CN110425144A - Exhaust pipe capable of effectively reducing noise and compressor - Google Patents
Exhaust pipe capable of effectively reducing noise and compressor Download PDFInfo
- Publication number
- CN110425144A CN110425144A CN201910737460.5A CN201910737460A CN110425144A CN 110425144 A CN110425144 A CN 110425144A CN 201910737460 A CN201910737460 A CN 201910737460A CN 110425144 A CN110425144 A CN 110425144A
- Authority
- CN
- China
- Prior art keywords
- exhaust pipe
- outer sleeve
- compressor
- main part
- exhaust
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 8
- 230000009467 reduction Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses an exhaust pipe and a compressor capable of effectively reducing noise, wherein the exhaust pipe comprises: a main body part having an exhaust passage therein; and the outer sleeve is sleeved outside the main body part and is in sealing connection with the main body part, and a closed space is formed between the outer sleeve and the main body part. The exhaust pipe and the compressor capable of effectively reducing noise effectively solve the problem that in the prior art, the exhaust pipe of the compressor has low noise blocking strength on air flow in the pipe, so that the transmitted noise is high.
Description
Technical field
The present invention relates to Compressor Technology fields, in particular to the exhaust pipe and compressor of a kind of effective noise reduction.
Background technique
In the prior art, the basic functional principle of helical-lobe compressor is the working medium that will be sucked, and engages and presses by screw rotor
After contracting, the process of compressor is discharged.The parts such as the high pressure gaseous working medium high-speed impact exhaust pipe of exhaust phase generate very big
Ground exhaust noise.
In existing a variety of schemes for reducing exhaust noise, wherein the seamless steel pipe conduct for selecting wall thickness thicker as big as possible
Raw material are processed into exhaust pipe, can be relieved the transmitting of portion discharge noise.But by required exhaust bore and national standard without
The specification limitation of tube material is stitched, the wall thickness that can reduce noise is often not achieved in the gauge thickness that exhaust pipe is selected.
In conclusion the exhaust pipe of compressor is small to pipe interior air-flow noise barrier dynamics in the prior art, transmitting is caused to be made an uproar
Sound is big.
Summary of the invention
The exhaust pipe and compressor of a kind of effective noise reduction are provided in the embodiment of the present invention, to solve compressor in the prior art
Exhaust pipe it is small to pipe interior air-flow noise barrier dynamics, cause to transmit the big problem of noise.
To achieve the above object, the present invention provides a kind of exhaust pipes, comprising: main part, main part inside have exhaust
Channel；Outer sleeve, outer sleeve are set in the outside of main part, and outer sleeve and main part are tightly connected, and outer cover
Confined space is formed between pipe and main part.
Further, outer sleeve is seamless steel pipe.
Further, outer sleeve is L in the distance that exhaust tube axis direction extends, and the exhaust passage caliber of exhaust pipe is
D, wherein the ratio of L:D is greater than 2.
Further, outer sleeve is welded on main part.
Further, outer sleeve is welded on main part by steel plate structure.
Further, the outlet side of main part is provided with multiple gas vents.
Further, exhaust pipe is the exhaust pipe of helical-lobe compressor.
According to another aspect of the present invention, a kind of compressor is provided, including above-mentioned exhaust pipe.
Further, compressor is helical-lobe compressor.
Main part and outer sleeve form be with centre confined space the double-deck wall structure, such structure sets
It sets, on the one hand can lengthen exhaust pipe wall surface noise transmission path, reduce the noise finally passed out；On the other hand, formation
This structure of hollow confined space, switches noise transmission between different medium, biggish sound wave transmitting loss is generated, to row
The dissipation role that gas noise transmission is more strengthened finally can effectively reduce and make an uproar from the exhaust that exhaust pipe position passes
Sound.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the exhaust pipe of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the exhaust pipe installation of the embodiment of the present invention on the compressor；
Fig. 3 is the noise transmission schematic illustration of the exhaust pipe of the embodiment of the present invention.
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, but not as to limit of the invention
It is fixed.
