Exhaust buffer cavity baffle for reducing noise of compressor in exhaust coil

Abstract

The utility model relates to the technical field of compressor exhaust, and discloses an exhaust buffer cavity baffle for reducing compressor noise in an exhaust coil, which comprises a baffle, an exhaust buffer cavity is arranged in the exhaust coil, the baffle is mounted in the exhaust buffer cavity, and the exhaust buffer cavity is divided into an outer buffer cavity and an inner buffer cavity by the baffle. The outer buffer cavity communicates with an air inlet branch pipe, and the inner buffer cavity communicates with an air outlet branch pipe; the outer ring of the baffle is round and tightly attached to the inner wall of the exhaust coil pipe, the round area in the middle of the baffle partially protrudes towards one side of the inner buffering cavity, an arc-shaped groove is formed in the baffle wall, facing one side of the outer buffering cavity, of the round area, and a distance exists between the arc-shaped groove and the center of the baffle. The air inlet branch pipe extends into the outer buffering cavity and is close to one end of the arc-shaped groove, and the other end of the arc-shaped groove is provided with an exhaust hole communicated with the inner buffering cavity and the outer buffering cavity. According to the utility model, by optimizing the baffle plate structure, the flowing efficiency of a refrigerant is improved, the operation of the compressor is more stable, and the noise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of compressor exhaust technology, and more specifically, to an exhaust buffer chamber baffle for reducing compressor noise inside an exhaust coil. Background Technology

[0002] The reciprocating motion of the compressor piston compresses the refrigerant gas, creating high-temperature, high-pressure gas that enters the refrigerator's refrigeration cycle system via the exhaust coil. Due to the intermittent exhaust, the high-velocity refrigerant gas exhibits significant airflow pulsation, generating airflow noise and system piping vibration. During operation, the compressor continuously performs intake and exhaust actions, with the exhaust pressure far exceeding the intake pressure, resulting in very loud exhaust noise.

[0003] Given that the exhaust buffer chamber is one of the key components in a compressor that generates pulsating noise and pipeline vibration, the optimization and improvement of the exhaust coil has become a research focus for compressor manufacturers. Utility Model Content

[0004] In view of this, the present invention proposes an exhaust buffer chamber baffle for reducing compressor noise inside the exhaust coil, the specific technical solution of which is as follows:

[0005] An exhaust buffer chamber baffle for reducing compressor noise inside an exhaust coil includes a baffle. An exhaust buffer chamber is provided inside the exhaust coil, and the baffle is installed inside the exhaust buffer chamber. The baffle divides the exhaust buffer chamber into an outer buffer chamber and an inner buffer chamber. The outer buffer chamber corresponds to the front tube body of the exhaust coil, and the inner buffer chamber corresponds to the rear tube body of the exhaust coil. The front end of the front tube body is sealed and connected to an intake branch pipe, and the rear end of the rear tube body is sealed and connected to an exhaust branch pipe. The outer ring of the baffle is circular and fits tightly against the inner wall of the exhaust coil. A portion of the circular area in the middle of the baffle protrudes towards the inner buffer chamber, and an arc-shaped groove is formed on the baffle wall facing the outer buffer chamber. There is a gap between the arc-shaped groove and the center of the baffle. The intake branch pipe extends into the outer buffer chamber and is close to one end of the arc-shaped groove. An exhaust hole connecting the inner and outer buffer chambers is formed at the other end of the arc-shaped groove.

[0006] Preferably, the baffle is made of a corrosion-resistant and high-temperature-resistant metal or alloy.

[0007] Preferably, the baffle is fixed inside the exhaust coil by welding, snap-fitting, riveting, or bonding.

[0008] Preferably, the curvature of the arc-shaped groove is consistent with the curvature of the edge of the circular region.

[0009] Preferably, there is an angle between the central axis of the intake manifold and the central axis of the exhaust buffer chamber.

[0010] Compared with existing technologies, the exhaust buffer chamber baffle for reducing compressor noise inside the exhaust coil of this utility model has the following advantages:

[0011] 1. This utility model adds a baffle in the exhaust buffer chamber of the exhaust coil. The baffle divides the exhaust buffer chamber into an outer buffer chamber and an inner buffer chamber. For the gas noise discharged by the expansion of high temperature and high pressure gas, the baffle forms a gas buffer structure and uses the multi-stage pressure reduction principle to achieve the gas guiding and buffering effect, which better reduces the pipeline noise and vibration generated by the airflow pulsation of the compressor.

[0012] 2. In a further design, the circular area in the middle of the baffle protrudes towards the inner buffer cavity, and an arc-shaped groove is formed on the baffle wall facing the outer buffer cavity. The intake branch pipe extends into the outer buffer cavity and is close to one end of the arc-shaped groove. An exhaust port connecting the inner and outer buffer cavities is formed at the other end of the arc-shaped groove. In this way, the compressor airflow entering the outer buffer cavity can be gathered in the arc-shaped groove. At the same time, the arc-shaped groove guides the flow path of the airflow and orderly leads the airflow to the inner buffer cavity, and then transmits it to the outside of the exhaust coil through the exhaust branch pipe, thereby reducing the vibration frequency of gas transmission.

[0013] 3. The shape and distribution of the baffle in this utility model have been optimized. This structure of the baffle plays a throttling role on the airflow entering the exhaust buffer chamber, realizing the gas volume discharge from large to small, with a rate change process, thereby achieving the noise reduction effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the exhaust coil for installing this utility model.

[0016] Figure 2 Schematic diagram of the internal structure of the exhaust coil for installing this utility model Figure 1 (Excluding the front tube body)

[0017] Figure 3 Schematic diagram of the internal structure of the exhaust coil for installing this utility model Figure 2 (Excluding the rear tube body)

[0018] Figure 4 Perspective view of the exhaust coil for installing this utility model Figure 1 .

[0019] Figure 5 Perspective view of the exhaust coil for installing this utility model Figure 2 .

[0020] Figure 6 This is a front view of the baffle of this utility model.

[0021] Figure 7 This is a rear view of the baffle of this utility model.

[0022] Figure 8 This is a side view of the baffle of this utility model.

[0023] In the diagram: 10-baffle, 101-arc groove, 102-exhaust port, 103-circular area, 20-exhaust coil, 201-outer buffer chamber, 202-inner buffer chamber, 203-front pipe body, 204-rear pipe body, 30-intake branch pipe, 40-outtake branch pipe. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Example 1:

[0028] See Figures 1-8This embodiment provides an exhaust buffer chamber baffle for reducing compressor noise inside an exhaust coil, including a baffle 10. The exhaust coil 20 has an exhaust buffer chamber inside, and the baffle 10 is installed inside the exhaust buffer chamber. The baffle 10 divides the exhaust buffer chamber into an outer buffer chamber 201 and an inner buffer chamber 202. The outer buffer chamber 201 corresponds to the front pipe body 203 of the exhaust coil 20, and the inner buffer chamber 202 corresponds to the rear pipe body 204 of the exhaust coil 20. The front end of the front pipe body 203 is sealed and connected to the intake branch pipe 30, and the rear end of the rear pipe body 204 is sealed and connected to the outlet branch pipe 40.

[0029] Meanwhile, the outer ring of the baffle 10 is circular and fits tightly against the inner wall of the exhaust coil. The circular area 103 in the middle of the baffle 10 protrudes into the inner buffer cavity 202. An arc-shaped groove 101 is provided on the baffle wall facing the outer buffer cavity 201. There is a gap between the arc-shaped groove 101 and the center of the baffle. The end of the intake branch pipe 30 extends into the outer buffer cavity 201 and is close to one end of the arc-shaped groove 101. An exhaust hole 102 connecting the inner and outer buffer cavities 201 is provided at the other end of the arc-shaped groove 101.

[0030] This invention firstly divides the exhaust buffer chamber into an outer buffer chamber 201 and an inner buffer chamber 202 by adding a baffle 10 to the exhaust buffer chamber of the exhaust coil 20. The baffle 10 forms a gas buffer structure for the gas noise emitted by the expansion of high temperature and high pressure gas, and plays a role in guiding and buffering gas by using the multi-stage pressure reduction principle, which better reduces the pipe noise and vibration generated by the airflow pulsation of the compressor.

[0031] Meanwhile, the baffle 10 in this utility model has a circular structure with the middle part protruding outward. The baffle 10 is tightly attached to the inner wall of the exhaust coil. By optimizing the shape and distribution of the baffle 10, the utility model further opens an arc-shaped groove 101 and an exhaust hole 102 inside the baffle 10, which can guide the flow path of the refrigerant airflow and transmit it out of the pipe in an orderly manner, thereby reducing the vibration frequency of gas transmission.

[0032] In other words, the baffle 10 in this invention throttles the airflow entering the exhaust buffer chamber, reducing the volume of gas discharged from large to small, thus achieving a rate change process and reducing noise.

[0033] In a further specific embodiment, the baffle 10 is made of a corrosion-resistant and high-temperature-resistant metal or alloy, such as stainless steel or titanium alloy.

[0034] In a further specific embodiment, the baffle 10 is fixed inside the exhaust coil by welding, snap-fitting, riveting or bonding to ensure its firmness and durability.

[0035] Specific connection method: According to the determined connection method, install the fabricated baffle 10 on the inner wall of the exhaust coil. When using welding, ensure welding quality to avoid incomplete or incomplete welds. When using a snap-fit ​​method, ensure a tight fit at the snap-fit ​​points.

[0036] In this embodiment, the bending direction of the arc-shaped groove 101 is consistent with the bending direction of the edge of the circular area, and there is an angle between the central axis of the intake branch pipe 30 and the central axis of the exhaust buffer chamber.

[0037] This invention improves the refrigerant flow efficiency by optimizing the baffle structure, making the compressor run more stably and reducing noise.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0039] The above description of the disclosed embodiments enables those 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 general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not 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

1. An exhaust muffling chamber baffle for reducing compressor noise in an exhaust coil, characterized by, The exhaust baffle is installed in the exhaust buffer cavity, and the exhaust buffer cavity is divided into an outer buffer cavity and an inner buffer cavity by the exhaust baffle, the outer buffer cavity corresponds to the front pipe body of the exhaust coil, the inner buffer cavity corresponds to the rear pipe body of the exhaust coil, the front end of the front pipe body is sealingly connected with the air inlet branch pipe, and the rear end of the rear pipe body is sealingly connected with the air outlet branch pipe; the outer circle of the exhaust baffle is circular and closely combined with the inner wall of the exhaust coil, the circular area in the middle of the exhaust baffle protrudes to one side of the inner buffer cavity, an arc-shaped groove is formed in the wall of the exhaust baffle on the side of the circular area facing the outer buffer cavity, the arc-shaped groove is spaced apart from the center of the exhaust baffle, the air inlet branch pipe extends to the outer buffer cavity and is close to one end of the arc-shaped groove, and an exhaust hole for connecting the inner buffer cavity and the outer buffer cavity is formed at the other end of the arc-shaped groove.

2. A discharge muffling chamber baffle for reducing compressor noise in a discharge coil according to claim 1, wherein The material of the exhaust baffle is a metal or an alloy that is corrosion-resistant and high-temperature-resistant.

3. A discharge muffling chamber baffle for reducing compressor noise in a discharge coil according to claim 2, wherein The exhaust baffle is fixed in the exhaust coil by welding, clamping, riveting or bonding.

4. A discharge muffling chamber baffle for reducing compressor noise in a discharge coil according to claim 1, wherein The bending direction of the arc-shaped groove is consistent with the bending direction of the edge of the circular area.

5. A discharge muffling chamber baffle for reducing compressor noise in a discharge coil according to claim 1, wherein, The air inlet branch pipe and the exhaust buffer cavity have an included angle between the central axes thereof. The air inlet branch pipe and the exhaust buffer cavity have an included angle between the central axes thereof.

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