CN202708448U - Vent duct of ventilator - Google Patents
Vent duct of ventilator Download PDFInfo
- Publication number
- CN202708448U CN202708448U CN 201220348630 CN201220348630U CN202708448U CN 202708448 U CN202708448 U CN 202708448U CN 201220348630 CN201220348630 CN 201220348630 CN 201220348630 U CN201220348630 U CN 201220348630U CN 202708448 U CN202708448 U CN 202708448U
- Authority
- CN
- China
- Prior art keywords
- pipe
- ventilator
- metal corrugated
- corrugated pipe
- metal bellows
- 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 - Fee Related
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Abstract
The utility model discloses a vent duct of a ventilator. The vent duct comprises a reducer pipe, a metal corrugated pipe and an air pipe. The metal corrugated pipe is arranged between a major end of the reducer pipe and the air pipe, is a double-layer helical or n-shaped corrugated pipe and made of a thin-wall stainless steel pipe and is provided with flanges at both ends. Since the flexible metal corrugated pipe is arranged between the major end of the reducer pipe and the air pipe, installation tolerance can be compensated, and axial, radial and rotary distortion can be resisted effectively owning to high displacement performance of the metal corrugated pipe. Besides, as the metal corrugated pipe has smooth wall and helical spring structure, turbulent ventilation is avoided, structural noise of elements and vibration of an air blower are relieved or eliminated, and the service life of a ventilation system is prolonged.
Description
Technical field
The utility model relates to ventilation duct, is specifically related to a kind of ventilator ventilation duct.
Background technique
Existing ventilator ventilation duct is to be connected to form by a joint reducer pipe and a joint or the isometrical airduct of more piece, and the reducer pipe small end is connected with ventilator, hold greatly to be connected with airduct, the other end of airduct be connected with wind devices.Ventilator, reducer pipe, airduct and be provided with flange with wind devices, bolt pass flange and are rigidly connected with ventilator, reducer pipe, airduct with wind devices.When air outlet of ventilator with the setting height(from bottom) of wind devices intake grill, length, when deviation appears in angle, rigidly connected ventilation duct is installed and is connected difficulty, and vibration and noise can occur when operation, pollutes working environment, damage system parts, reduce service life of equipment.
Summary of the invention
The purpose of this utility model is that a kind of ventilator ventilation duct of being convenient to connection to be installed, to slow down or to eliminate rigidity, intensity, stability and the fatigue life of system vibration and noise, raising ventilation system is provided for above-mentioned deficiency.
The purpose of this utility model is achieved in that a kind of ventilator ventilation duct, comprises reducer pipe, metal bellows and airduct, it is characterized in that: metal bellows is arranged between the large end and airduct of reducer pipe.
Described metal bellows adopts double-layer spiral type or Ω type bellows.
Described metal bellows adopts thin-wall stainless steel to make, and two ends are provided with flange.
Compared with prior art, the utility model has the advantages that:
1, the utility model arranges flexible metal bellows between the large end of reducer pipe and airduct, can compensate location tolerance on the one hand, its superpower displacement performance on the other hand, can effectively resist axially, radially, rotation distortion bearing capacity.
2, metal bellows has good damping performance, can slow down or eliminate the vibrations that blower spreads out of, and prolongs the working life of ventilation system.
3, the smooth tube wall of metal bellows, the spring structure of spiral makes and ventilates without turbulent flow, slows down or eliminate the structureborne noise of element.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: reducer pipe 1, metal bellows 2, airduct 3, flange 4.
Embodiment
The utility model is described in further detail by reference to the accompanying drawings for following embodiment.
See figure: a kind of ventilator ventilation duct comprises reducer pipe 1, metal bellows 2 and airduct 3.Metal bellows 2 is arranged between the large end and airduct 3 of reducer pipe 1.Metal bellows 2 adopts double-layer spiral type or Ω type bellows.Metal bellows 2 adopts thin-wall stainless steel to make, and two ends are welded with piping flange 4.Airduct 3 adopts joint or the isometrical airduct of more piece.
During installation, the utility model is connected to ventilator and with between the wind devices with bolt.The height of installing when system, length, when deviation appears in angle, can stretch to metal bellows 2, compress, bending or torsional deformation, realization flexibly connects, can play slow down or eliminate that ventilation system vibration, noise and compensation change because of the pipeline that expands with heat and contract with cold, mechanical displacement and vibration cause, equipment equidimension and axially, radially with the effect of angle displacement, guarantee the Rigidity and strength of ventilator ventilation system, improve stability and the fatigue life of ventilator ventilation system.
Claims (3)
1. a ventilator ventilation duct comprises reducer pipe (1), metal bellows (2) and airduct (3), it is characterized in that: metal bellows (2) is arranged between the large end and airduct (3) of reducer pipe (1).
2. said a kind of ventilator ventilation duct according to claim 1 is characterized in that described metal bellows (2) adopts double-layer spiral type or Ω type bellows.
3. said a kind of ventilator ventilation duct according to claim 1 and 2 is characterized in that described metal bellows (2) adopts thin-wall stainless steel to make, and two ends are provided with flange (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348630 CN202708448U (en) | 2012-07-18 | 2012-07-18 | Vent duct of ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348630 CN202708448U (en) | 2012-07-18 | 2012-07-18 | Vent duct of ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708448U true CN202708448U (en) | 2013-01-30 |
Family
ID=47588753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220348630 Expired - Fee Related CN202708448U (en) | 2012-07-18 | 2012-07-18 | Vent duct of ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708448U (en) |
-
2012
- 2012-07-18 CN CN 201220348630 patent/CN202708448U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |