CN219366272U - Exhaust pipe for compressor and compressor - Google Patents
Exhaust pipe for compressor and compressor Download PDFInfo
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- CN219366272U CN219366272U CN202320307846.4U CN202320307846U CN219366272U CN 219366272 U CN219366272 U CN 219366272U CN 202320307846 U CN202320307846 U CN 202320307846U CN 219366272 U CN219366272 U CN 219366272U
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The present utility model relates to a discharge pipe for a compressor and a compressor. The body of blast pipe is including being located the outer exhaust outlet section of compressor casing and being located exhaust entry section in the compressor casing, the exhaust entry section is provided with along radial first exhaust inlet of compressor and along the axial second exhaust inlet of compressor, the exhaust entry section is including fixed connection and the first pipeline section and the second pipeline section that are linked together, the pipe wall of second pipeline section encloses and closes and form the second exhaust inlet, just the cross-sectional area of flow of second pipeline section is followed and is kept away from the direction of first pipeline section reduces gradually. Through the arrangement, the structure of the existing exhaust pipe is only changed, and on the premise of ensuring the exhaust capacity of the compressor, the gas generated by compression can be effectively prevented from directly entering the exhaust pipe of the compressor upwards in the vertical direction and being discharged, an oil blocking part is not required to be additionally arranged, the material cost is not increased, the resistance welding device is suitable for resistance welding fixation, and the environmental protection performance of processing production is ensured.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to an exhaust pipe for a compressor and the compressor.
Background
The compressor is generally composed of an upper cover, a lower cover, a shell, a motor fixed in the shell for providing rotary power and a pump body for realizing refrigerant compression, wherein the pump body comprises an upper bearing, a lower bearing, a cylinder assembly, a piston, a crankshaft and other structures; in the prior art, a pump body and a motor of a compressor are arranged in a closed cavity formed by enclosing an upper cover, a lower cover and a shell, a proper amount of refrigerating machine oil is filled in the closed cavity to lubricate the pump body, and a system pipeline and the pump body of the compressor are filled with refrigerant; when the compressor runs, the refrigerating machine oil is pumped into the contact surface of each moving part of the pump body by the oil vane arranged at the bottom of the crankshaft to lubricate, wherein part of the refrigerating machine oil is mixed with the refrigerant, and is discharged after being compressed by the pump body and discharged, and enters the upper cavity of the compressor through the stator winding gap/the motor air gap/the stator refrigerant hole/the rotor refrigerant hole, the refrigerant and the refrigerating machine oil mixed gas in the whole shell spirally ascend under the disturbance of the rotor, and part of the refrigerating machine oil can enter into a system pipeline of an air conditioner and the like along with the gas refrigerant from an exhaust pipe welded and fixed on the upper cover. The oil content in the system is too high, so that on one hand, the heat exchange capacity of the system can be reduced, and the energy efficiency of the system is affected; on the other hand, the oil level in the compressor can be reduced, and the lubrication of the compressor is affected, so that the service life of the compressor is reduced.
In the traditional scheme, the rotor oil baffle plate or the stator oil baffle cover and other coping modes can be arranged to reduce oil discharge, but the material cost is obviously increased, only a part of mixed gas can be blocked, and the effect of reducing the oil discharge is limited; in addition, referring to fig. 1-3, fig. 1 is a schematic view of a straight exhaust pipe structure in the prior art, fig. 2 is a schematic view of a straight exhaust pipe resistance welding structure in the prior art, fig. 3 is a schematic view of a bent exhaust pipe and resistance welding assembly structure in the prior art, as shown in fig. 1, the exhaust pipe 2 in the prior art is fixed on the compressor housing 1 through resistance welding, two electrodes 3 of the resistance welding assembly need to be sleeved outside the exhaust pipe 2 and respectively pressed against the fixed base 21 of the exhaust pipe and the housing 1 during welding, the connection is realized by melting contact surfaces between the two electrodes by resistance heat generated during energizing and passing current, and in order to reduce oil entering the exhaust pipe directly, the conventional part of the machine is in a bent pipe mode, however, as shown in fig. 2, the bent part of the bent pipe of the exhaust pipe interferes with the electrodes of the resistance welding assembly, so that the welding cannot be mounted in a matched manner with the conventional electrodes, thus the resistance welding cannot be realized, the welding can only be performed, and the requirements of environmental protection and low-cost manufacturing are not satisfied.
Disclosure of Invention
Accordingly, an object of the present utility model is to provide an exhaust pipe for a compressor, which has a simple structure and can effectively reduce the discharge amount of compressor oil.
An exhaust pipe for a compressor is fixedly arranged on a shell of the compressor, and the shell is provided with an assembly hole in a penetrating way; the exhaust pipe comprises a pipe body and a fixed base which is annularly and convexly arranged on the outer surface of the pipe body, and the fixed base is fixedly arranged in the assembly hole in a penetrating manner;
the tube body includes a discharge outlet section located outside the compressor housing and a discharge inlet section located inside the compressor housing; the exhaust outlet section is provided with an exhaust outlet along the axial direction of the compressor; the exhaust inlet section is provided with a first exhaust inlet along the radial direction of the compressor and a second exhaust inlet along the axial direction of the compressor; the exhaust inlet section comprises a first pipe section and a second pipe section which are fixedly connected and communicated, the pipe wall of the first pipe section is provided with holes to form the first exhaust inlet, the pipe wall of the second pipe section is enclosed to form the second exhaust inlet, and the flow cross section of the second pipe section is gradually reduced along the direction away from the first pipe section.
According to the exhaust pipe for the compressor, through structural change and through the arrangement of the first exhaust inlet and the second exhaust inlet, on the premise of ensuring the exhaust capacity of the compressor, the first exhaust inlet is arranged along the radial direction of the compressor, and the second pipe section forming the second exhaust inlet is gradually reduced in the direction away from the first pipe section, so that high-temperature and high-pressure refrigerant gas generated by compression in the pump body of the compressor can be effectively prevented from directly entering the exhaust pipe of the compressor in the vertical direction and being discharged, the problem that lubricating oil in the compressor is carried by inclusion and enters the main part of an air conditioner to cause adverse effects is avoided, meanwhile, the problem that the internal lubricating oil of the compressor is insufficient is also avoided, the lubrication effect of the contact surface of movable parts is ensured, and abnormal abrasion is avoided; according to the technical scheme provided by the embodiment of the utility model, the oil blocking part is not required to be additionally arranged, the structure of the existing exhaust pipe is only changed, the end part of the second pipe section is utilized for oil blocking, the material cost is not increased, the suitability of fixing the exhaust pipe and the shell through resistance welding operation is not influenced, and the environmental protection of processing production is ensured.
Further, the second pipe section is symmetrically arranged about a first axial plane and a second axial plane, the first axial plane is perpendicular to the second axial plane, the distance from a point on the inner wall of the second pipe section to the first axial plane is gradually reduced along a direction away from the first pipe section, and the distance from the point on the inner wall of the second pipe section to the second axial plane is kept unchanged or gradually increased along the direction away from the first pipe section.
Further, the number of first exhaust inlets is at least 2, which are arranged at intervals along the circumference of the first pipe section.
Further, the number of first exhaust inlets is at least 2, which is symmetrically arranged about the first axial plane or the second axial plane.
Further, the number of the first exhaust inlets is at least 4, which are arranged at intervals along the axial direction of the exhaust inlet section, and each two of the first exhaust inlets are symmetrically arranged with respect to the first axial plane or the second axial plane.
Further, the total aperture area of the first exhaust inlet is 1.0 to 1.5 times the sectional area of the exhaust outlet section.
Further, the aperture area of the second exhaust inlet is 0.01 to 0.3 times of the sectional area of the exhaust outlet section.
Through the limitation, the exhaust speed can be ensured, and the aim of effectively reducing the oil discharge amount can be achieved.
Further, the first pipe section and the second pipe section are integrally formed.
In addition, the embodiment of the utility model also provides a compressor, which comprises a shell and the exhaust pipe for the compressor.
According to the compressor disclosed by the embodiment of the utility model, through the structural change of the exhaust pipe for the compressor, the oil discharge amount is effectively reduced, the internal lubrication effect is ensured, the service life is prolonged, meanwhile, the improvement cost is low, the suitability with the existing resistance welding assembly is good, the cost is reduced, the welding quality is high, and the environment friendliness is strong.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic view of a prior art straight exhaust pipe;
FIG. 2 is a schematic diagram of a prior art resistance welding of a straight exhaust pipe;
FIG. 3 is a schematic view of a prior art bent exhaust pipe and resistance welding assembly;
fig. 4 is a schematic view showing the structure of a discharge pipe for a compressor according to embodiment 1 of the present utility model;
FIG. 5 is a schematic view showing the mounting position of the exhaust pipe for the compressor according to embodiment 1 of the present utility model;
FIG. 6 is a schematic view showing a direction of an arrow T in FIG. 4 of a discharge pipe for a compressor according to embodiment 1 of the present utility model;
FIG. 7 is a schematic view showing a first axial plane structure of a pattern of a discharge pipe for a compressor according to embodiment 1 of the present utility model;
FIG. 8 is a schematic view showing a second axial plane structure of a pattern of a discharge pipe for a compressor according to embodiment 1 of the present utility model;
FIG. 9 is a schematic view showing a second axial plane structure of a second type of exhaust pipe for a compressor according to embodiment 1 of the present utility model;
FIG. 10 is a schematic view showing a second axial plane structure of a second exhaust pipe pattern for a compressor according to embodiment 1 of the present utility model;
FIG. 11 is a schematic view showing a second axial plane structure of a second type of exhaust pipe for a compressor according to embodiment 1 of the present utility model;
fig. 12 is a schematic view showing a second axial plane structure of a discharge pipe pattern for a compressor according to embodiment 1 of the present utility model.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1
Referring to fig. 4-5, fig. 4 is a schematic view of the structure of the exhaust pipe for a compressor according to embodiment 1 of the present utility model, and fig. 5 is a schematic view of the installation position of the exhaust pipe for a compressor according to embodiment 1 of the present utility model, embodiment 1 of the present utility model provides an exhaust pipe for a compressor, which is fixedly installed in a casing 1 of a compressor, wherein an assembly hole 11 is formed through the casing 1; the exhaust pipe for the compressor comprises a pipe body 2 and a fixed base 3 annularly protruding to the outer surface of the pipe body 2, wherein the fixed base 3 is fixedly arranged in the assembly hole 11 in a penetrating manner;
the pipe body 2 comprises an exhaust outlet section 21 located outside the housing 1 and an exhaust inlet section located inside the housing 1; the discharge outlet section 21 is provided with a discharge outlet 211 in the axial direction of the compressor; the exhaust gas inlet section is provided with a first exhaust gas inlet 221 along the radial direction of the compressor and a second exhaust gas inlet 222 along the axial direction of the compressor; the exhaust inlet section comprises a first pipe section 223 and a second pipe section 224 which are fixedly connected and communicated, the pipe wall of the first pipe section 223 is provided with a hole to form a first exhaust inlet 221, the pipe wall of the second pipe section 224 is enclosed to form a second exhaust inlet 222, and the flow cross section area of the second pipe section 224 is gradually reduced along the direction far away from the first pipe section 223.
According to the exhaust pipe for the compressor of the embodiment 1, by changing the structure, through the arrangement of the first exhaust inlet 221 and the second exhaust inlet 222, on the premise of ensuring the exhaust capacity of the compressor, the arrangement of the first exhaust inlet 221 along the radial direction of the compressor and the arrangement of the second pipe section 224 forming the second exhaust inlet 222 with the gradually reduced flow cross section along the direction far away from the first pipe section 223 can effectively prevent high-temperature and high-pressure refrigerant gas generated by compression in the pump body of the compressor from directly entering the exhaust pipe of the compressor upwards in the vertical direction and being discharged, thereby avoiding the adverse effect caused by the fact that lubricating oil in the compressor is carried by inclusion into the main part of the air conditioner, simultaneously avoiding the problem of insufficient internal lubricating oil of the compressor, ensuring the lubrication effect of the contact surface of movable parts and avoiding abnormal abrasion; according to the technical scheme provided by the embodiment of the utility model, an oil blocking part is not required to be additionally arranged, only the structure of the existing exhaust pipe is changed, the end part of the second pipe section 224 is utilized for oil blocking, the material cost is not increased, the suitability of fixing the exhaust pipe and the shell through resistance welding operation is not affected, and the environmental protection of processing production is ensured.
In this embodiment, referring to fig. 6, fig. 6 is a schematic view of the exhaust pipe for the compressor according to embodiment 1 of the present utility model along the direction indicated by the arrow T in fig. 4, and as shown in the drawing, the exhaust outlet section 21 and the exhaust inlet section 22 are tubular structures extending along the same central axis; the second pipe segment 224 is symmetrically disposed about a first axial plane α and a second axial plane β, where the first axial plane α and the second axial plane β are perpendicular to each other, and it should be noted that the first axial plane α and the second axial plane β are both planes on which a central axis of the second pipe segment 224 is located, and are disposed oppositely, and only schematic illustration is made in the drawings of the present embodiment; the distance from the point on the inner wall of the second tube section 224 to the first axial plane α decreases gradually in a direction away from the first tube section 223, and the distance from the point on the inner wall of the second tube section 224 to the second axial plane β remains unchanged or increases gradually in a direction away from the first tube section 223, as in the present embodiment increases gradually.
The number of the first exhaust inlets 221 may be 1, and as an alternative embodiment, the number of the first exhaust inlets 221 is at least 2, which are spaced along the circumference of the first pipe section 223 to ensure the exhaust effect and the exhaust rate; further, the number of the first exhaust inlets 221 is at least 2, which is symmetrically disposed about the first axial plane α or the second axial plane β, and the plurality of first exhaust inlets 221 are equally spaced along the circumferential direction of the first pipe section 223, as shown in fig. 7-8, fig. 7 is a schematic view illustrating a structure of an exhaust pipe pattern for a compressor along the first axial plane according to embodiment 1 of the present utility model, and fig. 8 is a schematic view illustrating a structure of an exhaust pipe pattern for a compressor along the second axial plane according to embodiment 1 of the present utility model, as shown in the drawings, the number of the second exhaust inlets 221 may be 2, which is symmetrically disposed about the first axial plane α or the second axial plane β; in addition, referring to fig. 9-10, fig. 9 is a schematic view showing a second axial plane structure of the exhaust pipe pattern for the compressor according to embodiment 1 of the present utility model, fig. 10 is a schematic view showing a second axial plane structure of the exhaust pipe pattern for the compressor according to embodiment 1 of the present utility model, as shown, the number of the second exhaust inlets 221 may be 4, in which every two second exhaust holes 22 are symmetrically disposed about the first axial plane α or the second axial plane β.
In addition, in other embodiments, referring to fig. 11-12, fig. 11 is a schematic view illustrating a structure of a second axial direction of the exhaust pipe pattern for the compressor according to embodiment 1 of the present utility model, and fig. 12 is a schematic view illustrating a structure of a second axial direction of the exhaust pipe pattern for the compressor according to embodiment 1 of the present utility model, wherein the number of the first exhaust inlets 221 is at least 4, in this embodiment, specifically 4, which are disposed at intervals along the axial direction of the exhaust inlet section, and each two first exhaust inlets 221 are symmetrically disposed about the first axial plane α or the second axial plane β.
Specifically, the total aperture area of the first exhaust inlet is 1.0-1.5 times of the sectional area of the exhaust outlet section, and the aperture area of the second exhaust inlet is 0.01-0.3 times of the sectional area of the exhaust outlet section. Through the limitation, the exhaust speed can be ensured, and the aim of effectively reducing the oil discharge amount can be achieved.
As an alternative embodiment, the first pipe section 223 and the second pipe section 224 are integrally formed, in a specific machining and forming process, the forming of the first exhaust inlet 221 may be performed by punching or drilling the existing exhaust pipe, the forming of the second pipe section 224 may be performed by deforming the existing exhaust pipe, for example, by performing a flattening operation on an end portion thereof in a radial direction, under which the clamped portion of the exhaust pipe is deformed under force, so as to obtain the second pipe section 224 defined in the embodiment of the present utility model, and controlling operation parameters such as clamping force, clamping time, and the like, so as to control the specific size of the second exhaust inlet 222; in addition, the opening of the existing exhaust pipe is plugged by welding and the like, so that the cross-sectional area of the second pipe section 224 and the size of the second exhaust inlet 222 can be controlled, and the technical purpose of blocking the refrigerating machine oil from being discharged along with gas can be achieved.
Example 2
An embodiment 2 of the present utility model provides a compressor, which includes a housing and the exhaust pipe for the compressor according to embodiment 1, wherein an assembly hole is formed through the top of the housing, and the exhaust pipe for the compressor is welded and fixed in the assembly hole.
According to the compressor disclosed by the embodiment of the utility model, through the structural change of the exhaust pipe for the compressor, the oil discharge amount is effectively reduced, the internal lubrication effect is ensured, the service life is prolonged, meanwhile, the improvement cost is low, the suitability with the existing resistance welding assembly is good, the cost is reduced, the welding quality is high, and the environment friendliness is strong.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (9)
1. An exhaust pipe for a compressor, which is fixedly installed on a shell of the compressor, is characterized in that:
the shell is provided with an assembly hole in a penetrating way; the exhaust pipe comprises a pipe body and a fixed base which is annularly and convexly arranged on the outer surface of the pipe body, and the fixed base is fixedly arranged in the assembly hole in a penetrating manner;
the tube body includes a discharge outlet section located outside the compressor housing and a discharge inlet section located inside the compressor housing; the exhaust outlet section is provided with an exhaust outlet along the axial direction of the compressor; the exhaust inlet section is provided with a first exhaust inlet along the radial direction of the compressor and a second exhaust inlet along the axial direction of the compressor; the exhaust inlet section comprises a first pipe section and a second pipe section which are fixedly connected and communicated, the pipe wall of the first pipe section is provided with holes to form the first exhaust inlet, the pipe wall of the second pipe section is enclosed to form the second exhaust inlet, and the flow cross section of the second pipe section is gradually reduced along the direction away from the first pipe section.
2. The exhaust pipe for a compressor according to claim 1, wherein: the second pipe section is symmetrically arranged about a first axial plane and a second axial plane, the first axial plane is perpendicular to the second axial plane, the distance from a point on the inner wall of the second pipe section to the first axial plane is gradually reduced along a direction away from the first pipe section, and the distance from the point on the inner wall of the second pipe section to the second axial plane is kept unchanged or gradually increased along the direction away from the first pipe section.
3. The exhaust pipe for a compressor according to claim 2, wherein: the number of first exhaust gas inlets is at least 2, which are arranged at intervals along the circumferential direction of the first pipe section.
4. The exhaust pipe for a compressor according to claim 2, wherein: the number of first exhaust gas inlets is at least 2, which are symmetrically arranged about the first axial plane or the second axial plane.
5. The exhaust pipe for a compressor according to claim 2, wherein: the number of first exhaust gas inlets is at least 4, which are arranged at intervals along the axial direction of the exhaust gas inlet section, and each two first exhaust gas inlets are symmetrically arranged about the first axial plane or the second axial plane.
6. The exhaust pipe for a compressor according to claim 2, wherein: the total aperture area of the first exhaust inlet is 1.0-1.5 times of the sectional area of the exhaust outlet section.
7. The exhaust pipe for a compressor according to claim 2, wherein: the aperture area of the second exhaust inlet is 0.01-0.3 times of the sectional area of the exhaust outlet section.
8. The exhaust pipe for a compressor according to claim 2, wherein: the first pipe section and the second pipe section are integrally formed parts.
9. A compressor, characterized in that: the exhaust pipe for the compressor comprises a shell and the exhaust pipe for the compressor, which is defined in any one of claims 1 to 8, wherein an assembly hole is formed in the top of the shell in a penetrating manner, and the exhaust pipe for the compressor is fixed in the assembly hole in a welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320307846.4U CN219366272U (en) | 2023-02-23 | 2023-02-23 | Exhaust pipe for compressor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320307846.4U CN219366272U (en) | 2023-02-23 | 2023-02-23 | Exhaust pipe for compressor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219366272U true CN219366272U (en) | 2023-07-18 |
Family
ID=87141421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320307846.4U Active CN219366272U (en) | 2023-02-23 | 2023-02-23 | Exhaust pipe for compressor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219366272U (en) |
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2023
- 2023-02-23 CN CN202320307846.4U patent/CN219366272U/en active Active
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