CN113266877A - Air conditioner and fresh air system thereof - Google Patents
Air conditioner and fresh air system thereof Download PDFInfo
- Publication number
- CN113266877A CN113266877A CN202110607370.1A CN202110607370A CN113266877A CN 113266877 A CN113266877 A CN 113266877A CN 202110607370 A CN202110607370 A CN 202110607370A CN 113266877 A CN113266877 A CN 113266877A
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- fresh air
- air
- indoor
- duct
- tesla
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- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000004378 air conditioning Methods 0.000 description 7
- 230000003750 conditioning effect Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
- F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside air
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
Abstract
The invention provides an air conditioner and a fresh air system thereof, wherein the fresh air system comprises a fresh air duct and an air outlet duct, the fresh air duct is used for conducting outdoor air to the indoor, a fresh air control valve and a fresh air fan are assembled on the fresh air duct, the fresh air control valve is used for opening or closing the fresh air duct, and the fresh air fan is used for generating the power for gas flow; the air outlet duct comprises a Tesla valve and is used for conducting indoor air to the outside. The invention utilizes the characteristics of Tesla valve structure without movable parts and one-way flow limiting, simplifies the structure of the fresh air duct, reduces the number of valve bodies, fans and control parts required by the fresh air duct, reduces the electric control difficulty and reduces the cost. The fresh air system of the invention adopts the Tesla valve to limit the air flow direction through the self structure, has no moving part and control part, and has the characteristics of no abrasion, long service life and the like.
Description
Technical Field
The invention relates to the technical field of air conditioning devices, in particular to an air conditioner and a fresh air system thereof.
Background
With the development of economy, air conditioners have become essential household appliances in daily life.
When the air conditioner is used for a long time, the indoor air quality is easily reduced because the indoor space is in a relatively closed state. Along with the requirement of the user on the living quality is higher and higher, in the air conditioner operation process, indoor circulating air is updated, and fresh air is introduced, so that the new direction for improving the user experience is provided.
The existing air conditioner generally solves the problem of fresh air by adding a fresh air system. The new trend system among the air conditioner generally contains new trend wind channel and air-out wind channel, accomplishes to introduce the new trend through new trend wind channel with the new trend fan, discharges the room air through air-out fan with the air-out wind channel, sets up air door and driving piece separately on air-in wind channel and air-out wind channel and controls opening and shutting of new trend wind channel. In some cases, a heat exchange channel is additionally arranged between the two air channels, so that outdoor relatively high-temperature air to be introduced is subjected to heat exchange with indoor cold air to be discharged and cooled by an air conditioner, and the waste of refrigerating capacity is avoided.
This kind of new trend system need set up fan and control valve on the wind channel, increases the control degree of difficulty and cost, and the long-time use of control valve has the risk of wearing and tearing inefficacy.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide an air conditioner and a fresh air system thereof, and solves the technical problems that a fan and a control valve are required to be arranged on an air duct, the control difficulty and cost are increased, and the control valve is worn and failed after being used for a long time in the conventional fresh air system.
The invention provides an air conditioner and a fresh air system thereof:
a fresh air system comprising:
the fresh air duct is used for conducting outdoor air to the indoor space;
the fresh air control valve is assembled on the fresh air duct and is used for opening or closing the fresh air duct;
the fresh air fan is assembled on the fresh air duct;
and the air outlet duct comprises a Tesla valve and is used for conducting indoor air to the outside.
As mentioned above, the air outlet duct includes a tesla valve, the tesla valve has a forward flow direction and a reverse flow direction, and the tesla valve is in the forward flow direction in the indoor to outdoor direction.
As mentioned above, the air outlet duct comprises a Tesla valve or a plurality of parallel Tesla valves.
As above fresh air system, the air outlet duct comprises an air outlet control valve.
As described above, the air outlet duct includes a tesla valve set, the tesla valve set includes at least two tesla valves connected in series, the tesla valve has a forward flow direction and a reverse flow direction, and the flow directions of the at least two tesla valves connected in series are opposite in an indoor-to-outdoor direction.
In the fresh air system, the flow directions of the tesla valves are a forward flow direction and a reverse flow direction from indoor to outdoor.
As for the fresh air system, the air outlet duct comprises a Tesla valve bank or a plurality of Tesla valve banks connected in parallel.
As above fresh air system, fresh air system includes the controller for control when receiving fresh air opening control signal fresh air control valve opens fresh air fan starts, be used for control when receiving fresh air closing control signal fresh air control valve closes fresh air fan closes.
As above fresh air system, fresh air system includes the air-out control valve, the controller is used for controlling when receiving fresh air and opening control signal fresh air control valve is opened, fresh air fan starts, the air-out control valve is opened for controlling when receiving fresh air and closing control signal fresh air control valve is closed, fresh air fan is closed, the air-out control valve is closed.
An air conditioner comprises an air conditioner body and further comprises the fresh air system.
Compared with the prior art, the invention has the advantages and positive effects that: the fresh air system comprises a fresh air duct and an air outlet duct, wherein the fresh air duct is used for conducting outdoor air to the indoor space, a fresh air control valve and a fresh air fan are assembled on the fresh air duct, the fresh air control valve is used for opening or closing the fresh air duct, and the fresh air fan is used for generating the power for gas flow; the air outlet duct comprises a Tesla valve and is used for conducting indoor air to the outside. The invention utilizes the characteristics of Tesla valve structure without movable parts and one-way flow limiting, simplifies the structure of the fresh air duct, reduces the number of valve bodies, fans and control parts required by the fresh air duct, reduces the electric control difficulty and reduces the cost. The fresh air system of the invention adopts the Tesla valve to limit the air flow direction through the self structure, has no moving part and control part, and has the characteristics of no abrasion, long service life and the like.
The air conditioner comprises an air conditioner body and a fresh air system, wherein the fresh air system comprises a fresh air duct and an air outlet duct, the fresh air duct is used for conducting outdoor air to the indoor space, a fresh air control valve and a fresh air fan are assembled on the fresh air duct, the fresh air control valve is used for opening or closing the fresh air duct, and the fresh air fan is used for generating the power for gas flow; the air outlet duct comprises a Tesla valve and is used for conducting indoor air to the outside. The invention utilizes the characteristics of Tesla valve structure without movable parts and one-way flow limiting, simplifies the structure of the fresh air duct, reduces the number of valve bodies, fans and control parts required by the fresh air duct, reduces the electric control difficulty and reduces the cost. The fresh air system of the invention adopts the Tesla valve to limit the air flow direction through the self structure, has no moving part and control part, and has the characteristics of no abrasion, long service life and the like.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a fresh air system according to a first embodiment of the present invention.
Fig. 2 is a schematic view of a fresh air system according to a second embodiment of the present invention.
Fig. 3 is a schematic view of a fresh air system according to a third embodiment of the present invention.
Fig. 4 is a schematic view of a fresh air system according to a fourth embodiment of the present invention.
Fig. 5 is a schematic view of a fresh air system according to a fifth embodiment of the present invention.
Fig. 6 is a schematic view of a fresh air system according to a sixth embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
1. a fresh air duct;
11. a fresh air control valve;
12. a fresh air fan;
13. an air inlet end;
14. an air outlet end;
2. an air outlet duct;
21. a Tesla valve;
211. a first Tesla valve;
212. a second Tesla valve;
22. an air inlet end;
23. an air outlet end;
24. an air outlet control valve.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Tesla valves provide a higher pressure drop in one direction of flow than in the other direction through different pressure drop characteristics of the fluid as it diverges and converges, making fluid flow in one direction smoother and in the other direction more difficult. The tesla valve ensures that no fluid passes through the interior until the back pressure does not exceed a threshold value. The fluid flow direction is limited by the self structure, and the fluid flow direction control device has the characteristics of no abrasion, long service life and the like without moving parts and control parts. This embodiment new trend system sets up the tesla valve on the air-out wind channel, and it is indoor to pass through air-out wind channel entering through the restriction of tesla valve outdoor air, and when indoor pressure was greater than outdoors (the control valve in new trend wind channel was opened and the fan work), discharges the room air to outdoor, realizes the purpose of indoor new trend.
The following is illustrated in detail by means of several examples:
example one
As shown in fig. 1, the fresh air system of this embodiment includes a fresh air duct 1 and an air outlet duct 2, a fresh air control valve 11 and a fresh air blower 12 are disposed on the fresh air duct 1, and a tesla valve 21 is disposed on the air outlet duct 2.
The following specifically describes the fresh air duct 1 and the air outlet duct 2:
the fresh air duct 1 is generally installed in a building cavity to conduct outdoor air to the indoor.
In order to ensure the cleanness of the air entering the room from the outside, a filter device is preferably arranged at the air inlet end of the fresh air duct 1.
Fresh air control valve 11 assembles in fresh air duct 1, and fresh air control valve 11 is used for opening or closing fresh air duct 1.
The fresh air control valve 11 is generally an air door, when the fresh air control valve 11 is opened, the fresh air duct 1 is switched on, and when the fresh air control valve 11 is closed, the fresh air duct 1 is cut off.
The fresh air fan 12 is assembled on the fresh air duct 1 and used for providing air flow power. Generally, when the fresh air control valve 11 is opened, the fresh air fan 12 is started to introduce outdoor air into the room, and when the fresh air control valve 11 is closed, the fresh air fan 12 is closed.
The air outlet duct 2 includes a tesla valve 21 for conducting indoor air to the outside.
Air-out wind channel 2 generally installs in the building cavity, and air-out wind channel 2 includes air inlet end 22 and air-out end 23, and air inlet end 22 is located indoor side, and air-out end 23 is located outdoor side.
And through holes communicated with the Tesla valve 21 are formed in the air inlet end 22 and the air outlet end 23.
The air outlet duct 2 of the present embodiment includes a tesla valve 21.
The tesla valve 21 has a forward flow direction and a reverse flow direction due to its own characteristics, wherein the forward flow direction is a direction in which the pressure drop is low, and the reverse flow direction is a direction in which the pressure drop is high, so that the flow in the forward flow direction is smooth, and the flow in the reverse flow direction is difficult and requires high pressure to be conducted.
In the indoor to outdoor direction, the tesla valve 21 is in the forward flow direction, and this kind of arrangement, the indoor air can flow to the outdoor more smoothly, and outdoor air flows to indoor then more difficult, therefore, this embodiment can ensure that the air-out is smooth and easy to still can avoid outdoor air to get into indoor through air-out passageway 2.
This embodiment is opened at new trend control valve 11, and new trend fan 12 during operation, and new trend wind channel 1 introduces indoor with outdoor air for indoor atmospheric pressure increases, and indoor foul smell is discharged outdoors through the tesla valve 21 in air-out wind channel 2.
Certainly, in order to avoid the loss of indoor heat, a heat exchanger can be added between the fresh air duct 1 and the air outlet duct 2.
The new trend system includes the controller for when receiving new trend opening control signal control new trend control valve 11 is opened, new trend fan 12 starts, and new trend wind channel 1 introduces outdoor air indoor for indoor atmospheric pressure increases, because indoor atmospheric pressure increase is greater than outdoor atmospheric pressure, indoor foul smell accessible air outlet channel 2's tesla valve 21 discharge is outdoor, realizes indoor new trend function. The controller is also used for controlling the fresh air control valve 11 to be closed and the fresh air fan 12 to be closed when receiving a fresh air closing control signal, at the moment, outdoor air cannot enter the room through the fresh air duct 1, and because of the characteristic of the Tesla valve 21, the outdoor air cannot enter the room through the air outlet duct 2, so that indoor relative sealing is ensured, and the air conditioning effect is ensured.
This embodiment has still provided an air conditioner, and the air conditioner includes air conditioner body and foretell new trend system.
Example two
As shown in fig. 2, the fresh air system of this embodiment includes a fresh air duct 1 and an air outlet duct 2, a fresh air control valve 11 and a fresh air blower 12 are disposed on the fresh air duct 1, and a tesla valve 21 is disposed on the air outlet duct 2.
The following specifically describes the fresh air duct 1 and the air outlet duct 2:
the fresh air duct 1 is generally installed in a building cavity to conduct outdoor air to the indoor.
In order to ensure the cleanness of the air entering the room from the outside, a filter device is preferably arranged at the air inlet end of the fresh air duct 1.
Fresh air control valve 11 assembles in fresh air duct 1, and fresh air control valve 11 is used for opening or closing fresh air duct 1.
The fresh air control valve 11 is generally an air door, when the fresh air control valve 11 is opened, the fresh air duct 1 is switched on, and when the fresh air control valve 11 is closed, the fresh air duct 1 is cut off.
The fresh air fan 12 is assembled on the fresh air duct 1 and used for providing air flow power. Generally, when the fresh air control valve 11 is opened, the fresh air fan 12 is started to introduce outdoor air into the room, and when the fresh air control valve 11 is closed, the fresh air fan 12 is closed.
The air outlet duct 2 includes a tesla valve 21 for conducting indoor air to the outside.
Air-out wind channel 2 generally installs in the building cavity, and air-out wind channel 2 includes air inlet end 22 and air-out end 23, and air inlet end 22 is located indoor side, and air-out end 23 is located outdoor side.
And through holes communicated with the Tesla valve 21 are formed in the air inlet end 22 and the air outlet end 23.
Because the pipe diameter of the tesla valve 21 is generally thinner, in order to improve the fresh air exchange efficiency, the air outlet duct comprises a plurality of tesla valves 21 which are connected in parallel, so that the air inlet volume is matched with the air outlet volume.
The air outlet duct 2 of the present embodiment includes three tesla valves 21 connected in parallel.
The tesla valve 21 has a forward flow direction and a reverse flow direction due to its own characteristics, wherein the forward flow direction is a direction in which the pressure drop is low, and the reverse flow direction is a direction in which the pressure drop is high, so that the flow in the forward flow direction is smooth, and the flow in the reverse flow direction is difficult and requires high pressure to be conducted.
In the indoor to outdoor direction, the tesla valve 21 is in the forward flow direction, and this kind of arrangement, the indoor air can flow to the outdoor more smoothly, and outdoor air flows to indoor then more difficult, therefore, this embodiment can ensure that the air-out is smooth and easy to still can avoid outdoor air to get into indoor through air-out passageway 2.
This embodiment is opened at new trend control valve 11, and new trend fan 12 during operation, and new trend wind channel 1 introduces indoor with outdoor air for indoor atmospheric pressure increases, and indoor foul smell is discharged outdoors through the tesla valve 21 in air-out wind channel 2.
Certainly, in order to avoid the loss of indoor heat, a heat exchanger can be added between the fresh air duct 1 and the air outlet duct 2.
The new trend system includes the controller for when receiving new trend opening control signal control new trend control valve 11 is opened, new trend fan 12 starts, and new trend wind channel 1 introduces outdoor air indoor for indoor atmospheric pressure increases, because indoor atmospheric pressure increase is greater than outdoor atmospheric pressure, indoor foul smell accessible air outlet channel 2's tesla valve 21 discharge is outdoor, realizes indoor new trend function. The controller is also used for controlling the fresh air control valve 11 to be closed and the fresh air fan 12 to be closed when receiving a fresh air closing control signal, at the moment, outdoor air cannot enter the room through the fresh air duct 1, and because of the characteristic of the Tesla valve 21, the outdoor air cannot enter the room through the air outlet duct 2, so that indoor relative sealing is ensured, and the air conditioning effect is ensured.
This embodiment has still provided an air conditioner, and the air conditioner includes air conditioner body and foretell new trend system.
EXAMPLE III
As shown in fig. 3, the fresh air system of this embodiment includes a fresh air duct 1 and an air outlet duct 2, a fresh air control valve 11 and a fresh air blower 12 are disposed on the fresh air duct 1, and a tesla valve 21 is disposed on the air outlet duct 2.
The following specifically describes the fresh air duct 1 and the air outlet duct 2:
the fresh air duct 1 is generally installed in a building cavity to conduct outdoor air to the indoor.
In order to ensure the cleanness of the air entering the room from the outside, a filter device is preferably arranged at the air inlet end of the fresh air duct 1.
Fresh air control valve 11 assembles in fresh air duct 1, and fresh air control valve 11 is used for opening or closing fresh air duct 1.
The fresh air control valve 11 is generally an air door, when the fresh air control valve 11 is opened, the fresh air duct 1 is switched on, and when the fresh air control valve 11 is closed, the fresh air duct 1 is cut off.
The fresh air fan 12 is assembled on the fresh air duct 1 and used for providing air flow power. Generally, when the fresh air control valve 11 is opened, the fresh air fan 12 is started to introduce outdoor air into the room, and when the fresh air control valve 11 is closed, the fresh air fan 12 is closed.
The air outlet duct 2 includes a tesla valve 21 for conducting indoor air to the outside.
Air-out wind channel 2 generally installs in the building cavity, and air-out wind channel 2 includes air inlet end 22 and air-out end 23, and air inlet end 22 is located indoor side, and air-out end 23 is located outdoor side.
And through holes communicated with the Tesla valve 21 are formed in the air inlet end 22 and the air outlet end 23.
The air outlet duct 2 of the present embodiment includes a tesla valve 21.
The tesla valve 21 has a forward flow direction and a reverse flow direction due to its own characteristics, wherein the forward flow direction is a direction in which the pressure drop is low, and the reverse flow direction is a direction in which the pressure drop is high, so that the flow in the forward flow direction is smooth, and the flow in the reverse flow direction is difficult and requires high pressure to be conducted.
In the indoor to outdoor direction, the tesla valve 21 is in the forward flow direction, and this kind of arrangement, the indoor air can flow to the outdoor more smoothly, and outdoor air flows to indoor then more difficult, therefore, this embodiment can ensure that the air-out is smooth and easy to still can avoid outdoor air to get into indoor through air-out passageway 2.
This embodiment is opened at new trend control valve 11, and new trend fan 12 during operation, and new trend wind channel 1 introduces indoor with outdoor air for indoor atmospheric pressure increases, and indoor foul smell is discharged outdoors through the tesla valve 21 in air-out wind channel 2.
Certainly, in order to avoid the loss of indoor heat, a heat exchanger can be added between the fresh air duct 1 and the air outlet duct 2.
In order to further avoid the situation that the fresh air function is not opened, indoor air is discharged to the outdoor through the air outlet duct 2, an air outlet control valve 24 is further arranged on the air outlet duct 2, when the fresh air function is opened, the air outlet control valve 24 is opened, and when the fresh air function is closed, the air outlet control valve 24 is closed.
The new trend system includes the controller for when receiving new trend opening control signal control new trend control valve 11 is opened, new trend fan 12 starts, air-out control valve 24 is opened, and new trend wind channel 1 introduces outdoor air indoor for indoor atmospheric pressure increases, because indoor atmospheric pressure increase is greater than outdoor atmospheric pressure, indoor foul smell accessible air-out wind channel 2's Tesla valve 21 discharges outdoors, realizes indoor new trend function. The controller is also used for controlling the fresh air control valve 11 to be closed, the fresh air fan 12 to be closed and the air outlet control valve 24 to be closed when receiving a fresh air closing control signal, at the moment, outdoor air cannot enter the room through the fresh air duct 1, outdoor air cannot enter the room through the air outlet duct 2 due to the characteristic of the Tesla valve 21, indoor air cannot be discharged to the outside through the fresh air duct 1 and the air outlet duct 2, indoor relative sealing is guaranteed, and the air conditioning effect is guaranteed.
This embodiment has still provided an air conditioner, and the air conditioner includes air conditioner body and foretell new trend system.
Example four
As shown in fig. 4, the fresh air system of this embodiment includes a fresh air duct 1 and an air outlet duct 2, a fresh air control valve 11 and a fresh air blower 12 are disposed on the fresh air duct 1, and a tesla valve 21 is disposed on the air outlet duct 2.
The following specifically describes the fresh air duct 1 and the air outlet duct 2:
the fresh air duct 1 is generally installed in a building cavity to conduct outdoor air to the indoor.
In order to ensure the cleanness of the air entering the room from the outside, a filter device is preferably arranged at the air inlet end of the fresh air duct 1.
Fresh air control valve 11 assembles in fresh air duct 1, and fresh air control valve 11 is used for opening or closing fresh air duct 1.
The fresh air control valve 11 is generally an air door, when the fresh air control valve 11 is opened, the fresh air duct 1 is switched on, and when the fresh air control valve 11 is closed, the fresh air duct 1 is cut off.
The fresh air fan 12 is assembled on the fresh air duct 1 and used for providing air flow power. Generally, when the fresh air control valve 11 is opened, the fresh air fan 12 is started to introduce outdoor air into the room, and when the fresh air control valve 11 is closed, the fresh air fan 12 is closed.
The air outlet duct 2 includes a tesla valve 21 for conducting indoor air to the outside.
Air-out wind channel 2 generally installs in the building cavity, and air-out wind channel 2 includes air inlet end 22 and air-out end 23, and air inlet end 22 is located indoor side, and air-out end 23 is located outdoor side.
And through holes communicated with the Tesla valve 21 are formed in the air inlet end 22 and the air outlet end 23.
Because the pipe diameter of the tesla valve 21 is generally thinner, in order to improve the fresh air exchange efficiency, the air outlet duct comprises a plurality of tesla valves 21 which are connected in parallel, so that the air inlet volume is matched with the air outlet volume.
The air outlet duct 2 of the present embodiment includes three tesla valves 21 connected in parallel.
The tesla valve 21 has a forward flow direction and a reverse flow direction due to its own characteristics, wherein the forward flow direction is a direction in which the pressure drop is low, and the reverse flow direction is a direction in which the pressure drop is high, so that the flow in the forward flow direction is smooth, and the flow in the reverse flow direction is difficult and requires high pressure to be conducted.
In the indoor to outdoor direction, the tesla valve 21 is in the forward flow direction, and this kind of arrangement, the indoor air can flow to the outdoor more smoothly, and outdoor air flows to indoor then more difficult, therefore, this embodiment can ensure that the air-out is smooth and easy to still can avoid outdoor air to get into indoor through air-out passageway 2.
This embodiment is opened at new trend control valve 11, and new trend fan 12 during operation, and new trend wind channel 1 introduces indoor with outdoor air for indoor atmospheric pressure increases, and indoor foul smell is discharged outdoors through the tesla valve 21 in air-out wind channel 2.
Certainly, in order to avoid the loss of indoor heat, a heat exchanger can be added between the fresh air duct 1 and the air outlet duct 2.
In order to further avoid the situation that the fresh air function is not opened, indoor air is discharged to the outdoor through the air outlet duct 2, an air outlet control valve 24 is further arranged on the air outlet duct 2, when the fresh air function is opened, the air outlet control valve 24 is opened, and when the fresh air function is closed, the air outlet control valve 24 is closed.
The new trend system includes the controller for when receiving new trend opening control signal control new trend control valve 11 is opened, new trend fan 12 starts, air-out control valve 24 is opened, and new trend wind channel 1 introduces outdoor air indoor for indoor atmospheric pressure increases, because indoor atmospheric pressure increase is greater than outdoor atmospheric pressure, indoor foul smell accessible air-out wind channel 2's Tesla valve 21 discharges outdoors, realizes indoor new trend function. The controller is also used for controlling the fresh air control valve 11 to be closed, the fresh air fan 12 to be closed and the air outlet control valve 24 to be closed when receiving a fresh air closing control signal, at the moment, outdoor air cannot enter the room through the fresh air duct 1, outdoor air cannot enter the room through the air outlet duct 2 due to the characteristic of the Tesla valve 21, indoor air cannot be discharged to the outside through the fresh air duct 1 and the air outlet duct 2, indoor relative sealing is guaranteed, and the air conditioning effect is guaranteed.
This embodiment has still provided an air conditioner, and the air conditioner includes air conditioner body and foretell new trend system.
