CN220750313U - Fresh air unit - Google Patents
Fresh air unit Download PDFInfo
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- CN220750313U CN220750313U CN202322435094.2U CN202322435094U CN220750313U CN 220750313 U CN220750313 U CN 220750313U CN 202322435094 U CN202322435094 U CN 202322435094U CN 220750313 U CN220750313 U CN 220750313U
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- fresh air
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- direct expansion
- handling unit
- inlet
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- 238000001816 cooling Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 18
- 238000011084 recovery Methods 0.000 claims description 9
- 238000003303 reheating Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000005684 electric field Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Central Air Conditioning (AREA)
Abstract
The utility model discloses a fresh air unit which is used for improving fresh air temperature regulation force. The fresh air handling unit includes: the parallel channel comprises a surface cooling channel and a first direct expansion channel, wherein the surface cooling channel is provided with an air conditioner cold water pipeline, the first direct expansion channel is connected with a heat pump type external machine, and a compressor and a condenser are arranged in the heat pump type external machine; the fresh air inlet is connected with the inlet of the surface cooling channel and the inlet of the first direct expansion channel in the parallel channel; the inlet of the second direct expansion channel is connected with the outlet of the surface cooling channel and the outlet of the first direct expansion channel respectively, the second direct expansion channel is connected with a single-cooling type external machine, and a compressor and a condenser are arranged in the single-cooling type external machine. According to the utility model, the structure of the fresh air unit is optimized, so that the fresh air temperature adjusting force is improved.
Description
Technical Field
The utility model relates to the field of indoor air quality control, in particular to a fresh air handling unit.
Background
The fresh air unit is equipment capable of adjusting indoor air quality. The fresh air system introduces outdoor fresh air into the room through the fresh air system, and simultaneously discharges indoor polluted air so as to achieve the effect of ventilation. The fresh air unit generally comprises a fan, a heat exchanger, a filter and other components, can provide fresh and clean indoor air environment, effectively remove indoor harmful substances and peculiar smell, keep the balance of air fluidity and humidity, and improve the indoor air quality.
In the prior art, when the fresh air entering the room is regulated in temperature, the fresh air is regulated in cold and hot water through an air conditioner, but only the fresh air of air conditioning equipment is regulated in temperature, the temperature of the fresh air possibly cannot meet the expectations, and therefore, the structure of a fresh air unit needs to be improved and optimized so as to improve the fresh air temperature regulation force.
Disclosure of Invention
The utility model provides a fresh air unit for improving fresh air temperature regulation force, which comprises:
the parallel channel comprises a surface cooling channel and a first direct expansion channel, wherein the surface cooling channel is provided with an air conditioner cold water pipeline, the first direct expansion channel is connected with a heat pump type external machine, and a compressor and a condenser are arranged in the heat pump type external machine;
the fresh air inlet is connected with the inlet of the surface cooling channel and the inlet of the first direct expansion channel in the parallel channel;
the inlet of the second direct expansion channel is connected with the outlet of the surface cooling channel and the outlet of the first direct expansion channel respectively, the second direct expansion channel is connected with a single-cooling type external machine, and a compressor and a condenser are arranged in the single-cooling type external machine.
The utility model has the beneficial effects that: the fresh air unit comprises a parallel channel, wherein the parallel channel comprises a first direct expansion channel connected with a heat pump type external machine, and further comprises a surface cooling channel provided with an air conditioner cold water pipeline, and further comprises a second direct expansion channel connected with a single cold type external machine, so that fresh air temperature can be regulated through the heat pump type external machine, the air conditioner cold water pipeline and the single cold type external machine respectively, and the fresh air temperature regulation force is improved through optimizing the structure of the fresh air unit.
In one embodiment, an electric air valve is arranged in the surface cooling channel and the first direct expansion channel, and the electric air valve is used for controlling the opening and closing of the ventilation function of the surface cooling channel and the first direct expansion channel.
In one embodiment, a fresh air filter section is disposed between the parallel channel and the fresh air inlet.
In one embodiment, the fresh air filter segment comprises a primary filter segment, a multi-segment bipolar electrostatic filter segment and a secondary filter segment.
In one embodiment, the fresh air handling unit further comprises:
a return air inlet;
and the inlet of the return air channel is connected with the return air inlet.
In one embodiment, the return air channel is provided with a return air filter section.
In one embodiment, the fresh air handling unit further comprises:
the air exhaust section is connected with the outlet of the return air channel;
and the return air outlet is connected with the exhaust section.
In one embodiment, the fresh air handling unit further comprises:
and the heat recovery section is arranged between the fresh air filtering section and the parallel channel.
In one embodiment, the fresh air handling unit further comprises:
and the reheating section is arranged between the second direct expansion channel and the fresh air outlet.
In one embodiment, the fresh air handling unit further comprises:
and the wet film humidifying section is arranged between the second direct expansion channel and the fresh air outlet.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a fresh air handling unit according to an embodiment of the present utility model.
Reference numerals illustrate:
101-parallel channels; 1011—surface cooling channels; 1012-a first direct expansion channel; 102-a heat pump type external machine; 103-a fresh air inlet; 104-a second direct expansion channel; 105-single cooling type external machine; 106-an electric air valve; 107-fresh air filtering section; 1071-a primary filtration section; 1072-bipolar electrostatic filtration section; 1073-a neutral filtration section; 108-a return air inlet; 109-return air channel; 110-a return air filtering section; 111-an exhaust section; 112-return air outlet; 113-a heat recovery section; 114-reheating stage; 115-wet membrane humidification stage; 116-fresh air outlet.
Detailed Description
Various aspects and features of the present utility model are described herein with reference to the accompanying drawings.
It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the utility model will occur to persons of ordinary skill in the art.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and, together with a general description of the utility model given above, and the detailed description of the embodiments given below, serve to explain the principles of the utility model.
These and other characteristics of the utility model will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also to be understood that, although the utility model has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the utility model, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present utility model will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the utility model, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the utility model in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present utility model in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the utility model.
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Fig. 1 is a schematic structural diagram of a fresh air handling unit according to an embodiment of the present utility model, as shown in fig. 1, the fresh air handling unit includes:
the parallel channel 101 comprises a surface cooling channel 1011 and a first direct expansion channel 1012, wherein the surface cooling channel 1011 is provided with an air conditioning cold water pipeline, the first direct expansion channel 1012 is connected with the heat pump type external machine 102, and a compressor and a condenser are arranged in the heat pump type external machine 102;
a fresh air inlet 103 connected to the inlet of the air cooling channel 1011 and the inlet of the first direct expansion channel 1012 in the parallel channel 101;
the second direct expansion channel 104, the inlet of the second direct expansion channel 104 is connected with the outlet of the surface cooling channel 1011 and the outlet of the first direct expansion channel 1012, the second direct expansion channel 104 is connected with the single-cooling type external machine 105, and a compressor and a condenser are arranged in the single-cooling type external machine 105.
Wherein, an electric air valve 106 is disposed in the surface cooling channel 1011 and in the first direct expansion channel 1012, and the electric air valve 106 is used for controlling the opening and closing of the ventilation function of the surface cooling channel 1011 and the first direct expansion channel 1012.
In one embodiment, a fresh air filtering section 107 is disposed between the parallel channel 101 and the fresh air inlet 103.
In one embodiment, the fresh air filter section 107 includes a primary filter section 1071, a multi-stage bipolar electrostatic filter section 1072, and a secondary filter section 1073.
In one embodiment, the fresh air handling unit further comprises:
a return air inlet 108;
a return air channel 109, wherein the inlet of the return air channel 109 is connected with the return air inlet 108.
In one embodiment, the return air channel 109 is provided with a return air filter stage 110.
In one embodiment, the fresh air handling unit further comprises:
an exhaust section 111 connected to an outlet of the return air duct 109;
and a return air outlet 112 connected to the exhaust section 111.
In one embodiment, the fresh air handling unit further comprises:
and a heat recovery section 113 disposed between the fresh air filtering section 107 and the parallel passage 101.
Two channels are provided in the heat recovery section 113, one is disposed between the fresh air filtering section 107 and the parallel channel 101, and the other is disposed between the air exhaust section 111 and the return air channel 109, and the fresh air is sent to the air supply channel, and the return air is sent to the air exhaust channel.
It should be noted that the two pipelines may be two independent pipelines attached together, that is, the sensible heat recovery section 113, so as to exchange heat between the fresh air and the exhausted air in summer, and heat the fresh air to a certain extent. The two pipelines can also be two crossed and intercommunicated pipelines, namely the total heat recovery section 113, so that fresh air can exchange heat and humidity in winter.
Sensible heat exchange does not bring the exhaust air back into the room, and total heat exchange brings a small part of the exhaust air back into the room, so that the sensible heat exchange can be seen to be more sanitary.
In one embodiment, the fresh air handling unit further comprises:
and a reheat section 114, wherein the reheat section 114 is arranged between the second direct expansion passage 104 and the fresh air outlet 116.
In one embodiment, the fresh air handling unit further comprises:
the wet film humidifying section 115, the wet film humidifying section 115 is arranged between the second direct expansion channel 104 and the fresh air outlet 116.
The utility model has the beneficial effects that: the fresh air unit comprises a parallel channel 101, wherein the parallel channel 101 comprises a first direct expansion channel 1012 connected with a heat pump type external machine 102, a surface cooling channel 1011 provided with an air conditioner cold water pipeline, and a second direct expansion channel 104 connected with a single cooling type external machine 105, so that fresh air temperature can be regulated respectively through the heat pump type external machine 102, the air conditioner cold water pipeline and the single cooling type external machine 105, and the fresh air temperature regulation force is improved by optimizing the structure of the fresh air unit.
Next, the process of fresh air flowing through the fresh air handling unit is described by combining the fresh air handling unit:
after entering from the fresh air inlet 103, fresh air enters the heat recovery section 113 through the primary filtering section 1071, the multi-layer bipolar electrostatic filtering section 1072 and the intermediate-efficiency filtering section 1073, and then enters the parallel channel 101, if the electric air valve 106 in the surface cooling channel 1011 in the parallel channel 101 is opened, the fresh air enters the second direct expansion channel 104 from the surface cooling channel 1011, if the electric air valve 106 in the first direct expansion channel 1012 in the parallel channel 101 is opened, the fresh air enters the second direct expansion channel 104 from the first direct expansion channel 1012, and if the electric air valve 106 in both the surface cooling channel 1011 and the first direct expansion channel 1012 in the parallel channel 101 are opened, the fresh air simultaneously enters the second direct expansion channel 104 through the surface cooling channel 1011 and the first direct expansion channel 1012, and the second direct expansion channel 104 can regulate the temperature of the fresh air. After passing through the second direct expansion channel 104, the fresh air enters the air supply section through the reheating section 114 and the wet film humidifying section 115, and then is sent into the room from the fresh air outlet 116.
The fresh air filtering section 107 is a filtering device in the fresh air unit and is used for removing particulate matters and pollutants in air, filtering and purifying the air, and providing clean and healthy indoor air. The fresh air filter section 107 of the present utility model comprises a primary filter section 1071, a multi-section bipolar electrostatic filter section 1072, and a secondary filter section 1073. The primary filter 1071 is mainly used for filtering large particles such as dust, outdoor particles and the like; bipolar electrostatic filter 1072 may filter particulates and contaminants in the air by electrostatic adsorption techniques. Such filter segments are typically composed of the electric field of two charged plates. The working principle is that a strong electric field is formed between the electrode plates by applying a high-voltage electric field, and when air passes through, particles are electrified and then adsorbed on the electrodes by the electric field. The filter section can effectively enlarge the filter area, improve the filter efficiency, and adjust the strength of the electric field according to the requirement so as to adapt to different air quality requirements. The filter section can remove various particulate matters including bacteria, viruses, dust, pollen and the like. Has longer service life. The intermediate filter 1073 filters medium sized particulates such as bacteria, pollen, etc.
In addition, the fresh air handling unit further comprises a return air inlet 108, the return air inlet 108 can suck indoor air into the fresh air handling unit, the return air entering the return air inlet 108 passes through a return air filtering section 110, enters a return air channel 109, passes through a heat recovery section 113, passes through an exhaust section 111 and finally is discharged from a return air outlet 112.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.
Claims (10)
1. A fresh air handling unit, the fresh air handling unit comprising:
the parallel channel comprises a surface cooling channel and a first direct expansion channel, wherein the surface cooling channel is provided with an air conditioner cold water pipeline, the first direct expansion channel is connected with a heat pump type external machine, and a compressor and a condenser are arranged in the heat pump type external machine;
the fresh air inlet is connected with the inlet of the surface cooling channel and the inlet of the first direct expansion channel in the parallel channel;
the inlet of the second direct expansion channel is connected with the outlet of the surface cooling channel and the outlet of the first direct expansion channel respectively, the second direct expansion channel is connected with a single-cooling type external machine, and a compressor and a condenser are arranged in the single-cooling type external machine.
2. The fresh air handling unit according to claim 1, wherein an electric air valve is disposed in the surface cooling passage and in the first direct expansion passage, and the electric air valve is configured to control opening and closing of ventilation functions in the surface cooling passage and in the first direct expansion passage.
3. The fresh air handling unit of claim 1, wherein a fresh air filter segment is disposed between the parallel passage and the fresh air inlet.
4. The fresh air handling unit of claim 3, wherein the fresh air filter segment comprises a primary filter segment, a multi-segment bipolar electrostatic filter segment, and a secondary filter segment.
5. The fresh air handling unit of claim 1, further comprising:
a return air inlet;
and the inlet of the return air channel is connected with the return air inlet.
6. The fresh air handling unit of claim 5, wherein the return air duct is provided with a return air filter section.
7. The fresh air handling unit of claim 6, further comprising:
the air exhaust section is connected with the outlet of the return air channel;
and the return air outlet is connected with the exhaust section.
8. The fresh air handling unit of claim 3, further comprising:
and the heat recovery section is arranged between the fresh air filtering section and the parallel channel.
9. The fresh air handling unit of claim 1, further comprising:
and the reheating section is arranged between the second direct expansion channel and the fresh air outlet.
10. The fresh air handling unit of claim 1, further comprising:
and the wet film humidifying section is arranged between the second direct expansion channel and the fresh air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322435094.2U CN220750313U (en) | 2023-09-07 | 2023-09-07 | Fresh air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322435094.2U CN220750313U (en) | 2023-09-07 | 2023-09-07 | Fresh air unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220750313U true CN220750313U (en) | 2024-04-09 |
Family
ID=90553670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322435094.2U Active CN220750313U (en) | 2023-09-07 | 2023-09-07 | Fresh air unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220750313U (en) |
-
2023
- 2023-09-07 CN CN202322435094.2U patent/CN220750313U/en active Active
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