Intake pipe and reservoir for reservoir

Abstract

The present invention relates to the field of compressor technology, and provides an air intake pipe for a liquid reservoir and a liquid reservoir. The air intake pipe for the liquid reservoir is sealedly connected to the air inlet of the liquid reservoir, and the air intake pipe for the liquid reservoir includes a first pipe section extending from the air inlet into the liquid reservoir, the port of the first pipe section is sealed, a through hole is provided on the pipe wall of the first pipe section, and a filter screen surrounding and covering the through hole is provided on the outer pipe wall of the first pipe section, and the filter screen protrudes away from the central axis of the air intake pipe for the liquid reservoir. The present invention seals the port of the first pipe section, provides a through hole on the pipe wall, and surrounds and covers the through hole with a filter screen, so that the refrigerant gas passes through the through hole on the pipe wall, is filtered by the filter screen, and flows into the cylinder of the liquid reservoir. The sealed port and the filter screen covering the through hole achieve dual effective filtration of impurity particles in the refrigerant gas, and can increase the flow area of ​​the refrigerant gas.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to an air intake pipe for a liquid accumulator and a liquid accumulator comprising the air intake pipe for the liquid accumulator. Background Art

[0002] The liquid receiver is an important component in the air conditioning pipeline. It is installed on the suction side of the compressor and plays the role of gas-liquid separation and refrigerant buffering.

[0003] Figure 1 The structure of the existing liquid reservoir is shown. Figure 2 Shows the structure of the intake pipe of the existing liquid reservoir, combined with Figure 1 and Figure 2 As shown, refrigerant gas flows from the intake pipe 11 into the cylinder 12 of the conventional accumulator and is then drawn into the compressor through the air duct 13. The diameter d of the intake pipe 11 is limited by the size design of the air inlet 120 of the cylinder 12 and cannot be changed, resulting in the flow area of ​​the intake pipe 11 being unable to be adjusted according to demand.

[0004] In addition, although the existing liquid storage device is provided with a filter 14 between the air inlet pipe 11 and the air duct 13, the filter 14 can only play a preliminary filtering role. Some fine impurity particles will still flow into the air duct 13 with the refrigerant gas, causing the compressor suction to be blocked.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0006] In view of this, the present invention provides an air inlet pipe for a liquid reservoir and a liquid reservoir including the air inlet pipe for a liquid reservoir, which can effectively filter foreign particles in the refrigerant gas flowing into the liquid reservoir cylinder and increase the flow area of ​​the refrigerant gas.

[0007] One aspect of the present invention provides an air intake pipe for a liquid reservoir, which is sealedly connected to the air inlet port of the liquid reservoir. The air intake pipe for the liquid reservoir includes a first pipe section extending from the air inlet port into the liquid reservoir, the port of the first pipe section is sealed, a through hole is opened on the pipe wall of the first pipe section, and a filter screen surrounding and covering the through hole is provided on the outer pipe wall of the first pipe section, and the filter screen protrudes away from the central axis of the air intake pipe for the liquid reservoir.

[0008] In some embodiments, the edge of the filter screen is fixed to the outer tube wall of the first tube segment via an annular fixing member, and the annular fixing member surrounds the edge of the through hole at intervals.

[0009] In some embodiments, the annular fixing member is an annular iron sheet, and the annular iron sheet fixes the edge of the filter screen to the outer pipe wall of the first pipe section by interference fit or welding.

[0010] In some embodiments, the air inlet pipe for the liquid reservoir is integrally formed into at least one end sealing structure of the port seal.

[0011] In some embodiments, a flow area of ​​the through hole is larger than a cross-sectional area of ​​the air duct of the liquid reservoir.

[0012] In some embodiments, the flow area S1 of the through hole and the cross-sectional area S2 of the air duct satisfy: S1 / S2>1.01.

[0013] In some embodiments, the through holes include a plurality of through holes evenly spaced apart along the circumference of the first tube segment.

[0014] In some embodiments, the shapes of the plurality of through holes are circular, oval or square.

[0015] In some embodiments, the air inlet pipe for the liquid reservoir further includes a second pipe section located outside the air inlet, and a tube wall of the second pipe section forms a radially concave and / or convex positioning structure along the second pipe section.

[0016] Another aspect of the present invention provides a liquid reservoir, comprising: a cylinder, wherein an air inlet is provided at the top of the cylinder; and an air inlet pipe for the liquid reservoir as described in any of the above embodiments, wherein the refrigerant gas entering the air inlet pipe for the liquid reservoir flows into the cylinder through the through hole and the filter.

[0017] The beneficial effects of the present invention compared with the prior art include at least:

[0018] The port of the first pipe section of the liquid reservoir air inlet pipe extending into the liquid reservoir is sealed, a through hole is formed in the pipe wall of the first pipe section, and the through hole is surrounded by a filter screen. The refrigerant gas entering the liquid reservoir air inlet pipe passes through the through hole in the pipe wall, is filtered by the filter screen, and then flows into the cylinder of the liquid reservoir. The sealed port and the filter screen covering the through hole effectively filter impurity particles in the refrigerant gas.

[0019] By adjusting the size and number of through holes, the circulation area of ​​the refrigerant gas can be increased to meet higher refrigerant gas circulation requirements.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are incorporated into and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and it is clear that those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0022] Figure 1 Shown is a structural schematic diagram of an existing liquid reservoir;

[0023] Figure 2 A schematic diagram showing the structure of an air intake pipe of an existing liquid reservoir is shown;

[0024] Figure 3 A schematic structural diagram of an air intake pipe for a liquid reservoir according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic structural diagram of a liquid reservoir according to an embodiment of the present invention is shown;

[0026] Figure 5 and Figure 6 Schematic diagrams of the structure of the air intake pipe for the liquid reservoir in other embodiments of the present invention are shown. DETAILED DESCRIPTION

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present disclosure comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. Furthermore, the accompanying drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Identical reference numerals in the figures indicate identical or similar parts, and thus a repeated description thereof will be omitted.

[0028] The terms "first," "second," and similar terms used in the specific description do not indicate any order, quantity, or importance, but are merely used to distinguish different components. It should be noted that, unless there is a conflict, the embodiments of the present invention and the features of different embodiments may be combined with each other.

[0029] Figure 3 The structure of the air intake pipe for the liquid reservoir in the embodiment is shown. Figure 4 Shows the structure of the reservoir, combined with Figure 3 and Figure 4As shown, the reservoir air inlet pipe 31 is sealedly connected to the air inlet 30 of the reservoir 3. The reservoir air inlet pipe 31 includes a first pipe section 311 extending from the air inlet 30 into the barrel 32 of the reservoir 3. The port 312 of the first pipe section 311 is sealed. A through hole 313 is formed in the wall of the first pipe section 311, and a filter 314 is provided on the outer wall of the first pipe section 311 to surround and cover the through hole 313. The filter 314 protrudes away from the central axis Y of the reservoir air inlet pipe 31, that is, the filter 314 protrudes outward along the arrow X in the figure to conform to the flow direction of the refrigerant gas and provide sufficient filtering space.

[0030] Compared to the air inlet pipe of a conventional liquid reservoir, the portion of the liquid reservoir air inlet pipe 31 in this embodiment that extends into the liquid reservoir 3 is longer, forming a first pipe section 311. In this embodiment, the port 312 of the first pipe section 311 is sealed, a through hole 313 is formed in the wall of the first pipe section 311, and a filter screen 314 is provided around the through hole 313. This allows refrigerant gas entering the liquid reservoir air inlet pipe 31 to pass through the through hole 313 in the wall, be filtered by the filter screen 314, and then flow into the barrel 32 of the liquid reservoir 3. The sealed port 312 and the filter screen 314 covering the through hole 313 provide a dual and effective filtration of impurity particles in the refrigerant gas.

[0031] Specifically, large impurity particles and liquid components in the refrigerant gas are deposited at the sealed port 312, while small impurity particles in the refrigerant gas are intercepted by the filter 314, thereby achieving dual effective filtration. In addition, the design of the size and number of through-holes 313 can effectively increase the circulation area of ​​the refrigerant gas, thereby meeting higher refrigerant gas circulation requirements.

[0032] Furthermore, the edge of the filter screen 314 is fixed to the outer wall of the first pipe section 311 via an annular fixing member 315, which surrounds the edge of the through hole 313 at intervals. That is, the filter screen 314 covers the through hole 313 and is slightly larger than the through hole 313. Around the periphery of the through hole 313, the edge of the filter screen 314 is fixed to the outside of the through hole 313 by the annular fixing member 315. A gap exists between the edge of the filter screen 314 and the edge of the through hole 313, allowing impurities to settle.

[0033] In one embodiment, the annular fixing member 315 is an annular iron sheet, which fixes the edge of the filter screen 314 to the outer pipe wall of the first pipe section 311 by interference fit or welding.

[0034] In one embodiment, the reservoir air intake pipe 31 is integrally formed with at least one end sealed at the port 312 to avoid using other assembly structures that may affect the sealing of the port 312. Alternatively, the reservoir air intake pipe 31 can be integrally formed with the port 312 sealed and the first pipe section 311 having a through hole 313 formed in the pipe wall.

[0035] When assembling the air inlet pipe 31 for the liquid reservoir and the cylinder 32 of the liquid reservoir 3, the first pipe section 311 of the air inlet pipe 31 for the liquid reservoir with a sealed port 312 can be first extended into the air inlet 30 of the upper cover part of the cylinder 32 and welded to the air inlet 30 for sealing; then, the filter screen 314 is assembled outside the through hole 313 of the first pipe section 311 through the annular fixing piece 315; finally, the upper cover part of the cylinder 32 is welded to the main body part of the cylinder 32 to complete the assembly of the air inlet pipe 31 for the liquid reservoir and the cylinder 32.

[0036] The position of the through hole 313 along the central axis Y of the reservoir air inlet pipe 31 can be determined based on specific needs. For example, in some examples, a first spacing h1 between the through hole 313 and the port 312 is equal to or slightly smaller than a second spacing h2 between the through hole 313 and the sealed connection between the reservoir air inlet pipe 31 and the air inlet port 30.

[0037] The flow area of ​​the through-hole 313 is slightly larger than the cross-sectional area of ​​the air duct 33 of the liquid reservoir 3. It should be noted that one or more through-holes 313 may be provided, and the flow area of ​​the through-hole 313 referred to herein specifically refers to the total flow area of ​​all through-holes 313. The flow area of ​​the through-hole 313 can be increased by increasing the number of through-holes 313 or enlarging the diameter of the through-hole 313 to accommodate higher refrigerant gas flow requirements.

[0038] In one specific example, the flow area S1 of the through hole 313 and the cross-sectional area S2 of the air duct 33 satisfy: S1 / S2>1.01. In other embodiments, the flow area S1 of the through hole 313 and the cross-sectional area S2 of the air duct 33 can also be adjusted according to specific needs.

[0039] When multiple through-holes 313 are formed in the wall of the first tube section 311, the multiple through-holes 313 are preferably evenly spaced along the circumference of the first tube section 311 to ensure uniform circulation of the refrigerant gas and avoid localized impacts on the gas pressure within the cylinder 32 of the liquid reservoir 3. The through-holes 313 can be circular, oval, square, or other special shapes. In a preferred embodiment, the through-holes 313 are circular to ensure smooth flow of the refrigerant gas.

[0040] Figure 4 In the structure of the liquid reservoir 3 shown, no traditional filter structure is set between the air duct 33 and the air inlet pipe 31 for the liquid reservoir. The sealed port 312 of the air inlet pipe 31 for the liquid reservoir and the filter 314 surrounding and covering the through hole 313 can effectively filter the refrigerant gas. In specific applications, another layer of filter structure can be set between the air duct 33 and the air inlet pipe 31 for the liquid reservoir as needed to enhance the filtering effect.

[0041] Figure 5 and Figure 6Shows the structure of the air intake pipe for the liquid reservoir in some other embodiments, combined with Figures 3 to 6 As shown, the reservoir air intake pipe 31 further includes a second pipe section 316 located outside the air inlet 30. The wall of the second pipe section 316 forms a radially concave and / or convex positioning structure 317 along the second pipe section 316. The positioning structure 317 serves to connect and position the reservoir air intake pipe 31 during connection with the air conditioning system piping and internal testing.

[0042] The embodiment of the present invention also provides a liquid storage device, referring to Figure 3 and Figure 4 As shown, the liquid reservoir 3 includes a cylinder 32, the top of which is provided with an air inlet 30; and an air inlet pipe 31 for the liquid reservoir, which is sealed and connected to the air inlet 30. The air inlet pipe 31 for the liquid reservoir partially extends from the air inlet 30 into the cylinder 32, forming a first pipe section 311. The port 312 of the first pipe section 311 is sealed, and a through hole 313 is provided on the pipe wall. The through hole 313 is surrounded by a filter 314. The refrigerant gas entering the air inlet pipe 31 for the liquid reservoir flows into the cylinder 32 through the through hole 313 and the filter 314. Large impurity particles and liquid components in the refrigerant gas are deposited at the sealed port 312, and small impurity particles in the refrigerant gas are intercepted by the filter 314, achieving dual effective filtration of the refrigerant gas.

[0043] Furthermore, the flow area of ​​the through hole 313 is larger than the cross-sectional area of ​​the air guide tube 33 in the liquid reservoir 3 , thereby increasing the flow rate of the refrigerant gas entering the liquid reservoir 3 and adapting to higher refrigerant gas flow requirements.

[0044] In summary, the air inlet pipe 31 for the liquid reservoir and the liquid reservoir 3 including the air inlet pipe 31 for the liquid reservoir of the present invention, by sealing the port 312 of the first pipe section 311 extending the air inlet pipe 31 for the liquid reservoir into the liquid reservoir 3, open a through hole 313 on the pipe wall of the first pipe section 311, and surround the through hole 313 with a covering filter 314, so that the refrigerant gas entering the air inlet pipe 31 for the liquid reservoir passes through the through hole 313 on the pipe wall, is filtered by the filter 314, and then flows into the cylinder 32 of the liquid reservoir 3, the sealed port 312 and the filter 314 covering the through hole 313 perform dual effective filtration on the impurity particles in the refrigerant gas; and, by adjusting the size and number of the through holes 313, the flow area of ​​the refrigerant gas can be effectively increased, so that the liquid reservoir 3 can meet higher refrigerant gas flow requirements.

[0045] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. An air inlet pipe for a liquid reservoir, sealedly connected to the air inlet of the liquid reservoir, characterized in that: The liquid reservoir air inlet pipe includes a first pipe section extending from the air inlet into the liquid reservoir, the end of the first pipe section is sealed, a through hole is formed on the pipe wall of the first pipe section, and a filter is provided on the outer pipe wall of the first pipe section to surround and cover the through hole, the filter protruding in the direction of flow of the refrigerant gas and away from the central axis of the liquid reservoir air inlet pipe to provide a filtering space; The edge of the filter screen is fixed to the outer wall of the first pipe section by an annular fixing member, and the annular fixing member surrounds the edge of the through hole at intervals, so that a space for impurities to be deposited is reserved between the edge of the filter screen and the edge of the through hole; The flow area of ​​the through hole is larger than the cross-sectional area of ​​the air guide tube of the liquid reservoir.

2. The air intake pipe for the liquid accumulator according to claim 1, wherein: The annular fixing member is an annular iron sheet, and the annular iron sheet fixes the edge of the filter screen to the outer pipe wall of the first pipe section by interference fit or welding.

3. The air intake pipe for the liquid accumulator according to claim 1, wherein: The air inlet pipe for the liquid reservoir is integrally formed into at least one end sealing structure of the port seal.

4. The air intake pipe for a liquid accumulator according to claim 1, wherein: The flow area S1 of the through hole and the cross-sectional area S2 of the air duct satisfy: S1 / S2>1.

01.

5. The air intake pipe for a liquid accumulator according to claim 1, wherein: The through holes include a plurality of through holes evenly spaced apart along the circumference of the first pipe segment.

6. The air intake pipe for the liquid accumulator according to claim 5, characterized in that: The shapes of the plurality of through holes are circular, oval or square.

7. The air intake pipe for a liquid accumulator according to claim 1, wherein: The air inlet pipe for the liquid reservoir further comprises a second pipe section located outside the air inlet port, and a pipe wall of the second pipe section forms a positioning structure that is concave inward and / or convex outward along the radial direction of the second pipe section.

8. A liquid reservoir, characterized in that: include: A cylinder, wherein the top end of the cylinder is provided with an air inlet; The air inlet pipe for a liquid reservoir according to any one of claims 1 to 7, wherein the refrigerant gas entering the air inlet pipe for the liquid reservoir flows into the cylinder through the through hole and the filter.

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