CN220102350U - Connecting pipe fitting for compressor and rotor compressor - Google Patents
Connecting pipe fitting for compressor and rotor compressor Download PDFInfo
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- CN220102350U CN220102350U CN202321455308.6U CN202321455308U CN220102350U CN 220102350 U CN220102350 U CN 220102350U CN 202321455308 U CN202321455308 U CN 202321455308U CN 220102350 U CN220102350 U CN 220102350U
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- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000003466 welding Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- 238000005219 brazing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of compressors, and discloses a connecting pipe fitting for a compressor and a rotor type compressor. The compressor includes a compressor housing and a reservoir, and the connecting tube for the compressor includes a first tube and a second tube. The first tube is configured to be connected to a reservoir; the second pipe comprises a second equal diameter section and a second expanded diameter section which are coaxially connected, the second equal diameter section is sleeved on the periphery of the first pipe, the second expanded diameter section is configured to be connected with the compressor shell, the diameter of the second expanded diameter section gradually increases from one end connected with the second equal diameter section to one end connected with the compressor shell, the outer diameter of the second equal diameter section is a second diameter value, the outer diameter of the end part of the second expanded diameter section connected with the compressor shell is a third diameter value, the ratio of the second diameter value to the third diameter value is in the range of 0.83-0.84, and the included angle between the pipe wall of the second expanded diameter section and the axis of the second expanded diameter section is 35-55 degrees.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a connecting pipe fitting for a compressor and a rotor type compressor.
Background
As shown in fig. 1, two connecting tubes are welded adjacent to the compressor housing. The connecting pipe fitting comprises a pipe body 100 and a skirt edge 101 positioned at the end part of the pipe body 100, wherein the skirt edge 101 is connected with the compressor shell through a pressure welding process.
If the center distance between the two connecting pipes is too small, the skirts 101 of the two connecting pipes interfere with each other, in one prior art, the skirts 101 are pressed and welded on the compressor shell by reducing the size of the skirts 101 to avoid interference, but the method can reduce the welding area between the connecting pipes and the shell and reduce the connection strength of the connecting pipes and the shell. In another prior art, the connecting tube without the skirt 101 is welded to the case by removing the skirt 101 of the connecting tube, using a manual brazing process, however, the manual brazing process is costly, the tact is slow, and the quality is difficult to control.
Disclosure of Invention
The utility model aims to provide a connecting pipe fitting for a compressor and a rotor type compressor, wherein the center distance between two adjacent connecting pipe fittings for the compressor can be smaller under the state that skirt edges do not interfere, and the connecting pipe fittings for the compressor have better connecting strength when being welded on a compressor shell through a pressure welding process.
To achieve the purpose, the utility model adopts the following technical scheme:
a connection tube for a compressor, the compressor comprising a compressor housing and a reservoir, comprising:
a first tube configured to be connected to the reservoir;
the second pipe comprises a second equal diameter section and a second expanded diameter section which are coaxially connected, the second equal diameter section is sleeved on the periphery of the first pipe, the second expanded diameter section is configured to be connected with the compressor shell, the diameter of the second expanded diameter section gradually increases from one end connected with the second equal diameter section to one end connected with the compressor shell, the outer diameter of the second equal diameter section is a second diameter value, the outer diameter of the end part of the second expanded diameter section connected with the compressor shell is a third diameter value, the ratio of the second diameter value to the third diameter value is in the range of 0.83-0.84, and the included angle between the pipe wall of the second expanded diameter section and the axis of the second expanded diameter section is 35-55 degrees.
Optionally, the first pipe comprises a first constant diameter section, the second constant diameter section is sleeved on the periphery of the first constant diameter section, the inner diameter of the first constant diameter section is a first diameter value, and the ratio of the first diameter value to the second diameter value is in the range of 0.82-0.91.
Optionally, the ratio of the first diameter value to the second diameter value is 0.859.
Optionally, the wall thickness of the first constant diameter section is a first wall thickness value, the wall thicknesses of the second constant diameter section and the second expanded diameter section are both second wall thickness values, and the difference of the second diameter value minus the first diameter value is twice the sum of the first wall thickness value and the second wall thickness value.
Optionally, the sum of the first wall thickness value and the second wall thickness value is 1.5mm.
Optionally, the first wall thickness value is 0.3mm and the second wall thickness value is 1.2mm.
Optionally, an included angle between the pipe wall of the second expanding section and the axis of the second expanding section is 45 degrees.
Optionally, the ratio of the second diameter value to the third diameter value is 0.835.
Optionally, the length of the second tube in the axial direction is in the range of 12 to 19 mm.
The rotor type compressor comprises the connecting pipe fitting for the compressor, a liquid storage device and a compressor shell, wherein the first pipe is connected with the liquid storage device, and the second expanding section is connected with the compressor shell.
The beneficial effects are that:
according to the connecting pipe fitting for the compressor and the rotor compressor, the ratio of the second diameter value to the third diameter value is between 0.83 and 0.84, so that the difference value between the second diameter expansion section and the second equal diameter section of the connecting pipe fitting for the compressor in the radial direction is smaller, the second diameter expansion section forms a narrower skirt compared with the second equal diameter section, the center distance between two adjacent connecting pipe fittings for the compressor can be smaller under the state that the skirt is not interfered, the application range of a pressure welding process for the connecting pipe fitting for the compressor is increased, the condition that a manual brazing process is used is reduced, the included angle between the pipe wall of the second diameter expansion section and the axis of the pipe fitting is 35-55 degrees, the second diameter expansion section is used as the skirt, the second diameter expansion section can be provided with a larger contact surface with a compressor shell, the welding area is increased, the connecting strength of the second diameter expansion section and the compressor shell is improved, and the connecting strength of the second diameter expansion section and the compressor shell meets the operation requirement of the rotor compressor through multiple experimental verification.
Drawings
FIG. 1 is a schematic illustration of the relative positional relationship of two connecting tubes for a compressor on a compressor housing;
fig. 2 is a schematic structural view of a connection pipe for a compressor according to an embodiment of the present utility model.
In the figure:
100. a tube body; 101. a skirt edge;
1. a first tube; 11. a first constant diameter section; 2. a second tube; 21. a second constant diameter section; 22. and a second expanding section.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
As shown in fig. 2, the present embodiment provides a connection tube for a compressor including a compressor housing and a reservoir.
With continued reference to fig. 2, in particular, the connection pipe for the compressor comprises a first pipe 1 and a second pipe 2. Wherein the first tube 1 is configured to be connected to a reservoir; the second pipe 2 comprises a second equal diameter section 21 and a second expanded diameter section 22 which are coaxially connected, the second equal diameter section 21 is sleeved on the periphery of the first pipe 1, the second expanded diameter section 22 is configured to be connected with a compressor shell, the diameter of the second expanded diameter section 22 gradually increases from one end connected with the second equal diameter section 21 to one end connected with the compressor shell, the outer diameter of the second equal diameter section 21 is a second diameter value, the outer diameter of the end of the second expanded diameter section 22 connected with the compressor shell is a third diameter value, the ratio of the second diameter value to the third diameter value is in the range of 0.83-0.84, and the included angle between the pipe wall of the second expanded diameter section 22 and the axis of the second expanded diameter section is 35-55 degrees. As shown in fig. 2, the second diameter value is D2 and the third diameter value is D3. In this embodiment, the first tube 1 is a copper tube and the second tube 2 is a steel seat. One end of the copper pipe is connected with the liquid storage device, the other end of the copper pipe is inserted into the steel seat, and the second diameter expansion section 22 of the steel seat is welded on the compressor shell through a pressure welding process. In this example, the second diameter value is 17.7mm, the third diameter value is 21.2mm, and the ratio of the second diameter value to the third diameter value is 0.835.
According to the connecting pipe fitting for the compressor, the ratio of the second diameter value to the third diameter value is between 0.83 and 0.84, so that the difference between the second expanded diameter section 22 and the second equal diameter section 21 of the connecting pipe fitting for the compressor in the radial direction is smaller, the second expanded diameter section 22 forms a narrower skirt compared with the second equal diameter section 21, the center distance between two adjacent connecting pipe fittings for the compressor can be smaller under the state that the skirt is not interfered, the application range of a pressure welding process for the connecting pipe fitting for the compressor is increased, the condition that a manual brazing process is used is reduced, moreover, the included angle between the pipe wall of the second expanded diameter section 22 and the axis of the pipe fitting is 35-55 degrees, the second expanded diameter section 22 serves as the skirt, the second expanded diameter section 22 and the compressor shell can have a larger contact surface, the welding area is increased, the connection strength between the second expanded diameter section 22 and the compressor shell is improved, and the connection strength between the second expanded diameter section 22 and the compressor shell meets the operation requirement of the rotor compressor through multiple experimental verification.
Alternatively, the length of the second tube 2 in the axial direction is in the range of 12 to 19 mm. As shown in fig. 2, the second tube 2 has a length L in the axial direction. The length of the second pipe 2 is controlled within the range of 12-19 mm, the processing is convenient, and the cost is low. In the present embodiment, the length of the second tube 2 in the axial direction is 13.3mm.
Optionally, the wall of the second expanded section 22 is angled 45 degrees from its axis. As shown in fig. 2, the pipe wall of the second expansion section 22 has an angle a with its axis. As shown in fig. 2, the length of the second expansion section 22 is L1, and when the included angle between the pipe wall of the second expansion section 22 and the axis thereof is 45 °, L1 is 3mm.
As shown in fig. 2, alternatively, the first pipe 1 includes a first constant diameter section 11, a second constant diameter section 21 is sleeved on the outer periphery of the first constant diameter section 11, the inner diameter of the first constant diameter section 11 is a first diameter value, and the ratio of the first diameter value to the second diameter value is in the range of 0.82-0.91. That is, the inner diameter of the first constant diameter section 11 is smaller than the outer diameter of the second constant diameter section 21, and the outer diameter difference between the first constant diameter section 11 and the second constant diameter section 21 is kept within the range of 0.82-0.91, so that the requirement of structural strength is met, and the wall thicknesses of the first constant diameter section 11 and the second constant diameter section 21 are reduced, so that materials are saved, and the cost is reduced. As shown in fig. 2, the first diameter value is D1, and in this embodiment, the first diameter value is 15.3mm, and the ratio of the first diameter value to the second diameter value is about 0.859.
Alternatively, the wall thickness of the first constant diameter section 11 is a first wall thickness value, the wall thicknesses of the second constant diameter section 21 and the second expanded diameter section 22 are both second wall thickness values, and the difference of the second diameter value minus the first diameter value is twice the sum of the first wall thickness value and the second wall thickness value. That is, the second constant diameter section 21 is fitted around the outer periphery of the first constant diameter section 11 without any gap. In this embodiment, the sum of the first wall thickness value and the second wall thickness value is 1.5mm. Further, the first wall thickness value is 0.3mm and the second wall thickness value is 1.2mm.
The present embodiment also provides a rotor compressor, which includes the connecting pipe for a compressor, and further includes a liquid reservoir and a compressor housing, wherein the first pipe 1 is connected to the liquid reservoir, and the second diameter-enlarging section 22 is connected to the compressor housing. The rotor type compressor can enable the center distance of the adjacent connecting pipe fitting for the compressor to be smaller by adopting the connecting pipe fitting for the compressor, and simultaneously meets the welding strength requirement when a pressure welding process is adopted between the connecting pipe fitting for the compressor and the compressor shell.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. A connect pipe fitting for compressor, compressor include compressor casing and reservoir, its characterized in that includes:
a first tube (1) configured to be connected to the reservoir;
the second pipe (2) comprises a second equal diameter section (21) and a second expanded diameter section (22) which are coaxially connected, the second equal diameter section (21) is sleeved on the periphery of the first pipe (1), the second expanded diameter section (22) is configured to be connected with the compressor shell, the diameter of the second expanded diameter section (22) gradually increases from one end connected with the second equal diameter section (21) to one end connected with the compressor shell, the outer diameter of the second equal diameter section (21) is a second diameter value, the outer diameter of the end connected with the compressor shell of the second expanded diameter section (22) is a third diameter value, the ratio of the second diameter value to the third diameter value is in the range of 0.83-0.84, and the included angle between the pipe wall of the second expanded diameter section (22) and the axis of the second expanded diameter section is 35-55 degrees.
2. A connection tube for a compressor according to claim 1, characterized in that the first tube (1) comprises a first constant diameter section (11), the second constant diameter section (21) is sleeved on the outer circumference of the first constant diameter section (11), the inner diameter of the first constant diameter section (11) is a first diameter value, and the ratio of the first diameter value to the second diameter value is in the range of 0.82-0.91.
3. The connection tube for a compressor of claim 2, wherein a ratio of the first diameter value to the second diameter value is 0.859.
4. Connecting tube for compressors according to claim 2, characterized in that the wall thickness of the first constant diameter section (11) is of a first wall thickness value, the wall thicknesses of the second constant diameter section (21) and the second expanded diameter section (22) are both of a second wall thickness value, the difference of the second diameter value minus the first diameter value being twice the sum of the first wall thickness value and the second wall thickness value.
5. The connection tube for a compressor of claim 4, wherein a sum of the first wall thickness value and the second wall thickness value is 1.5mm.
6. A connection tube for a compressor as claimed in claim 5, wherein the first wall thickness value is 0.3mm and the second wall thickness value is 1.2mm.
7. Connecting tube for compressors according to claim 1, characterized in that the angle between the wall of the second expanded section (22) and its axis is 45 degrees.
8. The connection tube for a compressor of claim 1, wherein a ratio of the second diameter value to the third diameter value is 0.835.
9. Connecting tube for compressors according to claim 1, characterized by the fact that the length of the second tube (2) in axial direction is in the range of 12-19 mm.
10. Rotor compressor, comprising a connection tube for a compressor according to any one of claims 1-9, further comprising a reservoir and a compressor housing, to which the first tube (1) is connected, to which the second expanded section (22) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455308.6U CN220102350U (en) | 2023-06-08 | 2023-06-08 | Connecting pipe fitting for compressor and rotor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455308.6U CN220102350U (en) | 2023-06-08 | 2023-06-08 | Connecting pipe fitting for compressor and rotor compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220102350U true CN220102350U (en) | 2023-11-28 |
Family
ID=88872042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321455308.6U Active CN220102350U (en) | 2023-06-08 | 2023-06-08 | Connecting pipe fitting for compressor and rotor compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220102350U (en) |
-
2023
- 2023-06-08 CN CN202321455308.6U patent/CN220102350U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |