CN213395729U - Fresh air unit mixes frostproofing device of wind - Google Patents
Fresh air unit mixes frostproofing device of wind Download PDFInfo
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- CN213395729U CN213395729U CN202022478241.0U CN202022478241U CN213395729U CN 213395729 U CN213395729 U CN 213395729U CN 202022478241 U CN202022478241 U CN 202022478241U CN 213395729 U CN213395729 U CN 213395729U
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- indoor return
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- 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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Abstract
The utility model discloses a fresh air unit mixes frostproofing device of wind, including the new trend wind channel be equipped with the filter house in the new trend wind channel in proper order, the frostproofing section of heat recovery, table cold/heating section, humidification section, fan section, the frostproofing section one side of heat recovery is equipped with indoor return air entry, and the opposite side is equipped with indoor return air export, is equipped with the heat exchange core in the frostproofing section of heat recovery, the top in new trend wind channel is opened there is the new trend entry, and the end is opened there is the new trend export, the center line of new trend entry, new trend export and the center line mutually perpendicular of indoor return air entry, indoor return air export. This device simple structure, washing and change heat exchange core convenience improve fresh air handling unit's air inlet temperature through indoor return air, reach and prevent to freeze the purpose, effectively solve the new trend system in the cold area's in the north restriction of use.
Description
Technical Field
The utility model relates to a fresh air handling unit technical field, concretely relates to fresh air handling unit mixes frostproofing device of wind.
Background
With the development of social economy, the environmental requirements of people on life and work are higher and higher, especially the freshness of indoor air; in order to improve the quality of the indoor air environment, the best mode is to send the outdoor fresh air to the indoor after being processed, so that the indoor has sufficient fresh air; outdoor temperature is higher in summer, and indoor ventilation can be through opening window or fresh air handling unit send into the problem that can solve indoor new trend with the new trend indoor.
The existing fresh air handling unit is always provided with a heat recovery device, so that the cold and heat energy recovery effect of cold and hot air is realized, and the energy-saving effect is achieved. However, when the fresh air system runs in winter in northern cold areas, because the temperature of outdoor fresh air is lower than zero, cold air directly contacts with the heat exchange coil, and the heat exchange coil has the problem of frost cracking, so that the use of the fresh air system in northern cold areas is limited.
SUMMERY OF THE UTILITY MODEL
For solving prior art and having above-mentioned problem, this application provides a fresh air handling unit mixes frostproofing device of wind, and it improves fresh air handling unit's air inlet temperature through indoor return air, reaches and prevents freezing purpose, the energy saving.
In order to achieve the purpose, the technical scheme of the application is as follows: the fresh air unit air mixing and freezing prevention device comprises a fresh air duct, wherein a filtering section, a heat recovery freezing prevention section, a surface cooling/heating section, a humidifying section and a fan section are sequentially arranged in the fresh air duct, one side of the heat recovery freezing prevention section is provided with an indoor return air inlet, the other side of the heat recovery freezing prevention section is provided with an indoor return air outlet, a heat exchange core is arranged in the heat recovery freezing prevention section, a fresh air inlet is arranged at the starting end of the fresh air duct, a fresh air outlet is arranged at the tail end of the fresh air duct, and a central connecting line of the fresh air inlet and the fresh air outlet is mutually perpendicular to a central connecting line of the.
Furthermore, the indoor return air inlet is connected with the total heat exchanger, and the indoor return air outlet is led out to the outside through the exhaust pipe.
Furthermore, a cleaning and replacing door is arranged on the shell of the heat recovery anti-freezing section.
Furthermore, an air filter is arranged in the filtering section and is positioned at the head part of the fresh air duct.
Furthermore, a surface cooling/heating coil is arranged in the surface cooling/heating section, one side of the surface cooling/heating coil is connected with a cold water inlet pipe and a cold water outlet pipe, and the other side of the surface cooling/heating coil is connected with a hot water inlet pipe and a hot water outlet pipe.
Furthermore, a plurality of humidifiers are arranged in the humidifying section.
Furthermore, the fan section is provided with an air supply fan, and the air supply fan is positioned at the tail part of the fresh air duct.
The utility model discloses owing to adopt above technical scheme, can gain following technological effect: the device has simple structure and convenient cleaning and replacement of the heat exchange core, improves the air inlet temperature of the fresh air handling unit through indoor return air, achieves the aim of preventing freezing, and effectively solves the use limit of a fresh air system in northern cold areas; by utilizing the principle that indoor return air is combined with a total heat exchanger, the indoor return air and the outdoor fresh air independent air channel carry out heat exchange, the heat recovery efficiency can be ensured to the maximum extent, and the energy-saving effect is achieved.
Drawings
FIG. 1 is a schematic structural view of a device for mixing air and preventing freezing for a fresh air handling unit;
FIG. 2 is a schematic diagram of a heat recovery freeze protection section.
The sequence numbers in the figures illustrate: 1. a filtration section; 2. a heat recovery anti-freezing section; 3. an indoor return air inlet; 4. surface cooling/heating coils; 5. a humidification stage; 6. a fan section; 7. an air supply fan; 8. a humidifier; 9. a surface cooling/heating section; 10. an indoor return air outlet; 11. an air filter; 12. a fresh air inlet; 13. a fresh air outlet; 14. and a heat exchange core.
Detailed Description
The embodiment of the present invention is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are provided, but the present invention is not limited to the following embodiments.
Example 1
As shown in fig. 1-2, the present embodiment provides a device for mixing air and preventing freezing for a fresh air handling unit, which includes a fresh air duct, a filtering section, a heat recovery anti-freezing section, a surface cooling/heating section, a humidifying section and a fan section are sequentially arranged in the fresh air duct, one side of the heat recovery anti-freezing section is provided with an indoor return air inlet, the other side is provided with an indoor return air outlet, a heat exchange core is arranged in the heat recovery anti-freezing section, a fresh air inlet is arranged at the initial end of the fresh air duct, a fresh air outlet is arranged at the tail end of the fresh air duct, the central connecting line of the fresh air inlet and the fresh air outlet is mutually vertical to the central connecting line of the indoor return air inlet and the indoor return air outlet, namely, the vertical junction of the fresh air duct and the traditional return air duct is a heat recovery anti-freezing section, so that the fresh air and the return air directly exchange heat in the heat recovery anti-freezing section, the heat recovery efficiency can be ensured to the maximum extent, and the energy-saving effect is achieved; the indoor return air inlet is connected with the total heat exchanger, and the indoor return air outlet is led out to the outside through the exhaust pipe.
In order to clean and replace the heat exchange core conveniently, a cleaning and replacing door is arranged on the shell of the heat recovery anti-freezing section.
An air filter is arranged in the filtering section and is positioned at the head part of the fresh air duct. The surface cooling/heating section is internally provided with a surface cooling/heating coil, one side of the surface cooling/heating coil is connected with a cold water inlet pipe and a cold water outlet pipe, and the other side of the surface cooling/heating coil is connected with a hot water inlet pipe and a hot water outlet pipe. A plurality of humidifiers are arranged in the humidifying section. The fan section is provided with an air supply fan, and the air supply fan is positioned at the tail part of the fresh air duct.
The above, only for the utility model discloses create the concrete implementation way of preferred, nevertheless the utility model discloses the protection scope of creation is not limited to this, and any person skilled in this technical field is in the utility model discloses create the technical scope of disclosure, according to the utility model discloses the technical scheme of creation and utility model design equivalence replacement or change all should be covered in the protection scope of creation of the utility model.
Claims (7)
1. The fresh air unit air mixing and freezing prevention device is characterized by comprising a fresh air duct, wherein a filtering section, a heat recovery freezing prevention section, a surface cooling/heating section, a humidifying section and a fan section are sequentially arranged in the fresh air duct, one side of the heat recovery freezing prevention section is provided with an indoor return air inlet, the other side of the heat recovery freezing prevention section is provided with an indoor return air outlet, a heat exchange core is arranged in the heat recovery freezing prevention section, the start end of the fresh air duct is provided with a fresh air inlet, the tail end of the fresh air duct is provided with a fresh air outlet, and the central connecting line of the fresh air inlet and the fresh air outlet is mutually perpendicular to the central connecting line of the indoor.
2. The air mixing and freeze-proofing device of the fresh air handling unit as claimed in claim 1, wherein the indoor return air inlet is connected to the total heat exchanger, and the indoor return air outlet is led out to the outside through an exhaust duct.
3. The fresh air handling unit air mixing anti-freezing device as claimed in claim 1, wherein the shell of the heat recovery anti-freezing section is provided with a cleaning and replacing door.
4. The fresh air handling unit air mixing anti-freezing device as claimed in claim 1, wherein an air filter is disposed in the filtering section, and the air filter is located at the head of the fresh air duct.
5. The fresh air handling unit air mixing anti-freezing device according to claim 1, wherein a surface cooling/heating coil is arranged in the surface cooling/heating section, one side of the surface cooling/heating coil is connected with a cold water inlet pipe and a cold water outlet pipe, and the other side of the surface cooling/heating coil is connected with a hot water inlet pipe and a hot water outlet pipe.
6. The fresh air handling unit air mixing and freeze preventing device of claim 1, wherein a plurality of humidifiers are disposed in the humidification section.
7. The fresh air handling unit air mixing anti-freezing device as claimed in claim 1, wherein the fan section is provided with a supply fan, and the supply fan is located at the tail of the fresh air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022478241.0U CN213395729U (en) | 2020-10-30 | 2020-10-30 | Fresh air unit mixes frostproofing device of wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022478241.0U CN213395729U (en) | 2020-10-30 | 2020-10-30 | Fresh air unit mixes frostproofing device of wind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213395729U true CN213395729U (en) | 2021-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022478241.0U Active CN213395729U (en) | 2020-10-30 | 2020-10-30 | Fresh air unit mixes frostproofing device of wind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213395729U (en) |
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2020
- 2020-10-30 CN CN202022478241.0U patent/CN213395729U/en active Active
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