrigeration compressor, which has a gas-liquid separation function.

The utility model provides the following technical scheme: the utility model provides a muffler for refrigeration compressor, includes the casing, detachably install in upper cover at casing top and set up in the inside inner chamber baffle of casing, the casing with the upper cover define the inner chamber jointly, the inner chamber baffle with the inner chamber separate into about adjacent first amortization room and second amortization room, the upper cover seted up with the gas outlet of second amortization room fluid intercommunication, be formed with on the lateral wall of casing and switch on the air inlet of first amortization room, the muffler still including set up in the U type pipe of inner chamber, U type pipe have be located respectively first amortization room with the first entry and the first export of second amortization room, first entry be higher than the air inlet.

In the foregoing technical solution, preferably, the cavity has a cavity depth, the first inlet has an inlet height formed with respect to a bottom of the cavity, and the inlet height is not less than one half of the cavity depth.

In the above technical solution, preferably, both the air inlet and the first inlet face directly above.

In the above technical solution, preferably, the device further includes a tail pipe, the tail pipe has a second inlet and a second outlet which are far away from each other, the second inlet is located in the second silencing chamber and faces the first outlet, and the second outlet is connected with the upper cover and is connected with the air outlet.

In the above preferred embodiment, it is further preferred that the inner chamber partition, the U-shaped tube and the tail tube are integrally formed and constitute a unit. Still further preferably, a plugging groove which extends vertically and is matched with the inner cavity partition board is arranged in the shell, and the inner cavity partition board and the plugging groove form detachable connection; when the upper cover is removed, the assembly can be entirely withdrawn from the cavity.

In the above preferred embodiment, it is further preferred that the second inlet and the second outlet are inclined with respect to a vertical line in the same direction.

According to the silencer provided by the technical scheme of the utility model, after the heat transfer medium enters the first silencing chamber through the air inlet pipe, the heavy liquid part descends and is stored in the first silencing chamber, and the light gas part flows downstream through the first inlet at the high position, so that the effect of gas-liquid separation is achieved.

Drawings

FIG. 1 is a schematic perspective view of a muffler according to the present utility model;

FIG. 2 is a disassembled view of the muffler of FIG. 1;

fig. 3 is a front cross-sectional view of the muffler of fig. 1.

The drawing is marked:

100. a muffler;

1. a housing; 11. an air inlet; 12. a first muffling chamber; 13. a second muffling chamber;

2. an upper cover; 21. a cover plate; 22. a connection part; 23. an air outlet;

3. an inner cavity baffle; 4. a U-shaped tube; 41. a first inlet; 42. a first outlet;

5. a tail pipe.

Description of the embodiments

In order to describe the technical content, constructional features, objects and effects of the utility model in detail, the technical solutions of the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or modes of practice of the utility model. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Furthermore, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the specific shapes, configurations, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

Furthermore, spatially relative terms such as "under … …," "under … …," "under … …," "lower," "above … …," "upper," "above … …," "higher," "side" (e.g., as in "sidewall") and the like are used herein to describe one element's relationship to another element(s) as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below … …" may include both upper and lower orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1-3 illustrate a muffler 100 for a refrigeration compressor provided by the present utility model, the muffler 100 being positionable at a fluid inlet of the refrigeration compressor and for accessing a low pressure heat transfer medium for the refrigeration compressor. Referring to fig. 2, the muffler 100 includes a housing 1, an upper cover 2 detachably mounted on an upper side of the housing 1, and components detachably disposed inside the housing 1.

The housing 1 and the upper cover 2 together define an interior cavity (not shown) having a cavity depth H1. The top of the housing 1 is open and forms an air inlet 11 in the side wall, which air inlet 11 adjoins the inner cavity and is in fluid communication with the inner cavity. Wherein the air inlet 11 is configured to face directly above.

The upper cover 2 includes a cover plate 21 at a lower portion, a connection portion 22 integrally formed with the cover plate 21, and an air outlet 23 provided on the connection portion 22. The cover plate 21 is matched with the top opening of the shell 1 to open or close the inner cavity; the connection portion 22 may be detachably connected with the corresponding refrigeration compressor; the outlet 23 provides for fluid to flow out of the muffler 100. When the muffler 100 is mounted on a refrigeration compressor, the fluid outlet 23 communicates with the fluid inlet of the refrigeration compressor.

The assembly comprises an inner cavity baffle 3, a U-shaped pipe 4 and a tail pipe 5 which are integrally arranged. The inner wall surface of the housing 1 is provided with a vertically extending plug-in groove (not shown) adapted to the inner cavity partition 3. The inner cavity partition plate 3 is inserted into the inserting groove, namely, the inner cavity partition plate 3 and the shell 1 form detachable connection in a pulling-inserting mode. It will be appreciated that when the cover 2 is removed, the assembly may be inserted into or withdrawn from the cavity as a whole. When the inner cavity partition plate 3 is completely inserted into the insertion groove, the inner cavity is partitioned by the inner cavity partition plate 4 into a first silencing chamber 12 and a second silencing chamber 13 which are adjacent left and right. Wherein the inlet 11 is adjacent to the first sound-deadening chamber 12.

The U-tube 4 has a first inlet 41 and a first outlet 42 which are distant from each other in the fluid path. The first inlet is located in the first muffling chamber 12 and directed directly above, and the first inlet 41 is configured to be higher than the air inlet 11 and forms an inlet height H2 with the inner cavity bottom edge, H2. Gtoreq.1/2H 1. The first outlet 42 is provided in the second muffling chamber 13.

The tail pipe 5 has a second inlet (not shown) and a second outlet (not shown) which are distant from each other in the fluid path. The second inlet is located in the second muffling chamber 13 and faces the first outlet 42, and the first outlet 42 and the second inlet are configured to be inclined with respect to a vertical line in the same direction. The bottom of the upper cover 2 is provided with a mounting groove (not shown in the figures) into which the mouth of the second outlet is inserted and which allows the assembly to be detachably connected to the upper cover. When the assembly is connected to the upper cover 2, the second outlet opens into the air outlet 23 of the upper cover 2.

The following describes the operation principle of the muffler 100: after the heat transfer medium enters the muffler 100 through the air inlet 11, the carried liquid portion descends and is stored in the first muffling chamber 12, and the lighter gas portion ascends and enters the U-shaped pipe 4 from the first inlet 41, thereby achieving the effect of gas-liquid separation. Thereafter, the gas portion reaches the fluid inlet of the refrigerant compressor via the second sound deadening chamber 13, the tail pipe 5, and the gas outlet 23. Noise sound waves generated by the refrigeration compressor are transmitted along the direction of the flowing direction of the heat transfer medium, and are reflected and resonated at the second silencing chamber 13 and the first silencing chamber 12 continuously, so that the effect of reducing noise is achieved. In addition, since the inlet height H1 of the first inlet 41 is not less than half of the inner cavity depth H2, the first silencing chamber 12 has a certain liquid storage capacity, and can adapt to the working condition of high liquid carrying amount of the heat transfer medium.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, the scope of which is defined in the appended claims, specification and their equivalents.

Claims (7)

1. The utility model provides a muffler for refrigeration compressor, includes the casing, detachably install in upper cover at casing top and set up in the inside inner chamber baffle of casing, the casing with the upper cover define the inner chamber jointly, the inner chamber baffle with the inner chamber separate into about adjacent first amortization room and second amortization room, the upper cover seted up with the gas outlet of second amortization room fluid intercommunication, be formed with on the lateral wall of casing and switch on the air inlet of first amortization room, its characterized in that, the muffler still include set up in the U type pipe of inner chamber, U type pipe have be located respectively first amortization room with the first entry and the first export of second amortization room, first entry be higher than the air inlet.

2. The muffler of claim 1, wherein the internal cavity has an internal cavity depth, the first inlet has an inlet height formed relative to the bottom of the internal cavity, and the inlet height is not less than one-half of the internal cavity depth.

3. The muffler of claim 1, wherein the inlet and the first inlet are both oriented directly above.

4. The muffler of claim 1, further comprising a tail pipe having a second inlet and a second outlet spaced apart from each other, the second inlet being located within the second muffler chamber and facing the first outlet, the second outlet being connected to the upper cover and communicating with the air outlet.

5. The muffler of claim 4, wherein the inner chamber baffle, the U-shaped tube, and the tail tube are integrally formed and form a unit.

6. The silencer of claim 5, wherein a vertically extending socket is provided in the housing and adapted to the inner chamber partition, the inner chamber partition and the socket being detachably connected; when the upper cover is removed, the assembly can be entirely withdrawn from the cavity.

7. The muffler of claim 4, wherein the second inlet is inclined with respect to the vertical in the same direction as the second outlet.

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