CN2924230Y - Low-flow-resistance noise-eliminating corrugated pipe - Google Patents
Low-flow-resistance noise-eliminating corrugated pipe Download PDFInfo
- Publication number
- CN2924230Y CN2924230Y CN 200620074833 CN200620074833U CN2924230Y CN 2924230 Y CN2924230 Y CN 2924230Y CN 200620074833 CN200620074833 CN 200620074833 CN 200620074833 U CN200620074833 U CN 200620074833U CN 2924230 Y CN2924230 Y CN 2924230Y
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- CN
- China
- Prior art keywords
- bellows
- flow resistance
- metal wire
- pitch
- flow
- 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.)
- Expired - Lifetime
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- Rigid Pipes And Flexible Pipes (AREA)
- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a low-flow-resistance noise-eliminating corrugated pipe belonging to the technical field of flexible metal tubing (metal bellows). The bellows includes an outer bellows and the improvement of the bellows is that a spiral metal wire is arranged in the bellows. The pitch of the metal wire spiral is matched with the wave pitch of the outer bellows. The outer diameter dimension of the metal wire is between the big diameter and the small diameter of the bellows. When cold fluid flows rapidly through the bellows of the utility model, the spiral metal wire in the bellows prevents the fluid from forming a vortex at the corrugation site so as to inhibit and even eliminate a howling caused by the vortex moving and reduce the flow resistance.
Description
Technical field
The utility model relates to a kind of bellows, and especially a kind of architecture advances of bellows belongs to metallic hose (metal bellows) technical field.
Background technique
Connect split-type air conditioner soon and have advantages such as installation cost is lower, easy to use, therefore promoted rapidly abroad.Yet, this air-conditioning unit require supporting with it refrigerant connect the flexible pipe flow resistance little, do not have utter long and high-pitched sounds noise, high-low temperature resistant, and existing metallic hose can not reach this performance requirement, the flow resistance during work is bigger, and howling is arranged.
Summary of the invention
The purpose of this utility model is: at the problem of above prior art existence, a kind of low flow resistance de-noising bellows is provided, thereby reduce flow resistance, reduction or eliminate mobile rapidly the uttering long and high-pitched sounds and other operating noise of causing of coolant, satisfy the supporting demand of air-conditioning equipment development.
In order to reach above purpose, low flow resistance de-noising bellows of the present utility model comprises outward corrugated tube, its improvements are to be mounted with helical metal wire in the pipe, the pitch of described wire spiral and the pitch of waves of outward corrugated tube match, and described wire spiral outside dimension is between the big footpath and path of outward corrugated tube.
Like this, when cold liquid flows through bellows of the present utility model rapidly, the eddy current that the helical metal wire in the pipe has avoided fluid to form at the ripple place, thus suppress even eliminated moving the uttering long and high-pitched sounds of causing of eddy current, reduced flow resistance.
Bellows of the present utility model can be continuously shaped, and manufacturing efficiency is higher.Its beneficial effect is: can effectively reduce the flow resistance in the flow of refrigerant process, and reduce refrigeration agent the uttering long and high-pitched sounds of generation in flowing rapidly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is an embodiment's of the utility model a structural representation.
Embodiment
The low flow resistance de-noising bellows of this example during manufacturing, is wound in coil spring shape with stainless steel steel wire pitch and outside dimension in accordance with regulations as shown in Figure 1, and the pitch of waves of its pitch T and outward corrugated tube 1 matches, and the thickness of convolution t of gauge of wire d1 and bellows matches.The outside dimension of steel wire helical spring 2 is between the big footpath D and path d of outward corrugated tube.
During the bellows moulding, the Stainless Steel Wire spring is placed in the welded tube, moves, embed in the crest of bellows with welded tube.In heat treatment furnace, carry out molten admittedly the processing after the bellows moulding, eliminate the stress that produces in the forming process.Like this,, Stainless Steel Wire is made the spring of certain specification, in the process of bellows forming equipment moulding volute, add, promptly can be made into the bellows that twines steel wire in required by special process.Its specification has DN6, DN8, DN10, DN12, DN15 etc.This product is used for the connection of external domestic air conditioning indoor and outdoor machine (connecing split-type air conditioner soon), characteristics such as has and cost is low easy for installation.Therefore facts have proved,, reduce flow resistance effectively, can eliminate uttering long and high-pitched sounds that coolant produces in flow process rapidly owing to twine steel wire in the bellows.
In a word, evidence, the low flow resistance de-noising bellows of this example has solved flow resistance problems that metallic hose occurs and because of the problem of uttering long and high-pitched sounds that flows and produce rapidly of coolant, the environmental protection effect of the product of raising in the using process of air-conditioning unit.
Claims (3)
1. low flow resistance de-noising bellows, comprise outward corrugated tube, it is characterized in that: be mounted with helical metal wire in the pipe, the pitch of described wire spiral and the pitch of waves of outward corrugated tube match, and described wire spiral outside dimension is between the big footpath and path of outward corrugated tube.
2, according to the described low flow resistance de-noising bellows of claim 1, it is characterized in that: the thickness of convolution of described diameter wiry and bellows matches.
3, according to the described low flow resistance de-noising bellows of claim 1, it is characterized in that: described wire is for embedding the Stainless Steel Wire in the bellows crest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074833 CN2924230Y (en) | 2006-07-12 | 2006-07-12 | Low-flow-resistance noise-eliminating corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074833 CN2924230Y (en) | 2006-07-12 | 2006-07-12 | Low-flow-resistance noise-eliminating corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924230Y true CN2924230Y (en) | 2007-07-18 |
Family
ID=38260662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620074833 Expired - Lifetime CN2924230Y (en) | 2006-07-12 | 2006-07-12 | Low-flow-resistance noise-eliminating corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924230Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667288A (en) * | 2009-11-05 | 2012-09-12 | 新日铁住金不锈钢株式会社 | Stainless steel flexible pipe |
-
2006
- 2006-07-12 CN CN 200620074833 patent/CN2924230Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667288A (en) * | 2009-11-05 | 2012-09-12 | 新日铁住金不锈钢株式会社 | Stainless steel flexible pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070718 |
|
| EXPY | Termination of patent right or utility model |