CN114923277A - Air duct machine - Google Patents
Air duct machine Download PDFInfo
- Publication number
- CN114923277A CN114923277A CN202210584082.3A CN202210584082A CN114923277A CN 114923277 A CN114923277 A CN 114923277A CN 202210584082 A CN202210584082 A CN 202210584082A CN 114923277 A CN114923277 A CN 114923277A
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- China
- Prior art keywords
- air
- heat exchanger
- fan assembly
- air duct
- rectifying structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000004088 simulation Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
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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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides a ducted air conditioner, comprising: the air conditioner comprises a shell, wherein an air duct is formed in the shell, and a heat exchanger and a fan assembly are arranged in the air duct; the rectifying structure is arranged in the air duct. According to the air duct machine provided by the invention, the rectification structure is arranged between the fan assembly and the heat exchanger, and is used for rectifying the airflow blown to the heat exchanger by the fan assembly and/or the airflow obtained by the heat exchanger by the fan assembly, so that the airflow blown to the heat exchanger by the fan assembly can be uniformly distributed to the windward side of the heat exchanger, the overall heat exchange efficiency of the heat exchanger is ensured, the air at the heat exchanger can be more smoothly obtained by the fan assembly, the preset working efficiency of the fan assembly and the heat exchanger can be achieved, meanwhile, the noise of the air duct machine caused by wind noise generated when the airflow passes through the heat exchanger can be avoided, and the noise of the air duct machine is effectively reduced.
Description
Technical Field
The invention relates to the technical field of air treatment equipment, in particular to an air duct machine.
Background
The tuber pipe machine is the one kind of air conditioner, in order to improve the travelling comfort, some tuber pipe machines adopt and go out cold wind, go out hot-blast mode down, can realize waterfall formula refrigeration and carpet formula warm braw like this, in order to realize this kind of air-out mode, need to change the inside gas flow direction of tuber pipe machine, however, the position of arranging of the heat exchanger in the current tuber pipe machine and fan all is fixed, when the flow direction of air current changes, the inside gas distribution condition of tuber pipe machine also along with changing, finally cause the gas distribution after the change can not reach the required state of heat exchanger or fan, can't guarantee the make full use of heat exchanger or fan, cause the problem that the heat exchange efficiency of tuber pipe machine reduces.
Disclosure of Invention
The embodiment of the invention provides an air duct machine, which aims to solve the problem that the air duct machine in the prior art is low in heat exchange efficiency.
To this end, the present invention provides a ducted air conditioner comprising:
the air conditioner comprises a shell, wherein an air duct is formed in the shell, and a heat exchanger and a fan assembly are arranged in the air duct;
the rectifying structure is arranged in the air duct and is positioned between the heat exchanger and the fan assembly;
the ratio of the minimum distance L1 from the rectifying structure to the heat exchanger to the minimum distance L2 from the rectifying structure to the fan assembly is 1-L1/L2-1.4.
The fairing structure has first and second opposing sides, the first side facing the heat exchanger and the second side facing the fan assembly.
The air duct is characterized in that a plurality of through holes are formed in the rectifying structure, and air flow in the air duct passes through the rectifying structure through the through holes.
The diameter d1 of the through hole is within the range of 3 mm-6 mm of d 1.
The distance d2 between two adjacent through holes is in the range of d2 not less than 8mm and is not less than 4 mm.
The rectifying structure comprises a rectifying plate, and the thickness b of the rectifying plate is within the range of 0.6mm and less than or equal to b and less than or equal to 2 mm.
And a sealing element is arranged between the rectifying structure and the inner surface of the air duct, and the airflow between the heat exchanger and the fan assembly flows through the rectifying structure.
The seal comprises a sponge.
The shell is provided with a lower air port and a side air port;
in the heating mode of the air pipe machine, the lower air opening is an air outlet, and the side air opening is an air inlet;
and the air pipe machine is in a refrigeration mode, the lower air opening is an air inlet, and the side air opening is an air outlet.
The fan assembly is arranged between the side air opening and the heat exchanger; and/or the fan assembly is rotatably arranged in the shell.
According to the air duct machine provided by the invention, the rectification structure is arranged between the fan assembly and the heat exchanger, and is used for rectifying the airflow blown to the heat exchanger by the fan assembly and/or the airflow obtained by the heat exchanger by the fan assembly, so that the airflow blown to the heat exchanger by the fan assembly can be uniformly distributed to the windward side of the heat exchanger, the overall heat exchange efficiency of the heat exchanger is ensured, the air at the heat exchanger can be more smoothly obtained by the fan assembly, the preset working efficiency of the fan assembly and the heat exchanger can be achieved, meanwhile, the noise of the air duct machine caused by wind noise generated when the airflow passes through the heat exchanger can be avoided, and the noise of the air duct machine is effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of a duct type air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a rectifying structure according to an embodiment of the present invention;
FIG. 3 is a side view of a fairing provided in an embodiment of the invention;
in the figure:
1. a housing; 2. an air duct; 3. a heat exchanger; 4. a fan assembly; 5. a rectifying structure; 51. and a through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 3, the present application provides a duct type air conditioner including: the air conditioner comprises a shell 1, wherein an air duct 2 is formed in the shell 1, and a heat exchanger 3 and a fan assembly 4 are arranged in the air duct 2; the rectifying structure 5 is arranged in the air duct 2, and the rectifying structure 5 is positioned between the heat exchanger 3 and the fan assembly 4; the ratio of the minimum distance L1 from the rectifying structure 5 to the heat exchanger 3 to the minimum distance L2 from the rectifying structure 5 to the fan assembly 4 is 1-L1/L2-1.4.
By arranging the rectifying structure 5, when the fan assembly 4 blows air flow to the heat exchanger 3, the air flow blown to the heat exchanger 3 by the fan assembly 4 can be uniformly distributed to the windward side of the heat exchanger 3, so that the overall heat exchange efficiency of the heat exchanger 3 is ensured; when fan subassembly 4 carries out the rectification by the air current that heat exchanger 3 located obtained, also can make fan subassembly 4 can be more smooth and easy acquire the gas of heat exchanger 3 department to make fan subassembly 4 and heat exchanger 3 homoenergetic reach predetermined work efficiency, can also avoid the air current to form wind when heat exchanger 3 simultaneously and make tuber pipe machine noise, the noise of effectual reduction tuber pipe machine.
The air duct machine of the embodiment is subjected to simulation tests, the numerical value of L1/L2 is changed, and the simulation results are as follows:
| L1/L2 | rotational speed (rpm) | Calculating air volume (m) 3 /h) | Calculating pressure head (Pa) | Calculated efficiency (%) |
| 0.9 | 2200 | 455 | 73 | 58.9 |
| 1 | 2200 | 509 | 81 | 61 |
| 1.2 | 2200 | 512 | 83 | 62.8 |
| 1.4 | 2200 | 479 | 79 | 60 |
| 1.5 | 2200 | 420 | 70 | 57 |
According to simulation data, when the L1/L2 is 1.2, the air quantity and the pressure head reach the maximum values, and the overall efficiency of the air duct machine is highest; when L1/L2 is increased to 1.4, the air volume and the pressure head start to be reduced, and the efficiency of the whole machine also starts to be reduced; when L1/L2 is continuously increased to 1.5, the air volume and the pressure head are continuously reduced, the efficiency of the whole machine is further reduced, and the whole efficiency cannot be ensured; when L1/L2 is reduced to 1, the air volume and the pressure head start to be reduced, and the efficiency of the whole machine is also synchronously reduced; when L1/L2 is continuously reduced to 0.9, the air volume and the pressure head are continuously reduced, the efficiency of the whole machine is further reduced, and the integral efficiency cannot be ensured.
The fairing structure 5 has first and second opposing sides, the first side facing the heat exchanger 3 and the second side facing the fan assembly 4. When the outlet air of the fan assembly 4 faces the heat exchanger 3, the air blown out by the fan assembly 4 sequentially passes through the second side surface and the first side surface and then reaches the heat exchanger 3; when the inlet air of the fan assembly 4 faces the heat exchanger 3, the air at the heat exchanger 3 sequentially passes through the first side surface and the second side surface and then reaches the fan assembly 4. When the gas contacts the first side surface or the second side surface, the gas can be naturally dispersed under the action of resistance, so that the corresponding side surfaces of the rectifying structures 5 are uniformly paved as far as possible, and the aim of uniformly dispersing the gas flow is fulfilled.
The rectifying structure 5 is provided with a plurality of through holes 51, and the air flow in the air duct 2 passes through the rectifying structure 5 through the through holes 51. Wherein one end of the through hole 51 is located on the first side and the other end is located on the second side, thereby enabling an air flow to penetrate the fairing 5 through the through hole 51. The through holes can divide the air flow into a plurality of small units, so that the noise of the air flow is reduced.
The diameter d1 of the through hole 51 is within the range of 3mm to 6mm of d 1.
The air duct machine of the embodiment is subjected to a simulation test, the value of d1 is changed, and the simulation result is as follows:
according to simulation data, when d1 is 4mm, although the air volume and the pressure head do not reach the maximum value, the noise value is minimum; when d1 is increased to 5mm, although the air volume and the pressure head reach the maximum value, the noise value is increased; when d1 continues to increase to 6mm, the air volume and pressure head begin to decrease instead, while the noise value continues to increase; when d1 continues to increase to 7mm, the air volume and the pressure head continue to decrease, and the noise value continues to increase; when d1 is reduced to 3mm, the air quantity and the pressure head start to be reduced, and the noise is increased; when d1 continues to decrease to 2mm, the air volume and pressure head continue to decrease and the noise continues to increase. That is, only when d1 is in the range of 3mm to 5mm, the air volume and head pressure can be kept within reasonable ranges, and the noise level can be acceptable.
The distance d2 between two adjacent through holes 51 is in the range of d2 to 8mm, wherein the distance d2 is more than or equal to 4 mm.
The air duct machine of the embodiment is subjected to simulation test, the value of d2 is changed, and the simulation result is as follows:
according to simulation data, when d2 is 6mm, the air quantity and the pressure head reach the maximum value, and the noise value is the minimum; when d2 increases to 8mm, the air volume and pressure head begin to decrease, but the noise level begins to increase; when d2 continues to increase to 9mm, the air volume and pressure head begin to decrease instead, while the noise level continues to increase; when d2 is reduced to 5mm, the air volume and the pressure head start to be reduced, and the noise is increased on the contrary; when d2 continues to decrease to 4mm, the air volume and the pressure head continue to decrease, and the noise continues to increase. I.e. only when d2 is in the range of 5mm to 8mm, the air flow and head can be kept within reasonable ranges, while the noise level can be made acceptable.
The rectifying structure 5 comprises a rectifying plate, and the thickness b of the rectifying plate is within the range of 0.6mm and 2 mm.
The air duct machine of the embodiment is subjected to a simulation test, the numerical value of b is changed, and the simulation result is as follows:
according to simulation data, when b is 1mm, although the maximum value is not reached, the noise value is minimum; when b is increased to 1.4mm, although the air quantity and the pressure head reach the maximum value, the noise value is increased; when b is continuously increased to 2mm, the air quantity and the pressure head start to be reduced, and the noise value is still higher than that when b is 1mm although the noise value starts to be reduced; when the b is continuously increased to 2.2mm, although the noise value is continuously reduced, the air quantity and the pressure head cannot meet the design requirement; when b is reduced to 0.6mm, the air quantity and the pressure head start to be reduced, and the noise is increased; when b is continuously reduced to 0.4mm, the air quantity and the pressure head are continuously reduced, and the noise is continuously increased. That is, only when b is in the range of 0.6mm to 1.4mm, the air volume and the pressure head can be kept in a reasonable range, and the noise value can reach an acceptable level.
And a sealing element is arranged between the rectifying structure 5 and the inner surface of the air duct 2, and the airflow between the heat exchanger 3 and the fan assembly 4 completely flows through the rectifying structure 5. The rectifying effect of the rectifying structure 5 is ensured.
The seal comprises a sponge.
A lower air port and a side air port are arranged on the shell 1; in the heating mode of the air pipe machine, the lower air port is an air outlet, and the side air port is an air inlet; and the air pipe machine is in a refrigeration mode, the lower air inlet is an air inlet, and the side air inlet is an air outlet.
Under the heating mode, the air current enters into the tuber pipe built-in from the side tuyere, carry out the heat transfer with heat exchanger 3 behind fan subassembly 4, because the air-out of fan subassembly 4 blows to heat exchanger 3 through rectification structure 5, make the air-out of fan subassembly 4 can be more even blow to heat exchanger 3 under the effect of rectification structure 5, thereby guarantee that every position department of heat exchanger 3 all can reach optimum heat transfer effect basically, rectification structure 5 can also avoid the air-out of fan subassembly 4 directly to blow to the fin on heat exchanger 3 and the noise production simultaneously, thereby realize the purpose that reduces the tuber pipe machine noise.
Under the refrigeration mode, the air current is from the leeward mouth entering air pipe machine in, after the air current got into air pipe machine from leeward mouth, need carry out 90 degrees turn to, this moment, the air current after the heat exchanger 3 of flowing through is not direct towards fan subassembly 4 but there is an tilt up's angle relative to the horizontal plane, this kind of tilt up's air current is unfavorable for fan subassembly 4's air inlet, and set up rectification structure 5 and can become the level towards fan subassembly 4's air current with this tilt up's air current rectification, thereby make things convenient for fan subassembly 4's air inlet.
The fan assembly 4 is arranged between the side air inlet and the heat exchanger 3, namely the fan assembly 4 and the heat exchanger 3 are arranged horizontally relatively, so that the thickness of the shell 1 is effectively reduced.
The fan assembly 4 is rotatably disposed within the housing 1. Through the rotation of fan subassembly 4, make the tuber pipe machine can satisfy the effect that horizontal air-out waterfall formula refrigeration and vertical air-out heat fast simultaneously.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An air duct machine is characterized in that: the method comprises the following steps:
the air conditioner comprises a shell (1), wherein an air duct (2) is formed in the shell (1), and a heat exchanger (3) and a fan assembly (4) are arranged in the air duct (2);
the rectifying structure (5) is arranged in the air duct (2), and the rectifying structure (5) is positioned between the heat exchanger (3) and the fan assembly (4);
the ratio of the minimum distance L1 from the rectifying structure (5) to the heat exchanger (3) to the minimum distance L2 from the rectifying structure (5) to the fan assembly (4) is in the range of 1-L1/L2-1.4.
2. The ducted air conditioner of claim 1, wherein: the rectifying structure (5) has opposite first and second sides, the first side facing the heat exchanger (3) and the second side facing the fan assembly (4).
3. The ducted air conditioner of claim 1, wherein: the rectifying structure (5) is provided with a plurality of through holes (51), and airflow in the air duct passes through the rectifying structure (5) through the through holes (51).
4. The ducted air conditioner of claim 3, wherein: the diameter d1 of the through hole (51) is more than or equal to 3mm and less than or equal to d1 and less than or equal to 6 mm.
5. The ducted air conditioner of claim 3, wherein: the range of the distance d2 between two adjacent through holes (51) is more than or equal to 4mm and less than or equal to d2 and less than or equal to 8 mm.
6. The ducted air conditioner of claim 1, wherein: the rectifying structure (5) comprises a rectifying plate, and the thickness b of the rectifying plate is within the range of 0.6mm and 2 mm.
7. The ducted air conditioner of claim 1, wherein: and a sealing element is arranged between the rectifying structure (5) and the inner surface of the air duct (2), and the airflow between the heat exchanger (3) and the fan assembly (4) completely flows through the rectifying structure (5).
8. The ducted air conditioner of claim 7, wherein: the seal comprises a sponge.
9. The ducted air conditioner of claim 1, wherein: a lower air port and a side air port are arranged on the shell (1);
in the heating mode of the air pipe machine, the lower air opening is an air outlet, and the side air opening is an air inlet;
and the air pipe machine is in a refrigeration mode, the lower air inlet is an air inlet, and the side air inlet is an air outlet.
10. The ducted air conditioner of claim 9, wherein: the fan assembly is arranged between the side air inlet and the heat exchanger (3); and/or the fan assembly (4) is rotatably arranged in the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584082.3A CN114923277A (en) | 2022-05-27 | 2022-05-27 | Air duct machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584082.3A CN114923277A (en) | 2022-05-27 | 2022-05-27 | Air duct machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114923277A true CN114923277A (en) | 2022-08-19 |
Family
ID=82810637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210584082.3A Pending CN114923277A (en) | 2022-05-27 | 2022-05-27 | Air duct machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114923277A (en) |
-
2022
- 2022-05-27 CN CN202210584082.3A patent/CN114923277A/en active Pending
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