CN104067073B - The Duct design method of centrifugal blower refrigerator - Google Patents
The Duct design method of centrifugal blower refrigerator Download PDFInfo
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- CN104067073B CN104067073B CN201280001386.7A CN201280001386A CN104067073B CN 104067073 B CN104067073 B CN 104067073B CN 201280001386 A CN201280001386 A CN 201280001386A CN 104067073 B CN104067073 B CN 104067073B
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- refrigerator
- air
- centrifugal blower
- room
- allocation
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0683—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans not of the axial type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2500/00—Problems to be solved
- F25D2500/02—Geometry problems
Abstract
Provide a kind of Duct design method of centrifugal blower refrigerator.First, theoretical allocation of the amount of air ratio is determined according to the volume of each room of refrigerator and temperature, then analytical calculation is carried out according to centrifugal blower rotating speed, impeller outlet angle determined " centrifugal blower speed triangle ", draw the critical technical parameter of the boundary condition analyzed as air duct flow field, finally utilize analogue simulation software to calculate and revise and obtain air channel structure.The air channel designed according to this method for designing can not only reasonable distribution refrigerator each room air quantity, can also farthest make the analogue value of Duct design close to theoretical value.
Description
Technical field
The present invention relates to a kind of refrigerator air duct method for designing, specifically refer to the refrigerator air duct method for designing adopting centrifugal blower.
Background technology
Wind cooling refrigerator is, by the design in air channel, the air absorbing evaporator capacity is assigned to each room, because the storage temperature of each room and the allocation of the amount of air ratio of this room have close relationship, and, the allocation of the amount of air situation of each room again with blower fan operating characteristic and each between the match condition of room duct resistance characteristic relevant.Therefore, the wind-cooling electric refrigerator of different size, different model, its blower fan form and air channel structure are all not identical, and its fan characteristic and duct resistance characteristic are not identical yet.
At present, the blower fan type that common wind cooling refrigerator uses is axial flow blower.The feature of axial flow blower is that fluid also flows out vertically from axially flowing into impeller, and flow is large, and lift (total head) is low, and specific revolution is large; Its advantage is that structure is simple, compact, and appearance and size is little, lighter in weight; And the feature of centrifugal blower to be lift higher, air stream axle, to inflow pivoting leaf road, is thrown to vane edge, is had higher pressure coefficient and relatively low discharge coefficient under centrifugal action.Therefore, the wind cooling refrigerator complicated for some air channel structures, duct resistance is larger, adopts centrifugal blower more more applicable than axial flow blower.
Mostly the air channel structure of existing wind cooling refrigerator is to carry out designing for axial flow blower air-supply feature.Because centrifugal blower air supply direction is completely different from the air supply pattern of axial flow blower, if adopt existing air channel, refrigerating chamber, refrigerating chamber, temperature-changing chamber Air Quantity Required cannot be met, therefore, the types entail for centrifugal blower is needed to carry out Duct design, in refrigerator, the flow direction of cold wind is dredged, make it reach higher operating efficiency.
Summary of the invention
For the deficiency that prior art exists, the technical issues that need to address of the present invention are, a kind of Duct design method of centrifugal blower refrigerator is provided, for the technical indicator of centrifugal blower, by steps such as numerical computations and CFD emulation, determine the relevant parameter of air channel structure, finally reach refrigeration, freezing, alternating temperature each room allocation of the amount of air is reasonable, air duct flow field is even, energy-saving and cost-reducing effect.
For solving the problems of the technologies described above, the technical solution used in the present invention is, a kind of Duct design method of centrifugal blower refrigerator, comprises the following steps:
Step one, determines refrigerator volume and room temperature: the temperature reached needed for clear and definite refrigerator each room volume and each room of refrigerator;
Step 2, calculates refrigerator each room allocation of the amount of air ratio: the temperature reached needed for refrigerator each room volume and each room of refrigerator, calculates each room allocation of the amount of air ratio theoretical value;
Step 3, calculates centrifugal blower speed triangle: absolute velocity v, relative velocity w and peripheral speed u when centrifugal blower rotates form centrifugal blower speed triangle, and wherein, absolute velocity v equals the vector of relative velocity w and peripheral speed u;
Step 4, simulation draws air channel structure: centrifugal blower speed triangle step 3 calculated, and as the boundary condition that air duct flow field is analyzed, utilizes analogue simulation software to carry out calculating and revising obtaining air channel structure.
The Duct design method of above-mentioned centrifugal blower refrigerator, in step 4, when utilizing analogue simulation software to calculate, centrifugal blower periphery is divided into arc surface, the velocity calculated is loaded into as air inlet on arc surface, and other air ports entering refrigerating chamber are as air outlet.
The Duct design method of above-mentioned centrifugal blower refrigerator, in step 4, when utilizing analogue simulation software correction, judge to solve the air channel structure exit allocation of the amount of air proportional die analog values that draws and whether each room allocation of the amount of air ratio theoretical value meets difference range within ± 5%.
Tool of the present invention has the following advantages and Advantageous Effects:
Refrigerator air duct method for designing of the present invention carries out the refrigerator of blowing for using centrifugal blower, first, determines theoretical allocation of the amount of air ratio, for Duct design provides rational criterion according to the volume of each room of refrigerator and temperature; Then carry out analytical calculation according to the size at centrifugal blower rotating speed, impeller outlet angle determined " centrifugal blower speed triangle ", draw the critical technical parameter analyzing boundary condition as air duct flow field; Finally, analogue simulation software is utilized to carry out calculating and revising obtaining air channel structure; Clear thinking of the present invention, convenient operation and the design and optimization of centrifugal blower refrigerator air flue structure of different size, model can be applicable to, make refrigerator each room allocation of the amount of air reasonable, air channel flow field is even, thus the available machine time reduces, and reaches energy-saving and cost-reducing effect.
When refrigerator air duct method for designing of the present invention utilizes analogue simulation software to calculate, centrifugal blower periphery is divided into arc surface, the velocity calculated is loaded into as air inlet on arc surface, other air ports entering refrigerating chamber are as air outlet; More accurately according to structure and the air-supply feature of centrifugal blower, air inlet and air outlet can be determined, thus reach reasonable distribution and the control of air quantity.
When refrigerator air duct method for designing of the present invention utilizes analogue simulation software correction, judge to solve the air channel structure exit allocation of the amount of air proportional die analog values that draws and whether each room allocation of the amount of air ratio theoretical value meets difference range within ± 5%; The analogue value of Duct design farthest can be made close to theoretical value, ensure that the air channel structure produced according to analogue value design is when refrigerator normally works, and better can guide wind direction, obtain better refrigeration.
Accompanying drawing explanation
Fig. 1 is centrifugal blower speed triangle schematic diagram of the present invention;
Fig. 2 is the refrigerating chamber speed vector figure of initial air duct flow field in embodiment;
Fig. 3 is the temperature-changing chamber speed vector figure of initial air duct flow field in embodiment;
Fig. 4 is the refrigerating chamber speed vector figure of initial air duct flow field in embodiment;
Fig. 5 revises air channel centrifugal blower to divide wind place structure chart in embodiment;
Fig. 6 revises air channel front view in embodiment;
Fig. 7 revises air channel rearview in embodiment.
Detailed description of the invention
The present embodiment is to adopt the refrigerator of centrifugal blower, and its Duct design method, comprises the following steps:
Step one, determines refrigerator volume and room temperature: the temperature reached needed for clear and definite refrigerator each room volume and each room of refrigerator; The size of refrigerating chamber, temperature-changing chamber, refrigerating chamber is respectively 152L, 35L, 74L; Needed for the temperature that reaches be respectively: 4 DEG C ,-6 DEG C ,-18 DEG C.
Step 2, calculates refrigerator each room allocation of the amount of air ratio: the temperature reached needed for refrigerator each room volume and each room of refrigerator, utilize EES software calculate refrigerating chamber, refrigerating chamber, temperature-changing chamber allocation of the amount of air ratio theoretical value be 19.4%: 66.7%: 13.9%.
Step 3, calculate centrifugal blower speed triangle: absolute velocity v, relative velocity w and peripheral speed u when centrifugal blower rotates form centrifugal blower speed triangle, as shown in Figure 1, wherein, absolute velocity v equals the vector of relative velocity w and peripheral speed u, calculate v=5.844 [m/s] thus, w=7.553 [m/s], u=11.723 [m/s].
Step 4, simulation draws air channel structure: centrifugal blower speed triangle step 3 calculated, that is: v=5.844 [m/s], w=7.553 [m/s], u=11.723 [m/s], as the boundary condition that air duct flow field is analyzed, utilize analogue simulation software calculate and revise, comprise the steps:
(1) air body model imports and analyzes: imported in analogue simulation software by the air body model generated, carry out diagnostic scan, and carry out model treatment, the model handled well is carried out stress and strain model, automatic generating mesh, number of grid is about 1,000,000 grids; Then, material properties is set, and needs to arrange variation pattern in " fluid ".
(2) determine air inlet and air outlet: centrifugal blower periphery is evenly divided into 18 parts of arc surfaces, is loaded into as air inlet on arc surface using the velocity calculated, other air ports entering refrigerating chamber are as air outlet.
(3) Selection parameter solves: under automatic forced convection model, and gravity direction is (0,0 ,-1), adopts turbulence model to carry out UNSTEADY FLOW and solves and draw air channel structure, as in Figure 2-4; The air channel structure simultaneously drawn each exit air quantity is as shown in table 1:
Table 1 initial designs air channel structure each exit air quantity
As can be seen from the data in table 1, refrigerating chamber, temperature-changing chamber, refrigerating chamber allocation of the amount of air proportional die analog values are 17.7%: 9.2%: 73.1%.
(4) error judgment: judge that whether solve the air channel structure exit allocation of the amount of air proportional die analog values that draws meets difference range within ± 5% with each room allocation of the amount of air ratio theoretical value, if satisfied, carries out correcting process; The allocation of the amount of air ratio theoretical value of the refrigerating chamber in above-mentioned steps two, temperature-changing chamber, refrigerating chamber is 19.4%: 13.9%: 66.7%; It can thus be appreciated that the data difference scope in table 1 exceeds ± 5%, refrigerating chamber and temperature-changing chamber air quantity less, need to carry out correcting process.
(5) correcting process: observe speed vector figure, local is produced to the corresponding air channel structure of eddy current, as shown in Figure 3, eddy current is there is in temperature-changing chamber in air channel, needs are modified, repeat above-mentioned steps (1)-(4) after amendment, the air channel structure obtained each exit air quantity is as shown in table 2:
Rear design air channel structure each exit air quantity revised by table 2
As can be seen from the data in table 2, refrigerating chamber, temperature-changing chamber, refrigerating chamber allocation of the amount of air proportional die analog values are 19.5%: 16.4%: 64.1%; The allocation of the amount of air ratio theoretical value of the refrigerating chamber in above-mentioned steps two, temperature-changing chamber, refrigerating chamber is 19.4%: 13.9%: 66.7%; It can thus be appreciated that the data difference scope in table 2, within ± 5%, meets design requirement;
Now, refrigerator air duct centrifugal blower divides the structure at wind place, as shown in Figure 5, and wherein a
1=75 °, a
2=65 °, a
3=110 °, a
4=110 °, centrifugal blower external diameter is to the distance b=5mm ± 1mm (considering structural member distortion and foozle) at point wind place, and the junction curve in air channel is three rank Beziers, and as shown in Figure 7, this is rational air channel structure.
The above is only to preferred embodiment of the present invention, and be not do other forms of restriction to the present invention, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But, everyly do not depart from the present invention program's content, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and remodeling, still belong to protection scope of the present invention.
Claims (3)
1. a Duct design method for centrifugal blower refrigerator, is characterized in that: comprise the following steps:
Step one, determines refrigerator volume and room temperature: the temperature reached needed for clear and definite refrigerator each room volume and each room of refrigerator;
Step 2, calculates refrigerator each room allocation of the amount of air ratio: the temperature reached needed for refrigerator each room volume and each room of refrigerator, calculates each room allocation of the amount of air ratio theoretical value;
Step 3, calculates centrifugal blower speed triangle: absolute velocity v, relative velocity w and peripheral speed u when centrifugal blower rotates form centrifugal blower speed triangle, and wherein, absolute velocity v equals the vector of relative velocity w and peripheral speed u;
Step 4, simulation draws air channel structure: centrifugal blower speed triangle step 3 calculated, and as the boundary condition that air duct flow field is analyzed, utilizes analogue simulation software to carry out calculating and revising obtaining air channel structure.
2. the Duct design method of centrifugal blower refrigerator according to claim 1, it is characterized in that: in step 4, when utilizing analogue simulation software to calculate, centrifugal blower periphery is divided into arc surface, be loaded into as air inlet on arc surface using the velocity calculated, other air ports entering refrigerating chamber are as air outlet.
3. the Duct design method of centrifugal blower refrigerator according to claim 1, it is characterized in that: in step 4, when utilizing analogue simulation software correction, judge to solve the air channel structure exit allocation of the amount of air proportional die analog values that draws and whether each room allocation of the amount of air ratio theoretical value meets difference range within ± 5%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/081387 WO2014040267A1 (en) | 2012-09-14 | 2012-09-14 | Air channel design method for refrigerator with centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104067073A CN104067073A (en) | 2014-09-24 |
| CN104067073B true CN104067073B (en) | 2016-04-13 |
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| CN201280001386.7A Active CN104067073B (en) | 2012-09-14 | 2012-09-14 | The Duct design method of centrifugal blower refrigerator |
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| CN (1) | CN104067073B (en) |
| WO (1) | WO2014040267A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792095B (en) * | 2015-04-30 | 2017-10-27 | 合肥华凌股份有限公司 | Refrigerator |
| WO2016206474A1 (en) * | 2015-06-24 | 2016-12-29 | 合肥华凌股份有限公司 | Enclosure component used in air cooled refrigerator, air cooled refrigerator, and enclosure component designing method |
| KR20170124222A (en) * | 2016-05-02 | 2017-11-10 | 동부대우전자 주식회사 | Air blower for refrigerator and refrigerator comprising the same |
| CN113280561B (en) * | 2020-02-20 | 2022-12-13 | 佛山市云米电器科技有限公司 | Refrigerator control method, refrigerator and computer-readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520052A (en) * | 2008-10-28 | 2009-09-02 | 兰州理工大学 | Reverse design method for impeller of centrifugal pump |
| CN101787985A (en) * | 2010-01-28 | 2010-07-28 | 北京理工大学 | Negative-pressure adsorption principle-based design method of centrifugal impeller of wall surface-moving robot |
| CN101976276A (en) * | 2010-09-21 | 2011-02-16 | 海信（山东）空调有限公司 | Optimization design method for air conditioner airduct structure |
| CN102562658A (en) * | 2012-03-27 | 2012-07-11 | 海信容声(广东)冰箱有限公司 | Centrifugal fan impeller for air cooling refrigerator |
| CN202370865U (en) * | 2011-10-24 | 2012-08-08 | 永济新时速电机电器有限责任公司 | Dual-air duct internal fan |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3727027B2 (en) * | 2003-07-02 | 2005-12-14 | 行宣 阪田 | Centrifugal impeller and its design method |
| KR100556947B1 (en) * | 2003-10-23 | 2006-03-03 | 엘지전자 주식회사 | Window type air-conditioner and centrifugal fan apply to this |
| KR100550529B1 (en) * | 2003-12-30 | 2006-02-10 | 엘지전자 주식회사 | Centrifugal fan of a refrigerator |
| KR101486550B1 (en) * | 2010-11-16 | 2015-01-23 | 삼성전자 주식회사 | Circular fan for air-blowing and refrigerator having the same |
-
2012
- 2012-09-14 CN CN201280001386.7A patent/CN104067073B/en active Active
- 2012-09-14 WO PCT/CN2012/081387 patent/WO2014040267A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520052A (en) * | 2008-10-28 | 2009-09-02 | 兰州理工大学 | Reverse design method for impeller of centrifugal pump |
| CN101787985A (en) * | 2010-01-28 | 2010-07-28 | 北京理工大学 | Negative-pressure adsorption principle-based design method of centrifugal impeller of wall surface-moving robot |
| CN101976276A (en) * | 2010-09-21 | 2011-02-16 | 海信（山东）空调有限公司 | Optimization design method for air conditioner airduct structure |
| CN202370865U (en) * | 2011-10-24 | 2012-08-08 | 永济新时速电机电器有限责任公司 | Dual-air duct internal fan |
| CN102562658A (en) * | 2012-03-27 | 2012-07-11 | 海信容声(广东)冰箱有限公司 | Centrifugal fan impeller for air cooling refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104067073A (en) | 2014-09-24 |
| WO2014040267A1 (en) | 2014-03-20 |
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Effective date of registration: 20160413 Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense (Shandong) refrigerator Co., Ltd. Address before: 266101 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: Hisense (Beijing) Electric Co., Ltd. Patentee before: Hisense Ronshen (Guangdong) Refrigerator Co., Ltd. |
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Address after: 266736, No. 8, Hisense Avenue, South Village, Pingdu City, Shandong, Qingdao Patentee after: Hisense (Shandong) refrigerator Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: Hisense (Shandong) refrigerator Co., Ltd. |
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