CN1854621B - Device and method for decreasing noise of indoor unit of air conditioner - Google Patents
Device and method for decreasing noise of indoor unit of air conditioner Download PDFInfo
- Publication number
- CN1854621B CN1854621B CN200510066140A CN200510066140A CN1854621B CN 1854621 B CN1854621 B CN 1854621B CN 200510066140 A CN200510066140 A CN 200510066140A CN 200510066140 A CN200510066140 A CN 200510066140A CN 1854621 B CN1854621 B CN 1854621B
- Authority
- CN
- China
- Prior art keywords
- noise
- producing medium
- cold
- caliber
- refrigerant
- 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.)
- Active
Links
Landscapes
- Details Of Valves (AREA)
Abstract
In the invention, a U-shape pipe diameter of the refrigerant pipeline for the room unit is thickened, so that the impact noise and the structure vibration noise caused by the refrigerant that is passing through the refrigerant pipeline are reduced. The gas-phase and liquid phase refrigerant can be fully mixed in the thickened U-shape pipe and then enter into an evaporator, so as to improve the radiating effect of the evaporator.
Description
Technical field
The present invention relates to a kind of device and method that reduces the air conditioner room unit noise, the especially a kind of indoor apparatus of air conditioner denoising device and method that can reduce the cold-producing medium noise that flow at high speed produces in pipeline.
Background technology
Along with growth in the living standard, people are more and more higher to environment requirement, and air-conditioning has also been had more requirement, as meet the air of hygienic requirements, and suitable temperature, humidity, sound all are the necessary conditions that makes people satisfied.Irksome noise or the sound that does not meet the acoustics requirement can influence the result of use of air-conditioning system.How to control the noise of air-conditioning system well, providing a quiet comfortable environment to people is very worth research.Vibration when taking appropriate technical measures with the noise of subduing air-conditioned room and equipment operation in the design of air-conditioning system has crucial realistic meaning.
The sound system of the complexity that the noise of wall-hanging air conditioner is made up of multiple sound source, its noise source main composition is as follows: the aerodynamic noise of cross flow fan; Mainly comprise rotational noise and eddy current crack; Structural vibration noise mainly is because the structural vibration noise of motor oscillating, fan rotation generation; Because the cold-producing medium gas noise that flow at high speed produces in pipeline, and cold-producing medium is at the turbulence noise of the shunting and the meet generation of channel bend place, import and export.
Noise reduction measure to air-conditioner mainly is that air force noise and the motor oscillating noise aspect that concentrates on blower fan rotation generation considered at present, along with people's improving constantly to the household air-conditioner requirement, reduce the cold-producing medium noise that flow at high speed produces in pipeline, also become the key factor of air-conditioner design gradually.And, in refrigeration system, be to be mutually related between each equipment, the performance of refrigerant tubing has very big influence to the work of evaporimeter, condenser, compressor even fan system, and then can have influence on the performance of whole refrigeration system.Therefore, be necessary from the reduction cold-producing medium gas noise that flow at high speed produces in pipeline, and the cold-producing medium noise angle consideration that impact produces to duct wall, such as, cold-producing medium impacts the noise that produces to pipeline when reducing the magnetic valve unlatching, improves the overall performance of air-conditioner.
Summary of the invention
The objective of the invention is to improve the structure of refrigerant tubing, reduce cold-producing medium flow at high speed in pipeline pipeline is impacted the noise that produces, and and then improve the overall performance of air-conditioner.
Generally, the cold-producing medium that comes out from magnetic valve is introduced into a U-shaped pipe, enter evaporimeter by knockout again, when magnetic valve was opened, a large amount of refrigerant liquid were gushed out suddenly, and liquid impacts the tube wall and the elbow of U-shaped pipe fast, produce very big impact noise, because the impact of refrigerant also can cause the vibration of indoor set pipeline and other parts, produce vibration noise.
The caliber of existing U-shaped pipe refrigerant pipe caliber general and behind the magnetic valve is identical.In order to reduce noise, the present invention is with the caliber overstriking of above-mentioned U-shaped pipe, and is bigger one to two times than existing U type pipe 1 caliber.Like this, when opening magnetic valve, because the caliber overstriking, the space increases in the pipe, and the flow velocity of the refrigerant liquid of inflow reduces, and to the little minimizing of impulsive force of tube wall, thereby has reduced noise.
The present invention is with the caliber overstriking of above-mentioned U-shaped pipe, also can improve the heat exchange effect of evaporimeter, improve the performance of refrigeration system. in the refrigeration system, evaporimeter generally adopts the form of multichannel coil pipe parallel connection. and the cold-producing medium after the throttling is shunted through knockout, mean allocation is in each road coil pipe, to reach best heat exchange effect, keep best cold-producing medium flow velocity, and pressure fallen be limited in certain scope. because the cold-producing medium that comes out from throttling arrangement is a biphase gas and liquid flow, be generally the flow pattern of bubble stream or bulk stream, because the proportion difference of gas-liquid, in pipeline gaseous refrigerant above the pipeline and liquid refrigerant below pipeline, cause the knockout separatory inhomogeneous, the amount of liquid that enters in each road coil pipe of evaporimeter is unbalanced, can produce the different degrees of superheat in outlet. the coil pipe inner refrigerant of liquid supply rate deficiency flashes to gas very soon, very long one section gas converting heat is arranged before outlet, heat exchange area is not effectively utilized, produced the bigger degree of superheat. and in the too much coil pipe of liquid supply rate, has only the very little degree of superheat during outlet, even having unevaporated liquid. the cold-producing medium of these pipelines outlets converges to a time-out through collector, total effect is because heat exchange area does not make full use of, the outlet degree of superheat is too small or have liquid, after the temperature sensor of expansion valve is experienced this signal, corresponding action is to close minor valve, reduce liquid supply rate. and after flow reduces, the knockout separatory is more inhomogeneous, vicious circle like this, the effective heat exchange area of evaporimeter sharply reduces, refrigerating capacity descends, expansion valve and compressor efficiency reduce, so whole refrigeration system runnability severe exacerbation. be before cold-producing medium enters evaporimeter, the gas-liquid two-phase cold-producing medium is fully mixed as far as possible, be assigned to equally again in each road coil pipe and go. but it is inhomogeneous and to enter every road coil pipe refrigerant flow inhomogeneous usually to occur gas-liquid mixed in actual motion, both of these case has all caused the difference of each road coil pipe liquid supply rate, influence the heat exchange property of evaporimeter, and then had influence on the service behaviour of whole refrigeration system.
The present invention is with the caliber overstriking of U-shaped pipe, in the U-shaped pipe after the gas-liquid cold-producing medium of gushing out from magnetic valve enters overstriking, because the space increases, cold-producing medium has at a high speed produced eddy current after this mixes, thereby the gas-liquid two-phase cold-producing medium can fully be mixed at this, after the knockout shunting, flow into each road evaporation coil equably, thereby improved the heat exchange effect of evaporimeter, improved the efficient of refrigeration system.
In addition, the aerodynamic noise during fan running also is a main noise source, and the noise of fan is relevant with rotating speed.Air quantity and noise are conflicting.If refrigerating capacity can be guaranteed, then can suitably reduce the rotating speed of fan electromotor.The present invention has improved the efficient of refrigeration system owing to improved the radiating effect of evaporimeter, thereby can reduce air quantity under the prerequisite that guarantees refrigerating capacity, promptly reduces rotation speed of the fan, thereby reduces the aerodynamic noise of cross flow fan.
