Liquid distributor and compressor having the same

Abstract

The application provides a distributor and a compressor with the same, wherein the distributor comprises a casing, a filter screen assembly and a flow distribution component arranged in the casing respectively, the flow distribution component comprises a connecting pipe section, a flow distribution pipe section and a sound attenuation pipe section, one end of an inlet pipe is connected with the connecting pipe section by penetrating the casing, the flow distribution pipe section is deviated from the axial direction of the inlet pipe, the flow distribution pipe section has an outlet, the sound attenuation pipe section is closed at one end far from the connecting pipe section, and a resonance cavity is formed in the sound attenuation pipe section. According to the application, the flow distribution component is arranged to buffer the refrigerant flowing out of the inlet pipe and change the flow direction of the refrigerant, so that the refrigerant in the inlet pipe does not directly impact the filter screen to cause the filter screen to break. The flow distribution component further has the sound attenuation pipe section, when the disturbance frequency of the airflow entering the flow distribution pipe section is consistent with the frequency of the resonance cavity formed by the sound attenuation pipe section, resonance occurs, the air column in the resonance cavity rubs against the inner wall of the flow distribution component to consume sound energy, so that the pulsation noise generated by the refrigerant during the flow process is reduced.

Description

Technical Field

[0001] This invention belongs to the field of compressor technology, specifically relating to a liquid separator and a compressor having the same. Background Technology

[0002] The liquid distributor is crucial for ensuring the reliable operation of the compressor. If the liquid distributor does not separate liquid effectively, it can easily lead to liquid being carried into the compressor's intake, resulting in poor liquid compression or lubrication, which in turn damages the compressor's reliability.

[0003] Existing distributors draw refrigerant from the straight pipe (inlet pipe) and spray it directly onto the filter assembly. Because the filter assembly is close to the straight pipe, the oil brought back by the system is also sprayed directly onto the filter assembly. This causes some filter pores to become momentarily blocked during the suction process, reducing the suction flow area and generating significant suction resistance. Furthermore, incomplete gas-liquid separation can lead to liquid hammer. Existing patents for improving the distributor's separation efficiency generally focus on the design of the filter support, the relative position of the filter support and the flow orifice, the design of the lower blocking structure of the filter assembly, the structural design of the steel pipe inlet, and the utilization of the distributor's baffle plate for auxiliary separation. These solutions primarily focus on the filter support and its lower part.

[0004] Meanwhile, the internal pressure of the distributor is unstable, and the filter screen is fixed to the filter screen support by a pressure ring. The filter screen is not fully secured and has an arc-shaped bulge. Under the influence of this airflow fluctuation, the filter screen is prone to breakage, reducing its service life. Existing methods to avoid filter screen breakage include: 1. Adding a blocking structure to the upper part of the filter screen, or making the filter screen a flat structure; 2. Making the inlet pipe bend within the distributor to buffer and guide the refrigerant, reducing the impact force of the refrigerant and changing the flow direction of the refrigerant. While method two can effectively prevent the arc-shaped bulge filter screen from breaking, it does not consider the problem of significant noise caused by the fluctuation of the system, resulting in refrigerant fluctuations before and during the bend. Summary of the Invention

[0005] Therefore, the present invention provides a liquid distributor that can solve the technical problem that, although the impact of the refrigerant on the filter screen can be reduced and the filter screen, which is bulging in an arc shape, can be prevented from breaking after the inlet pipe of the existing liquid distributor is partially turned inside the liquid distributor, the refrigerant fluctuates before and during the turning part due to system fluctuations, resulting in greater noise.

[0006] To address the aforementioned problems, the present invention provides a liquid distributor, comprising: a housing and an inlet pipe. A filter assembly and a diversion component are respectively disposed within the housing. The diversion component has a connecting pipe section, a diversion pipe section, and a silencer pipe section. Both the diversion pipe section and the silencer pipe section are communicative with the connecting pipe section. One end of the inlet pipe penetrates the housing and connects to the connecting pipe section. The diversion pipe section is offset from the axial direction of the inlet pipe and has an outlet. The end of the silencer pipe section away from the connecting pipe section is closed, and a resonant cavity is formed inside the silencer pipe section. The filter assembly is located on the side of the diversion component opposite to the inlet pipe.

