CN103423525B - Reducing pipe, there is the refrigeration system of this reducing pipe and there is the refrigerator of this refrigeration system - Google Patents
Reducing pipe, there is the refrigeration system of this reducing pipe and there is the refrigerator of this refrigeration system Download PDFInfo
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- CN103423525B CN103423525B CN201310382169.3A CN201310382169A CN103423525B CN 103423525 B CN103423525 B CN 103423525B CN 201310382169 A CN201310382169 A CN 201310382169A CN 103423525 B CN103423525 B CN 103423525B
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Abstract
The invention discloses a kind of reducing pipe, have the refrigeration system of this reducing pipe and there is the refrigerator of this refrigeration system.Described reducing pipe comprises: the multiple pipeline sections be communicated with successively, wherein, the caliber of the entrance point of each described pipeline section is less than the caliber of its outlet end, and the caliber being positioned at the entrance point of the described pipeline section in downstream side is more than or equal to the caliber of the outlet end of the described pipeline section of its adjacent upstream side.According to embodiment of the present invention reducing pipe, acoustic impedance mismatch is produced by the repeatedly expansion of the pipeline section of reducing pipe, the phenomenons such as the interface that the sound wave of some frequency is suddenlyd change in acoustic impedance is reflected, interference, sound wave is cancelled out each other, thus reaches the object reducing pneumatic noise and Oscillation Amplitude.
Description
Technical field
The present invention relates to the field of refrigeration of refrigerator, especially relate to a kind of reducing pipe, have the refrigeration system of this reducing pipe and there is the refrigerator of this refrigeration system.
Background technique
In the refrigeration system of refrigerator, because capillary outlet place flow velocity is too high, easily produce larger airflow noise at system for content, be usually connected with reducing pipe in the outlet port of capillary tube, to reach the effect reducing airflow noise.But the reducing pipe of a currently used reducing does not solve in refrigeration system the problem produced compared with air flow sound very well.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the present invention needs to provide a kind of problem that can solve the capillary outlet place larger noise of generation and Oscillation Amplitude in the refrigeration system of refrigerator.
The present invention also needs to provide a kind of refrigeration system with above-mentioned reducing pipe.
The present invention also needs to provide a kind of refrigerator with above-mentioned refrigeration system.
Reducing pipe according to the embodiment of the present invention comprises: the multiple pipeline sections be communicated with successively, wherein, the caliber of the entrance point of each described pipeline section is less than the caliber of its outlet end, and the caliber being positioned at the entrance point of the described pipeline section in downstream side is more than or equal to the caliber of the outlet end of the described pipeline section of its adjacent upstream side.
According to the reducing pipe of the embodiment of the present invention, acoustic impedance mismatch is produced by the repeatedly expansion of the pipeline section of reducing pipe, the phenomenons such as the interface that the sound wave of some frequency is suddenlyd change in acoustic impedance is reflected, interference, sound wave is cancelled out each other, thus reaches the object reducing pneumatic noise and Oscillation Amplitude.
In addition, reducing pipe according to an embodiment of the invention, also can have following additional technical feature:
According to one embodiment of present invention, described multiple pipeline section is four pipeline sections.Thus, effectively the reduction pneumatic noise of reducing pipe and the object of Oscillation Amplitude is improved.
According to one embodiment of present invention, each pipeline section is round platform pipeline section.The flow velocity of the gas-liquid mixture of refrigeration agent can evenly reduce in round platform pipeline section, effectively can improve the reduction pneumatic noise of reducing pipe and the object of Oscillation Amplitude thus.
According to one embodiment of present invention, described reducing pipe is copper pipe.Copper has good ductility, is easy to the manufacturing of reducing pipe, and copper has good thermal conductivity, is convenient to lower the temperature to refrigeration agent further.
According to one embodiment of present invention, described reducing pipe is formed by copper pipe stretching integral.Thus, improve the join strength between each pipeline section of reducing pipe, and improve the manufacturing efficiency of reducing pipe.
The refrigeration system of embodiment comprises according to a further aspect of the invention: vaporizer, capillary tube and above-mentioned reducing pipe, and the upstream extremity of described reducing pipe is connected with described capillary tube, and the downstream of described reducing pipe is connected with described vaporizer.By arranging reducing pipe, airflow noise and Oscillation Amplitude in refrigeration system effectively can be reduced.Therefore, there is according to the refrigeration system of the embodiment of the present invention advantage of low noise.
The refrigerator of embodiment according to a further aspect of the invention, described refrigerator contains above-mentioned refrigeration system.Because above-mentioned refrigeration system has the advantage of low noise, therefore, also there is according to the refrigerator of the embodiment of the present invention advantage of low noise.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of reducing pipe according to an embodiment of the invention;
Fig. 2 is the structural representation of reducing pipe in accordance with another embodiment of the present invention.
Reference character:
Reducing pipe 1;
First pipeline section 11; The entrance point 111 of the first pipeline section; The outlet end 112 of the first pipeline section;
Second pipeline section 12; The entrance point 121 of the second pipeline section; The outlet end 122 of the second pipeline section;
3rd pipeline section 13; The entrance point 131 of the 3rd pipeline section; The outlet end 132 of the 3rd pipeline section;
4th pipeline section 14; The entrance point 141 of the 4th pipeline section; The outlet end 142 of the 4th pipeline section;
The entrance point 15 of reducing pipe;
The outlet end 16 of reducing pipe.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " on ", the orientation of the instruction such as D score or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 1 and Fig. 2, the reducing pipe 1 of embodiment is according to a first aspect of the present invention described.
As depicted in figs. 1 and 2, a kind of reducing pipe 1 comprises: the multiple pipeline sections be communicated with successively.Wherein, the caliber of the entrance point of each pipeline section is less than the caliber of its outlet end, and the caliber being positioned at the entrance point of the pipeline section in downstream side is more than or equal to the caliber of the outlet end of the pipeline section of its adjacent upstream side.In other words, reducing pipe 1 can comprise plural pipeline section, the caliber of each pipeline section increases from upstream side gradually to direction, downstream side, and in two adjacent pipeline sections, the cross-section area of the pipeline section of upstream relative side is greater than the cross-section area of the pipeline section of opposing downstream side.
Wherein, upstream side and downstream side are the flow directions of the refrigeration agent in relative reducing pipe 1, upstream and downstream direction as depicted in figs. 1 and 2, upstream side refers to relatively near the side of the entrance point 15 of reducing pipe 1, downstream side refers to the relative entrance point 15 away from reducing pipe 1, near the side of the outlet end 16 of reducing pipe 1.Cross section refers to the plane parallel with the radial direction of each pipeline.
Fig. 1 is the embodiment that the caliber of the entrance point of the pipeline section being positioned at downstream side equals the caliber of the outlet end of the pipeline section of its adjacent upstream side.As shown in fig. 1, the caliber of the entrance point 111 of the first pipeline section 11 is less than the caliber of its outlet end 112, the caliber of the entrance point 121 of the second pipeline section 12 is less than the caliber of its outlet end 122, the caliber of the entrance point 131 of the 3rd pipeline section 13 is less than the caliber of its outlet end 132, and the caliber of the entrance point 141 of the 4th pipeline section 14 is less than the caliber of its outlet end 142.The caliber of the entrance point 121 of the second pipeline section 12 equals the caliber of the outlet end 112 of the first pipeline section 11, the caliber of the entrance point 131 of the 3rd pipeline section 13 equals the caliber of the outlet end 122 of the second pipeline section 12, and the caliber of the entrance point 141 of the 4th pipeline section 14 equals the caliber of the outlet end 132 of the 3rd pipeline section 13.
Fig. 2 is another embodiment that the caliber of the entrance point of the pipeline section being positioned at downstream side is greater than the caliber of the outlet end of the pipeline section of its adjacent upstream side.As shown in Figure 2, the caliber of the entrance point 111 of the first pipeline section 11 is less than the caliber of its outlet end 112, the caliber of the entrance point 121 of the second pipeline section 12 is less than the caliber of its outlet end 122, the caliber of the entrance point 131 of the 3rd pipeline section 13 is less than the caliber of its outlet end 132, and the caliber of the entrance point 141 of the 4th pipeline section 14 is less than the caliber of its outlet end 142.The caliber of the entrance point 121 of the second pipeline section 12 is greater than the caliber of the outlet end 112 of the first pipeline section 11, the caliber of the entrance point 131 of the 3rd pipeline section 13 is greater than the caliber of the outlet end 122 of the second pipeline section 12, and the caliber of the entrance point 141 of the 4th pipeline section 14 is greater than the caliber of the outlet end 132 of the 3rd pipeline section 13.
Wherein, the entrance point 111 of the entrance point 15 of reducing pipe namely the first pipeline section 11, the outlet end 142 of the outlet end 16 of reducing pipe namely the 4th pipeline section 14.
Those skilled in the art are known, the refrigerant vapour of High Temperature High Pressure is after in condenser, major part is liquefied as liquid, refrigerant liquid and a small amount of refrigerant gas will flow to the very little capillary tube of caliber, flow velocity in capillary tube will be very high, just easily causes producing larger airflow noise in the outlet port of capillary tube.
Be understandable that, along with the increase of caliber, due to the reduction of pressure, the flow velocity of the gas-liquid mixture of refrigeration agent also decreases.Therefore, by connecting the reducing pipe 1 with multiple pipeline section in the outlet port of capillary tube, the gas-liquid mixture of refrigeration agent is by the increase gradually of the caliber along with reducing pipe 1, and flow velocity diminishes gradually.According to Principles of Acoustics, the airflow noise that air-flow produces is also along with reduction.There is repeatedly gradual change in the caliber of the multiple pipeline sections be communicated with successively, gradual change repeatedly also occurs step by step step by step for the flow velocity of air-flow, finally reaches the object reducing pneumatic noise.
In brief, according to the reducing pipe 1 of the embodiment of the present invention, acoustic impedance mismatch is produced by the repeatedly expansion of the pipeline section of reducing pipe 1, the phenomenons such as the interface that the sound wave of some frequency is suddenlyd change in acoustic impedance is reflected, interference, sound wave is cancelled out each other, thus reaches the object reducing pneumatic noise and Oscillation Amplitude.
In preferred embodiment of the present invention, multiple pipeline section can be four pipeline sections.The first pipeline section 11, second pipeline section 12, the 3rd pipeline section 13 and the 4th pipeline section 14 is followed successively by from upstream to downstream.The discovery that inventor is surprised, when multiple pipeline section is four, has best eradicating efficacy to airflow noise.
Further, each pipeline section can be round platform pipeline section, and wherein each pipeline section is coaxially arranged.The flow velocity of the gas-liquid mixture of refrigeration agent can evenly reduce in round platform pipeline section, effectively can improve the reduction noise of reducing pipe 1 and the object of Oscillation Amplitude thus.
Alternatively, reducing pipe 1 can copper pipe.Copper has good ductility, is easy to the manufacturing of reducing pipe 1, and copper has good thermal conductivity, is convenient to lower the temperature to refrigeration agent further.
Further, reducing pipe 1 is formed by copper pipe stretching integral.Thus, improve the join strength between each pipeline section of reducing pipe 1, and improve the manufacturing efficiency of reducing pipe 1.
The refrigeration system of embodiment according to a further aspect of the invention comprises: vaporizer (not shown), capillary tube (not shown), and above-mentioned reducing pipe 1.Wherein, the upstream extremity of reducing pipe 1 is connected with capillary tube, and the downstream of reducing pipe 1 is connected with vaporizer.By arranging reducing pipe 1, airflow noise and Oscillation Amplitude in refrigeration system effectively can be reduced.Therefore, there is according to the refrigeration system of the embodiment of the present invention advantage of low noise.
The refrigerator of embodiment according to a further aspect of the invention contains above-mentioned refrigeration system.Because above-mentioned refrigeration system has the advantage of low noise, therefore, also there is according to the refrigerator of the embodiment of the present invention advantage of low noise.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a refrigeration system, is characterized in that, comprising: vaporizer, capillary tube, and reducing pipe,
Described reducing pipe comprises: the multiple pipeline sections be communicated with successively, wherein, the caliber of the entrance point of each described pipeline section is less than the caliber of its outlet end, and the caliber being positioned at the entrance point of the described pipeline section in downstream side is more than or equal to the caliber of the outlet end of the described pipeline section of its adjacent upstream side;
The upstream extremity of described reducing pipe is connected with described capillary tube, and the downstream of described reducing pipe is connected with described vaporizer.
2. refrigeration system according to claim 1, is characterized in that, described multiple pipeline section is four pipeline sections.
3. refrigeration system according to claim 1, is characterized in that, described each pipeline section is round table-like pipeline section.
4. refrigeration system according to claim 1, is characterized in that, described reducing pipe is copper pipe.
5. refrigeration system according to claim 4, is characterized in that, described reducing pipe is formed by copper pipe stretching integral.
6. a refrigerator, is characterized in that, described refrigerator contains the refrigeration system according to any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310382169.3A CN103423525B (en) | 2013-08-28 | 2013-08-28 | Reducing pipe, there is the refrigeration system of this reducing pipe and there is the refrigerator of this refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310382169.3A CN103423525B (en) | 2013-08-28 | 2013-08-28 | Reducing pipe, there is the refrigeration system of this reducing pipe and there is the refrigerator of this refrigeration system |
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| Publication Number | Publication Date |
|---|---|
| CN103423525A CN103423525A (en) | 2013-12-04 |
| CN103423525B true CN103423525B (en) | 2016-04-27 |
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| CN201310382169.3A Active CN103423525B (en) | 2013-08-28 | 2013-08-28 | Reducing pipe, there is the refrigeration system of this reducing pipe and there is the refrigerator of this refrigeration system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191696A (en) * | 2017-06-19 | 2017-09-22 | 合肥太通制冷科技有限公司 | A kind of level Four reducing pipe |
| CN112304123A (en) * | 2019-08-01 | 2021-02-02 | 杭州三花研究院有限公司 | End cover, collecting pipe and heat exchanger |
| CN112498607B (en) * | 2020-11-18 | 2022-06-21 | 哈尔滨工程大学 | Simple low-noise flow vibration noise test device |
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| CN1464253A (en) * | 2002-06-06 | 2003-12-31 | 乐金电子(天津)电器有限公司 | Joint apparatus for evaporator and capillary tube |
| CN101813224A (en) * | 2010-05-25 | 2010-08-25 | 西安建筑科技大学 | Low-resistance square diverging reducing component |
| CN102072599A (en) * | 2011-01-24 | 2011-05-25 | 合肥美的荣事达电冰箱有限公司 | Refrigeration equipment and transition pipe for same |
| CN102644814A (en) * | 2012-04-23 | 2012-08-22 | 中国农业大学 | Large-diameter variable-diameter pipe joint and its manufacturing method |
| CN102829253A (en) * | 2011-06-18 | 2012-12-19 | 江苏信成电器总厂 | Reducing integrated connecting pipe |
| CN203453654U (en) * | 2013-08-28 | 2014-02-26 | 合肥美的电冰箱有限公司 | Gradual reducing pipe, refrigeration system with gradual reducing pipe and refrigerator with refrigeration system |
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2013
- 2013-08-28 CN CN201310382169.3A patent/CN103423525B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464253A (en) * | 2002-06-06 | 2003-12-31 | 乐金电子(天津)电器有限公司 | Joint apparatus for evaporator and capillary tube |
| CN101813224A (en) * | 2010-05-25 | 2010-08-25 | 西安建筑科技大学 | Low-resistance square diverging reducing component |
| CN102072599A (en) * | 2011-01-24 | 2011-05-25 | 合肥美的荣事达电冰箱有限公司 | Refrigeration equipment and transition pipe for same |
| CN102829253A (en) * | 2011-06-18 | 2012-12-19 | 江苏信成电器总厂 | Reducing integrated connecting pipe |
| CN102644814A (en) * | 2012-04-23 | 2012-08-22 | 中国农业大学 | Large-diameter variable-diameter pipe joint and its manufacturing method |
| CN203453654U (en) * | 2013-08-28 | 2014-02-26 | 合肥美的电冰箱有限公司 | Gradual reducing pipe, refrigeration system with gradual reducing pipe and refrigerator with refrigeration system |
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| CN103423525A (en) | 2013-12-04 |
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