CN219775040U - Copper corrugated pipe for refrigeration equipment - Google Patents
Copper corrugated pipe for refrigeration equipment Download PDFInfo
- Publication number
- CN219775040U CN219775040U CN202321105764.8U CN202321105764U CN219775040U CN 219775040 U CN219775040 U CN 219775040U CN 202321105764 U CN202321105764 U CN 202321105764U CN 219775040 U CN219775040 U CN 219775040U
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- CN
- China
- Prior art keywords
- section
- corrugated
- pipe
- tube
- copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 33
- 239000010949 copper Substances 0.000 title claims abstract description 33
- 238000005057 refrigeration Methods 0.000 title claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a copper corrugated pipe for refrigeration equipment, which comprises a pipe body, wherein a corrugated section is arranged on the pipe body, straight pipe sections are reserved at two ends of the pipe body respectively during corrugated molding, and a contracted pipe section passing through a contracted pipe is arranged on the straight pipe section, so that the inner diameter of the contracted pipe section is smaller than that of the original pipe body. According to the utility model, the inner diameter of the straight pipe section is changed by shrinking the straight pipe sections at the two ends of the corrugated copper pipe, so that the stable flow velocity of the refrigerant in the copper pipe is ensured, and the noise generated during the operation of equipment is reduced.
Description
Technical Field
The utility model relates to the technical field of copper pipes of refrigeration equipment, in particular to a copper corrugated pipe for refrigeration equipment.
Background
The copper pipe is used for conveying the refrigerant of the refrigeration equipment, and some factories in the market make the copper pipe into a corrugated shape at present, so that the refrigerant is conveyed in the pipe in a spiral shape, and the conveying efficiency is improved. The copper corrugated pipe is generally processed in two modes, one is to anneal and stretch the copper pipe into a semi-hard pipe and then process the semi-hard pipe into the corrugated pipe, and the other is to directly mold the copper pipe by cold working through a spiral rolling method. Referring to fig. 1, no matter how the processing mode is, a section of straight pipe section 2 needs to be reserved at two ends of the copper pipe, and the inner diameter of the straight pipe section 2 is larger than the inner diameter of the corrugated section 1 after corrugated forming, so that the flow velocity of the refrigerant entering the corrugated section 1 from the straight pipe section 2 or entering the straight pipe section 2 from the corrugated section 1 suddenly changes, the conveying efficiency is affected, and noise is generated.
Disclosure of Invention
The utility model aims to provide a copper corrugated pipe for refrigeration equipment, which solves the problems in the prior art mentioned in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a copper bellows for refrigeration plant, includes the body, be equipped with the ripple section on the body, and reserve respectively at the both ends of body when ripple shaping has the straight tube section, be equipped with the draw section through the draw on the straight tube section for the internal diameter of draw section is less than former body internal diameter.
Preferably, the inner diameter of the tube segment corresponds to the average inner diameter of the corrugated segment.
Preferably, the average inner diameter of the corrugated section corresponds to half of the sum of the maximum inner diameter and the minimum inner diameter of the corrugated section.
Preferably, the product of the square of the average inner diameter of the corrugated section and pi/4 corresponds to the volume per unit length of the corrugated section.
Preferably, two ends of the pipe body are respectively provided with pipe end connectors.
Preferably, the straight pipe section is provided with a detachable auxiliary wrench, the detachable auxiliary wrench is matched with the pipe end connector, and the side face of the detachable auxiliary wrench is provided with a notch with the width equivalent to the outer diameter of the contracted pipe section.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the inner diameter of the straight pipe section is changed by shrinking the straight pipe sections at the two ends of the corrugated copper pipe, so that the stable flow velocity of the refrigerant in the copper pipe is ensured, and the noise generated during the operation of equipment is reduced.
2. In the preferred embodiment of the utility model, the detachable auxiliary wrench is arranged to conveniently rotate the joint during copper pipe installation, and the auxiliary wrench is detached by just utilizing the small size of the contracted pipe section, so that the auxiliary wrench is recycled.
Drawings
Fig. 1 is a schematic diagram of the end structure of a corrugated copper pipe in the prior art.
Fig. 2 is a schematic diagram of the end structure of the corrugated copper pipe in the present utility model.
Fig. 3 is a schematic cross-sectional structure of the detachable auxiliary wrench of the present utility model.
Fig. 4 is a schematic view of a preferred construction of the detachable auxiliary wrench of the present utility model.
In the figure: 1. a corrugated section; 2. a straight pipe section; 3. a tube shrinking section; 4. a tube end fitting; 5. a detachable auxiliary wrench; 6. and (5) a notch.
Detailed Description
The present utility model will be further specifically described below by way of examples in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Example 1
The copper corrugated pipe for the refrigeration equipment comprises a corrugated section 1 and straight pipe sections respectively positioned at two ends of the corrugated section 1, wherein pipe end connectors 4 are respectively arranged at two outer end parts of the straight pipe sections and are used for being in butt joint with the refrigeration equipment.
In this embodiment, the straight pipe section is contracted by the contraction device to form the contracted pipe section 3, and the original size is changed to make the inner diameter smaller than that of the original pipe body.
Specifically, according to the theoretical effective cross-sectional area of the bellows:
A＝(D 2 +d 2 )π/8
wherein: d-maximum inner diameter of the corrugated pipe; d-minimum inner diameter of bellows;
it can be seen that the average inner diameter of the bellows is (d+d)/2, that is, when the inner diameter of the tube segment 3 is equal to the average inner diameter of the bellows, the flow velocity of the refrigerant flowing between the two can be kept relatively unchanged or changed less.
In the actual tube-shrinking process, the inner diameter of the tube-shrinking section 3 is difficult to measure or control, so that the tube wall thickness can be increased over the above-mentioned variables regarding the inner diameter, i.e. the outer diameter of the tube-shrinking section 3 corresponds to half of the sum of the maximum outer diameter and the minimum outer diameter of the bellows. More specifically, the maximum outer diameter of the corrugated pipe is the outer diameter of the original pipe before corrugated forming, and the minimum outer diameter is the outer diameter of the original pipe before corrugated forming minus 2h (h is the rolling depth during corrugated forming).
In addition, in order to facilitate the installation of the pipe end connector, manufacturers often set auxiliary wrenches on the pipe, which are usually metal pieces or hard plastic pieces, and two holding lugs are symmetrically arranged on two sides so as to apply torsion conveniently. The existing auxiliary wrench is generally sleeved on a pipe, cannot be taken down after the joint is installed, and cannot be reused.
In this embodiment, the size of the contracted pipe section 3 is smaller, and a notch 6 with the width corresponding to the outer diameter of the contracted pipe section is formed on the side surface of the auxiliary wrench, so that the auxiliary wrench becomes a detachable auxiliary wrench 5, and when in use, the detachable auxiliary wrench is sleeved on the copper pipe through the notch, and then the connector can be screwed. Because the contracted pipe section 3 is smaller in size, the width of the notch can be properly reduced relative to a copper pipe without a contracted pipe, so that the influence of the notch on the whole strength of the wrench is reduced.
In order to further enhance the strength of the detachable auxiliary wrench during operation, the detachable auxiliary wrench can also be made of hard metal or provided with a buckle at the notch (as shown in fig. 4).
Example 2
The size definition of the reduced pipe section in example 1 is biased to theory, and in practice, there is an error between the theoretical average inner diameter and the actual average inner diameter due to the different ways of corrugating, so this example adopts another way to define the size of the reduced pipe section.
Specifically, the actual average cross-sectional area of the copper tube is determined by measuring the volume of the copper tube in unit length (such as the water storage volume of the corrugated copper tube in unit length), and then the actual average inner diameter of the copper tube is obtained according to the area formula of the circle.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (6)
1. The utility model provides a copper bellows for refrigeration plant, includes the body, its characterized in that is equipped with the ripple section on the body, and has reserved straight tube section respectively in the both ends of body when ripple shaping, be equipped with the draw pipe section through the draw pipe on the straight tube section for the internal diameter of draw pipe section is less than former body internal diameter.
2. A copper corrugated tube for a refrigeration apparatus according to claim 1, wherein the inner diameter of the tube segment corresponds to the average inner diameter of the corrugated segment.
3. A copper corrugated tube for a refrigeration apparatus according to claim 2, wherein the average inner diameter of the corrugated section corresponds to half of the sum of the maximum inner diameter and the minimum inner diameter of the corrugated section.
4. A copper corrugated tube for a refrigeration apparatus according to claim 2, wherein the product of the square of the average inner diameter of the corrugated section and pi/4 corresponds to the volume per unit length of the corrugated section.
5. A copper corrugated tube for refrigeration equipment as set forth in claim 1 wherein said tube body is provided with tube end fittings at each end thereof.
6. The copper corrugated tube for refrigeration equipment according to claim 5, wherein the straight tube section is provided with a detachable auxiliary wrench, the detachable auxiliary wrench is matched with the tube end connector, and a notch with the width equivalent to the outer diameter of the contracted tube section is formed in the side face of the detachable auxiliary wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321105764.8U CN219775040U (en) | 2023-05-10 | 2023-05-10 | Copper corrugated pipe for refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321105764.8U CN219775040U (en) | 2023-05-10 | 2023-05-10 | Copper corrugated pipe for refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219775040U true CN219775040U (en) | 2023-09-29 |
Family
ID=88134783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321105764.8U Active CN219775040U (en) | 2023-05-10 | 2023-05-10 | Copper corrugated pipe for refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219775040U (en) |
-
2023
- 2023-05-10 CN CN202321105764.8U patent/CN219775040U/en active Active
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