[0007] In some embodiments, the number of silencer pipe sections is at least two, and the length of each silencer pipe section is different.

[0008] In some embodiments, the number of silencer pipe sections is even, two silencer pipe sections are paired with each other, the two pairs of silencer pipe sections are oriented oppositely on the flow divider, and the central axes of the two pairs of silencer pipe sections coincide.

[0009] In some embodiments, the number of diversion pipe sections is even, two diversion pipe sections are paired with each other, the two pairs of diversion pipe sections are oriented oppositely on the diversion component, and the central axes of the two pairs of diversion pipe sections coincide. The number of diversion pipe sections is the same as the number of silencer pipe sections.

[0010] In some embodiments, a first pipe is provided at the outlet, the end of the first pipe away from the diversion pipe section is closed, and the first pipe has a plurality of through holes, the diameter of each through hole being smaller than the inner diameter of the inlet pipe.

[0011] In some embodiments, the number of the diversion pipe segments is at least two, and each of the diversion pipe segments is connected to the first pipe body. The number of the first pipe bodies is denoted as M, the number of the through holes is denoted as N, the flow area of ​​the through holes is denoted as S1, and the flow area of ​​the inlet pipe is denoted as S2, where 1.2≤(M*N*S1) / S2≤1.5.

[0012] In some embodiments, the diversion section extends radially along the housing, and the outlet faces radially toward the housing; and / or, the number of diversion sections is at least two.

[0013] In some embodiments, the diversion section is curved, and the outlet faces the axial direction of the housing; and / or, the number of diversion sections is at least two.

[0014] In some embodiments, the diversion component is detachably connected to the inlet pipe.

[0015] The present invention also provides a compressor including the above-described liquid distributor.

[0016] The present invention provides a liquid dispenser and a compressor having the same, which have the following beneficial effects:

[0017] This application incorporates a flow divider at one end of the inlet pipe within the housing, with the divider section offset from the axial direction of the inlet pipe. This buffers and alters the flow direction of the refrigerant exiting the inlet pipe, preventing direct impact from the refrigerant entering the distributor onto the filter assembly and thus avoiding filter breakage. This extends the filter's lifespan and improves the distributor's reliability. Furthermore, buffering and redirecting the refrigerant exiting the inlet pipe also addresses the issue of oil carried in the refrigerant directly spraying onto the filter assembly, which could clog some filter pores during suction, reducing the suction flow area and creating significant suction resistance. More importantly, the distribution component also has a silencer section. The interior of the silencer section forms a resonant cavity. When the refrigerant from the system enters the distribution section from the inlet pipe, the fluctuations in the system cause the refrigerant to fluctuate as it flows through the distribution section, thus generating noise. When the disturbance frequency of the airflow entering the distribution section matches the frequency of the formed Helmholtz resonant cavity, resonance occurs. During vibration, the air column in the formed Helmholtz resonant cavity will rub against the inner wall of the distribution component and consume sound energy, thereby reducing the pulsating noise generated by the refrigerant during flow, and thus achieving the purpose of silencing and reducing noise in the distributor. Attached Figure Description

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of the liquid dispenser according to Embodiment 1 of the present invention;

[0020] Figure 2 This is a top view of the flow-dividing component of the liquid dispenser according to Embodiment 1 of the present invention;

[0021] Figure 3 This is a first cross-sectional view of the flow-dividing component of the liquid dispenser according to Embodiment 1 of the present invention;

[0022] Figure 4 This is a second cross-sectional view of the flow-dividing component of the liquid dispenser according to Embodiment 1 of the present invention;

[0023] Figure 5 This is a cross-sectional view of the compressor according to Embodiment 1 of the present invention;

[0024] Figure 6 This is a cross-sectional view of the liquid dispenser according to Embodiment 2 of the present invention;

[0025] Figure 7 This is a top view of the flow-dividing component of the liquid dispenser according to Embodiment 2 of the present invention;

[0026] Figure 8 This is a first cross-sectional view of the flow-dividing component of the liquid dispenser according to Embodiment 2 of the present invention;

[0027] Figure 9 This is a second cross-sectional view of the flow-dividing component of the liquid dispenser according to Embodiment 2 of the present invention;

[0028] Figure 10 This is a cross-sectional view of the compressor according to Embodiment 2 of the present invention;

[0029] Figure 11 This is a cross-sectional view of the liquid dispenser according to Embodiment 3 of the present invention;

[0030] Figure 12 This is a top view of the flow-dividing component of the liquid dispenser according to Embodiment 3 of the present invention;

[0031] Figure 13 This is a cross-sectional view of the flow-dividing component of the liquid dispenser according to Embodiment 3 of the present invention;

[0032] Figure 14 This is a cross-sectional view of the compressor according to Embodiment 3 of the present invention.

[0033] The reference numerals in the attached figures are as follows:

[0034] 1. Shell; 2. Inlet pipe; 3. Filter assembly; 4. Diverter component; 41. Connecting pipe section; 42. Diverter pipe section; 43. Silencing pipe section; 44. First pipe body; 5. Through hole; 6. Exhaust pipe; 7. Diverter baffle; 8. Diverter pressure plate; 9. Rubber gasket; 10. Large rubber stopper; 11. Terminal cover; 12. Small rubber stopper; 13. Upper cover assembly; 14. Compression assembly; 15. Lower cover; 16. Refrigeration oil. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0038] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0040] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0041] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0042] See also Figures 1 to 14 As shown, according to an embodiment of the present invention, a liquid separator is provided, comprising: a housing 1 and an inlet pipe 2. A filter assembly 3 and a diversion component 4 are respectively disposed inside the housing 1. The diversion component 4 has a connecting pipe section 41, a diversion pipe section 42, and a silencer pipe section 43. Both the diversion pipe section 42 and the silencer pipe section 43 can communicate with the connecting pipe section 41. One end of the inlet pipe 2 passes through the housing 1 and is connected to the connecting pipe section 41. The diversion pipe section 42 is offset from the axial direction of the inlet pipe 2 and has an outlet. The end of the silencer pipe section 43 away from the connecting pipe section 41 is closed. A resonant cavity is formed inside the silencer pipe section 43. The filter assembly 3 is located on the side of the diversion component 4 away from the inlet pipe 2.

[0043] In this technical solution, a diversion component 4 is installed at one end of the inlet pipe 2 inside the housing 1, and the diversion section 42 of the diversion component 4 is offset from the axial direction of the inlet pipe 2. This buffers the refrigerant flowing out of the inlet pipe 2 and changes the direction of the refrigerant flow, preventing the refrigerant entering the distributor from the inlet pipe 2 from directly impacting the filter screen of the filter assembly 3, which could cause the filter screen to break. This improves the service life of the filter screen and thus enhances the reliability of the distributor. Simultaneously, buffering and changing the direction of the refrigerant flowing out of the inlet pipe 2 also solves the problem of oil carried in the refrigerant being directly sprayed onto the filter assembly, causing some filter screen holes to be blocked during suction, reducing the suction flow area and generating greater suction resistance. More importantly, the flow divider 4 also has a silencer section 43, the interior of which forms a resonant cavity. When the refrigerant from the system enters the flow divider section 42 from the inlet pipe 2, the system fluctuations cause the refrigerant to fluctuate as it flows through the flow divider section 42, thus generating noise. When the disturbance frequency of the airflow entering the flow divider section 42 matches the frequency of the formed Helmholtz resonant cavity, resonance occurs. During vibration, the air column in the formed Helmholtz resonant cavity rubs against the inner wall of the flow divider 4, consuming sound energy, thereby reducing the pulsating noise generated by the refrigerant during flow, and thus achieving the purpose of noise reduction for the distributor. The distributor housing 1 includes a top cover, a bottom cover, and a central cylinder.

[0044] As one specific implementation, the number of silencer pipe sections 43 is at least two, and the length of each silencer pipe section 43 is different.

[0045] In this embodiment, silencing pipe sections 43 of different lengths form Helmholtz resonant cavities of different depths. Since noise reduction is related to the depth of the Helmholtz resonant cavity, resonant cavities of different depths can silence noise in different frequency bands, thereby achieving better noise reduction effects. The silencing pipe sections 43 can have the same cross-sectional area but different lengths; or they can have different cross-sectional areas and different lengths. Furthermore, the silencing pipe sections 43 can be integrally formed on the flow divider 4, or the main body of the flow divider 4 can have an opening, with the silencing pipe sections 43 connected to the opening in a separate manner, such as... Figure 2 and Figure 7 As shown.

[0046] See also Figure 2 and Figure 7 As shown, the number of silencer pipe sections 43 is even, with two silencer pipe sections 43 forming a pair. The two pairs of silencer pipe sections 43 face opposite directions on the flow divider component 4, and their central axes coincide. That is, there are two silencer pipe sections 43 with different orientations in one direction, and the symmetrical distribution of the two silencer pipe sections 43 makes the noise reduction effect better.

[0047] Specifically, the number of branch pipe sections 42 is even, with two branch pipe sections 42 forming a pair. The two paired branch pipe sections 42 face opposite directions on the branching component 4, and their central axes coincide. The number of branch pipe sections 42 is the same as the number of silencer pipe sections 43. This means that having two branching components 4 with different orientations in one direction, and their symmetrical distribution, ensures a more uniform distribution of refrigerant above the filter screen, improving the refrigerant separation effect through the filter assembly 3. This allows for sufficient refrigerant separation, preventing liquid carryover in the compressor intake. Furthermore, the fact that the number of branch pipe sections 42 is the same as the number of silencer pipe sections 43 ensures sufficient resonance cavity to guarantee the silencing effect.

[0048] Regarding the specific structure of the diversion component 4 in the distributor for the refrigerant flowing through the inlet pipe 2, the following three cases will be explained in detail.

[0049] See also Figure 2 and Figure 4 As shown in the first embodiment, a first pipe body 44 is provided at the outlet of the diversion pipe section 42. The end of the first pipe body 44 away from the diversion pipe section 42 is closed. Multiple through holes 5 are constructed on the first pipe body 44, and the diameter of each through hole 5 is smaller than the inner diameter of the inlet pipe 2.

[0050] In this embodiment, after the refrigerant is discharged from each through hole 5, it can be diverted again, further reducing the impact force of the refrigerant on the filter screen. In addition, the diversion of the refrigerant through holes 5 can also further change the refrigerant distribution state on the upper part of the filter screen, making the refrigerant distribution on the upper part of the filter screen more uniform.

[0051] Specifically, there are at least two branch pipe sections 42, and each branch pipe section 42 is connected to a first pipe body 44. The number of first pipe bodies 44 is denoted as M, the number of through holes 5 is denoted as N, the flow area of ​​the through holes 5 is denoted as S1, and the flow area of ​​the inlet pipe 2 is denoted as S2. 1.2≤M*N*S1 / S2≤1.5.

[0052] In this technical solution, when the flow area of ​​all through holes 5 and the flow area of ​​the inlet pipe 2 satisfy 1.2≤M*N*S1 / S2≤1.5, it is equivalent to limiting the size of the through holes 5. This can simultaneously ensure the normal circulation of refrigerant in the system and reduce the impact force of refrigerant on the filter screen. When the number of branch pipe sections 42 is at least two, the refrigerant can be branched in multiple directions, further making the refrigerant distribution on the upper part of the filter screen more uniform and allowing for more complete refrigerant separation.

[0053] See also Figures 7 to 9As shown in Embodiment 2, the diversion pipe section 42 extends radially along the housing 1, and the outlet of the diversion pipe section 42 also faces radially towards the housing 1. This allows the refrigerant to flow out radially along the housing 1, resulting in a better buffering effect on the refrigerant and a lower refrigerant flow rate. Furthermore, in this embodiment, the number of diversion pipe sections 42 is at least two to improve the uniformity of the diversion.

[0054] See also Figure 12 and Figure 13 As shown, in Embodiment 3, the diversion pipe section 42 is curved, and its outlet faces the axial direction of the housing 1. While the curved diversion pipe section 42 is less effective at reducing refrigerant flow rate than the diversion pipe section 42 extending radially along the housing 1, its outlet is closer to the filter, resulting in less noise when the refrigerant passes through the filter. Furthermore, in this embodiment, the number of diversion pipe sections 42 is at least two to improve the uniformity of the flow distribution.

[0055] The separator also includes an exhaust pipe 6 and a separator partition 7. Both the exhaust pipe 6 and the separator partition 7 are located below the filter assembly 3. The separator partition 7 is fixed inside the housing 1. The exhaust pipe 6 includes a straight pipe section and a bent pipe section connected to one end of the straight pipe section. The straight pipe section is inside the housing 1 and passes through the separator partition 7. The bent pipe section passes through the bottom cover and extends to the outside of the housing 1.

[0056] Specifically, the diverter 4 and the inlet pipe 2 are detachably connected. Because the diverter 4 has a relatively complex structure, when it is detachably connected to the inlet pipe 2, the diverter 4 and the inlet pipe 2 can be assembled separately during the assembly of the dispenser, making the assembly of the dispenser more convenient. For the detachable connection method, the connecting pipe section 41 of the diverter 4 and the inlet pipe 2 can be inserted together with an interference fit, or the outer wall of the inlet pipe 2 can be provided with external threads, and the inner wall of the connecting pipe section 41 can be provided with internal threads, with the inlet pipe 2 and the connecting pipe section 41 being threadedly connected.

[0057] It should be noted that, Figures 11 to 14 The middle section also has a silencer section 43, but it is not shown in the figure.

[0058] The present invention also provides a compressor including the above-described distributor. The compressor further includes a distributor pressure plate 8, a rubber gasket 9, a large rubber plug 10, a terminal cover 11, a small rubber plug 12, an upper cover assembly 13, a compression assembly 14, a lower cover 15, and refrigerant oil 16.

[0059] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A liquid dispenser, characterized in that, The device includes a housing (1) and an inlet pipe (2). The housing (1) is provided with a filter assembly (3) and a diversion component (4). The diversion component (4) has a connecting pipe section (41), a diversion pipe section (42), and a silencer pipe section (43). The diversion pipe section (42) and the silencer pipe section (43) can communicate with the connecting pipe section (41). One end of the inlet pipe (2) passes through the housing (1) and is connected to the connecting pipe section (41). The diversion pipe section (42) is offset from the axial direction of the inlet pipe (2). The diversion pipe section (42) has an outlet. The end of the silencer pipe section (43) away from the connecting pipe section (41) is closed. A resonant cavity is formed inside the silencer pipe section (43). The filter assembly (3) is located on the side of the diversion component (4) away from the inlet pipe (2).

2. The dispenser according to claim 1, characterized in that, The number of the silencer pipe sections (43) is at least two, and the length of each silencer pipe section (43) is different.

3. The dispenser according to claim 2, characterized in that, The number of the silencer pipe sections (43) is even, and two silencer pipe sections (43) are paired with each other. The two silencer pipe sections (43) that are paired with each other are oriented oppositely on the diversion component (4), and the central axes of the two silencer pipe sections (43) that are paired with each other coincide.

4. The dispenser according to claim 3, characterized in that, The number of the diversion pipe sections (42) is even, and two diversion pipe sections (42) are paired with each other. The two diversion pipe sections (42) that are paired with each other are oriented oppositely on the diversion component (4), and the central axes of the two diversion pipe sections (42) that are paired with each other coincide. The number of the diversion pipe sections (42) is the same as the number of the silencer pipe sections (43).

5. The dispenser according to claim 1, characterized in that, The outlet is provided with a first pipe body (44), the end of the first pipe body (44) away from the diversion pipe section (42) is closed, and the first pipe body (44) is provided with a plurality of through holes (5), the diameter of each through hole (5) is smaller than the inner diameter of the inlet pipe (2).

6. The dispenser according to claim 5, characterized in that, The number of the diversion pipe sections (42) is at least two, and each of the diversion pipe sections (42) is connected to the first pipe body (44). The number of the first pipe bodies (44) is M, the number of the through holes (5) is N, the flow area of ​​the through holes (5) is S1, the flow area of ​​the inlet pipe (2) is S2, and 1.2≤(M*N*S1) / S2≤1.

5.

7. The dispenser according to claim 1, characterized in that, The diversion pipe section (42) extends radially along the housing (1), and the outlet faces radially toward the housing (1); and / or, the number of the diversion pipe sections (42) is at least two.

8. The dispenser according to claim 1, characterized in that, The diversion pipe section (42) is curved, and the outlet is axially oriented toward the housing (1); and / or, the number of the diversion pipe sections (42) is at least two.

9. The dispenser according to claim 1, characterized in that, The flow divider (4) is detachably connected to the inlet pipe (2).

10. A compressor, characterized in that, Includes the liquid dispenser as described in any one of claims 1 to 9.

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