CN217602867U - Silencing cavity structure for improving air suction efficiency - Google Patents
Silencing cavity structure for improving air suction efficiency Download PDFInfo
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- CN217602867U CN217602867U CN202123350240.9U CN202123350240U CN217602867U CN 217602867 U CN217602867 U CN 217602867U CN 202123350240 U CN202123350240 U CN 202123350240U CN 217602867 U CN217602867 U CN 217602867U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a noise reduction cavity structure for improving air suction efficiency, which comprises a noise reduction cavity body, wherein a horn air inlet is arranged on the side surface of the noise reduction cavity body, the horn air inlet is connected with an air inlet channel which inclines downwards, the air inlet channel is communicated with the bottom of the noise reduction cavity body, a cambered baffle is arranged on the bottom surface of the noise reduction cavity body, the direction of a cambered opening of the cambered baffle is opposite to an air outlet hole of the air inlet channel, a vertical exhaust pipeline is arranged right above an opening between the cambered baffle and the air outlet hole of the air inlet channel, the exhaust pipeline penetrates through the top surface of the noise reduction cavity body, an air outlet is arranged at the side position of the top of the exhaust pipeline, and an installation structure is also arranged at the top of the exhaust pipeline; the utility model has the advantages of high efficiency, stable air flow and low noise.
Description
Technical Field
The utility model relates to compressor spare part technical field, concretely relates to promote amortization cavity structure of efficiency of breathing in.
Background
The silencing cavity is also called as a suction silencer and is a key part influencing the energy efficiency ratio and the noise of the whole compressor. During the suction of the compressor, the refrigerant gas passes through the suction muffler and then enters the cylinder. When refrigerant gas passes through an internal pipeline of the suction muffler, the problem of insufficient gas delivery quantity exists, and the mass flow in the suction process is influenced, so that the refrigerating capacity is influenced, and the energy efficiency ratio of the whole compressor is finally influenced. Therefore, in order to increase the gas transmission amount of the suction muffler and reduce the flow loss of the refrigerant gas in the internal pipe of the suction muffler, it is important to consider how to optimize the structure of the suction pipe. Meanwhile, another important function of the suction muffler is to reduce the overall noise of the compressor through transmission loss.
The utility model discloses a chinese utility model patent (CN 202023174316.2) discloses a reciprocating piston compressor is with muffler of breathing in, including the amortization chamber, be equipped with air inlet and gas outlet on the amortization chamber, be equipped with the interior intubate of both ends intercommunication air inlet and gas outlet respectively in the amortization chamber, the amortization chamber is including divided expansion chamber and resonant cavity, interior intubate air inlet end sets up in the expansion chamber, and the air inlet is just setting up the air inlet, air inlet and air inlet formation interval, the resonant cavity includes that the volume is different and divided first resonant cavity and second resonant cavity, interior intubate is located and is equipped with the first bloop and the second bloop that communicate first resonant cavity and second resonant cavity respectively on the pipe wall of resonant cavity, and first bloop and second bloop set up relatively, interior intubate inside pipe wall is smooth. The structure is relatively complex, two times of welding are needed during manufacturing, the cost is high, and the air flow is diffused twice in the silencer, so that the air suction efficiency is easily influenced.
In the past engineering practice, the fluid performance and the acoustic performance of the suction muffler are two contradictory indexes, and cannot be optimized and improved simultaneously. How to seek a technical scheme aiming at the air suction silencer and balancing the fluid performance and the acoustic performance of the air suction silencer, and reducing the noise of the whole compressor or not influencing the noise of the whole compressor while improving the energy efficiency ratio of the whole compressor is an industrial problem in the development process of the compressor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high efficiency, the air current is stable, the little amortization cavity structure of promotion efficiency of breathing in of noise to the problem that prior art exists.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a promote amortization cavity structure of efficiency of breathing in, includes the amortization cavity, be provided with the loudspeaker air inlet on the side of amortization cavity, the loudspeaker air inlet is connected with the decurrent inlet channel of slope, inlet channel with the bottom intercommunication of amortization cavity, be provided with the cambered surface baffle on the bottom surface of amortization cavity, the arc mouth direction of cambered surface baffle with inlet channel's venthole is relative, the cambered surface baffle with be provided with vertical exhaust duct directly over the open-ended between inlet channel's the venthole, exhaust duct runs through the top surface of amortization cavity, exhaust duct's top is opened at the side position has the gas vent, exhaust duct's top still is provided with mounting structure.
In the above scheme the inspiratory gas that loudspeaker air inlet can be better, the bottom intercommunication of inlet channel slope downwards and amortization cavity is favorable to lengthening the flow length and the flow time of gas in the amortization intracavity, improve the noise cancelling effect, the arc mouth direction of cambered surface baffle and venthole can be relatively led and cushion the air current that the venthole came out, make the air current flow direction cambered surface baffle and venthole between the vertical exhaust duct directly over the open-ended, reduce the disorder of air current in amortization intracavity inner space, reduce the noise that the air current impacted the production to the inside of amortization chamber, exhaust duct passes the amortization cavity and makes the air current flow to the cylinder from the top gas vent in, exhaust duct's top sets up mounting structure and installs.
The interior of the silencing cavity is hollow and is connected by a first-stage channel and a second-stage channel, meanwhile, the connection part of the first-stage channel and the second-stage channel is disconnected, an arc-shaped baffle is arranged at the position of a first-stage air suction channel, airflow forms upward movement through the refraction of an arc surface, and through calculation and simulation, the airflow can directly flow into the second-stage channel of the silencing cavity through reflection and is finally discharged through an exhaust port; this scheme can improve the efficiency of breathing in, reduces the loss of breathing in, reduces the disorder of air current in amortization intracavity inner space simultaneously, causes the impact to the inner wall and produces resonance noise.
Further, the cambered surface baffle comprises a cambered surface and a vertical back surface opposite to the cambered surface, and a tangent line at the highest point of the cambered surface is in the vertical direction.
The arc is led the air current that air outlet department came in, and the tangent line of the highest point department of arc is vertical direction to directly in the exhaust duct with the air current direction vertical direction, the disorder that the air current dispersion of reduction process caused improves the efficiency of breathing in.
Further, the width of the cambered baffle is larger than that of the air outlet hole.
The width of the cambered surface baffle is larger than that of the air outlet hole, so that the air flow flowing out of the air outlet hole is guided, and the air flow directly flows into the exhaust pipeline in the vertical direction.
Furthermore, the lowest position of the bottom surface of the silencing cavity is provided with an oil leakage hole, and the oil leakage hole is formed in one side of the vertical back surface of the cambered surface baffle.
The oil leakage hole is formed in the lowest position of the cavity, so that oil flowing into the silencing cavity along with the air flow flows out, the oil leakage hole is formed in one side of the vertical back face of the cambered baffle, and air flow fluctuation at the oil leakage hole is reduced.
Furthermore, the mounting structure comprises a pressing boss arranged on the back face of the exhaust pipeline and positioning bosses arranged on two sides of the exhaust pipeline.
The back of exhaust duct sets up and compresses tightly the boss, conveniently compresses tightly the location, and the exhaust duct both sides set up the location boss and carry out vertical and horizontal orientation's location to the amortization cavity.
Furthermore, the silencing cavity comprises an upper cavity and a lower cavity, a clamping groove connecting structure is arranged on the connecting surface of the upper cavity and the lower cavity, and the clamping groove connecting structure is welded through a welding wire ring.
The silencing cavity is divided into an upper cavity and a lower cavity, so that the upper cavity and the lower cavity are convenient to manufacture and install, the clamping groove connecting structure is arranged to facilitate the positioning of the connecting surface, and the clamping groove connecting structure is fixed through the welding wire ring, so that the upper cavity and the lower cavity are sealed.
Furthermore, the lower side of the exhaust port is provided with a T-shaped connecting structure, the height of the mounting surface of the exhaust port is flush with the surface height of the T-shaped connecting structure, and a sealing rib is arranged on the surface of the mounting surface of the exhaust port and the surface of the T-shaped connecting structure.
The T-shaped connecting structure with the surface height being flush with the mounting surface height of the exhaust port is arranged, the strength of the mounting surface is enhanced, the sealing ribs are arranged on the surfaces of the mounting surface and the T-shaped connecting structure, the sealing performance of the exhaust port is enhanced, and the air suction efficiency is improved.
Furthermore, the section of the exhaust duct is capsule-shaped, and the bottom end of the exhaust duct is located at the middle-lower position of the silencing cavity.
The capsule type air intake device can increase the area of the air flow passage, make the air flow smooth and improve the air intake efficiency. The bottom end of the exhaust pipeline is positioned at the middle lower part of the silencing cavity, so that gas at the air outlet can enter the exhaust pipeline as soon as possible, and the air suction efficiency is improved.
Furthermore, the air outlet is of an annular structure with a wavy line curve, and a protruding structure is arranged on the side face of the air outlet.
The gas vent sets up to the loop configuration of taking the wave line curve, increases the area of gas vent, improves exhaust efficiency, is provided with protruding structure on the side of gas vent, makes the connection firm, increases the heat radiating area of side junction.
Further, the included angle between the air inlet flow channel and the horizontal direction is 0-40 degrees.
The included angle between the air inlet flow channel and the horizontal direction is 0-40 degrees, and air flow fluctuation caused by overlarge angle between the air inlet flow channel and the exhaust pipeline is avoided.
Furthermore, bellows mounting structures are arranged on the front side face and the rear side face of the horn air inlet, and an anti-collision annular boss is arranged on the outer ring of the oil leakage hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model is provided with the air inlet channel which is matched with the cambered baffle to directly guide the air flow to the exhaust pipeline, thereby reducing the loss of the air in the silencer, reducing the disorder of the air flow in the silencer cavity and improving the air suction efficiency;
2. the air inlet channel and the exhaust pipeline of the utility model are arranged in a disconnected mode, so that the gas sound waves are diffused at the air outlet to be silenced, most of the air flow can be directly guided to the exhaust pipeline through the cambered baffle, and meanwhile, the sound waves are absorbed and reflected to be diffused, thereby reducing the disorder of the air flow in the silencing cavity and reducing the resonance noise generated by the impact of the air flow on the inner wall;
3. the utility model discloses a design of gas vent shape, exhaust duct shape and inlet channel shape angle makes the air current stable, is favorable to improving gas flow efficiency.
Drawings
FIG. 1 is a three-dimensional structure diagram of a muffling chamber structure for improving the air suction efficiency of the present invention;
FIG. 2 is a top view of a muffling chamber structure for enhancing the air suction efficiency of the present invention;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
fig. 4 is a front view of the upper chamber body of the present invention;
FIG. 5 is a top view of the middle and lower chambers of the present invention;
in the figure: 1. a silencing cavity; 2. a horn air inlet; 3. an air inlet channel; 4. a cambered surface baffle; 5. an air outlet; 6. an exhaust duct; 7. an exhaust port; 8. an arc-shaped surface; 9. an oil leakage hole; 10. compressing the boss; 11. positioning the boss; 12. a T-shaped connection structure; 13. sealing the rib; 14. and (4) a convex structure.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention or simplifying the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed or operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 5, a muffling cavity structure for improving air suction efficiency includes a muffling cavity 1, a horn air inlet 2 is disposed on a side surface of the muffling cavity 1, the horn air inlet 2 is connected with an air inlet flow channel 3 inclined downward, the air inlet flow channel 3 is communicated with a bottom of the muffling cavity 1, an arc baffle 4 is disposed on a bottom surface of the muffling cavity 1, an arc direction of the arc baffle 4 is opposite to an air outlet 5 of the air inlet flow channel 3, a vertical exhaust pipe 6 is disposed right above an opening between the arc baffle 4 and the air outlet 5 of the air inlet flow channel 3, the exhaust pipe 6 penetrates through the top surface of the muffling cavity 1, an air outlet 7 is disposed at a side position of a top portion of the exhaust pipe 6, and a mounting structure is further disposed at the top portion of the exhaust pipe 6.
In the above-mentioned scheme the inspiratory gas that loudspeaker air inlet 2 can be better, 3 slopes of inlet flow path are favorable to lengthening the flow length and the flow time of gas in the amortization intracavity with the bottom intercommunication of amortization cavity 1 downwards, improve noise cancelling effect, the arc mouth direction of cambered surface baffle 4 and venthole 5 can be relatively to leading and buffering the air current that venthole 5 came out, make air current flow direction cambered surface baffle 4 and venthole 5 between the vertical exhaust duct 6 of open-ended directly over, reduce the disorder of air current at amortization intracavity inner space, reduce the noise that the air current produced to the inside impact of amortization cavity, exhaust duct 6 passes amortization cavity 1 and makes the air current flow to the cylinder from top gas vent 7 in, exhaust duct 6's top sets up mounting structure and installs.
Further, cambered surface baffle 4 includes arcwall face 8 and with the vertical back that arcwall face 8 is relative, the tangent line of 8 highest points on arcwall face is vertical direction.
The air current that 8 arcwall faces got into 5 departments of venthole leads, and the tangent line of 8 highest points on arcwall face is vertical direction to directly in leading the exhaust duct 6 of vertical direction with the air current, reduce the disorder that the air current dispersion of process caused, improve the efficiency of breathing in.
Further, the width of the cambered surface baffle 4 is larger than that of the air outlet 5.
The width of the cambered surface baffle 4 is larger than that of the air outlet hole 5, so that the air flow flowing out of the air outlet hole 5 is guided, and the air flow directly flows into the exhaust pipeline 6 in the vertical direction.
Furthermore, the lowest part of the bottom surface of the silencing cavity 1 is provided with an oil leakage hole 9, and the oil leakage hole 9 is arranged on one side of the vertical back surface of the cambered baffle 4.
The oil leakage hole 9 is formed in the lowest position of the cavity, so that oil flowing into the silencing cavity 1 along with the air flow flows out, the oil leakage hole is formed in one side of the vertical back face of the cambered baffle 4, and air flow fluctuation of the oil leakage hole 9 is reduced.
Further, the mounting structure comprises a pressing boss 10 arranged on the back surface of the exhaust duct 6 and positioning bosses 11 arranged on two sides of the exhaust duct 6.
The back of exhaust duct 6 sets up and compresses tightly boss 10, conveniently compresses tightly the location, and exhaust duct 6 both sides set up location boss 11 and carry out the location of vertical and horizontal direction to amortization cavity 1.
Further, the silencing cavity 1 comprises an upper cavity and a lower cavity, a clamping groove connecting structure is arranged on the connecting surface of the upper cavity and the lower cavity, and the clamping groove connecting structure is welded through a welding wire ring.
The silencing cavity 1 is divided into an upper cavity and a lower cavity, so that the upper cavity and the lower cavity are convenient to manufacture and install, the clamping groove connecting structure is arranged to facilitate the positioning of a connecting surface, and the clamping groove connecting structure is fixed through a welding wire ring, so that the upper cavity and the lower cavity are sealed.
Furthermore, the lower side of the exhaust port 7 is provided with a T-shaped connecting structure 12, the height of the mounting surface of the exhaust port 7 is flush with the height of the surface of the T-shaped connecting structure 12, and a sealing rib 13 is arranged on the surface of the mounting surface of the exhaust port 7 and the surface of the T-shaped connecting structure 12.
The T-shaped connecting structure 12 with the surface height being flush with the mounting surface height of the exhaust port 7 is arranged, the strength of the mounting surface is enhanced, the sealing ribs 13 are arranged on the surfaces of the mounting surface and the T-shaped connecting structure 12, the sealing performance of the exhaust port 7 is enhanced, and the air suction efficiency is improved.
Further, the sectional shape of the exhaust duct 6 is a capsule, and the bottom end of the exhaust duct 6 is located at the middle lower position of the muffling cavity 1.
The area of the gas flow channel is enlarged, so that the gas flows smoothly, and the gas suction efficiency is improved. The bottom end of the exhaust pipeline 6 is positioned at the middle lower part of the silencing cavity 1, so that gas at the air outlet 5 enters the exhaust pipeline 6 as soon as possible, and the air suction efficiency is improved.
Further, the exhaust port 7 is an annular structure with a wavy curve, and a convex structure 14 is arranged on the side surface of the exhaust port 7.
The exhaust port 7 is of an annular structure with a wavy line curve, the area of the exhaust port 7 is enlarged, the exhaust efficiency is improved, the protruding structures 14 are arranged on the side faces of the exhaust port 7, the connection is stable, and the heat dissipation area of the side face connection part is enlarged.
Further, the angle between the air inlet flow channel 3 and the horizontal direction is 0-40 degrees.
The included angle between the air inlet flow channel 3 and the horizontal direction is 0-40 degrees, and air flow fluctuation caused by overlarge angle between the air inlet flow channel 3 and the exhaust pipeline 6 is avoided.
Furthermore, bellows mounting structures are arranged on the front side and the rear side of the horn air inlet 2, and anti-collision annular bosses are arranged on the outer ring of the oil leakage hole 9.
Example 2
The silencing cavity structure for improving the air suction efficiency of the embodiment is further optimized on the basis of the embodiment 1:
further, the section of the exhaust duct 6 is circular. The exhaust port 7 is circular. Easy processing and stable airflow.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a promote amortization cavity structure of efficiency of breathing in, its characterized in that, includes the amortization cavity, be provided with the loudspeaker air inlet on the side of amortization cavity, the loudspeaker air inlet is connected with the decurrent inlet channel of slope, inlet channel with the bottom intercommunication of amortization cavity, be provided with cambered surface baffle on the bottom surface of amortization cavity, the arc mouth direction of cambered surface baffle with the venthole of inlet channel is relative, cambered surface baffle with be provided with vertical exhaust duct directly over the open-ended between the venthole of inlet channel, exhaust duct runs through the top surface of amortization cavity, exhaust duct's top is opened at the side position has the gas vent, exhaust duct's top still is provided with mounting structure.
2. The muffling chamber structure for improving the suction efficiency of claim 1, wherein the cambered baffle comprises an arc-shaped surface and a vertical back surface opposite to the arc-shaped surface, and a tangent at the highest point of the arc-shaped surface is in a vertical direction.
3. The structure of sound-muffling chamber for improving suction efficiency as set forth in claim 2, wherein the width of said baffle is greater than the width of said air outlet.
4. The structure of a muffling cavity for improving the suction efficiency as recited in claim 2, wherein the lowest portion of the bottom surface of the muffling cavity has an oil leak hole, and the oil leak hole is formed on the vertical back side of the baffle.
5. The structure of a muffling chamber for improving the suction efficiency as set forth in claim 1, wherein the mounting structure comprises a pressing boss provided on a back surface of the exhaust duct and positioning bosses provided on both sides of the exhaust duct.
6. The muffling cavity structure for improving the air suction efficiency according to claim 1, wherein the muffling cavity comprises an upper cavity and a lower cavity, and a connecting surface of the upper cavity and the lower cavity is provided with a slot connecting structure, and the slot connecting structure is welded by a wire ring.
7. The muffling cavity structure for improving the suction efficiency as recited in claim 1, wherein a T-shaped connecting structure is disposed at a lower side of the exhaust port, a height of a mounting surface of the exhaust port is flush with a height of a surface of the T-shaped connecting structure, and a sealing rib is disposed on the mounting surface of the exhaust port and the surface of the T-shaped connecting structure.
8. The structure of a muffling chamber for improving the suction efficiency as set forth in claim 1, wherein the sectional shape of the exhaust duct is a capsule type, and the bottom end of the exhaust duct is located at the middle-lower position of the muffling chamber.
9. The muffling chamber structure for improving the suction efficiency as recited in claim 1, wherein the exhaust port has a ring shape with a wavy curve, and a convex structure is disposed on a side surface of the exhaust port.
10. The muffling chamber structure for enhancing suction efficiency of claim 1, wherein the angle of the inlet flow channel with respect to the horizontal is 0-40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123350240.9U CN217602867U (en) | 2021-12-28 | 2021-12-28 | Silencing cavity structure for improving air suction efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123350240.9U CN217602867U (en) | 2021-12-28 | 2021-12-28 | Silencing cavity structure for improving air suction efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217602867U true CN217602867U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123350240.9U Active CN217602867U (en) | 2021-12-28 | 2021-12-28 | Silencing cavity structure for improving air suction efficiency |
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| Country | Link |
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| CN (1) | CN217602867U (en) |
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2021
- 2021-12-28 CN CN202123350240.9U patent/CN217602867U/en active Active
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