CN204786966U - Pipeline on -off switch and have its aircraft environmental control system , aircraft - Google Patents
Pipeline on -off switch and have its aircraft environmental control system , aircraft Download PDFInfo
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- CN204786966U CN204786966U CN201520430426.0U CN201520430426U CN204786966U CN 204786966 U CN204786966 U CN 204786966U CN 201520430426 U CN201520430426 U CN 201520430426U CN 204786966 U CN204786966 U CN 204786966U
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- pipeline
- control system
- switch
- environmental control
- silencing means
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Abstract
The utility model discloses a pipeline on -off switch and have its aircraft environmental control system, aircraft. The pipeline on -off switch includes: pipeline body (1), it inserts to aircraft environmental control system's the pipeline in, silencing device (2), silencing device (2) set up in pipeline body (1), valve (3), it sets up in pipeline body (1), wherein, valve (3) are used for the break -make certainly the air current of transmission in aircraft environmental control system's the pipeline, silencing device (2) are used for the reduction to pass through the atmospheric pressure of the air current of silencing device (2). The utility model provides a pipeline on -off switch is put the valve together with silencing device, the valve is arranged in the air current of break -make from aircraft environmental control system's pipeline transmission, silencing device is used for reducing the atmospheric pressure through silencing device's air current. Adopt this kind of structure, effectively utilized the valve arrangement, just the utility model discloses a silencing device, simple structure, light in weight.
Description
Technical field
The utility model relates to plane environmental control system technical field, and particularly relate to a kind of pipeline on-off switch and have its plane environmental control system, aircraft, described pipeline on-off switch is for controlling the break-make of plane environmental control system pipeline.
Background technology
The aerodynamic system uniquely run through inside and outside passenger cabin that plane environmental control system is made up of noise sources such as a large amount of pneumatic accessories.By regulating the air from the high temperature of engine, high pressure and higher water capacity, through the decompression of pressure regulator, radiator, turbine and separator etc., cooling and dehumidifying, passenger cabin is assigned to finally by air pipe line, to meet the comfortableness requirement of occupant, and ensure the normal work of below deck equipment.
Owing to importing cooling assembly noise in cabin into, valve noise to be in fluid machinery gas and frame for movement interacts or flow separation, shock wave brought out, if control from the sound generating mechanism of noise source, accessory structure even operation principle certainly will be changed, the change of the index such as systematic function and reliability will be caused, and workload is large, enforcement difficulty is high, therefore should not adopt.Because the noise of this two large sound source institutes radiation spreads in passenger cabin mainly through air-conditioning duct, especially when temperature trimming system works, its air outlet place, downstream sound pressure level is significantly increased, therefore must by carrying out noise elimination process in acoustic propagation approach, effectively to control aircraft cockpit noise, meet the requirement of occupant's comfortableness.
In prior art, usually enter on the supply air line of passenger cabin or trim valve pipeline in environmental control system and install silencer additional, to hinder and attenuate acoustic noise is propagated.Namely in cabin, air trim valve upstream installs silencer additional, arranges sound insulating layer, avoids the medium, high frequency noise of valve radiation on the impact of interior noise field.
Therefore, wish a kind of technical scheme to overcome or at least alleviate at least one above-mentioned defect of prior art.
Utility model content
The purpose of this utility model is at least one the above-mentioned defect providing a kind of pipeline on-off switch to overcome or at least alleviate prior art.
For achieving the above object, the utility model provides a kind of pipeline on-off switch.Described pipeline on-off switch is for controlling the break-make of plane environmental control system pipeline, and described pipeline on-off switch comprises: pipeline body, and described pipeline body accesses in the pipeline of plane environmental control system; Silencing means, described silencing means is arranged in described pipeline body; Valve, described valve is arranged in described pipeline body; Wherein, described valve is used for the air-flow that break-make is transmitted in the pipeline of described plane environmental control system; Described silencing means is for reducing the air pressure of the air-flow by described silencing means.
Preferably, by the air-flow of described pipeline body first through described silencing means, then by described valve.
Preferably, quieter material is filled with between the outside of described silencing means and described pipeline body.
Preferably, described silencing means is fixedly connected with described pipeline body.
Preferably, described pipeline body is provided with back-up ring, described silencing means is fixedly connected with described back-up ring.
Preferably, multilayer noise reduction part is provided with in described silencing means.
Preferably, described noise reduction part is expanded material or microperforated panel.
Present invention also offers a kind of plane environmental control system, there is in described plane environmental control system pipeline on-off switch as above.
Present invention also offers a kind of aircraft, described aircraft comprises plane environmental control system as above.
Valve and silencing means are combined by the pipeline on-off switch in the utility model, and valve is used for the air-flow that break-make is transmitted in the pipeline of plane environmental control system; Silencing means is for reducing the air pressure of the air-flow by silencing means.Adopt this structure, efficiently utilize valve arrangement, and silencing means of the present utility model, structure is simple, lightweight.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pipeline on-off switch according to the utility model one embodiment.
Reference numeral:
| 1 | Pipeline body | 4 | Back-up ring |
| 2 | Silencing means | 5 | Microperforated panel |
| 3 | Valve |
Detailed description of the invention
The object implemented for making the utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, are further described in more detail the technical scheme in the utility model embodiment.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the utility model protection domain can not be interpreted as.
Pipeline on-off switch of the present utility model is for controlling the break-make of plane environmental control system pipeline, and described pipeline on-off switch comprises pipeline body, silencing means and valve.Wherein, pipeline body accesses in the pipeline of plane environmental control system, and silencing means and valve are all arranged in pipeline body.Valve is used for the air-flow that break-make is transmitted in the pipeline of plane environmental control system, and silencing means is for reducing the air pressure of the air-flow by silencing means.
Valve and silencing means are combined by the pipeline on-off switch in the utility model, and valve is used for the air-flow that break-make is transmitted in the pipeline of plane environmental control system; Silencing means is for reducing the air pressure of the air-flow by silencing means.Adopt this structure, efficiently utilize valve arrangement, and silencing means of the present utility model, structure is simple, lightweight.
In plane environmental control system pipeline, need in pipeline to be connected with pressure high temperature hot gas.
Pipeline on-off switch as shown in Figure 1 comprises pipeline body 1, silencing means 2 and valve 3.Pipeline body 1 accesses in the pipeline of plane environmental control system, and silencing means 2 and valve 3 are all arranged in pipeline body 1, the air-flow that described valve 3 transmits in the pipeline of plane environmental control system for break-make; Silencing means 2 for reducing the air pressure of the air-flow by silencing means 2, thus when air-flow is discharged in plane environmental control system pipeline, reduces the noise that it sends.
See Fig. 1, in the present embodiment, by the air-flow of pipeline body 1 first through silencing means 2, then by valve 3, namely relative to the direction of motion of air-flow, first air-flow reduces air pressure by silencing means 2, thus again through valve 3.
Be understandable that, in an alternative embodiment, before valve, be provided with silencing means at air-flow, and at air-flow after valve, be also provided with silencing means, thus farthest reduce air pressure.
Be understandable that, silencing means only can also be arranged on the region of air-flow after valve.
See Fig. 1, in the present embodiment, quieter material (not shown) is filled with between the outside of silencing means 2 and pipeline body 1.Erasure effect is increased further with this.
In the present embodiment, silencing means 2 is fixedly connected with pipeline body 1.Particularly, see Fig. 1, in the present embodiment, institute's pipeline body 1 is provided with back-up ring 4, and silencing means 2 is fixedly connected with back-up ring 4.
Be understandable that, above-mentioned being fixedly connected with can be the modes such as welding, riveted joint.
See Fig. 1, in the present embodiment, multilayer noise reduction part is provided with in silencing means 2.
Be understandable that, the number of plies of above-mentioned noise reduction part can be arranged as required and voluntarily.Such as, 3 layers, 4 layers.
In the present embodiment, noise reduction part is microperforated panel 5, adopt this structure, because microperforated panel has corrosion-resistant, high temperature resistant, cleanliness without any pollution, can bear the advantage of the impact of high velocity air, and the reproduced air-flow noise passing through it is little, flow resistance is low, sqouynd absorption lowering noise superior performance, noise elimination frequency band wide ranges, structure is simple, lightweight.
Be understandable that, in an alternative embodiment, noise reduction part is expanded material.
The utility model additionally provides a kind of plane environmental control system, has pipeline on-off switch as above in described plane environmental control system.
The utility model additionally provides a kind of aircraft, and described aircraft comprises plane environmental control system as above.
Finally it is to be noted: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit.Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a pipeline on-off switch, for controlling the break-make of plane environmental control system pipeline, is characterized in that, described pipeline on-off switch comprises:
Pipeline body (1), described pipeline body (1) accesses in the pipeline of plane environmental control system;
Silencing means (2), described silencing means (2) is arranged in described pipeline body (1);
Valve (3), described valve (3) is arranged in described pipeline body (1); Wherein,
The air-flow that described valve (3) transmits in the pipeline of described plane environmental control system for break-make; Described silencing means (2) is for reducing the air pressure of the air-flow by described silencing means (2).
2. pipeline on-off switch as claimed in claim 1, is characterized in that, by the air-flow of described pipeline body (1) first through described silencing means (2), then by described valve (3).
3. pipeline on-off switch as claimed in claim 2, is characterized in that, be filled with quieter material between the outside of described silencing means (2) and described pipeline body (1).
4. pipeline on-off switch as claimed in claim 3, it is characterized in that, described silencing means (2) is fixedly connected with described pipeline body (1).
5. pipeline on-off switch as claimed in claim 4, it is characterized in that, described pipeline body (1) is provided with back-up ring (4), described silencing means (2) is fixedly connected with described back-up ring (4).
6. pipeline on-off switch as claimed in claim 1, is characterized in that, be provided with multilayer noise reduction part in described silencing means (2).
7. pipeline on-off switch as claimed in claim 6, it is characterized in that, described noise reduction part is expanded material or microperforated panel (5).
8. a plane environmental control system, is characterized in that, has pipeline on-off switch as claimed in any of claims 1 to 7 in one of claims in described plane environmental control system.
9. an aircraft, is characterized in that, described aircraft comprises plane environmental control system as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430426.0U CN204786966U (en) | 2015-06-23 | 2015-06-23 | Pipeline on -off switch and have its aircraft environmental control system , aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430426.0U CN204786966U (en) | 2015-06-23 | 2015-06-23 | Pipeline on -off switch and have its aircraft environmental control system , aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204786966U true CN204786966U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520430426.0U Active CN204786966U (en) | 2015-06-23 | 2015-06-23 | Pipeline on -off switch and have its aircraft environmental control system , aircraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204786966U (en) |
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2015
- 2015-06-23 CN CN201520430426.0U patent/CN204786966U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |