CN106839086A - A kind of fan coil units - Google Patents
A kind of fan coil units Download PDFInfo
- Publication number
- CN106839086A CN106839086A CN201510839404.4A CN201510839404A CN106839086A CN 106839086 A CN106839086 A CN 106839086A CN 201510839404 A CN201510839404 A CN 201510839404A CN 106839086 A CN106839086 A CN 106839086A
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- CN
- China
- Prior art keywords
- plate
- heat exchanger
- air inlet
- plane
- housing
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The present invention relates to a kind of fan coil units, including blower fan and coil pipe, coil pipe includes housing and the heat exchanger in housing, housing and front end-plate on offer air inlet, air outlet is offered on end plate, upper edge of the air inlet near front end-plate, the air outlet of blower fan is relative with the air inlet of housing to be connect,, more than the distance between lee face and end plate, the angle between the front bevel and plane of base plate is more than the angle between back bevel and plane for the distance between the windward side of heat exchanger and front end-plate.The structure design of present invention heat exchanger and base plate, makes air-flow enter from air inlet and flows more smooth after housing, fully gently equably reaches heat exchanger after diffusion, wind speed reduction, therefore, it is possible to avoid heat exchanger fin sound and the generation resonated, reduces level of noise.And, air-flow of the present invention obtains uniform arrival heat exchanger after fully diffusion, and the heat transfer effect of heat exchanger is greatly improved, and heat transfer effect is lifted at 10% or so.
Description
Technical field
It is to be related to a kind of fan coil for being applied to air-conditioning system specifically the present invention relates to a kind of air temperature modification technical field.
Background technology
End-equipment-the fan coil of central air conditioner system, is a kind of air-conditioning device for fitting together blower fan and heat exchange coil, is now widely used for each emporium, hospital, office building, hotel.With the continuous improvement of national life level, especially in the place that hotel etc. is higher to noise, abnormal sound requirement, the reduction of noise, the elimination of abnormal sound are particularly important.
The structure of existing fan coil is as shown in Figure 1 and Figure 2, including blower fan 1 and coil pipe, coil pipe includes housing and the heat exchanger 2 in housing, air inlet is offered on the housing front end-plate 31 relative with blower fan 1, air outlet is offered on the housing end plate 32 relative with front end-plate 31, heat exchanger 2 is identical with the distance of end plate 32 to front end-plate 31.The base plate 33 of housing includes the front bevel, plane and the back bevel that connect successively, and the angle between angle and back bevel and plane between front bevel and plane is identical, and front bevel is identical in the projected area of the projection with back bevel in the in-plane direction of in-plane.
As shown in figure 1, the air-flow that produces of blower fan from air inlet into housing after level blow to heat exchanger 2, and air-flow concentrates on the position on unit top 1/2, and the bottom of unit only has little diffusive gas flow, and caused consequence is as follows：
（1）, because upper air wind speed is high, the spacing of fin of heat exchanger only has and has fluting on 1.4 ~ 1.7mm, and fin, air-flow produces the effect blown a whistle after blowing to heat exchanger, cause high noise and have fin sound, and the fin of heat exchanger easily resonates with housing, produces larger noise.
（2）, top only concentrated on due to air-flow, exchanged heat so the heat transfer effect on heat exchanger top is relatively good with chilled water by wind, the air-flow of bottom only has less diffusive gas flow, it is impossible to fully exchanges the hot and cold amount of heat exchanger for so heat transfer effect is substantially reduced, causes the heat transfer effect of whole heat exchanger poor.
As shown in Fig. 2 heat exchanger is arranged on the center of unit, fan outlet is shorter apart from d to heat exchanger, and air-flow cannot fully spread, and caused consequence is as follows：
（1）, air-flow cannot fully spread and just have arrived at heat exchanger, so air-flow wind speed is high, the spacing of fin of heat exchanger only has and has fluting on 1.4 ~ 1.7mm, and fin, and air-flow produces the effect blown a whistle after blowing to heat exchanger, causes high noise and has fin sound.
（2）Air-flow cannot sufficiently spread and just have arrived at heat exchanger, and the intermediate distance e of heat exchanger does not have wind to arrive, it is impossible to fully exchange the hot and cold amount of heat exchanger for so heat transfer effect is substantially reduced, cause the heat transfer effect of whole heat exchanger poor.
Base plate front bevel is identical with the angle of plane with back bevel with the angle of plane, and angle changing rate is steep, causes unit bottom airflow too big into the angle of heat exchanger, and gas-flow resistance is big and airflow direction is undergone mutation, and causes to produce abnormal sound, level of noise increase.
Thus, how to reduce the noise of wind disk, elimination fin sound is a technical issues that need to address.
The content of the invention
It is an object of the invention to provide a kind of fan coil units, the existing technical problem that fan coil units noise is big, heat transfer effect is poor is solved.
In order to solve the above technical problems, the present invention is achieved using following technical scheme：
A kind of fan coil units, including blower fan and coil pipe, the coil pipe includes housing and the heat exchanger in housing, air inlet is offered on the housing front end-plate relative with blower fan, air outlet is offered on the housing end plate relative with the front end-plate, upper edge of the air inlet near the front end-plate, the air outlet of the blower fan is relative with the air inlet of the housing to be connect, the distance between the windward side of the heat exchanger and described front end-plate are L1, the distance between the lee face of the heat exchanger and described end plate are L2, L1 ＞ L2；The base plate of the housing includes the front bevel, plane and the back bevel that connect successively, and the front bevel connects with the front end-plate, and the back bevel connects with the end plate, and the angle between the front bevel and plane is more than the angle between the back bevel and plane.
Fan coil units as described above, it is characterised in that 1.5≤L1/L2≤2.5；The front bevel, plane, back bevel projection ratio in the in-plane direction are 10：9：3-12:9:Between 5.
Fan coil units as described above, the angle between the front bevel and the plane is between 150 ° -170 °.
Fan coil units as described above, the height of the air inlet and the front end-plate highly ratio are between 3/5-4/5；The area ratio of the windward side of the incoming air area of the air inlet and the heat exchanger is between 1/4-1/3.
Fan coil units as described above, the quantity of the air inlet is identical with the quantity of the blower fan, and when the air inlet is provided with multiple, the ratio of the distance between adjacent air inlet and the air inlet width is between 1/2-3/4.
Fan coil units as described above, are provided with flow deflector in the housing, the flow deflector is fixed on the medial surface above the air inlet of the front end-plate.
Fan coil units as described above, the flow deflector includes the plane diversion division and inclined-plane diversion division that connect, and the plane diversion division is fixed on the medial surface above the air inlet of the front end-plate, and the inclined-plane diversion division is inclined to the base plate direction.
Fan coil units as described above, it is characterised in that the angle between the plane diversion division and inclined-plane diversion division is between 120 ° -170 °.
Fan coil units as described above, it is characterised in that the inclined-plane diversion division is in the projection in air inlet direction and the area ratio of air inlet between 1/12-1/10.
Fan coil units as described above, the ultimate range and the distance between the heat exchanger and the front end-plate ratio between the flow deflector and the front end-plate are between 1/8-1/6.
Compared with prior art, advantages and positive effects of the present invention are：The distance between the windward side of present invention heat exchanger and front end-plate are more than the distance between lee face and end plate, coordinate the structure design of base plate, air-flow from air inlet enter housing after flow it is more smooth, and equably reach heat exchanger after can sufficiently being spread, be reduced by the air-flow wind speed of heat exchanger, air-flow gently by heat exchanger, thus, the generation of heat exchanger fin sound and resonance can be avoided, level of noise is reduced.And, air-flow obtains uniform arrival heat exchanger after fully diffusion, and the heat transfer effect of heat exchanger is greatly improved, and heat transfer effect is lifted at 10% or so.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become clearer.
Brief description of the drawings
Fig. 1 is the structural representation of fan coil units in background technology.
Fig. 2 is the top view of fan coil units in background technology.
Fig. 3 is the structural representation of specific embodiment of the invention fan coil units.
Fig. 4 is the top view of specific embodiment of the invention fan coil units
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 3,4, the present embodiment proposes a kind of fan coil units, including blower fan 1 and coil pipe.Coil pipe includes housing 3 and the heat exchanger 2 in housing 3.
Housing 3 is cuboid, including front end-plate 31, end plate 32, base plate 33, top board and left side plate.Blower fan 1 is relative with the front end-plate of housing 3.
Air inlet 311 is offered on the front end-plate 31 of housing 3, the air outlet of blower fan 1 is adapted with the air inlet 311 of front end-plate 31, the air outlet of blower fan 1 is relative with the air inlet 311 of housing 3 to be connect, and the air-flow that blower fan 1 is produced carries out heat exchange during arrival heat exchanger 2 into housing by air inlet 311 with heat exchanger 2.Wherein, upper edge of the air inlet 311 near front end-plate 31.
Air outlet 321 is offered on the end plate 32 relative with front end-plate 31 of housing 3, is blown out from air outlet 321 with the air-flow that heat exchanger 2 carries out heat exchange, realize changing the effect of environment temperature.
Heat exchanger 2 is located in housing 3, and the front end-plate 31 and end plate 32 with housing 3 are parallel, and the distance between the windward side of heat exchanger 2 and front end-plate 31 are L1, and the distance between the lee face of heat exchanger 2 and end plate 32 are L2, L1 ＞ L2.Preferably, 1.5≤L1/L2≤2.5.The Position Design of heat exchanger 2 can improve air-flow into the smoothness and uniformity flowed after housing, air-flow is uniformly reached heat exchanger, and after carrying out fully heat exchange with heat exchanger, be flowed out from air outlet rapidly.Because the air-flow wind speed by heat exchanger is reduced, air-flow can avoid the generation of heat exchanger fin sound and improve heat exchange efficiency gently by heat exchanger.Simultaneously as the design of the position of heat exchanger, heat exchanger will not resonate with housing, thus, there is the noise that resonance is produced in the fin and housing that can also avoid heat exchanger.
The base plate 33 of housing 3 includes the front bevel 331, plane 332 and the back bevel 333 that connect successively, front bevel 331 connects with front end-plate 31, back bevel 333 connects with end plate 32, and the angle between front bevel 331 and plane 332 is more than the angle between back bevel 333 and plane 332.Preferably, the angle between front bevel 331 and plane 332 is between 150 ° -170 °.The projection ratio of front bevel 331, plane 332, back bevel 333 on the direction of plane 332 is 10：9：3-12:9:Between 5.Angle between the front bevel 331 and plane 332 of base plate 33 is more than the angle between back bevel 333 and plane 332, so that the bottom airflow of housing 3 diminishes into the angle of heat exchanger 2, the angle of front bevel 331 reaches consistent with airflow direction, so as to eliminate fin sound, reduces level of noise.Angle between back bevel 333 and plane 332 reduces, and air-flow can improve the wind velocity that of air outlet by after heat exchanger 2, air outlet being reached along back bevel 333, improve heat exchange efficiency.
Heat exchanger 2 is located at the top of plane 332, due to the Position Design and the structure design of base plate of heat exchanger 2, after the air-flow that blower fan 1 is produced enters in housing 3 from air inlet 311, air-flow can pass smoothly toward heat exchanger 2 along the front bevel 331 of base plate 3, air-flow equably reaches heat exchanger 2 after can sufficiently being spread, it is reduced by the air-flow wind speed of heat exchanger 2, the generation of the fin sound of heat exchanger 2 and resonance can be avoided, reduces level of noise.
In order to further reduce noise, the present embodiment is designed the position of air inlet and size, and the height and the height of front end-plate 31 of air inlet 311 compare between 3/5-4/5；The area ratio of the incoming air area of air inlet 311 and the windward side of heat exchanger 2 is between 1/4-1/3.The design of the position and size of air inlet 311 and the cooperation of heat exchanger 2 and base plate 33, can make air-flow be evenly distributed to the windward side of whole heat exchanger 2, while reducing noise, improve the heat transfer effect of heat exchanger 2.
The quantity of air inlet 311 is identical with the quantity of blower fan 1 and corresponds.The blower fan 2 of the present embodiment is provided with two, and the air inlet on front end-plate 31 is also equipped with two.The ratio of the distance between two air inlets 311 and the width of air inlet 311 is between 1/2-3/4.The abnormal sound for interfering generation of air intake when can not only avoid two blower fans 2 from running, additionally it is possible to improve the air-supply efficiency of blower fan.
Flow deflector 4 is provided with housing 3, flow deflector 4 is fixed on the medial surface of the top of air inlet 311 of front end-plate 31.Flow deflector 4 makes air-flow operation curve more reasonable, meets the spiral of Archimedes of blower fan 1, thus makes the wind speed of arrival heat exchanger 2 and reduces, and blows evenly, so as to eliminate fin sound.
Flow deflector 4 includes the plane diversion division 41 and inclined-plane diversion division 42 that connect, and plane diversion division 41 is fixed on the medial surface of the top of air inlet 311 of front end-plate 31, and inclined-plane diversion division 42 is inclined to the direction of base plate 33.
Angle between plane diversion division 41 and inclined-plane diversion division 42 is between 120 ° -170 °.
Inclined-plane diversion division 42 is in the projection in the direction of air inlet 311 and the area ratio of air inlet 311 between 1/12-1/10；Ultimate range and the distance between the heat exchanger and the front end-plate ratio between flow deflector and front end-plate is between 1/8-1/6.The structure design of flow deflector 2 can be further to blower fan 1 air-flow play guide effect, air-flow can pass smoothly toward heat exchanger 2 along the front bevel 331 of flow deflector 2 and base plate 3, air-flow equably reaches heat exchanger 2 after can sufficiently being spread, it is reduced by the air-flow wind speed of heat exchanger 2, the generation of the fin sound of heat exchanger 2 and resonance can be avoided, reduce level of noise, simultaneously air-flow can be made to be evenly distributed to the windward side of whole heat exchanger 2, while reducing noise, the heat transfer effect of heat exchanger 2 is improved.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although being described in detail to the present invention with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent to which part technical characteristic；And these modifications or replacement, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. a kind of fan coil units, including blower fan and coil pipe, the coil pipe includes housing and the heat exchanger in housing, air inlet is offered on the housing front end-plate relative with blower fan, air outlet is offered on the housing end plate relative with the front end-plate, upper edge of the air inlet near the front end-plate, the air outlet of the blower fan is relative with the air inlet of the housing to be connect, it is characterized in that, the distance between the windward side of the heat exchanger and described front end-plate are L1, the distance between the lee face of the heat exchanger and described end plate are L2, L1 ＞ L2；The base plate of the housing includes the front bevel, plane and the back bevel that connect successively, and the front bevel connects with the front end-plate, and the back bevel connects with the end plate, and the angle between the front bevel and plane is more than the angle between the back bevel and plane.
2. fan coil units according to claim 1, it is characterised in that 1.5≤L1/L2≤2.5；The front bevel, plane, back bevel projection ratio in the in-plane direction are 10：9：3-12:9:Between 5.
3. fan coil units according to claim 1 and 2, it is characterised in that the angle between the front bevel and the plane is between 150 ° -170 °.
4. fan coil units according to claim 1 and 2, it is characterised in that the height of the air inlet and the front end-plate highly ratio are between 3/5-4/5；The area ratio of the windward side of the incoming air area of the air inlet and the heat exchanger is between 1/4-1/3.
5. fan coil units according to claim 1 and 2, it is characterized in that, the quantity of the air inlet is identical with the quantity of the blower fan, and when the air inlet is provided with multiple, the ratio of the distance between adjacent air inlet and the air inlet width is between 1/2-3/4.
6. fan coil units according to claim 1 and 2, it is characterised in that flow deflector is provided with the housing, the flow deflector is fixed on the medial surface above the air inlet of the front end-plate.
7. fan coil units according to claim 6, it is characterized in that, the flow deflector includes the plane diversion division and inclined-plane diversion division that connect, and the plane diversion division is fixed on the medial surface above the air inlet of the front end-plate, and the inclined-plane diversion division is inclined to the base plate direction.
8. fan coil units according to claim 7, it is characterised in that the angle between the plane diversion division and inclined-plane diversion division is between 120 ° -160 °.
9. fan coil units according to claim 7, it is characterised in that the inclined-plane diversion division is in the projection in air inlet direction and the area ratio of air inlet between 1/12-1/10.
10. fan coil units according to claim 7, it is characterised in that the ultimate range and the distance between the heat exchanger and the front end-plate ratio between the flow deflector and the front end-plate are between 1/8-1/6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839404.4A CN106839086B (en) | 2015-11-27 | 2015-11-27 | Fan coil unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839404.4A CN106839086B (en) | 2015-11-27 | 2015-11-27 | Fan coil unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106839086A true CN106839086A (en) | 2017-06-13 |
| CN106839086B CN106839086B (en) | 2019-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510839404.4A Active CN106839086B (en) | 2015-11-27 | 2015-11-27 | Fan coil unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106839086B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811045A (en) * | 2020-06-10 | 2020-10-23 | 胡晓军 | Fan coil for air supply system of air conditioner |
| WO2021082328A1 (en) * | 2019-10-30 | 2021-05-06 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| CN115342441A (en) * | 2022-08-19 | 2022-11-15 | 青岛海信日立空调系统有限公司 | Air conditioner |
| WO2024037083A1 (en) * | 2022-08-18 | 2024-02-22 | 青岛海信日立空调系统有限公司 | Air conditioner, centrifugal fan, and air conditioner indoor unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100223528B1 (en) * | 1997-06-21 | 1999-10-15 | 박승환 | Calm airconditioner |
| CN202012988U (en) * | 2011-04-20 | 2011-10-19 | 浙江国祥空调设备有限公司 | Fan coil unit with three rows of tubes |
| CN202532619U (en) * | 2012-04-01 | 2012-11-14 | 北京振兴华龙制冷设备有限责任公司 | Ultra low noise and energy-saving type fan coil unit |
| CN104566636A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Air duct machine and air conditioner with same |
-
2015
- 2015-11-27 CN CN201510839404.4A patent/CN106839086B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100223528B1 (en) * | 1997-06-21 | 1999-10-15 | 박승환 | Calm airconditioner |
| CN202012988U (en) * | 2011-04-20 | 2011-10-19 | 浙江国祥空调设备有限公司 | Fan coil unit with three rows of tubes |
| CN202532619U (en) * | 2012-04-01 | 2012-11-14 | 北京振兴华龙制冷设备有限责任公司 | Ultra low noise and energy-saving type fan coil unit |
| CN104566636A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Air duct machine and air conditioner with same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021082328A1 (en) * | 2019-10-30 | 2021-05-06 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| US11808464B2 (en) | 2019-10-30 | 2023-11-07 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Air conditioner indoor unit and air conditioner |
| CN111811045A (en) * | 2020-06-10 | 2020-10-23 | 胡晓军 | Fan coil for air supply system of air conditioner |
| WO2024037083A1 (en) * | 2022-08-18 | 2024-02-22 | 青岛海信日立空调系统有限公司 | Air conditioner, centrifugal fan, and air conditioner indoor unit |
| CN115342441A (en) * | 2022-08-19 | 2022-11-15 | 青岛海信日立空调系统有限公司 | Air conditioner |
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| Publication number | Publication date |
|---|---|
| CN106839086B (en) | 2019-12-17 |
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