The invention has the beneficial effects as follows: owing to strengthened the caliber of U type pipe, reduced impact noise that refrigerant causes refrigerant pipe when magnetic valve is gushed out and the structural vibration noise that causes; Enter evaporimeter after the gas-liquid two-phase cold-producing medium can fully be mixed in the U of overstriking type pipe, thereby improve the radiating effect of evaporimeter, improved the efficient of refrigeration system; Owing to improved the efficient of refrigeration system, thereby can under the prerequisite that guarantees refrigerating capacity, reduce rotation speed of the fan, thereby reduced the aerodynamic noise of cross flow fan.In a word, the present invention has reduced the noise of indoor apparatus of air conditioner, has improved the heat exchanger effectiveness of evaporimeter, and the overall performance of air-conditioner is improved.
Description of drawings
Fig. 1 is existing indoor set refrigerant tubing partial structurtes schematic diagram
Fig. 2 is a refrigerant tubing partial structurtes schematic diagram of the present invention
Specific embodiment
Generally, the cold-producing medium that comes out from magnetic valve is introduced into a U-shaped pipe 1 ', enters evaporimeter 3 by knockout 2 again.The arrow indication is the refrigerant flow direction among the figure.The cold-producing medium caliber of the caliber of existing U-shaped pipe 1 ' after with magnetic valve is equally thick.When magnetic valve was opened, a large amount of refrigerant liquid were gushed out suddenly, and liquid impacts the tube wall and the elbow of U-shaped pipe 1 ' fast, produces very big impact noise, because the impact of refrigerant also can cause the vibration of indoor set pipeline and other parts, produced vibration noise.
The present invention is with the caliber overstriking of above-mentioned U-shaped pipe 1 ', bigger one to two times than existing U type pipe 1 ' caliber. like this, when opening magnetic valve, because caliber overstriking, the space increases in the pipe, the flow velocity that flows into the refrigerant liquid of U-shaped pipe 1 after this overstriking reduces, and the impulsive force of U-shaped pipe 1 tube wall is reduced, thereby reduced noise.
In the U-shaped pipe 1 after the gas-liquid cold-producing medium of gushing out from magnetic valve enters overstriking, because the space increases, cold-producing medium has at a high speed produced eddy current after this mixes, thereby the gas-liquid two-phase cold-producing medium can fully be mixed at this, behind knockout 2 separatory, flow into each road evaporation coil equably, thereby improved the heat exchange effect of evaporimeter 3, improved the efficient of refrigeration system.
The indoor set noise increases with the increase of fan rotating speed.The present invention has improved the efficient of refrigeration system owing to improved the radiating effect of evaporimeter, thereby can reduce air quantity under the prerequisite that guarantees refrigerating capacity, promptly reduces rotation speed of the fan, thereby reduces the aerodynamic noise of cross flow fan.
Claims (4)
1. device that reduces the air conditioner room unit noise, described indoor set refrigerant tubing is provided with a U type pipe, cold-producing medium enters evaporimeter by magnetic valve, refrigerant pipe, U type pipe successively, it is characterized in that: the cold-producing medium caliber of the caliber of this U-shaped pipe after greater than magnetic valve.
2. the device of reduction air conditioner room unit noise according to claim 1 is characterized in that: the caliber of described U type pipe is bigger one to two times than described cold-producing medium caliber.
3. method that reduces the air conditioner room unit noise, described indoor set refrigerant tubing is provided with a U type pipe, and cold-producing medium enters evaporimeter by this U type pipe, it is characterized in that: the caliber of described U-shaped pipe is strengthened, make it bigger than described cold-producing medium caliber.
4. the method for reduction air conditioner room unit noise according to claim 3 is characterized in that: be enlarged to the caliber of described U type pipe bigger one to two times than described cold-producing medium caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510066140A CN1854621B (en) | 2005-04-21 | 2005-04-21 | Device and method for decreasing noise of indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510066140A CN1854621B (en) | 2005-04-21 | 2005-04-21 | Device and method for decreasing noise of indoor unit of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1854621A CN1854621A (en) | 2006-11-01 |
| CN1854621B true CN1854621B (en) | 2010-05-05 |
Family
ID=37194959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510066140A Active CN1854621B (en) | 2005-04-21 | 2005-04-21 | Device and method for decreasing noise of indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1854621B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749892B (en) * | 2008-06-27 | 2011-07-13 | 艾泰斯热系统研发（上海）有限公司 | Evaporator |
| CN105823368B (en) * | 2016-05-12 | 2017-10-31 | 哈尔滨工程大学 | A kind of condenser end cover structure with noise elimination function |
| CN107126614A (en) * | 2017-05-03 | 2017-09-05 | 辽宁沃德玛克工业设备制造有限公司 | A kind of highland oxygen-feeding device |
| CN110285565A (en) * | 2019-06-26 | 2019-09-27 | 珠海格力电器股份有限公司 | Noise reduction equipment, air conditioning unit and control method of air conditioning unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010058433A (en) * | 1999-12-27 | 2001-07-06 | 황한규 | Airconditioner with dual evaporator ASS'Y |
| JP2003050064A (en) * | 2001-08-03 | 2003-02-21 | Mitsubishi Heavy Ind Ltd | Turbo freezer |
| JP2003121029A (en) * | 2001-10-12 | 2003-04-23 | Mitsubishi Heavy Ind Ltd | Refrigerant distributor and air conditioner with refrigerant distributor |
-
2005
- 2005-04-21 CN CN200510066140A patent/CN1854621B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010058433A (en) * | 1999-12-27 | 2001-07-06 | 황한규 | Airconditioner with dual evaporator ASS'Y |
| JP2003050064A (en) * | 2001-08-03 | 2003-02-21 | Mitsubishi Heavy Ind Ltd | Turbo freezer |
| JP2003121029A (en) * | 2001-10-12 | 2003-04-23 | Mitsubishi Heavy Ind Ltd | Refrigerant distributor and air conditioner with refrigerant distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1854621A (en) | 2006-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2009339555B2 (en) | Indoor unit for air conditioner, and air conditioner | |
| CN108027151B (en) | Portable air conditioner | |
| CN101520210B (en) | Indoor built-in type heat source unit | |
| JP2005226987A (en) | Piping structure for outdoor unit of air conditioner | |
| JP2008196811A (en) | Air conditioner | |
| CN203375573U (en) | Device for improving degree of supercooling of refrigerant of multi-split air conditioners and multi-split air conditioners with same | |
| CN102635897A (en) | Air conditioner | |
| CN101631991A (en) | Vibration reducing structure of air conditioner | |
| CN1854621B (en) | Device and method for decreasing noise of indoor unit of air conditioner | |
| CN209165598U (en) | A kind of air-conditioner outdoor unit and central air-conditioning | |
| CN107655103B (en) | Air conditioner outdoor unit, air conditioner and control method of air conditioner | |
| CN202734368U (en) | Throttling system and air conditioner using same | |
| CN101949560A (en) | Fanless super-silent split air conditioner | |
| CN201811377U (en) | Two-cold-source integrated air-conditioning system | |
| CN101592423A (en) | A kind of flow path structure of air conditioning outdoor machine | |
| CN112856588B (en) | Air conditioner indoor unit and air conditioner | |
| CN2446428Y (en) | Air conditioner | |
| CN203385250U (en) | Air-cooling pipeline type air conditioning unit provided with throttling port in distributing head | |
| CN210980125U (en) | Outdoor unit of air conditioner | |
| CN201652615U (en) | Energy-saving and mute air-conditioner | |
| CN102042644B (en) | Split-type air conditioner outdoor unit with double rising inhalation pipe | |
| CN202581588U (en) | Air conditioner | |
| CN201819316U (en) | A fanless ultra-quiet split air conditioner | |
| CN201262446Y (en) | Novel air conditioner with high performance-price ratio | |
| CN2336248Y (en) | Externally hung room air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |