CN220205903U - Central air conditioner fresh air unit - Google Patents
Central air conditioner fresh air unit Download PDFInfo
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- CN220205903U CN220205903U CN202321645952.XU CN202321645952U CN220205903U CN 220205903 U CN220205903 U CN 220205903U CN 202321645952 U CN202321645952 U CN 202321645952U CN 220205903 U CN220205903 U CN 220205903U
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- air
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 56
- 239000007921 spray Substances 0.000 claims description 14
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 206010011409 Cross infection Diseases 0.000 description 4
- 206010029803 Nosocomial infection Diseases 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 241000700605 Viruses Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000022 bacteriostatic agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Central Air Conditioning (AREA)
Abstract
The utility model discloses a centralized air conditioner fresh air handling unit which is provided with an air supply channel, an air exhaust channel and a heat exchange filter core for exchanging air supply and air exhaust heat, wherein a heat exchange sub-air channel and a bypass sub-air channel are arranged in the air supply channel, a main body of the heat exchange filter core is arranged in the heat exchange sub-air channel, an air inlet and an air outlet of the heat exchange filter core are arranged in the air exhaust channel, an air supply bypass valve is arranged in the bypass sub-air channel and used for controlling the opening and the closing of the bypass sub-air channel, and an air exhaust bypass valve is arranged in the air exhaust channel and is arranged between the air inlet and the air outlet of the heat exchange filter core, so that when the air exhaust bypass valve is opened, the air inlet and the air outlet of the heat exchange filter core are directly communicated. According to the centralized air conditioner fresh air unit disclosed by the utility model, the fresh air and exhaust bypass valve is added, the bypass valve is opened in a transitional season, the wind resistance is reduced, and the energy consumption of the system is reduced.
Description
Technical Field
The utility model relates to a centralized air conditioner fresh air unit, and belongs to the technical field of air conditioning equipment.
Background
In the fresh air system, the air conditioner fresh air unit adjusts the temperature and humidity of fresh air generated by a fresh air host, and the adjusted fresh air is conveyed to an air conditioner tail end fan and is conveyed indoors by the air conditioner tail end fan.
In order to save energy consumption, a heat exchange filter element is generally arranged in the air conditioner fresh air unit, and indoor exhaust air and indoor fresh air are subjected to heat exchange through the heat exchange filter element, for example, chinese patent application number is CN 201621099961.3.
In both summer and winter, energy consumption can be reduced by heat exchange, however, in transitional seasons, the temperature difference between indoor air and fresh air entering the room is small, and the heat exchange filter element prevents air fluidity, so that energy consumption is increased.
In addition, the existing heat exchange filter element is difficult to completely isolate exhaust air from fresh air, and an air conditioner fresh air unit is equipment for providing fresh air for different air conditioner tail end fans, so that cross infection is easy to occur under the condition of epidemic situation.
The existing air conditioner fresh air unit also has the problem that bacteria are easy to breed in a humidifier, so that fresh air pollution is caused.
Therefore, further research on the existing fresh air handling unit is necessary to solve the above problems.
Disclosure of Invention
In order to overcome the problems, through intensive research, a centralized air conditioner fresh air unit is provided with an air supply channel, an air exhaust channel and a heat exchange filter element for exchanging air supply heat and air exhaust heat,
a heat exchange sub-air duct and a bypass sub-air duct are arranged in the air supply channel, the main body of the heat exchange filter element is arranged in the heat exchange sub-air duct, the air inlet and the air outlet of the heat exchange filter element are arranged in the air exhaust channel,
an air supply bypass valve is arranged in the bypass sub-air duct and used for controlling the opening and closing of the bypass sub-air duct,
an exhaust bypass valve is arranged in the exhaust channel and is arranged between the air inlet and the air outlet of the heat exchange filter element, so that when the exhaust bypass valve is opened, the air inlet and the air outlet of the heat exchange filter element are directly communicated.
In a preferred embodiment, a humidifier, a surface cooler, and a heater are provided in the air supply passage.
In a preferred embodiment, the surface cooler and the heater are arranged in the heat exchange sub-air duct.
In a preferred embodiment, the humidifier includes a wet membrane, a reservoir, a water pump and a spray head, the water pump pumping water from the reservoir to the spray head, the spray head spraying water onto the wet membrane such that the humidity of air passing through the wet membrane increases.
In a preferred embodiment, the water storage tank is arranged at the lower end of the wet film and used for collecting water drops falling from the wet film;
the water storage tank is internally provided with a float valve which is connected with a water supplementing pipe, when the water level in the water storage tank is reduced to below a preset height, the float valve is opened to supplement water for the water storage tank, and when the water level in the water storage tank is increased to the preset height, the float valve is closed to stop supplementing water.
In a preferred embodiment, fans are provided in both the supply air duct and the exhaust air duct.
In a preferred embodiment, a fresh air filter is provided at the air inlet of the air supply duct
In a preferred embodiment, a return air filter is provided at the air inlet of the air discharge channel
In a preferred embodiment, a plasma sterilization module is disposed in the air supply duct.
In a preferred embodiment, a valve is provided at the inlet of the air supply duct and a valve is provided at the outlet of the air exhaust duct.
The utility model has the beneficial effects that:
(1) The fresh air and exhaust bypass valve is added, the bypass valve is opened in transition season, the wind resistance is reduced, and the energy consumption of the system is reduced;
(2) The humidifier can automatically collect the water in the water storage tank, so that the humidifying effect can be ensured and the waste is avoided;
(3) The plasma sterilization module is arranged, so that various moulds and viruses can be effectively killed, and cross infection during epidemic situations and fresh air pollution caused by bacteria breeding can be effectively prevented.
Drawings
Fig. 1 is a schematic structural view showing a fresh air handling unit of a centralized air conditioner according to a preferred embodiment of the present utility model;
FIG. 2 illustrates a cooling and heating season operation of a centralized air conditioning fresh air handling unit according to a preferred embodiment of the present utility model;
FIG. 3 illustrates a transitional season operation of a centralized air conditioning fresh air handling unit according to a preferred embodiment of the present utility model;
fig. 4 is a schematic view showing a structure of a humidifier in a fresh air handling unit of a centralized air conditioner according to a preferred embodiment of the present utility model.
Reference numerals illustrate:
1-an air supply channel;
2-an exhaust channel;
3-a heat exchange cartridge;
4-a humidifier;
5-a surface cooler;
6-a heater;
11-a heat exchange sub-air duct;
12-bypass sub-duct;
13-a fresh air filter;
14-a plasma sterilization module;
21-an exhaust bypass valve;
22-return air filter;
41-wet film;
42-a water storage tank;
43-water pump;
44-spray head;
45-float valve;
121-blow-by bypass valve.
Detailed Description
The utility model is further described in detail below by means of the figures and examples. The features and advantages of the present utility model will become more apparent from the description.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The utility model provides a centralized air conditioner fresh air unit, which is provided with an air supply channel 1, an air exhaust channel 2, a heat exchange filter element 3 for exchanging air supply and air exhaust heat, as shown in figure 1,
a heat exchange sub-air duct 11 and a bypass sub-air duct 12 are arranged in the air supply channel 1, the main body of the heat exchange filter element 3 is arranged in the heat exchange sub-air duct 11, the air inlet and the air outlet of the heat exchange filter element 3 are arranged in the air exhaust channel 2,
an air supply bypass valve 121 is arranged in the bypass sub-air duct 12 and is used for controlling the opening and closing of the bypass sub-air duct 12,
an exhaust bypass valve 21 is arranged in the exhaust passage 2, and the exhaust bypass valve 21 is arranged between the air inlet and the air outlet of the heat exchange filter element 3, so that when the exhaust bypass valve 21 is opened, the air inlet and the air outlet of the heat exchange filter element 3 are directly communicated.
The traditional air conditioner fresh air unit is forced to exchange heat whenever in seasons, however, when in transition seasons, the temperature difference between indoor air and fresh air entering the indoor is very small, heat exchange is not practical, forced air passes through a heat exchange filter element, air flowability can be hindered, wind resistance is improved, the fresh air system needs to provide additional power to improve the air flowability, and therefore the overall energy consumption of the system is increased.
In the utility model, by adding the bypass sub-air duct 12 and the exhaust bypass valve 21, the air conditioning fresh air unit can determine whether to perform heat exchange according to actual use requirements.
Specifically, when the air conditioner is used in winter and summer, the air exhaust bypass valve 21 is closed and return air enters the heat exchange filter element 3 by adopting a cooling/heating season operation mode; the air supply bypass valve 121 is closed, the air supply bypass valve 121 is not opened, fresh air passes through the heat exchange sub-air duct 11, and the heat exchange filter element works normally to exchange heat between the return air and the fresh air, as shown in fig. 2.
When the air conditioner is operated in spring and autumn, the air exhaust bypass valve 21 is opened, and return air does not enter the heat exchange filter element 3 any more, and the heat exchange filter element does not work at the moment; the air supply bypass valve 121 is opened, and fresh air mainly passes through the bypass sub-air duct 12, so that wind resistance is reduced, and the overall energy consumption of the system is reduced, as shown in fig. 3.
Furthermore, when epidemic situation occurs, the return air and the fresh air can be completely isolated by closing the heat exchange process, so that cross infection is avoided.
In a preferred embodiment, a humidifier 4, a surface cooler 5, and a heater 6 are provided in the air supply duct 1.
The surface cooler is a common heat exchange device, the principle is that heat medium or refrigerant or refrigerating working medium flows through the inner cavity of the metal pipeline, and air to be treated flows through the outer wall of the metal pipeline to perform heat exchange so as to achieve the purpose of heating or cooling the air.
In the present utility model, the specific heating mode and model of the heater are not limited as long as the air temperature can be increased.
In a preferred embodiment, the surface cooler 5 and the heater 6 are arranged in the heat exchanging sub-air duct 11, and the cooling/heating season is provided, and the cooling capacity/heat is supplemented after heat exchange, so that the temperature of fresh air entering the room is consistent with the temperature of air in the room.
In a preferred embodiment, the humidifier 4 includes a wet film 41, a water storage tank 42, a water pump 43 and a spray head 44, the water pump 43 pumps water from the water storage tank 42 to the spray head 44, and the spray head 44 sprays water onto the wet film 41, so that the humidity of the air passing through the wet film 41 increases, as shown in fig. 4.
The wet film is also called as 'Saik', is a common device in a humidifier, is of a corrugated plate-shaped structure, contains a slow-release bacteriostatic agent, and has the advantages of extremely strong water absorption, good self-cleaning capability, no toxicity, acid and alkali resistance, mold resistance, flame retardance and the like.
Further preferably, the water storage tank 42 is arranged at the lower end of the wet film 41, and collects water drops dropped from the wet film 41;
the water storage tank 42 is provided with a float valve 45, the float valve 45 is connected with a water supplementing pipe, when the water level in the water storage tank 42 is reduced below a preset height, the float valve 45 is opened to supplement water for the water storage tank 42, and when the water level in the water storage tank 42 is increased to the preset height, the float valve 45 is closed to stop supplementing water.
The mechanism ensures the humidification amount, and if the water quantity of the spray head is too large, the spray head can be automatically collected into the water storage tank, so that the humidification effect can be ensured and the waste is avoided.
In a preferred embodiment, fans are provided in both the supply duct 1 and the exhaust duct 2 for increasing the air flow rate.
In a preferred embodiment, a fresh air filter 13 is provided at the air inlet of the air supply duct 1. More preferably, a G4 filter screen and an F9 filter screen are used as the fresh air filter 13.
In a preferred embodiment, a return air filter 22 is provided at the air inlet position of the air discharge duct 2, and more preferably, a G4 filter screen is used as the return air filter 22.
In a preferred embodiment, a plasma sterilization module 14 is arranged in the air supply channel 1 to sterilize fresh air entering a room, so that various mold and viruses can be effectively killed, and cross infection during epidemic situation and fresh air pollution caused by bacteria are effectively prevented. The ion sterilization module is a common sterilization module, and in the utility model, the specific structure is not repeated, and any finished product module on the market can be adopted by a person skilled in the art.
In a preferred embodiment, a valve is provided at the inlet of the air supply duct 1 and a valve is provided at the outlet of the air discharge duct 2.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "front", "rear", etc. are based on the positional or positional relationship in the operation state of the present utility model, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model has been described above in connection with preferred embodiments, which are, however, exemplary only and for illustrative purposes. On this basis, the utility model can be subjected to various substitutions and improvements, and all fall within the protection scope of the utility model.
Claims (10)
1. A centralized air conditioner fresh air unit, which is provided with an air supply channel (1) and an air exhaust channel (2), and is also provided with a heat exchange filter element (3) for exchanging air supply and air exhaust heat, and is characterized in that,
a heat exchange sub-air duct (11) and a bypass sub-air duct (12) are arranged in the air supply channel (1), the main body of the heat exchange filter element (3) is arranged in the heat exchange sub-air duct (11), the air inlet and the air outlet of the heat exchange filter element (3) are arranged in the air exhaust channel (2),
an air supply bypass valve (121) is arranged in the bypass sub-air duct (12) and is used for controlling the opening and closing of the bypass sub-air duct (12),
an exhaust bypass valve (21) is arranged in the exhaust channel (2), and the exhaust bypass valve (21) is arranged between the air inlet and the air outlet of the heat exchange filter element (3), so that when the exhaust bypass valve (21) is opened, the air inlet and the air outlet of the heat exchange filter element (3) are directly communicated.
2. The concentrated air conditioner fresh air handling unit of claim 1, wherein,
a humidifier (4), a surface cooler (5) and a heater (6) are arranged in the air supply channel (1).
3. The concentrated air conditioner fresh air handling unit of claim 2, wherein,
the surface cooler (5) and the heater (6) are arranged in the heat exchange sub-air duct (11).
4. The concentrated air conditioner fresh air handling unit of claim 2, wherein,
the humidifier (4) comprises a wet film (41), a water storage tank (42), a water pump (43) and a spray head (44), wherein the water pump (43) pumps water into the spray head (44) from the water storage tank (42), and the spray head (44) sprays the water onto the wet film (41) so that the humidity of air passing through the wet film (41) is increased.
5. The concentrated air conditioner fresh air handling unit of claim 4, wherein,
the water storage tank (42) is arranged at the lower end of the wet film (41) and is used for collecting water drops falling from the wet film (41);
a float valve (45) is arranged in the water storage tank (42), the float valve (45) is connected with a water supplementing pipe, when the water level in the water storage tank (42) is reduced to be lower than a preset height, the float valve (45) is opened to supplement water for the water storage tank (42), and when the water level in the water storage tank (42) is increased to the preset height, the float valve (45) is closed to stop supplementing water.
6. The concentrated air conditioner fresh air handling unit of claim 1, wherein,
fans are arranged in the air supply channel (1) and the air exhaust channel (2).
7. The concentrated air conditioner fresh air handling unit of claim 1, wherein,
a fresh air filter (13) is arranged at the air inlet of the air supply channel (1).
8. The concentrated air conditioner fresh air handling unit of claim 1, wherein,
an air return filter (22) is arranged at the air inlet of the air exhaust channel (2).
9. The concentrated air conditioner fresh air handling unit of claim 1, wherein,
a plasma sterilization module (14) is arranged in the air supply channel (1).
10. The concentrated air conditioner fresh air handling unit of claim 1, wherein,
the air inlet of the air supply channel (1) is provided with a valve, and the air outlet of the air exhaust channel (2) is provided with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321645952.XU CN220205903U (en) | 2023-06-27 | 2023-06-27 | Central air conditioner fresh air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321645952.XU CN220205903U (en) | 2023-06-27 | 2023-06-27 | Central air conditioner fresh air unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220205903U true CN220205903U (en) | 2023-12-19 |
Family
ID=89154578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321645952.XU Active CN220205903U (en) | 2023-06-27 | 2023-06-27 | Central air conditioner fresh air unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220205903U (en) |
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2023
- 2023-06-27 CN CN202321645952.XU patent/CN220205903U/en active Active
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