CN113251518A - Fresh air ventilation system and control method - Google Patents

Fresh air ventilation system and control method Download PDF

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Publication number
CN113251518A
CN113251518A CN202110459684.1A CN202110459684A CN113251518A CN 113251518 A CN113251518 A CN 113251518A CN 202110459684 A CN202110459684 A CN 202110459684A CN 113251518 A CN113251518 A CN 113251518A
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China
Prior art keywords
air
room
fresh air
range hood
pressure
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CN202110459684.1A
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Chinese (zh)
Inventor
刘喜
王岩
孟永哲
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Qingdao Haier Intelligent Cooking Appliances Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Intelligent Cooking Appliances Co Ltd
Haier Smart Home Co Ltd
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Priority to CN202110459684.1A priority Critical patent/CN113251518A/en
Publication of CN113251518A publication Critical patent/CN113251518A/en
Pending legal-status Critical Current

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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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a fresh air ventilation system and a control method, wherein the fresh air ventilation system comprises a range hood, a fan and a controller, wherein the range hood is at least used for discharging air in at least one room outwards; the air inlet device is used for communicating the interior of at least one room with the external environment and introducing fresh air into the room; the pressure detection device is used for detecting the air pressure in at least one room and transmitting the air pressure to the central control module; and the central control module is at least used for controlling the opening and closing of the air inlet device according to the acquired air pressure parameter information. The invention utilizes the range hood as the exhaust device of the fresh air ventilation system to exhaust the air to be replaced, thereby not only pumping the oil smoke in the kitchen to play the function of the common range hood, but also exhausting the air in the corresponding room when the air in other rooms needs to be replaced, supplementing fresh air by matching with the air inlet device and replacing the air; in addition, the pressure detection device can detect the pressure in the room, and the air inlet device and the range hood are determined to operate according to the pressure condition in the room.

Description

Fresh air ventilation system and control method
Technical Field
The invention belongs to the field of household appliances, and particularly relates to a fresh air ventilation system and a control method.
Background
At present, with the rapid development of society and the rapid improvement of people's living standard, healthy, energy-saving, simple, reliable fresh air ventilation system and fresh air equipment have become the focus of common attention of buildings, air conditioner designs and users, and fresh air ventilators are born in response to the requirements. The fresh air ventilator is used for replacing indoor air, the indoor air can be kept fresh, however, a complete fresh air ventilator system is not valuable, few is thousands of yuan, more is tens of thousands of yuan, the installation is complex, and the fresh air ventilator can be popularized and used by people who are not ordinary. However, the range hood becomes a necessary product for the existing families, the popularization rate is very high, and the existing open kitchen with a building structure is very common, so that the range hood can be considered to replace a power device, namely a fan, of the existing fresh air ventilation system to exhaust indoor air to the outdoor.
Chinese patent application No. CN201610598493.2 discloses an intelligent fresh air ventilation device for improving indoor air environment, which utilizes existing fans such as kitchen range hoods and toilet exhaust fans to perform air extraction, and uses an intelligent air inlet with functions of filtering, dedusting, heating, opening and closing to perform air inlet so as to improve indoor air environment.
Fresh air ventilation device in the above-mentioned scheme, though utilized the fan of suction lampblack absorber to carry out convulsions, whole trade the wind process and be a limit process of airing exhaust while mending wind, can have the condition that just gets into indoor new trend and be taken out by the fan at once again, trade wind inefficiency, extravagant energy. In addition, the range hood can only ventilate indoors by means of air exhaust and air supplement, the ventilation mode is single, even if the indoor air quality is not poor, the indoor air needs to be refreshed by means of air exhaust and air supplement, and in addition, the temperature in winter and summer is too low or too high, the fresh air needs to be heated or cooled while air supplement is carried out, so that a large amount of energy is consumed.
The present invention has been made in view of the above technical drawbacks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a ventilator which is used as an exhaust device, can improve the efficiency of replacing air in a room, can purify the air in the room by using the self-purification function of the ventilator and saves energy.
In order to solve the technical problems, the invention adopts the technical scheme that:
a fresh air ventilation system comprises a fresh air supply device,
the range hood is at least used for discharging air in at least one room outwards;
the air inlet device is used for communicating the interior of at least one room with the external environment and introducing fresh air into the room;
the pressure detection device is used for detecting the air pressure in at least one room and transmitting the air pressure to the central control module;
and the central control module is at least used for controlling the opening and closing of the air inlet device according to the acquired air pressure parameter information.
By adopting the scheme, the range hood is used as the exhaust device of the fresh air ventilation system, air to be replaced can be exhausted, oil smoke in a kitchen can be extracted when a user cooks, the function of the common range hood is exerted, air in other rooms can be exhausted when the air in the rooms needs to be replaced, and the air in the rooms is supplemented with new air by matching with the air inlet device to replace the air in the rooms. In addition, the pressure detection device can detect the pressure in the room, and the exhaust actions of the air inlet device and the range hood are determined according to the pressure condition in the room.
Further, the air intake device includes,
the air inlet unit is communicated with the inside of at least one room and the external environment and is used for introducing fresh air into the room;
and the electric valve is arranged on the air inlet unit and used for controlling the on-off of the air path according to the control information sent by the central control module.
By adopting the scheme, the electric valve can automatically control the on-off of the air path according to the control information sent by the central control module, and the intelligence of the fresh air ventilation system is realized.
Furthermore, the fresh air treatment device is used for treating fresh air introduced into the room;
the fresh air processing device comprises a purification unit for filtering and purifying fresh air introduced into a room;
preferably, the purification unit is mounted on the intake unit;
preferably, the purification unit is installed inside the air intake unit;
preferably, the fresh air processing device comprises a temperature adjusting unit which is arranged on the air inlet unit and used for heating or cooling fresh air introduced into the room;
preferably, the temperature adjusting unit is installed at the downstream of the purifying unit and used for heating or cooling the purified fresh air;
preferably, the air inlet unit is further provided with a temperature detection device for detecting the temperature of the fresh air introduced into the room.
Through adopting above-mentioned scheme, purification unit can filter and purification treatment the new trend that lets in the room, guarantees the quality of the air that gets into in the room. In addition, the purification unit is arranged in the air inlet unit, and only the fresh air entering the room through the air inlet unit can be treated, so that unnecessary purification and resource waste are prevented.
The temperature detection device is matched with the temperature adjusting unit, air introduced into a room or purified air is heated or cooled, the air temperature of newly changed air is guaranteed to meet the air temperature of user requirements, the phenomenon that the air temperature in the room is greatly increased or decreased due to the fact that the temperature difference between the newly changed air and the room is too large is prevented, and a poor experience effect is brought to a user. In addition, the temperature adjusting unit is positioned at the downstream of the purifying unit, so that unnecessary heating or cooling can be avoided, the heating or cooling efficiency can be improved, and energy can be saved.
Furthermore, the range hood is a dual-purpose range hood integrating an external exhaust type and a circulating type;
preferably, the range hood comprises a range hood panel for displaying and controlling the operation of the range hood.
By adopting the scheme, the air in the room can be renewed by using the outward discharge function under the condition of poor air quality in the room; when the air quality in the room is not very poor, the air in the room is filtered and purified by utilizing the self-purification function of the range hood and then is recycled in the room, so that the constancy of the air temperature and the humidity in the room is ensured, and the resource waste caused by air exchange, heating or cooling can be reduced. In addition, the range hood is provided with an independent range hood panel, the operation of the range hood is controlled, and the air pumping and exhausting functions of the range hood can be exerted independently.
Further, the fresh air ventilation system also comprises an operation and control module used for operating the running state of the fresh air ventilation system;
the control module comprises a terminal control unit, a control module and a control module, wherein the terminal control unit is used for receiving and displaying the running state and/or detection information of the fresh air ventilation system and controlling the running or stopping of the fresh air ventilation system;
preferably, the terminal control unit comprises a mobile terminal for receiving and displaying the operation state and/or detection information of the fresh air ventilation system, and remotely controlling the operation or stop of the fresh air ventilation system.
By adopting the above scheme, the user can acquire this new trend air exchange system's operation conditions and detected data through multiple mode to and control this new trend air exchange system through multiple mode, and control mode is diversified, provides convenience for the user.
Another objective of the present invention is to provide a control method of the above fresh air ventilating system, which includes the steps of,
receiving an exhaust signal;
starting the range hood, and exhausting air in at least one room to the external environment;
and detecting the pressure in the at least one room, and starting the air inlet device to introduce fresh air into the room when the pressure is judged to be reduced to a set value P1.
By adopting the scheme, when the air in the room is discharged to a certain degree, the air inlet device is opened to ventilate the room, air is supplied while exhausting air, the air to be replaced in the room can be discharged as much as possible, the ventilation rate is increased, and the ventilation efficiency is improved.
Furthermore, after the air inlet device is started, the signal for purifying the fresh air is received, and the fresh air to be fed into the room is purified.
By adopting the scheme, the fresh air introduced into the room is purified, the quality of the air entering the room is ensured, and the physical and mental health of a user is facilitated.
Further, after purifying the fresh air, detecting the temperature of the purified fresh air, and comparing the temperature with a preset value;
if the temperature of the purified fresh air is lower than a first preset value T1, heating the purified fresh air;
if the temperature of the purified fresh air is higher than a second preset value T2, cooling the purified fresh air;
otherwise, directly introducing the purified fresh air into the room;
the T1 < T2.
By adopting the scheme, the purified air is heated or cooled, so that the temperature in a room can be kept within a certain range, and the air temperature of the newly-exchanged air is ensured to meet the air temperature required by a user.
And further, when the pressure in the room is detected to be greater than a set value P2, stopping exhausting, closing the air inlet device and stopping introducing fresh air into the room.
By adopting the scheme, the pressure in the room can be ensured, and the phenomenon that the normal life of a user is influenced due to overhigh or overlow air pressure in the room is prevented.
Further, after stopping exhausting and introducing fresh air into the room, starting an internal circulation program of the range hood, and purifying and circulating the air in the room by the range hood through a self purification and circulation device.
By adopting the above scheme, when the air in the room is changed to a certain degree, the air quality in the room is not very poor, or the air quality in the room is not very poor, the purification function of the range hood is utilized, the air in the room is filtered and purified and then is recycled in the room, the constancy of the air temperature and the humidity in the room can be ensured, and the resource waste caused by air change, heating or cooling can be reduced.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The range hood is used as a power device of the fresh air ventilation system, air to be replaced can be discharged, oil smoke in a kitchen can be pumped and discharged when a user cooks, the function of the common range hood is exerted, air in a room can be discharged when the air in the room needs to be replaced, and the air in the room is replaced by supplementing new air through matching with the air inlet device. In addition, the pressure detection device can detect the pressure in the room, and the exhaust actions of the air inlet device and the range hood are determined according to the pressure condition in the room.
2. The purification unit can filter and purify the fresh air introduced into the room, so that the quality of the air entering the room is ensured; the temperature detection device is matched with the temperature adjusting unit to heat or cool the air introduced into the room or the purified air, so that the air temperature of the newly-changed air is ensured to meet the air temperature required by a user, and the phenomenon that the air temperature in the room is greatly increased or decreased due to the overlarge temperature difference between the newly-changed air and the room is prevented.
3. The range hood is a dual-purpose range hood integrating an external exhaust type mode and a circulating type mode, the external exhaust or circulating mode of the range hood can be selected according to needs, the function of treating air is exerted to the maximum extent, and unnecessary resource waste is prevented.
4. The control mode of the fresh air ventilation system is diversified, and convenience is provided for users.
5. Utilize pressure detection device to detect the pressure in the room, the process of control exhaust and admit air, when the room in the air discharge certain degree, open air inlet unit again and ventilate, replace the limit air supplement of exhausting, can be as much as possible with the room in the air discharge of treating the change for the speed of taking a breath, improve the efficiency of taking a breath. In addition, when the pressure drops to the set value P1, the air inlet device is opened, so that the harm to the health of the user caused by too low air pressure can be prevented, the difficulty in exhausting caused by too low air pressure in the room can be prevented, and the huge noise generated by increasing the power of the exhausting under the condition of difficult exhausting can be avoided.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of the new air ventilation system of the present invention;
FIG. 2 is a flow chart of a control method of the fresh air ventilating system according to the present invention;
fig. 3 is a flow chart illustrating a control method of the fresh air ventilating system according to an embodiment of the present invention.
In the figure: 1. a central control module; 2. a range hood; 21. an exhaust device; 22. a panel of a range hood; 23. a purification and circulation device; 3. an air intake device; 31. an air intake unit; 32. an electrically operated valve; 4. a pressure detection device; 5. a fresh air processing device; 51. a purification unit; 52. a temperature adjusting unit; 6. a temperature detection device; 7. a control module; 71. a terminal control unit; 711. a mobile terminal; 712. a control panel.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the fresh air ventilation system of the present invention includes a range hood 2 at least for exhausting air in at least one room; the air inlet device 3 is used for communicating the interior of at least one room with the external environment and introducing fresh air into the room; the pressure detection device 4 is used for detecting the air pressure in at least one room and transmitting the air pressure to the central control module 1; and the central control module 1 is at least used for controlling the opening and closing of the air inlet device 3 according to the acquired air pressure parameter information.
The fresh air ventilation system of the invention utilizes the range hood 2 as an exhaust device of the fresh air ventilation system, can exhaust air to be replaced, can extract oil smoke in a kitchen when a user cooks and plays the function of a common range hood, and can exhaust air in a room when the air in other rooms needs to be replaced, and the air in the room is replaced by supplementing new air in cooperation with the air inlet device 3. The pressure detection device 4 can detect the pressure in the room, and determines the intake of the intake device 3 and the exhaust of the range hood 2 according to the pressure state in the room.
Furthermore, the fresh air ventilation system also comprises an air quality detection device which is arranged in the room, is connected with the range hood 2 in a signal transmission way and is used for detecting the air quality in the room.
The air quality detection device includes one or more of a CO2 sensor, a PM2.5 sensor, a TVOC sensor, and the like.
The range hood 2 comprises an exhaust device 21, and the exhaust device 21 comprises a fan for extracting air and an exhaust pipe for guiding the extracted air out of the room.
The range hood 2 is installed in a kitchen, the air inlet device 3 is provided with at least one air inlet device and is at least installed in a room far away from the kitchen, the room provided with the air inlet device 3 can be communicated with other rooms in an opening and closing mode through a door or a communication device, the exhaust device 21 and the room provided with the air inlet device 3 can be communicated in an opening and closing mode through the door or the communication device, a fresh air passage can be formed in the whole room, and the fresh air passage is used for replacing air in at least one room.
In one embodiment, the air inlet devices 3 are respectively installed in a kitchen and other rooms including a living room, a bedroom, a bathroom and the like, and the other rooms can form a passage with the exhaust device 21 of the range hood 2, so that fresh air entering the other rooms from the air inlet unit 31 can be finally exhausted through the exhaust device 21.
Because the air inlet devices 3 are arranged in all the rooms, when the air quality of one room is poor, doors of other rooms or communication devices for communicating the exhaust device 21 with other rooms can be correspondingly closed, and only the room with poor air quality is communicated with the exhaust device 21, so that a passage is formed between the room with poor air quality and the exhaust device 21, local ventilation can be realized, and energy consumption is saved.
The pressure detection device 4 is installed in a room where the air intake device 3 is installed, and/or is installed on a passage formed by the room where the air intake device 3 is installed and the exhaust device 21, or the pressure detection device 4 is installed in all rooms.
As an embodiment, the living room is an open space, and other rooms are communicated with the kitchen through doors of all rooms and the living room, the pressure detection device 4 is at least installed in the living room, and after the room to be replaced is communicated with the exhaust device 21, the pressure detection device plays a role in detecting pressure under the action of air circulation pressure equalization.
As a preferable scheme of the above scheme, a pressure detection device 4 is provided in each room, and the pressure value in the ventilated room is acquired correspondingly.
The air inlet device 3 comprises an air inlet unit 31 which is communicated with the inside of at least one room and the outside environment and is used for introducing fresh air into the room from the outside environment; and the electric valve 32 is installed on the air inlet unit 31 and used for controlling the on-off of an air path according to the control information sent by the central control module 1.
The air inlet unit 31 is an air inlet pipe or an air inlet bin which is communicated with the inside of the room and the external environment, and the electric valve 32 is arranged at the upstream of the air inlet pipe or the air inlet bin and is positioned at the inlet end of the air inlet pipe or the air inlet bin or at a position close to the inlet end.
The air intake device 3 further includes an air intake power device for blowing air into the air intake unit 31 from the outside.
The fresh air ventilation system also comprises a fresh air processing device 5 which is used for processing the fresh air introduced into the room; the fresh air processing device 5 comprises a purification unit 51 for filtering and purifying fresh air introduced into the room.
The purification unit 51 is installed on the air intake unit 31, and further, the purification unit 51 is installed inside the air intake unit 31 and located downstream of the electric valve 32, and is used for purifying fresh air to be introduced into a room.
The purification unit 51 comprises a filter, a filter screen, an ozone generator and the like, wherein the filter comprises a non-woven fabric layer, a styrene-divinylbenzene crosslinked adsorption resin filter layer, an activated carbon layer, a bamboo charcoal fiber layer, a nylon layer, a wool fiber layer, a polyphenylene sulfide fiber layer, a glass fiber layer, a carbon nanofiber fabric layer and the like.
The purification unit 51 of the invention can filter and purify the fresh air to be introduced into the room, thereby ensuring the quality of the fresh air entering the room. Further, the purifying unit 51 is installed inside the air intake unit 31 and located downstream of the electric valve 32, and only fresh air entering the room through the air intake unit 31 can be processed, thereby preventing unnecessary purification and wasting resources.
The fresh air processing device 5 comprises a temperature adjusting unit 52 which is arranged on the air inlet unit 31 and used for heating or cooling fresh air introduced into a room.
Further, the temperature adjusting unit 52 is located downstream of the purifying unit 51, and is used for heating or cooling the purified fresh air.
The air inlet unit 31 is further provided with a temperature detection device 6 for detecting the temperature of the fresh air to be introduced into the room and/or the temperature of the processed fresh air.
Further, the temperature detection device 6 is installed downstream of the purification unit 51, and is configured to detect the temperature of the purified fresh air and the temperature of the heated/cooled fresh air.
Preferably, the air inlet unit 31 comprises a purifying chamber and a fresh air temperature processing chamber, a temperature detection device 6 is arranged in the fresh air temperature processing chamber, the temperature detection device 6 in the fresh air temperature processing chamber detects the temperature of fresh air which is purified and then introduced into the fresh air temperature processing chamber, if the temperature of the fresh air meets the requirement, the fresh air is directly introduced into the room, otherwise, the fresh air is heated/cooled through the temperature adjusting unit 52 until the temperature of the fresh air meets the requirement. In the scheme, a valve for controlling fresh air to enter the room from the fresh air temperature processing chamber is arranged on the fresh air temperature processing chamber, if the temperature of the fresh air meets the requirement, the valve is opened, otherwise, the valve is in a closed state, and the valve is an electrically controlled electric valve.
The temperature detection device 6 of the invention is matched with the temperature adjusting unit 52 to heat or cool the purified air, so as to ensure that the temperature of the newly-replaced air meets the air temperature required by the user, prevent the air temperature in the room from greatly rising or falling due to overlarge temperature difference between the newly-replaced air and the room, and bring a bad experience effect to the user. In addition, the temperature adjusting unit 52 is located downstream of the purifying unit 51, which can avoid unnecessary heating or cooling, improve heating or cooling efficiency, and save energy.
The range hood 2 is a dual-purpose range hood integrating an external exhaust type and a circulation type, that is, the range hood 2 further comprises a purification and circulation device 23. The purification and circulation device 23 comprises a purification part, the purification and circulation device 23 utilizes a fan to extract air in a room, the extracted air is introduced into the purification part, and then purified fresh air is discharged into the room from the other end of the purification part through an exhaust part, so that the purpose of purifying the air in the room is achieved.
Preferably, the range hood 2 comprises a range hood panel 22 for displaying and controlling the operation of the range hood 2, and the range hood panel 22 only controls the operation of the range hood 2, so that the range hood 2 can be independently opened to exhaust when a user cooks three meals a day, and then the effect of automatic air supply is achieved through the pressure difference between the room and the external environment, and the purpose of air exchange in the room is achieved. Because the oil smoke is larger in the cooking process, if the air inlet device 3 of the fresh air ventilation system performs ventilation, the energy consumption is larger, at the moment, only the range hood 2 is used for discharging the oil smoke, the aim of replacing the air in the kitchen is achieved through the natural pressure difference, and the resources can be saved. If the user feels that the air exchange rate is slow under the condition, the fresh air exchange system can be started to exchange air under the condition that the range hood 2 discharges most of oil smoke, so that the purposes of improving the air exchange rate and saving energy are achieved; further, when the fresh air ventilation system changes air to the standard that the air quality in the room is close to the requirement of the user, the purification and circulation device 23 of the range hood 2 can be started, the range hood 2 is used for purifying the air in the room, and resource waste caused by heating/cooling the purified fresh air can be avoided.
The range hood 2 of the invention is a dual-purpose range hood integrating an external exhaust type and a circulation type, and can replace the air in a room by using an external exhaust function under the condition of poor air quality in the room; when the air quality in the room is not very poor, the air in the room is filtered and purified by utilizing the self-purification function of the range hood 2 and then is recycled in the room, so that the constancy of the air temperature and the humidity in the room is ensured, and the resource waste caused by air exchange, heating or cooling can be reduced. In addition, the range hood 2 is provided with an independent range hood panel 22, the operation of the range hood 2 is controlled, and the air pumping and exhausting functions of the range hood 2 can be exerted independently.
The fresh air ventilation system also comprises an operation module 7 for controlling the running state of the fresh air ventilation system; the control module 7 comprises a terminal control unit 71, which is used for receiving and displaying the running state and/or detection information of the fresh air ventilation system, and controlling the running or stopping of the fresh air ventilation system; the terminal control unit 71 comprises a mobile terminal 711, which is used for receiving and displaying the running state and/or detection information of the fresh air ventilation system, and remotely controlling the running or stopping of the fresh air ventilation system; and the control panel 712 is used for receiving and displaying the operation state and/or detection information of the fresh air ventilation system, and controlling the operation or stop of the fresh air ventilation system.
The mobile terminal 711 includes a mobile phone, a watch, a tablet, and the like. The user can directly control the control panel 712 to control the operation of the fresh air ventilation system at home, or can ventilate the room in advance under the condition that the user is not at home, and then get home under the condition that the air in the room meets the requirements.
The central control module 1 receives the instruction sent by the control module 7 and sends the instruction to the fresh air ventilation system, receives the feedback data/information of the fresh air ventilation system, processes the data/information and sends the processed data/information to the control module 7.
As shown in fig. 2 and 3, the control method of the fresh air ventilating system of the present invention includes the steps of,
s1, receiving an exhaust signal;
s2, starting the range hood, and exhausting the air in at least one room to the external environment;
and S3, detecting the pressure in the at least one room, and starting the air inlet device 3 to introduce fresh air into the room when the pressure is reduced to a set value P1.
The puff signal of step S1 is received by the central control module 1, and the received puff signal is sent out by the cigarette machine panel 22 or sent out by the control module 7. If the user subjectively thinks that the indoor air quality is not good, can control module 7 and take place the exhaust signal to range hood 2. Or to operate the front panel 22 of the range hood to send out a ventilation signal when cooking.
Step S2, starting the range hood, and exhausting air in the room, specifically, the central control module 1 receives the exhaust signal sent by the smoke machine panel 22/the operation and control module 7, and then sends the signal to the exhaust device 21, and the exhaust device 21 starts to exhaust air.
If the fresh air ventilation system comprises an air quality detection device, step S1 is executed, step S0 is executed before the exhaust signal is received, the air quality in at least one room is detected, and when the air quality is lower than a set value, a ventilation request signal is sent. Specifically, when the air quality detection device detects that the air quality in a room is lower than a set value, the signal is transmitted to the central control module 1 to request ventilation, the central control module 1 controls the exhaust device 21 to be opened, or the ventilation request signal is transmitted to the control module 7, the control module 7 transmits the exhaust signal to the central control module 1, and the central control module 1 controls the exhaust device 21 to be opened.
The other steps and the work flow of the device are the same as the above steps S1 and S0, and the information exchange and control between the device and the manipulation module 7 are realized by the central control module 1 as an intermediate medium for transferring information.
Alternatively, the exhaust signal received in step S1 is programmed to be sent once at a set time to realize the regular replacement of the air in the room.
The step S3 of starting the air intake device 3 includes a step of opening the electric valve 32 to introduce fresh air into the air intake unit 31.
When the air in the room is discharged to a certain degree, the air inlet device 3 is started to ventilate to replace the ventilation process of exhausting and supplying air in the prior art, so that the air to be replaced in the room can be discharged as much as possible, the ventilation speed is increased, and the ventilation efficiency is improved.
Further, after the air inlet device 3 is started in the step S3, a step S4 is provided to receive a signal for purifying fresh air, and to purify the fresh air to be introduced into the room. There is also a step after the step receives the signal to purify the fresh air and before the step purifies the fresh air, starting the purification unit 51. The air is purified and then is introduced into the room, so that the quality of the air entering the room can be ensured, and the physical and psychological health of a user is facilitated.
Preferably, the ventilation into the room and the purification of the fresh air are performed simultaneously or sequentially, i.e. the opening of the electric valve 32 and the starting of the purification unit 51 are performed simultaneously or sequentially.
Further, in the step S4, after the fresh air is purified, a step S5 is also performed, the temperature of the purified fresh air is detected, the detected temperature is compared with a preset value, and if the temperature of the purified fresh air is lower than a first preset value T1, the purified fresh air is heated; if the temperature of the purified fresh air is higher than a second preset value T2, cooling the purified fresh air; otherwise, directly introducing the purified fresh air into the room; the T1 < T2.
And detecting the temperature of the heated/cooled fresh air, if the temperature of the heated/cooled fresh air meets the requirement, namely the temperature of the heated/cooled fresh air is not lower than a first preset value T1 and not higher than a second preset value T2, discharging the heated/cooled fresh air into a room, otherwise, continuing to heat/cool the purified fresh air until the temperature meets the requirement.
The invention heats or cools the purified air, can keep the temperature in the room within a certain range, and ensures that the air temperature of the newly exchanged air meets the air temperature required by the user.
And when the fresh air is introduced into the room until the pressure in the room is detected to be greater than a set value P2, stopping exhausting, closing the air inlet device 3, and stopping introducing the fresh air into the room, wherein P1 is less than P2.
When the pressure drops to the set value P1 in the step S3, after the air inlet device 3 is activated, there is a step S31 of decreasing the exhaust rate of the exhaust device 21 and/or increasing the air inlet rate of the air inlet device 3 so that the air pressure in the room gradually increases.
Further, when it is detected that the pressure P has dropped to the set value P1, the intake device 3 is activated so that the intake rate and the exhaust rate are the same, maintaining the above-mentioned pressure P for a duration t1, then decreasing the exhaust rate and/or increasing the intake rate, increasing the pressure in the room to Pa, maintaining the above-mentioned pressure Pa for a duration t2, and so on until the pressure in the room increases to P2.
The scheme is maintained for a period of time under a specific pressure value, air in a room can be replaced gradually, the air in the room is exchanged as much as possible, the air exchange speed is accelerated, and the air exchange efficiency is improved.
The air intake rate of the air intake device 3 is controlled by the opening degree of an electric valve 32 arranged on the air intake unit 31, and the opening degree of the electric valve 32 is controlled by the central control module 1 according to the acquired room air pressure parameter information. The smaller the pressure in the room, the larger the difference between the outdoor pressure and the room pressure, and the larger the opening degree of the electric valve 32. Because the pressure in the room is small in the early stage of air intake, the air intake speed is high under the action of the pressure difference between the outside and the room, and therefore the opening degree of the electric valve 32 can ensure the air intake speed without being too large; as the pressure in the room increases, the difference between the outdoor pressure and the room pressure decreases gradually, the intake rate decreases gradually, and the opening of the electric valve 32 needs to be increased to ensure the intake rate.
When the air in the room is considered to be replaced to be close to the set value in the state where the room pressure reaches the set value P2, the exchange of the air between the inside and the outside of the room is stopped. The scheme can ensure the pressure in the room and prevent the normal life of the user from being influenced by overhigh or overlow air pressure in the room.
Further, after the exhaust and the introduction of fresh air into the room are stopped in the above steps, step S6 is also performed, the internal circulation program of the range hood 2 is started, and the range hood 2 performs a purification cycle on the air in the room by using its own purification circulation device 23.
Step S60 is also existed before the step S6, the air quality in at least one room is detected, if the air quality in the room meets the requirement of a set value, the program is ended, if the air quality is in a first preset range, the air quality in the room is considered to be poor, the steps S1 to S5 are circulated, and the air in the room is replaced; if the air quality is within the second predetermined range, it is determined that the air quality in the room is close to the set value, step S6 is performed. The air quality in the first preset range is lower than the air quality in the second preset range.
Alternatively, the step S60 of detecting the quality of the air in the room and the step S6 of starting the internal circulation program may be an independent program, in which the range hood 2 performs the cleaning cycle of the air in the room by using its own cleaning device. I.e., when it is detected that the air quality in the room is within the second preset range, step S6 is performed. Because the air quality at this moment is not very poor, need not to start the procedure of changing wind, only need to air purification can, then can directly utilize the purifier of range hood 2 to carry out purification cycle to the air in the room, until the air quality in the room reaches standard.
Because the range hood 2 is provided with the independent range hood panel 22, a user can manually control the range hood 2 and manually control the purification circulating device 23 to purify air in a room.
According to the control method, when the air in the room is exchanged to a certain degree, under the condition that the air quality in the room is not very poor or the air quality in the room is not very poor, the air in the room is filtered and purified by utilizing the self-purification function of the range hood 2 and then is recycled into the room, the constancy of the air temperature and the humidity in the room can be ensured, and the resource waste caused by air exchange, heating or cooling can be reduced.
The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (10)

1. A fresh air ventilation system is characterized by comprising,
the range hood is at least used for exhausting the air in at least one room;
the air inlet device is used for communicating the interior of at least one room with the external environment and introducing fresh air into the room;
the pressure detection device is used for detecting the air pressure in at least one room and transmitting the air pressure to the central control module;
and the central control module is at least used for controlling the opening and closing of the air inlet device according to the acquired air pressure parameter information.
2. A fresh air ventilating system according to claim 1, wherein said air intake means comprises,
the air inlet unit is communicated with the inside of at least one room and the external environment and is used for introducing fresh air into the room;
and the electric valve is arranged on the air inlet unit and used for controlling the on-off of the air path according to the control information sent by the central control module.
3. A fresh air ventilating system as defined in claim 2, further comprising fresh air processing means for processing fresh air introduced into the room;
the fresh air processing device comprises a purification unit for filtering and purifying fresh air introduced into a room;
preferably, the purification unit is mounted on the intake unit;
preferably, the purification unit is installed inside the air intake unit;
preferably, the fresh air processing device comprises a temperature adjusting unit which is arranged on the air inlet unit and used for heating or cooling fresh air introduced into the room;
preferably, the temperature adjusting unit is installed at the downstream of the purifying unit and used for heating or cooling the purified fresh air;
preferably, the air inlet unit is further provided with a temperature detection device for detecting the temperature of the fresh air introduced into the room.
4. A fresh air ventilating system as defined in any one of claims 1 to 3, wherein said range hood is a dual-purpose range hood integrating an external exhaust type and a circulation type;
preferably, the range hood is provided with a hood panel for controlling the operation of the range hood.
5. A ventilation system according to claim 1, further comprising a control module for operating an operating state of the ventilation system;
the control module comprises a terminal control unit, a control module and a control module, wherein the terminal control unit is used for receiving and displaying the running state and/or detection information of the fresh air ventilation system and controlling the running or stopping of the fresh air ventilation system;
preferably, the terminal control unit comprises a mobile terminal for receiving and displaying the operation state and/or detection information of the fresh air ventilation system, and remotely controlling the operation or stop of the fresh air ventilation system.
6. A method of controlling a fresh air ventilation system as claimed in any one of claims 1 to 5, including the steps of,
receiving an exhaust signal;
starting the range hood, and exhausting air in at least one room to the external environment;
and detecting the pressure in the at least one room, and starting the air inlet device to introduce fresh air into the room when the pressure is judged to be reduced to a set value P1.
7. The method of claim 6, wherein the air inlet device is activated to receive a fresh air purification signal to purify fresh air to be introduced into the room.
8. The control method of a fresh air ventilating system according to claim 7, wherein after the fresh air is purified, the temperature of the purified fresh air is detected and compared with a preset value;
if the temperature of the purified fresh air is lower than a first preset value T1, heating the purified fresh air;
if the temperature of the purified fresh air is higher than a second preset value T2, cooling the purified fresh air;
otherwise, directly introducing the purified fresh air into the room;
the T1 < T2.
9. A method as claimed in any one of claims 6 to 8, wherein when it is detected that the pressure in the room is greater than a predetermined value P2, the ventilation is stopped, the air inlet means is closed, and the introduction of fresh air into the room is stopped.
10. The method for controlling a fresh air ventilation system according to claim 9, wherein after the exhaust and the introduction of fresh air into the room are stopped, an internal circulation program of the range hood is started, and the range hood performs a purification cycle on the air in the room by using its own purification cycle device.
CN202110459684.1A 2021-04-27 2021-04-27 Fresh air ventilation system and control method Pending CN113251518A (en)

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Application Number Priority Date Filing Date Title
CN202110459684.1A CN113251518A (en) 2021-04-27 2021-04-27 Fresh air ventilation system and control method

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Application Number Priority Date Filing Date Title
CN202110459684.1A CN113251518A (en) 2021-04-27 2021-04-27 Fresh air ventilation system and control method

Publications (1)

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114484801A (en) * 2022-01-14 2022-05-13 青岛海尔空调器有限总公司 Air conditioner control method and device, air conditioner, electronic equipment and readable storage medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114484801A (en) * 2022-01-14 2022-05-13 青岛海尔空调器有限总公司 Air conditioner control method and device, air conditioner, electronic equipment and readable storage medium

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