CN111059703A - Air volume control method - Google Patents
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- CN111059703A CN111059703A CN201911229183.3A CN201911229183A CN111059703A CN 111059703 A CN111059703 A CN 111059703A CN 201911229183 A CN201911229183 A CN 201911229183A CN 111059703 A CN111059703 A CN 111059703A
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- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000004378 air conditioning Methods 0.000 claims abstract description 73
- 238000001514 detection method Methods 0.000 claims abstract description 36
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 42
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 21
- 239000001569 carbon dioxide Substances 0.000 claims description 21
- 239000010865 sewage Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 23
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
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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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air volume control method. The air volume control method is suitable for an air conditioning system with a fresh air device, and comprises the following steps: detecting indoor pressure and outdoor pressure to obtain indoor pressure detection value P1And outdoor pressure detection value P2(ii) a According to the indoor pressureForce detection value P1And outdoor pressure detection value P2Obtaining a pressure difference delta P; adjusting fresh air inlet quantity Q of fresh air device according to pressure difference delta P1And/or the blow-off air quantity Q of the air conditioning system2So that the pressure difference ap is equal to the preset pressure value P. The invention effectively solves the problem that the energy consumption of the fresh air conditioning system in the prior art is larger in the fresh air exchanging process.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air volume control method.
Background
At present, in the use process of an air conditioner, in order to improve the indoor air quality, the indoor air quality is generally improved by adopting a fresh air introducing mode.
However, after the fresh air device is started, if outdoor fresh air is continuously introduced in a large amount, the load of a fresh air conditioning system is increased and the energy consumption is increased, so that the fresh air exchange efficiency is low; if the fresh air is introduced slowly in a small amount, the urgent requirement of a user on improvement of indoor air quality cannot be met, and the energy consumption of the fresh air conditioning system can be increased by discharging a large amount of indoor dirty air.
Disclosure of Invention
The invention mainly aims to provide an air volume control method to solve the problem that a fresh air conditioning system in the prior art is high in energy consumption in a fresh air exchange process.
In order to achieve the above object, the present invention provides an air volume control method, which is suitable for an air conditioning system having a fresh air device, and comprises: detecting indoor pressure and outdoor pressure to obtain indoor pressure detection value P1And outdoor pressure detection value P2(ii) a According to the indoor pressure detection value P1And outdoor pressure detection value P2Obtaining a pressure difference delta P; adjusting fresh air inlet quantity Q of fresh air device according to pressure difference delta P1And/or the blow-off air quantity Q of the air conditioning system2So that the pressure difference ap is equal to the preset pressure value P.
Further, the preset pressure value P satisfies: p is more than or equal to 5Pa and less than or equal to 10 Pa.
Further, adjust fresh air volume Q that advances of new trend device1And/or the blow-off air quantity Q of the air conditioning system2The method comprises the following steps: control the fresh air inlet quantity Q1And the sewage discharge air quantity Q2The ratio of (a) is within a preset range.
Further, the fresh air intake quantity Q is detected1The method comprises the following steps: a first flow sensor is arranged at a fresh air outlet of the fresh air device; the control module is used for acquiring the detection value of the first flow sensor and obtaining the fresh air inlet quantity Q discharged from the fresh air outlet according to the detection value1。
Further, the blow-down air quantity Q is detected2The method comprises the following steps: a second flow sensor is arranged at an outdoor air outlet of the air conditioning system; by means of a control moduleThe block obtains the detection value of the second flow sensor, and obtains the blow-down air quantity Q discharged from the outdoor air outlet according to the detection value2。
Further, adjust fresh air volume Q that advances of new trend device1And/or the blow-off air quantity Q of the air conditioning system2The method comprises the following steps: when the pressure difference delta P is smaller than the preset pressure value P, the fresh air inlet quantity Q is increased1And/or reducing blow-off air quantity Q2Until the pressure difference ap is equal to the preset pressure value P.
Further, the fresh air intake quantity Q is increased1The method comprises the following steps: increasing the rotating speed of a fan of the fresh air device; and/or increasing the inner diameter of a fresh air channel of the fresh air device; and/or increasing the inner diameter of a fresh air opening of the fresh air device.
Further, adjust fresh air volume Q that advances of new trend device1And/or the air discharge quantity Q of the air conditioning system2The method comprises the following steps: when the pressure difference delta P is larger than the preset pressure value P, the blow-off air quantity Q is increased2Until the pressure difference ap is equal to the preset pressure value P.
Further, the blow-down air quantity Q is increased2The method comprises the following steps: the rotation speed of an exhaust fan of the air conditioning system is increased.
Further, the air volume control method further includes: detecting indoor carbon dioxide concentration values; controlling the fresh air device to be started or closed according to the indoor carbon dioxide concentration value; and/or controlling the fresh air inlet quantity Q of the fresh air device according to the indoor carbon dioxide concentration value1。
Further, controlling the fresh air device to be started or closed according to the indoor carbon dioxide concentration value; and/or controlling the fresh air inlet quantity Q of the fresh air device according to the indoor carbon dioxide concentration value1The method comprises the following steps: when the indoor carbon dioxide concentration value is larger than the preset concentration value, the fresh air device is started, and the fan of the fresh air device is enabled to operate at the preset rotating speed value.
By applying the technical scheme of the invention, the indoor pressure and the outdoor pressure are detected in the operation process of the air conditioning system to obtain the indoor pressure detection value P1And outdoor pressure detection value P2Then according to the detected value P of the indoor pressure1And outdoor pressure detection value P2Deriving a pressure difference ΔP, adjusting the fresh air inlet quantity Q of the fresh air device according to the pressure difference delta P1And/or the blow-off air quantity Q of the air conditioning system2And the pressure difference delta P is equal to the preset pressure value P, so that the indoor state is ensured to be in a positive pressure state, the operation energy consumption of the air conditioning system is increased as outdoor air enters the indoor space through a door seam or a window seam, and the problem that the energy consumption of the fresh air conditioning system is large in the fresh air exchange process in the prior art is solved, so that the air conditioning system reaches the optimal energy consumption state in the fresh air inlet process.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a flow chart of an embodiment of an air volume control method according to the present invention;
fig. 2 shows a flowchart of an embodiment of an air volume control method according to the present invention when the pressure difference is smaller than a preset pressure value; and
fig. 3 shows a flowchart of an embodiment of an air volume control method according to the present invention when the pressure difference is greater than a preset pressure value.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problem that a fresh air conditioning system in the prior art can consume large energy in the fresh air exchange process, the application provides an air volume control method.
As shown in fig. 1, the air volume control method is suitable for an air conditioning system with a fresh air device, and comprises the following steps:
detecting indoor pressure and outdoor pressure to obtain indoor pressure detection value P1And outdoor pressure detection value P2；
According to the indoor pressure detection value P1And outdoor pressure detection value P2Obtaining a pressure difference delta P;
adjusting fresh air inlet quantity Q of fresh air device according to pressure difference delta P1And/or the blow-off air quantity Q of the air conditioning system2So that the pressure difference ap is equal to the preset pressure value P.
By applying the technical scheme of the embodiment, the indoor pressure and the outdoor pressure are detected in the running process of the air conditioning system so as to obtain the indoor pressure detection value P1And outdoor pressure detection value P2Then according to the detected value P of the indoor pressure1And outdoor pressure detection value P2Obtaining the pressure difference delta P, and adjusting the fresh air inlet quantity Q of the fresh air device according to the pressure difference delta P1And/or the blow-off air quantity Q of the air conditioning system2And the pressure difference delta P is equal to the preset pressure value P, so that the indoor state is ensured to be in a positive pressure state, the operation energy consumption of the air conditioning system is increased as outdoor air enters the indoor space through a door seam or a window seam, and the problem that the energy consumption of the fresh air conditioning system is large in the fresh air exchange process in the prior art is solved, so that the air conditioning system reaches the optimal energy consumption state in the fresh air inlet process.
In this embodiment, air conditioning system has the new trend device, and the new trend device gets into indoor with outdoor new trend to promote indoor air quality. The air conditioning system also has a sewage air discharging function so as to discharge indoor sewage air into the outdoor space, and further realize mutual circulation between indoor fresh air and outdoor air, so that the indoor air is kept fresh and clean, and further the use experience of a user is improved.
In the present embodiment, the preset pressure value P satisfies: p is more than or equal to 5Pa and less than or equal to 10 Pa. Therefore, the value range ensures that the indoor is in a positive pressure state on one hand, and avoids impurities such as outdoor dust and the like from entering the indoor; on the other hand, the fresh air exchange efficiency is improved, and the energy consumption of the air conditioning system is reduced.
In this embodiment, the fresh air intake Q of the fresh air device is adjusted1And the blow-off air quantity Q of the air conditioning system2The method comprises the following steps: control the fresh air inlet quantity Q1And the sewage discharge air quantity Q2The ratio of (a) is within a preset range. Thus, the fresh air inlet quantity Q of the fresh air device is adjusted1And the blow-off air quantity Q of the air conditioning system2In the process of (2), the fresh air inlet quantity Q needs to be ensured1And the sewage discharge air quantity Q2The ratio of (2) is within a preset range, so that the operation reliability and the working efficiency of the air-conditioning system are improved.
In the present embodiment, the intake fresh air amount Q is detected1The method comprises the following steps: a first flow sensor is arranged at a fresh air outlet of the fresh air device; the control module is used for acquiring the detection value of the first flow sensor and obtaining the fresh air inlet quantity Q discharged from the fresh air outlet according to the detection value1。
Specifically, the first flow sensor is used for detecting the air output at the fresh air outlet so as to obtain the fresh air inlet quantity Q1And further make the user more easily obtain the fresh air inlet quantity Q1Reduce the fresh air inlet quantity Q1The difficulty is obtained, and the control by a user is convenient.
In this embodiment, the blow-down air volume Q is detected2The method comprises the following steps: a second flow sensor is arranged at an outdoor air outlet of the air conditioning system; the control module is used for acquiring the detection value of the second flow sensor, and the blow-down air quantity Q discharged from the outdoor air outlet is obtained according to the detection value2。
Specifically, the second flow sensor is used for detecting the air output at the outdoor air outlet to obtain the blow-down air quantity Q2And further make the user obtain the blow-off air quantity Q more easily2Reducing the blow-off quantity Q2The difficulty is obtained, and the control by a user is convenient.
As shown in FIG. 2, the fresh air inlet quantity Q of the fresh air device is adjusted1And/or the blow-down air volume of the air conditioning systemQ2The method comprises the following steps: when the pressure difference delta P is smaller than the preset pressure value P, the fresh air inlet quantity Q is increased1And reduces the blow-off air quantity Q2Until the pressure difference ap is equal to the preset pressure value P. Specifically, when the air conditioning system is in a cooling or heating mode and the pressure difference Δ P is smaller than the preset pressure value P, the user controls the air conditioning system to increase the fresh air intake Q1And reduces the blow-off air quantity Q2And reducing the energy consumption of the air conditioning system until the pressure difference delta P is equal to the preset pressure value P.
In other embodiments not shown in the drawings, the amount of fresh air intake Q of the fresh air device is adjusted1And/or the blow-off air quantity Q of the air conditioning system2The method comprises the following steps: when the pressure difference delta P is smaller than the preset pressure value P, only the fresh air inlet quantity Q is increased1Until the pressure difference ap is equal to the preset pressure value P. Specifically, when the air conditioning system is in a cooling or heating mode and the pressure difference Δ P is smaller than the preset pressure value P, the user controls the air conditioning system to increase the fresh air intake Q1And reducing the energy consumption of the air conditioning system until the pressure difference delta P is equal to the preset pressure value P.
In other embodiments not shown in the drawings, the amount of fresh air intake Q of the fresh air device is adjusted1And/or the blow-off air quantity Q of the air conditioning system2The method comprises the following steps: when the pressure difference delta P is smaller than the preset pressure value P, only the blow-off air quantity Q is reduced2Until the pressure difference ap is equal to the preset pressure value P. Specifically, when the air conditioning system is in a cooling or heating mode and the pressure difference Δ P is smaller than the preset pressure value P, the user controls the air conditioning system to reduce the blow-down air volume Q2And reducing the energy consumption of the air conditioning system until the pressure difference delta P is equal to the preset pressure value P.
In the present embodiment, the intake fresh air amount Q is increased1The method comprises the following steps: the fan rotating speed of the fresh air device is increased, the inner diameter of a fresh air channel of the fresh air device is increased, and the inner diameter of a fresh air opening of the fresh air device is increased. Thus, the arrangement can quickly increase the fresh air intake quantity Q1Therefore, the air conditioning system can be adjusted quickly, the time consumed by adjustment is shortened, and the air conditioning system is always in a low energy consumption state.
It is noted thatLarge fresh air inlet quantity Q1The method of (3) is not limited thereto. In other embodiments not shown in the drawings, the intake air quantity Q is increased1The method comprises the following steps: the fan rotating speed of the fresh air device is increased, and the inner diameter of a fresh air channel of the fresh air device is increased. Thus, the arrangement can quickly increase the fresh air intake quantity Q1Therefore, the air conditioning system can be adjusted quickly, the time consumed by adjustment is shortened, and the air conditioning system is always in a low energy consumption state.
In other embodiments not shown in the drawings, the intake air quantity Q is increased1The method comprises the following steps: the fan rotating speed of the fresh air device is increased, and the inner diameter of a fresh air port of the fresh air device is increased. Thus, the arrangement can quickly increase the fresh air intake quantity Q1Therefore, the air conditioning system can be adjusted quickly, the time consumed by adjustment is shortened, and the air conditioning system is always in a low energy consumption state.
In other embodiments not shown in the drawings, the intake air quantity Q is increased1The method comprises the following steps: the internal diameter of the fresh air channel of the fresh air device is increased, and the internal diameter of the fresh air opening of the fresh air device is increased. Thus, the arrangement can quickly increase the fresh air intake quantity Q1Therefore, the air conditioning system can be adjusted quickly, the time consumed by adjustment is shortened, and the air conditioning system is always in a low energy consumption state.
In other embodiments not shown in the drawings, the intake air quantity Q is increased1The method comprises the following steps: only the fan speed of the fresh air device is increased. Thus, the setting makes the operation of the fresh air device easier and simpler for users, and the fresh air inlet quantity Q can be increased only by increasing the rotating speed of the fan1And the operation difficulty is reduced. Optionally, the fan is operated at maximum speed to achieve a fresh air intake Q1Fast adjustment of (2).
In other embodiments not shown in the drawings, the intake air quantity Q is increased1The method comprises the following steps: only the inner diameter of the fresh air channel of the fresh air device is increased. Thus, the setting makes the operation of the fresh air device easier and simpler for users, and the fresh air inlet quantity Q can be increased only by increasing the inner diameter of the fresh air channel of the fresh air device1And the operation difficulty is reduced. Optionally, the inner diameter of the fresh air channel is adjusted to be the maximum value so as to realize fresh air inletAir quantity Q1Fast adjustment of (2).
In other embodiments not shown in the drawings, the intake air quantity Q is increased1The method comprises the following steps: only the inner diameter of the fresh air inlet of the fresh air device is increased. The setting makes the operation of the user to the fresh air device easier and simpler, and the fresh air inlet quantity Q can be increased only by increasing the inner diameter of the fresh air inlet of the fresh air device1And the operation difficulty is reduced. Optionally, the inner diameter of the fresh air inlet is adjusted to the maximum value so as to realize the fresh air inlet quantity Q1Fast adjustment of (2).
As shown in FIG. 3, the fresh air inlet quantity Q of the fresh air device is adjusted1And/or the air discharge quantity Q of the air conditioning system2The method comprises the following steps: when the pressure difference delta P is larger than the preset pressure value P, the blow-off air quantity Q is increased2Until the pressure difference ap is equal to the preset pressure value P. Specifically, when the air conditioning system is in a cooling or heating mode and the pressure difference Δ P is greater than a preset pressure value P, the user controls the air conditioning system to increase the blow-down air volume Q2And maintain the fresh air inlet quantity Q1And the pressure difference delta P is not changed until the pressure difference delta P is equal to the preset pressure value P, so that the energy consumption of the air conditioning system is reduced.
In the present embodiment, the blow-down air volume Q is increased2The method comprises the following steps: the rotation speed of an exhaust fan of the air conditioning system is increased. Optionally, the exhaust fan is operated at maximum speed to rapidly increase the exhaust air flow Q2Therefore, the air conditioning system can be adjusted quickly, the time consumed by adjustment is shortened, and the air conditioning system is always in a low energy consumption state.
In this embodiment, the air volume control method further includes:
detecting indoor carbon dioxide concentration values;
controlling the fresh air device to be started or closed according to the indoor carbon dioxide concentration value; and/or controlling the fresh air inlet quantity Q of the fresh air device according to the indoor carbon dioxide concentration value1。
Specifically, when indoor air is dirty, namely the indoor carbon dioxide concentration value exceeds a first set concentration value, the fresh air device is controlled to start. When the indoor air quality is good, namely the indoor carbon dioxide concentration value is smaller than the preset concentration value, the fresh air device is controlled to be closedAnd the air conditioning system does not perform fresh air inlet operation any more. When the indoor carbon dioxide concentration value exceeds a second set concentration value, the fresh air inlet quantity Q of the fresh air device is increased1So as to realize quick fresh air change. Wherein, the first set concentration value is smaller than the second set concentration value.
In the embodiment, the fresh air device is controlled to be started or closed according to the indoor carbon dioxide concentration value; and/or controlling the fresh air inlet quantity Q of the fresh air device according to the indoor carbon dioxide concentration value1The method comprises the following steps: when the indoor carbon dioxide concentration value is larger than the preset concentration value, the fresh air device is started, and the fan of the fresh air device is enabled to operate at the preset rotating speed value.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
during the operation of the air conditioning system, the indoor pressure and the outdoor pressure are detected to obtain a detected value P of the indoor pressure1And outdoor pressure detection value P2Then according to the detected value P of the indoor pressure1And outdoor pressure detection value P2Obtaining the pressure difference delta P, and adjusting the fresh air inlet quantity Q of the fresh air device according to the pressure difference delta P1And/or the blow-off air quantity Q of the air conditioning system2And the pressure difference delta P is equal to the preset pressure value P, so that the indoor state is ensured to be in a positive pressure state, the operation energy consumption of the air conditioning system is increased as outdoor air enters the indoor space through a door seam or a window seam, and the problem that the energy consumption of the fresh air conditioning system is large in the fresh air exchange process in the prior art is solved, so that the air conditioning system reaches the optimal energy consumption state in the fresh air inlet process.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An air volume control method is suitable for an air conditioning system with a fresh air device, and is characterized by comprising the following steps:
detecting indoor pressure and outdoor pressure to obtain indoor pressure detection value P1And outdoor pressure detection value P2；
According to the indoor pressure detection value P1And the outdoor pressure detection value P2Obtaining a pressure difference delta P;
adjusting the fresh air inlet quantity Q of the fresh air device according to the pressure difference delta P1And/or the blow-off air quantity Q of the air conditioning system2So that said pressure difference Δ P is equal to a preset pressure value P.
2. The air volume control method according to claim 1, characterized in that the preset pressure value P satisfies: p is more than or equal to 5Pa and less than or equal to 10 Pa.
3. Air volume control according to claim 1The manufacturing method is characterized in that the fresh air inlet quantity Q of the fresh air device is adjusted1And/or the blow-off air quantity Q of the air conditioning system2The method comprises the following steps:
controlling the fresh air intake quantity Q1And the sewage discharge air quantity Q2The ratio of (a) is within a preset range.
4. The air volume control method according to claim 1, characterized in that the intake air volume Q is detected1The method comprises the following steps:
a first flow sensor is arranged at a fresh air outlet of the fresh air device;
a control module is used for obtaining the detection value of the first flow sensor, and the fresh air inlet quantity Q discharged from the fresh air outlet is obtained according to the detection value1。
5. The air volume control method according to claim 1, characterized in that the blow-down air volume Q is detected2The method comprises the following steps:
a second flow sensor is arranged at an outdoor air outlet of the air conditioning system;
a control module is used for obtaining the detection value of the second flow sensor, and the blow-down air quantity Q discharged from the outdoor air outlet is obtained according to the detection value2。
6. The air volume control method according to claim 1, wherein a fresh air volume Q of the fresh air device is adjusted1And/or the blow-off air quantity Q of the air conditioning system2The method comprises the following steps:
when the pressure difference delta P is smaller than the preset pressure value P, the fresh air inlet quantity Q is increased1And/or reducing blow-off air quantity Q2Until said pressure difference Δ P is equal to a preset pressure value P.
7. The air volume control method according to claim 6, characterized in that the intake air volume Q is increased1The method comprises the following steps:
increasing the fan rotating speed of the fresh air device; and/or
Increasing the inner diameter of a fresh air channel of the fresh air device; and/or
And increasing the inner diameter of a fresh air opening of the fresh air device.
8. The air volume control method according to claim 1, wherein a fresh air volume Q of the fresh air device is adjusted1And/or the exhaust air volume Q of the air conditioning system2The method comprises the following steps:
when the pressure difference delta P is larger than the preset pressure value P, the blow-off air quantity Q is increased2Until said pressure difference Δ P is equal to a preset pressure value P.
9. The air volume control method according to claim 8, characterized in that the blow-down air volume Q is increased2The method comprises the following steps:
increasing the rotational speed of an exhaust fan of the air conditioning system.
10. The air volume control method according to claim 1, characterized by further comprising:
detecting indoor carbon dioxide concentration values;
controlling the fresh air device to be started or closed according to the indoor carbon dioxide concentration value; and/or controlling the fresh air inlet quantity Q of the fresh air device according to the indoor carbon dioxide concentration value1。
11. The air volume control method according to claim 10, wherein the fresh air device is controlled to be turned on or off according to the indoor carbon dioxide concentration value; and/or controlling the fresh air inlet quantity Q of the fresh air device according to the indoor carbon dioxide concentration value1The method comprises the following steps:
and when the indoor carbon dioxide concentration value is greater than a preset concentration value, starting the fresh air device, and enabling a fan of the fresh air device to operate at a preset rotating speed value.
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