EXAMPLE five
As shown in fig. 5, the fresh air system of this embodiment includes a fresh air duct 1 and an air outlet duct 2, a fresh air control valve 11 and a fresh air blower 12 are provided on the fresh air duct 1, and a tesla valve set is provided on the air outlet duct 2.
The following specifically describes the fresh air duct 1 and the air outlet duct 2:
the fresh air duct 1 is generally installed in a building cavity to conduct outdoor air to the indoor.
In order to ensure the cleanness of the air entering the room from the outside, a filter device is preferably arranged at the air inlet end of the fresh air duct 1.
Fresh air control valve 11 assembles in fresh air duct 1, and fresh air control valve 11 is used for opening or closing fresh air duct 1.
The fresh air control valve 11 is generally an air door, when the fresh air control valve 11 is opened, the fresh air duct 1 is switched on, and when the fresh air control valve 11 is closed, the fresh air duct 1 is cut off.
The fresh air fan 12 is assembled on the fresh air duct 1 and used for providing air flow power. Generally, when the fresh air control valve 11 is opened, the fresh air fan 12 is started to introduce outdoor air into the room, and when the fresh air control valve 11 is closed, the fresh air fan 12 is closed.
The air outlet duct 2 includes a tesla valve group for conducting indoor air to the outdoor.
Air-out wind channel 2 generally installs in the building cavity, and air-out wind channel 2 includes air inlet end 22 and air-out end 23, and air inlet end 22 is located indoor side, and air-out end 23 is located outdoor side.
And through holes communicated with the Tesla valve 21 are formed in the air inlet end 22 and the air outlet end 23.
The air outlet duct 2 comprises a tesla valve set, and the tesla valve set comprises at least two tesla valves connected in series.
The Tesla valve has a forward flow direction and a reverse flow direction due to the characteristics of the Tesla valve, wherein the forward flow direction is a direction with lower pressure drop, the reverse flow direction is a direction with higher pressure drop, the flow in the forward flow direction is smoother, and the flow in the reverse flow direction is more difficult and can be conducted only by higher pressure.
The flow direction of at least two said tesla valves in series is opposite in the indoor to outdoor direction.
Preferably, the direction of flow of the tesla valve in the indoor to outdoor direction is a forward flow direction and a reverse flow direction.
The air outlet duct 2 of the present embodiment includes a tesla valve set, the tesla valve set includes a first tesla valve 211 and a second tesla valve 212 connected in series, the first tesla valve 211 is close to the indoor, the second tesla valve 212 is close to the outdoor, the flow direction of the first tesla valve 211 is a forward flow direction, and the flow direction of the second tesla valve 212 is a reverse flow direction.
In the arrangement mode, by utilizing the one-way circulation characteristic of the Tesla valve when the pressure does not reach a certain value, the two Tesla valves connected in series in the reverse direction form a two-way pressure switch channel, and when the pressure value is lower than the system resistance of the Tesla valves, no air flow passes through the air outlet channel 2. Specifically, when the air conditioner normally operates indoors and does not start the fresh air function, the indoor air pressure is close to the outdoor air pressure, the air pressure difference at the two sides of the air outlet channel 2 is not enough to overcome the system resistance of the Tesla valve, and no air flow passes through the fresh air channel/the air flow throughput is very small, so that the cold air in the room does not need to be worried about to run out of the room, and the refrigerating capacity is wasted; when opening the new trend function, when indoor atmospheric pressure is greater than outdoor atmospheric pressure and overcomes the resistance of tesla valve, can realize that indoor foul air passes through air-out wind channel 2 and discharges, therefore, this embodiment can ensure that the air-out is smooth and easy when the new trend function, and in addition, outdoor atmospheric pressure generally can not be higher than indoor atmospheric pressure, and this embodiment still can avoid outdoor air to pass through air-out passageway 2 and get into indoorly.
This embodiment is opened at new trend control valve 11, and new trend fan 12 during operation, and new trend wind channel 1 introduces indoor with outdoor air for indoor atmospheric pressure increases, and indoor foul smell is discharged outdoors through the tesla valves in air-out wind channel 2.
Certainly, in order to avoid the loss of indoor heat, a heat exchanger can be added between the fresh air duct 1 and the air outlet duct 2.
The new trend system includes the controller for when receiving new trend opening control signal control new trend control valve 11 is opened, new trend fan 12 starts, and new trend wind channel 1 introduces outdoor air indoor for indoor atmospheric pressure increases, because indoor atmospheric pressure increase is greater than outdoor atmospheric pressure, indoor foul smell accessible air outlet duct 2's tesla valves discharge outdoor, realizes indoor new trend function. The controller is also used for controlling the fresh air control valve 11 to be closed and the fresh air fan 12 to be closed when receiving a fresh air closing control signal, and at the moment, outdoor air cannot enter the room through the fresh air duct 1, and indoor air cannot enter the room through the fresh air duct 1; indoor and outdoor air pressure is basically the same, and due to the characteristics of the Tesla valve, outdoor air cannot enter the room through the air outlet duct 2, and indoor air cannot enter the room through the Tesla valve group, so that indoor relative sealing is guaranteed, and the air conditioning effect is guaranteed.
This embodiment has still provided an air conditioner, and the air conditioner includes air conditioner body and foretell new trend system.
EXAMPLE six
As shown in fig. 6, the fresh air system of this embodiment includes a fresh air duct 1 and an air outlet duct 2, a fresh air control valve 11 and a fresh air blower 12 are provided on the fresh air duct 1, and a tesla valve set is provided on the air outlet duct 2.
The following specifically describes the fresh air duct 1 and the air outlet duct 2:
the fresh air duct 1 is generally installed in a building cavity to conduct outdoor air to the indoor.
In order to ensure the cleanness of the air entering the room from the outside, a filter device is preferably arranged at the air inlet end of the fresh air duct 1.
Fresh air control valve 11 assembles in fresh air duct 1, and fresh air control valve 11 is used for opening or closing fresh air duct 1.
The fresh air control valve 11 is generally an air door, when the fresh air control valve 11 is opened, the fresh air duct 1 is switched on, and when the fresh air control valve 11 is closed, the fresh air duct 1 is cut off.
The fresh air fan 12 is assembled on the fresh air duct 1 and used for providing air flow power. Generally, when the fresh air control valve 11 is opened, the fresh air fan 12 is started to introduce outdoor air into the room, and when the fresh air control valve 11 is closed, the fresh air fan 12 is closed.
The air outlet duct 2 includes a tesla valve group for conducting indoor air to the outdoor.
Air-out wind channel 2 generally installs in the building cavity, and air-out wind channel 2 includes air inlet end 22 and air-out end 23, and air inlet end 22 is located indoor side, and air-out end 23 is located outdoor side.
And through holes communicated with the Tesla valves are arranged on the air inlet end 22 and the air outlet end 23.
Because the pipe diameter of tesla valve is generally thinner, in order to improve the fresh air exchange efficiency, the air outlet duct comprises a plurality of tesla valve groups which are connected in parallel, so that the air inlet volume is matched with the air outlet volume. Each Tesla valve group comprises at least two Tesla valves connected in series.
The Tesla valve has a forward flow direction and a reverse flow direction due to the characteristics of the Tesla valve, wherein the forward flow direction is a direction with lower pressure drop, the reverse flow direction is a direction with higher pressure drop, the flow in the forward flow direction is smoother, and the flow in the reverse flow direction is more difficult and can be conducted only by higher pressure.
The flow direction of at least two said tesla valves in series is opposite in the indoor to outdoor direction.
Preferably, the direction of flow of the tesla valve in the indoor to outdoor direction is a forward flow direction and a reverse flow direction.
The air outlet duct 2 of the present embodiment includes three tesla valve sets, each tesla valve set includes two first tesla valves 211 and a second tesla valve 212 connected in series, the first tesla valve 211 is close to the indoor, the second tesla valve 212 is close to the outdoor, the flow direction of the first tesla valve 211 is a forward flow direction, and the flow direction of the second tesla valve 212 is a reverse flow direction.
In the arrangement mode, by utilizing the one-way circulation characteristic of the Tesla valve when the pressure does not reach a certain value, the two Tesla valves connected in series in the reverse direction form a two-way pressure switch channel, and when the pressure value is lower than the system resistance of the Tesla valves, no air flow passes through the air outlet channel 2. Specifically, when the air conditioner normally operates indoors and does not start the fresh air function, the indoor air pressure is close to the outdoor air pressure, the air pressure difference at the two sides of the air outlet channel 2 is not enough to overcome the system resistance of the Tesla valve, and no air flow passes through the fresh air channel/the air flow throughput is very small, so that the cold air in the room does not need to be worried about to run out of the room, and the refrigerating capacity is wasted; when opening the new trend function, when indoor atmospheric pressure is greater than outdoor atmospheric pressure and overcomes the resistance of tesla valve, can realize that indoor foul air passes through air-out wind channel 2 and discharges, therefore, this embodiment can ensure that the air-out is smooth and easy when the new trend function, and in addition, outdoor atmospheric pressure generally can not be higher than indoor atmospheric pressure, and this embodiment still can avoid outdoor air to pass through air-out passageway 2 and get into indoorly.
This embodiment is opened at new trend control valve 11, and new trend fan 12 during operation, and new trend wind channel 1 introduces indoor with outdoor air for indoor atmospheric pressure increases, and indoor foul smell is discharged outdoors through the tesla valves in air-out wind channel 2.
Certainly, in order to avoid the loss of indoor heat, a heat exchanger can be added between the fresh air duct 1 and the air outlet duct 2.
The new trend system includes the controller for when receiving new trend opening control signal control new trend control valve 11 is opened, new trend fan 12 starts, and new trend wind channel 1 introduces outdoor air indoor for indoor atmospheric pressure increases, because indoor atmospheric pressure increase is greater than outdoor atmospheric pressure, indoor foul smell accessible air outlet duct 2's tesla valves discharge outdoor, realizes indoor new trend function. The controller is also used for controlling the fresh air control valve 11 to be closed and the fresh air fan 12 to be closed when receiving a fresh air closing control signal, and at the moment, outdoor air cannot enter the room through the fresh air duct 1, and indoor air cannot enter the room through the fresh air duct 1; indoor and outdoor air pressure is basically the same, and due to the characteristics of the Tesla valve, outdoor air cannot enter the room through the air outlet duct 2, and indoor air cannot enter the room through the Tesla valve group, so that indoor relative sealing is guaranteed, and the air conditioning effect is guaranteed.
This embodiment has still provided an air conditioner, and the air conditioner includes air conditioner body and foretell new trend system.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. A fresh air system, comprising:
the fresh air duct is used for conducting outdoor air to the indoor space;
the fresh air control valve is assembled on the fresh air duct and is used for opening or closing the fresh air duct;
the fresh air fan is assembled on the fresh air duct;
and the air outlet duct comprises a Tesla valve and is used for conducting indoor air to the outside.
2. The fresh air system as recited in claim 1, wherein the outlet duct comprises a tesla valve having a forward flow direction and a reverse flow direction, the tesla valve being in the forward flow direction in an indoor to outdoor direction.
3. The fresh air system as claimed in claim 2, wherein the outlet duct comprises a tesla valve or a plurality of tesla valves connected in parallel.
4. The fresh air system as claimed in claim 2 or 3, wherein the outlet duct includes an outlet control valve.
5. The fresh air system as claimed in claim 1, wherein the air outlet duct comprises a tesla valve set, the tesla valve set comprises at least two tesla valves connected in series, the tesla valves have a forward flow direction and a reverse flow direction, and the flow directions of the at least two tesla valves connected in series are opposite in an indoor-to-outdoor direction.
6. The fresh air system as claimed in claim 4, wherein the direction of flow of the Tesla valve is a forward flow direction and a reverse flow direction in an indoor-to-outdoor direction.
7. The fresh air system as claimed in claim 4, wherein the air outlet duct comprises a tesla valve set or a plurality of tesla valve sets connected in parallel.
8. The fresh air system as claimed in any one of claims 1 to 7, wherein the fresh air system comprises a controller for controlling the fresh air control valve to be opened and the fresh air fan to be started when receiving a fresh air opening control signal, and for controlling the fresh air control valve to be closed and the fresh air fan to be closed when receiving a fresh air closing control signal.
9. The fresh air system of claim 8, wherein the fresh air system comprises an air outlet control valve, and the controller is configured to control the fresh air control valve to open, the fresh air fan to start, and the air outlet control valve to open when receiving a fresh air opening control signal, and to control the fresh air control valve to close, the fresh air fan to close, and the air outlet control valve to close when receiving a fresh air closing control signal.
10. An air conditioner, comprising an air conditioner body, characterized in that the air conditioner further comprises a fresh air system according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110607370.1A CN113266877A (en) | 2021-06-01 | 2021-06-01 | Air conditioner and fresh air system thereof |
| PCT/CN2022/071291 WO2022096036A1 (en) | 2021-06-01 | 2022-01-11 | Air conditioner and fresh air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110607370.1A CN113266877A (en) | 2021-06-01 | 2021-06-01 | Air conditioner and fresh air system thereof |
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| CN113266877A true CN113266877A (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110607370.1A Pending CN113266877A (en) | 2021-06-01 | 2021-06-01 | Air conditioner and fresh air system thereof |
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| Country | Link |
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| CN (1) | CN113266877A (en) |
| WO (1) | WO2022096036A1 (en) |
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| CN114183528A (en) * | 2021-11-25 | 2022-03-15 | 江苏海洋大学 | Tesla valve type opposite impact type self-sealing structure |
| WO2022096036A1 (en) * | 2021-06-01 | 2022-05-12 | 青岛海尔空调器有限总公司 | Air conditioner and fresh air system |
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| CN105509223A (en) * | 2015-12-17 | 2016-04-20 | 安徽华盛科技控股股份有限公司 | CIT pressure adjustable ventilation and purification system |
| US20190274230A1 (en) * | 2018-03-01 | 2019-09-05 | Dell Products L.P. | System and Method of Transferring Energy |
| CN111359354A (en) * | 2020-03-23 | 2020-07-03 | 莫炳妹 | Industrial waste gas treatment device utilizing Tesla valve principle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022096036A1 (en) * | 2021-06-01 | 2022-05-12 | 青岛海尔空调器有限总公司 | Air conditioner and fresh air system |
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Also Published As
| Publication number | Publication date |
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| WO2022096036A1 (en) | 2022-05-12 |
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