In helical-lobe compressor, exhaust pipe structure will use in vent control valve separation phase, the air-flow high temperature and pressure in exhaust pipe
And flow at high speed, biggish pneumatic noise is generated, is passed out by exhaust wall, exhaust pipe in the case that exhaust flow rate is certain
Internal diameter can determine that and often use in selection in exhaust pipe, the wall thickness of seamless steel pipe is also almost definite value, be usually forced to select
Seamless steel pipe material wall thickness only only reaches intensity and uses, but also far from enough for barrier exhaust noise.
For above-mentioned objective technique difficulty and the insurmountable technical problem of the temporary prior art, the present invention changes
Into referring to figure 1 and figure 2, according to an embodiment of the invention, providing a kind of exhaust pipe, exhaust pipe includes 10 He of main part
Outer sleeve 20 has exhaust passage 11 inside main part 10.Outer sleeve 20 is set in the outside of main part 10, outer sleeve
20 are tightly connected with main part 10, and confined space 30 is formed between outer sleeve 20 and main part 10.
Main part 10 and outer sleeve 20 form be with centre confined space 30 the double-deck wall structure, such knot
Structure setting, on the one hand can lengthen exhaust pipe wall surface noise transmission path, reduce the noise finally passed out, noise transmission path
It may refer to arrow direction shown in Fig. 3；On the other hand, this structure of the hollow confined space 30 of formation, makes noise transmission exist
Switch between different medium, generate biggish sound wave transmitting loss, the dissipation role more strengthened is transmitted to exhaust noise,
It finally can effectively reduce the exhaust noise passed from exhaust pipe position.
It is further preferred that outer sleeve 20 is seamless steel pipe.Outer sleeve 20 is welded on main part 10.Outer sleeve
20 are welded on main part 10 by steel plate structure.
After selecting the seamless steel pipe of certain specification to be processed into exhaust pipe, it is bigger that one layer of diameter specifications are covered in exhaust pipe outside diameter
Seamless steel pipe, form the exhaust pipe of one section of double-deck wall surface, then the space of the inside and outside side exhaust pipe both ends of the surface of the double-deck wall surface is used
Steel plate mends structure and fills and weld, and forms the confined space 30 between double wall.Wherein, solder joint A shown in FIG. 1 is that steel plate structure carries out
The bond pad locations of welding.
The outlet side of main part 10 is provided with multiple gas vents 12.The cloth of the setting position and gas vent 12 of outer sleeve 20
Office position is staggered, reference can be made to shown in Fig. 1.In this embodiment, exhaust pipe is the exhaust pipe of helical-lobe compressor.
Referring to Fig. 1, outer sleeve 20 is L in the distance that exhaust tube axis direction extends, and the exhaust passage 11 of exhaust pipe is managed
Diameter is D, wherein the ratio of L:D is greater than 2.In the case where exhaust structure space allows, the structure of exhaust pipe double wall is bigger,
Confined space is bigger, i.e., L and d value shown in figure three is bigger, and final bring noise reduction effect is more obvious.
The present invention also provides a kind of embodiments of compressor, and referring to fig. 2, compressor includes the exhaust of above-described embodiment
Pipe.Compressor is helical-lobe compressor.
Twin exhaust pipes structure or multiple rows of air pipe structure can be used in compressor, for two exhausts in twin exhaust pipes structure
Pipe is all made of the exhaust pipe of above-described embodiment, increases noise transmission path in this way and noise dissipates, noise reduction effect is particularly evident.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
It certainly, is the preferred embodiment of the present invention above.It should be pointed out that for those skilled in the art
For, without departing from the basic principles of the invention, several improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of exhaust pipe characterized by comprising
Main part (10), the main part (10) is internal to have exhaust passage (11)；
Outer sleeve (20), the outer sleeve (20) are set in the outside of the main part (10), the outer sleeve (20)
It is tightly connected with the main part (10), and forms confined space between the outer sleeve (20) and the main part (10)
(30)。
2. exhaust pipe according to claim 1, which is characterized in that the outer sleeve (20) is seamless steel pipe.
3. exhaust pipe according to claim 1, which is characterized in that the outer sleeve (20) is in the exhaust pipe axis side
It is L to the distance of extension, exhaust passage (11) caliber of the exhaust pipe is D, wherein the ratio of L:D is greater than 2.
4. exhaust pipe according to claim 1, which is characterized in that the outer sleeve (20) is welded on the main part
(10) on.
5. exhaust pipe according to claim 4, which is characterized in that the outer sleeve (20) is welded on by steel plate structure
On the main part (10).
6. exhaust pipe according to claim 1, which is characterized in that the outlet side of the main part (10) is provided with multiple rows
Stomata (12).
7. exhaust pipe according to claim 1, which is characterized in that the exhaust pipe is the exhaust pipe of helical-lobe compressor.
8. a kind of compressor, which is characterized in that including exhaust pipe of any of claims 1-6.
9. compressor according to claim 8, which is characterized in that the compressor is helical-lobe compressor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737460.5A CN110425144A (en) | 2019-08-09 | 2019-08-09 | Exhaust pipe capable of effectively reducing noise and compressor |
| PCT/CN2020/099004 WO2021027414A1 (en) | 2019-08-09 | 2020-06-29 | Compressor exhaust pipe and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737460.5A CN110425144A (en) | 2019-08-09 | 2019-08-09 | Exhaust pipe capable of effectively reducing noise and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110425144A true CN110425144A (en) | 2019-11-08 |
Family
ID=68414022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910737460.5A Pending CN110425144A (en) | 2019-08-09 | 2019-08-09 | Exhaust pipe capable of effectively reducing noise and compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110425144A (en) |
| WO (1) | WO2021027414A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021027414A1 (en) * | 2019-08-09 | 2021-02-18 | 珠海格力电器股份有限公司 | Compressor exhaust pipe and compressor |
| CN112412804A (en) * | 2020-10-13 | 2021-02-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Compound air suction port and air exhaust port silencing assembly and compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205779181U (en) * | 2016-07-20 | 2016-12-07 | 成都济柴动力设备有限公司 | Exhaust noise reduction device for exhaust pipe of diesel engine |
| CN109973391A (en) * | 2019-05-05 | 2019-07-05 | 烟台菱辰能源有限公司 | A kind of denoising device of Roots's air compressor machine for fuel cell |
| CN210423042U (en) * | 2019-08-09 | 2020-04-28 | 珠海格力电器股份有限公司 | Exhaust pipe capable of effectively reducing noise and compressor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130865A (en) * | 1998-10-23 | 2000-05-12 | Hitachi Ltd | Refrigerant compressor and air conditioner employing it |
| CN104895849A (en) * | 2014-03-07 | 2015-09-09 | 珠海格力电器股份有限公司 | Refrigeration equipment and compressor thereof |
| CN106286211A (en) * | 2015-05-13 | 2017-01-04 | 中南大学 | H type small refrigeration systems acoustic filter |
| CN206860455U (en) * | 2017-05-27 | 2018-01-09 | 西安庆安制冷设备股份有限公司 | A kind of blast pipe of helical structure and the rotary compressor with the blast pipe |
| CN108980049B (en) * | 2018-09-17 | 2023-09-26 | 西安交通大学 | Air flow pulsation attenuation device of screw compressor |
| CN110425144A (en) * | 2019-08-09 | 2019-11-08 | 珠海格力电器股份有限公司 | Exhaust pipe capable of effectively reducing noise and compressor |
-
2019
- 2019-08-09 CN CN201910737460.5A patent/CN110425144A/en active Pending
-
2020
- 2020-06-29 WO PCT/CN2020/099004 patent/WO2021027414A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205779181U (en) * | 2016-07-20 | 2016-12-07 | 成都济柴动力设备有限公司 | Exhaust noise reduction device for exhaust pipe of diesel engine |
| CN109973391A (en) * | 2019-05-05 | 2019-07-05 | 烟台菱辰能源有限公司 | A kind of denoising device of Roots's air compressor machine for fuel cell |
| CN210423042U (en) * | 2019-08-09 | 2020-04-28 | 珠海格力电器股份有限公司 | Exhaust pipe capable of effectively reducing noise and compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021027414A1 (en) * | 2019-08-09 | 2021-02-18 | 珠海格力电器股份有限公司 | Compressor exhaust pipe and compressor |
| CN112412804A (en) * | 2020-10-13 | 2021-02-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Compound air suction port and air exhaust port silencing assembly and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021027414A1 (en) | 2021-02-18 |
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| SE01 | Entry into force of request for substantive examination |