CN202833034U - Silencer with double sound eliminating functions - Google Patents
Silencer with double sound eliminating functions Download PDFInfo
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- CN202833034U CN202833034U CN 201220536224 CN201220536224U CN202833034U CN 202833034 U CN202833034 U CN 202833034U CN 201220536224 CN201220536224 CN 201220536224 CN 201220536224 U CN201220536224 U CN 201220536224U CN 202833034 U CN202833034 U CN 202833034U
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- pipe
- inner tube
- tube
- baffler
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Abstract
The utility model discloses a silencer with double sound eliminating functions, and belongs to the field of compressor accessories. The silencer comprises an air inlet pipe, an inner pipe, an expanding pipe and an air outlet pipe. The inner pipe is arranged in the expanding pipe. The air inlet pipe and the air outlet pipe are arranged outside the expanding pipe. The silencer further comprises a rear cover. One end of the expanding pipe is connected with the air inlet pipe and the inner pipe, and the other end of the expanding pipe is connected with the rear end. The air outlet pipe is connected with the rear cover. A micro expanding pipe is arranged on the inner pipe. The micro expanding pipe is formed by connection of a first sloped face, a second plane and a second sloped face in sequence along a section of the parallel direction of an inner pipe axis. When an air current enters into the silencer, sound eliminating effects are firstly achieved in the micro expanding pipe, and then in the expanding pipe, and therefore double sound eliminating functions are achieved. The silencer has the advantages of being good in sound eliminating effects, simple in structure, convenient to process, reasonable in design and easy to manufacture.
Description
Technical field
The utility model belongs to compressor accessory field, specifically, relates to a kind of baffler be used to preventing or suppress noise, more particularly, relates to a kind of baffler of dual noise reduction.
Background technique
Chiller plant is because itself being affected by its system, and in the process of compressor normal operation, system can produce a series of noise, mainly comprises: refrigeration agent eruption, the sound that flows, compressor operating sound, system unit (condenser, vaporizer) resonance sound.The noise that produces in order to alleviate chiller plant, prior art adopt transition tube to alleviate the noise that chiller plant produces usually, and capillary tube is inserted in the transition tube.Capillary tube is when the ejector refrigeration agent, and the part that capillary tube is inserted in the transition tube will produce vibration in transition tube, thereby alleviates the noise of chiller plant.So baffler has become the parts of chiller plant indispensability.
The kind of baffler is a lot, but studies carefully its noise elimination mechanism, can be divided into six kinds of main types to them again, i.e. resistive muffler, resistant noise-reducing device, impedance complex formula baffler, microperforated panel baffler, aperture baffler and active baffler.The most frequently used in the air-conditioning is the resistant noise-reducing device, that pipe and chamber by abrupt interface combines, like well an acoustic filter, similar to electrical filter, each cell with pipe is a mesh of wave filter, air quality in the pipe is equivalent to inductance and the resistance on the electricity, is called acoustical mass and acoustic resistance.Volume of air in the cell is equivalent to the electric capacity on the electricity, is called acoustic compliance.Similar with electrical filter, each cell with pipe has the natural frequency of oneself.When the sound wave that includes various frequency contents enters first short tube, only near the sound wave of some frequency first mesh natural frequency could arrive second short tube mouth by mesh, the sound wave of other frequency then can not pass through mesh, can only in cell, come back reflective, therefore, we claim that this sound wave is had the structure of filter function is acoustic filter.Choosing suitable pipe and chamber makes up. and just can filter the noise of some frequency content, thereby reach the purpose of noise elimination.The resistant noise-reducing device is applicable in the elimination, low-frequency noise.
Chinese patent application numbers 201010551904.5 open day on 05 23rd, 2012, discloses the patent document that a name is called a kind of baffler.A kind of baffler of this disclosure of the Invention.It comprises outer tube and inner tube, and described outer tube and inner tube are up-small and down-big conical tube, leaves spacing between outer tube and inner tube and the tapering of the two equates.There is central diaphragm the inboard on outer tube top, and central diaphragm and outer tube leave spacing between the upper end, link to each other with outer tube wall around the central diaphragm, and the central diaphragm center is porose, and the diameter in this hole equates with the inner tube upper end diameter and the inner tube upper end links to each other all around with hole on the central diaphragm.Be characterized in that up-small and down-big short Taper Pipe is arranged in the inner tube, the tapering of this short Taper Pipe is greater than the tapering of inner tube, and its lower end circumferentially links to each other with the inwall of inner tube.This baffler, good muffling effect.Be applicable to reduce the noise that the relief openings such as air compressor import/exhaust mouth, air vent of automobile engine and factory's relief opening produce.But this baffler exists complex structure, complex production process, processing difficulties, the shortcoming that cost of production is high.
Chinese patent application numbers 201110174231.0, open day on 01 18th, 2012, the patent document that a kind of name is called screw type silencer is disclosed, this invention provides a kind of screw type silencer, is used for various motors, comprises silencing cavity, suction tude, outlet pipe; Described suction tude stretches in the described silencing cavity from the external world, and described suction tude is divided into volute in described silencing cavity inside, is covered with inlet hole on the described volute tube wall, and is lined with silencing cotton on the described volute inner tubal wall; Described silencing cavity internal surface is covered with silencing cotton; Described outlet pipe stretches in the described silencing cavity from the external world, and described outlet pipe stretches into the plug at end part in the described silencing cavity, and described outlet pipe stretches on the tube wall in the described silencing cavity and is covered with exhaust port.Although this kind baffler has comparatively simple chamber structure, it still exists erasure effect undesirable, the shortcoming of processing difficulties.
Summary of the invention
The problem that solves
, complex structure undesirable for existing silencing apparatus erasure effect, the problem that processing cost is high, the utility model provides a kind of baffler of dual noise reduction, has simple in structure, good muffling effect, the advantage that processing cost is low.
Technological scheme
For addressing the above problem, the utility model adopts following technological scheme.
A kind of baffler of dual noise reduction comprises suction tude, inner tube, expansion tube and steam outlet pipe, and described inner tube is positioned at the inside of expansion tube; Described suction tude and steam outlet pipe are positioned at the outside of expansion tube, also comprise bonnet, and described expansion tube one end is connected with inner tube with suction tude, and the other end is connected with bonnet; Described steam outlet pipe is connected with bonnet; The microdilatancy pipe is arranged on the described inner tube; Described microdilatancy pipe is connected to form by the first inclined-plane, the second plane and the second inclined-plane successively along the cross section of inner tube axis parallel direction.
Further, the angle of described the first inclined-plane and inner tube axis is 60-90 °.
Further, the angle of described the second inclined-plane and inner tube axis is 60-90 °.
Further, described microdilatancy pipe is 2/3 of interior length of tube apart from the distance at inner tube and expanding pipe joint place.
Further, the length of described inner tube equals the 1/3-2/3 of expansion tube length.
Further, on the described inner tube diameter of the position beyond the microdilatancy pipe and expansion tube than being 1:3-5.
Further, there is axial convex tendon the joint of described inner tube and suction tude.
Further, described suction tude and steam outlet pipe are copper product, and inner tube, expansion tube and bonnet are stainless steel material.
Beneficial effect
Than prior art, the beneficial effects of the utility model are:
(1) the utility model comprises suction tude, inner tube, expansion tube and steam outlet pipe, and inner tube is positioned at the inside of expansion tube; Suction tude and steam outlet pipe are positioned at the outside of expansion tube, also comprise bonnet, and expansion tube one end is connected with inner tube with suction tude, and the other end is connected with bonnet; Steam outlet pipe is connected with bonnet; The microdilatancy pipe is arranged on the inner tube; The microdilatancy pipe is connected to form by the first inclined-plane, the second plane and the second inclined-plane successively along the cross section of inner tube axis parallel direction, after sound enters baffler, at first in the microdilatancy pipe, play erasure effect, then in expansion tube, play erasure effect, twice noise reduction, good muffling effect;
(2) angle of the utility model the first inclined-plane and inner tube axis is 60-90 °, and the angle of the second inclined-plane and inner tube axis is 60-90 °; The microdilatancy pipe is 2/3 of interior length of tube apart from the distance at inner tube and expanding pipe joint place; The length of inner tube equals the 1/3-2/3 of expansion tube length; Position on the inner tube beyond the microdilatancy pipe is 1:3-5 with the diameter of expansion tube ratio; Through verification experimental verification, when getting these parameters, the good muffling effect of baffler;
(3) there is axial convex tendon the joint of the utility model inner tube and suction tude, so that inner tube is more prone to good connecting effect with being connected of suction tude, expansion tube;
(4) the utility model suction tude and steam outlet pipe are copper product, and inner tube, expansion tube and bonnet are stainless steel material, and the cost of material is low, simple in structure, reasonable in design, are easy to make.
Description of drawings
Fig. 1 is sectional view of the present utility model.
Among the figure: 1, suction tude; 2, inner tube; 3, expansion tube; 4, steam outlet pipe; 5, bonnet; 201, the first inclined-plane; 202, the second plane; 203, the second inclined-plane.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Embodiment 1
As shown in Figure 1, a kind of baffler of dual noise reduction comprises suction tude 1, inner tube 2, expansion tube 3 and steam outlet pipe 4, also comprises bonnet 5, and inner tube 2 is positioned at the inside of expansion tube 3; The length of inner tube 2 equals the 1/3-2/3 of expansion tube 3 length, and present embodiment preferably selects 1/3, and suction tude 1 and steam outlet pipe 4 are positioned at the outside of expansion tube 3, and expansion tube 3 one ends and suction tude 1 are connected with inner tube and are connected, and the other end is connected with bonnet 5; Inner tube 2 has axial convex tendon with the joint of suction tude 1.Steam outlet pipe 4 is connected with bonnet 5; The microdilatancy pipe is arranged on the inner tube 2; The microdilatancy pipe is 2/3 of inner tube 2 length apart from the distance of inner tube 2 and expansion tube 3 joints.Position on the inner tube 2 beyond the microdilatancy pipe is 1:3-5 with the diameter of expansion tube ratio, and present embodiment is preferably selected 1:3.The microdilatancy pipe is connected to form by the first inclined-plane 201, the second plane 202 and the second inclined-plane 203 successively along the cross section of inner tube 2 axis parallel directions.The first inclined-plane 201 is 60-90 ° with the angle of inner tube 2 axis, and present embodiment is preferably selected 80 °.The second inclined-plane 203 is 60-90 ° with the angle of inner tube 2 axis, and present embodiment is preferably selected 90 °.Suction tude 1 and steam outlet pipe 4 are copper product, and inner tube 2, expansion tube 3 and bonnet 5 are stainless steel material.
With embodiment 1, difference is that the length of inner tube equals 2/3 of expansion tube length; Position on the inner tube beyond the microdilatancy pipe is 1:4 with the diameter of expansion tube ratio; The angle of the first inclined-plane and inner tube axis is 60 °; The angle of the second inclined-plane and inner tube axis is 60 °.
Embodiment 3
With embodiment 1, difference is that the length of inner tube equals 1/2 of expansion tube length; Position on the inner tube beyond the microdilatancy pipe is 1:5 with the diameter of expansion tube ratio; The angle of the first inclined-plane and inner tube axis is 70 °; The angle of the second inclined-plane and inner tube axis is 80 °.
Embodiment 4
With embodiment 1, difference is that the length of inner tube equals 1/2 of expansion tube length; Position on the inner tube beyond the microdilatancy pipe is 1:4 with the diameter of expansion tube ratio; The angle of the first inclined-plane and inner tube axis is 90 °; The angle of the second inclined-plane and inner tube axis is 60 °.
Below schematically the utility model and mode of execution thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of mode of execution of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that does not break away from the utility model creation aim, without the creationary mode of structure similar to this technological scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (8)
1. the baffler of a dual noise reduction comprises suction tude (1), inner tube (2), expansion tube (3) and steam outlet pipe (4), and described inner tube (2) is positioned at the inside of expansion tube (3); Described suction tude (1) and steam outlet pipe (4) are positioned at the outside of expansion tube (3), it is characterized in that: also comprise bonnet (5), described expansion tube (3) one ends are connected 2 with suction tude (1) with inner tube) be connected, the other end is connected with bonnet (5); Described steam outlet pipe (4) is connected with bonnet (5); Described inner tube has the microdilatancy pipe on (2); Described microdilatancy pipe is connected to form by the first inclined-plane (201), the second plane (202) and the second inclined-plane (203) successively along the cross section of inner tube (2) axis parallel direction.
2. the baffler of a kind of dual noise reduction according to claim 1 is characterized in that: described the first inclined-plane (201) is 60-90 ° with the angle of inner tube (2) axis.
3. the baffler of a kind of dual noise reduction according to claim 1 is characterized in that: described the second inclined-plane (203) is 60-90 ° with the angle of inner tube (2) axis.
4. the baffler of a kind of dual noise reduction according to claim 1 is characterized in that: described microdilatancy pipe is 2/3 of inner tube (2) length apart from the distance of inner tube (2) and expansion tube (3) joint.
5. the baffler of a kind of dual noise reduction according to claim 4, it is characterized in that: the length of described inner tube (2) equals the 1/3-2/3 of expansion tube (3) length.
6. the baffler of the described a kind of dual noise reduction of any one according to claim 1-5 is characterized in that: the position beyond the upper microdilatancy pipe of described inner tube (2) and the diameter of expansion tube (3) are than being 1:3-5.
7. the baffler of a kind of dual noise reduction according to claim 6 is characterized in that: described inner tube (2) has axial convex tendon with the joint of suction tude (1).
8. the baffler of a kind of dual noise reduction according to claim 6, it is characterized in that: described suction tude (1) and steam outlet pipe (4) are copper product, and inner tube (2), expansion tube (3) and bonnet (5) are stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220536224 CN202833034U (en) | 2012-10-19 | 2012-10-19 | Silencer with double sound eliminating functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220536224 CN202833034U (en) | 2012-10-19 | 2012-10-19 | Silencer with double sound eliminating functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833034U true CN202833034U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220536224 Expired - Fee Related CN202833034U (en) | 2012-10-19 | 2012-10-19 | Silencer with double sound eliminating functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833034U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696840A (en) * | 2014-01-03 | 2014-04-02 | 清华大学苏州汽车研究院（相城） | Muffler |
| CN105156333A (en) * | 2015-09-25 | 2015-12-16 | 珠海凌达压缩机有限公司 | Covering assembly, compressor and heat exchange device |
| CN106286310A (en) * | 2016-10-31 | 2017-01-04 | 重庆凌达压缩机有限公司 | A kind of temperature equipment, compressor and compressor silencer |
| CN109915343A (en) * | 2019-04-19 | 2019-06-21 | 珠海凌达压缩机有限公司 | Water conservancy diversion muffler and the compressor and air conditioner for using the muffler |
| CN109974364A (en) * | 2017-12-27 | 2019-07-05 | 青岛海尔股份有限公司 | Refrigerator |
-
2012
- 2012-10-19 CN CN 201220536224 patent/CN202833034U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696840A (en) * | 2014-01-03 | 2014-04-02 | 清华大学苏州汽车研究院（相城） | Muffler |
| CN103696840B (en) * | 2014-01-03 | 2016-03-23 | 清华大学苏州汽车研究院（相城） | A kind of silencing apparatus |
| CN105156333A (en) * | 2015-09-25 | 2015-12-16 | 珠海凌达压缩机有限公司 | Covering assembly, compressor and heat exchange device |
| CN106286310A (en) * | 2016-10-31 | 2017-01-04 | 重庆凌达压缩机有限公司 | A kind of temperature equipment, compressor and compressor silencer |
| CN106286310B (en) * | 2016-10-31 | 2019-06-21 | 重庆凌达压缩机有限公司 | A kind of temperature equipment, compressor and compressor silencer |
| CN109974364A (en) * | 2017-12-27 | 2019-07-05 | 青岛海尔股份有限公司 | Refrigerator |
| CN109915343A (en) * | 2019-04-19 | 2019-06-21 | 珠海凌达压缩机有限公司 | Water conservancy diversion muffler and the compressor and air conditioner for using the muffler |
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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: 20130327 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |