CN215372819U - High-efficient passive form new trend heat exchange device - Google Patents
High-efficient passive form new trend heat exchange device Download PDFInfo
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- CN215372819U CN215372819U CN202121135023.5U CN202121135023U CN215372819U CN 215372819 U CN215372819 U CN 215372819U CN 202121135023 U CN202121135023 U CN 202121135023U CN 215372819 U CN215372819 U CN 215372819U
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Abstract
The utility model belongs to the technical field of heat exchange, and particularly relates to a high-efficiency passive fresh air heat exchange device. The high-efficiency passive fresh air heat exchange device comprises a shell, an outdoor air inlet, an outdoor air outlet, a fan, an indoor air outlet, a heat exchange unit, an outdoor air outlet and an indoor air overflow port, wherein the front end of the heat exchange unit is connected with the outdoor air inlet, the annular wall of the heat exchange unit is provided with at least one outdoor air outlet, and the rear end of the heat exchange unit is connected with the indoor air overflow port. The efficient passive fresh air heat exchange device is high in comprehensive energy efficiency and simple and convenient to install, and can meet the installation and heat efficiency requirements of different occasions by adopting fresh air fans with different air volumes and air pipes with different lengths to match with each other according to different installation requirements aiming at different indoor spaces.
Description
Technical Field
The utility model belongs to the technical field of heat exchange, and particularly relates to a high-efficiency passive fresh air heat exchange device which is suitable for various fresh air devices or equipment adopting passive heat exchange.
Background
At present, various fresh air devices or equipment usually adopt an active or passive heat exchange device to reduce heat loss and energy consumption, however, because the common fresh air devices or equipment only have a single air inlet and outlet, the wind speed is very high, reaching several meters to dozens of meters per second, the heat exchange efficiency is lower, and the air inlet and outlet resistance is increased, thereby further increasing the energy consumption.
Disclosure of Invention
The utility model provides a high-efficiency passive fresh air heat exchange device, which aims to solve at least one of the technical problems in the prior art to a certain extent.
The utility model is realized by the following steps:
a high-efficiency passive fresh air heat exchange device comprises a shell, an outdoor air inlet, an outdoor air outlet, a fan, an indoor air outlet, a heat exchange unit, an outdoor air outlet and an indoor air overflow port, wherein the front end of the heat exchange unit is connected with the outdoor air inlet, the annular wall of the heat exchange unit is provided with at least one outdoor air outlet, and the rear end of the heat exchange unit is connected with the indoor air overflow port.
The technical scheme adopted by the embodiment of the utility model also comprises the following steps: the heat exchange unit comprises an external air pipe and a heat exchange medium.
The technical scheme adopted by the embodiment of the utility model also comprises the following steps: the heat exchange medium is aluminum alloy, and the thermal conductivity of the aluminum alloy is 121-151W/mK.
The technical scheme adopted by the embodiment of the utility model also comprises the following steps: and c, carrying out topdressing on the outdoor air inlet amount not more than 80 m/h.
The technical scheme adopted by the embodiment of the utility model also comprises the following steps: the effective heat exchange length of the heat exchange medium is more than or equal to 200mm, and the diameter of the heat exchange medium is more than or equal to 100 mm.
Compared with the prior art, the utility model has the beneficial effects that: the efficient passive fresh air heat exchange device is high in comprehensive energy efficiency and simple and convenient to install, and can meet the installation and heat efficiency requirements of different occasions by adopting fresh air fans with different air volumes and air pipes with different lengths to match with each other according to different installation requirements aiming at different indoor spaces.
Drawings
FIG. 1 is a schematic view of the overall high efficiency passive fresh air heat exchange device of the present invention;
fig. 2 is a schematic structural diagram of a heat exchange unit of the efficient passive fresh air heat exchange device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 and 2, fig. 1 is an overall schematic view of the efficient passive fresh air heat exchange device of the present invention, and fig. 2 is a schematic view of a heat exchange unit of the efficient passive fresh air heat exchange device of the present invention. The utility model relates to a high-efficiency passive fresh air heat exchange device which comprises a shell (not shown), an outdoor air inlet 1, an outdoor air outlet 2, a heat exchange unit 3, an indoor air overflow port 4, a backflow-preventing fan blade 5, a primary filter screen 6, a composite filter screen 7, a fan 8 and an indoor air outlet 9. The front end of the heat exchange unit 3 is provided with an outdoor air inlet 1, the annular wall of the heat exchange unit 3 is provided with at least one outdoor air outlet 2, the rear end of the heat exchange unit 3 is connected with an indoor air overflow port 4, the indoor air overflow port 4 is connected with a backflow prevention fan blade 5, a primary filter screen 6 and a composite filter screen 7, the composite filter screen 7 is connected with a fan 8, and the fan 8 is connected with an indoor air outlet 9. The heat exchange unit 3 comprises an external air duct 22 and a heat exchange medium 23.
The high-efficiency passive fresh air heat exchange device takes the case that the indoor temperature is higher than the outdoor temperature as an example, when the indoor air reaches the micro positive pressure, the indoor hot air is discharged from the indoor air overflow port 4 of the device, and exchanges heat with the outdoor cold air through the heat exchange medium 23 in the external air pipe 22, specifically, the air flow direction of the outdoor air entering the indoor is as shown in A in figure 2, and the air flow direction of the indoor air discharged through the heat exchange medium 23 is as shown in B in figure 2. The heat exchange medium 23 of the high-efficiency passive fresh air heat exchange device disclosed by the utility model is tested by adopting aluminum alloy, the heat exchange medium 23 of the high-efficiency passive fresh air heat exchange device disclosed by the utility model comprises but is not limited to aluminum alloy, the heat conductivity of the aluminum alloy is 121-. When the indoor and outdoor temperature difference is more than or equal to 10 ℃, the heat exchange efficiency of the thermometer is more than or equal to 60%, the larger the temperature difference is, the higher the heat exchange efficiency is, and the lower the wind speed is, the small air inlet and outlet resistance is, and the comprehensive energy efficiency is high.
In order to improve the heat exchange efficiency, the air inlet volume of the efficient passive fresh air heat exchange device is less than or equal to 80 m/h, the effective heat exchange length of the heat exchange medium 23 is more than or equal to 200mm, and the diameter of the heat exchange medium is more than or equal to 100mm, so that certain indoor and outdoor air heat exchange is ensured, and different lengths meet the installation requirements of different wall body structures.
The efficient passive fresh air heat exchange device is high in comprehensive energy efficiency and simple and convenient to install, and can meet the installation and heat efficiency requirements of different occasions by adopting fresh air fans with different air volumes and air pipes with different lengths to match with each other according to different installation requirements aiming at different indoor spaces.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The efficient passive fresh air heat exchange device comprises a shell, an outdoor air inlet, an outdoor air outlet, a fan and an indoor air outlet, and is characterized by further comprising a heat exchange unit, the outdoor air outlet and an indoor air overflow port, wherein the front end of the heat exchange unit is connected with the outdoor air inlet, at least one outdoor air outlet is arranged on the annular wall of the heat exchange unit, and the rear end of the heat exchange unit is connected with the indoor air overflow port.
2. The efficient passive fresh air heat exchange device of claim 1, wherein the heat exchange unit comprises an external air duct and a heat exchange medium.
3. The efficient passive fresh air heat exchange device as claimed in claim 2, wherein the heat exchange medium is aluminum alloy, and the thermal conductivity of the aluminum alloy is 121-.
4. The efficient passive fresh air heat exchange device according to claim 1, wherein an air intake rate of the outdoor air inlet is less than or equal to 80 m/h.
5. The efficient passive fresh air heat exchange device according to claim 2, wherein the effective heat exchange length of the heat exchange medium is greater than or equal to 200mm, and the diameter is greater than or equal to 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121135023.5U CN215372819U (en) | 2021-05-25 | 2021-05-25 | High-efficient passive form new trend heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121135023.5U CN215372819U (en) | 2021-05-25 | 2021-05-25 | High-efficient passive form new trend heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215372819U true CN215372819U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121135023.5U Active CN215372819U (en) | 2021-05-25 | 2021-05-25 | High-efficient passive form new trend heat exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215372819U (en) |
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2021
- 2021-05-25 CN CN202121135023.5U patent/CN215372819U/en active Active
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