CN115574443B

CN115574443B - Air conditioning equipment, control method and device thereof and storage medium

Info

Publication number: CN115574443B
Application number: CN202211239656.XA
Authority: CN
Inventors: 武如康; 杨爱玲; 王念; 侯强; 向丽娟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2024-07-19
Anticipated expiration: 2042-10-11
Also published as: CN115574443A

Abstract

The invention discloses a control method and a device of air conditioning equipment, the air conditioning equipment and a storage medium, wherein the method comprises the following steps: acquiring an indoor air quality parameter and acquiring a control instruction of a user of the air conditioning equipment; determining a target opening degree of the side ventilation valve as a first opening degree, determining a target opening degree of the air conditioning air valve as a second opening degree and determining target power of the fan according to the air quality parameter; determining a target regulation parameter of the air-conditioning device based on the air quality parameter in combination with the control instruction; and adjusting the opening of the side ventilation valve to the first opening, adjusting the opening of the air conditioning air valve to the second opening, controlling the fan to operate according to the target power, and controlling the air conditioning device to operate according to the target conditioning parameters. According to the scheme, the air quality and the air temperature and humidity of the air purified by the air conditioning equipment are based, the operation parameters of the air conditioning equipment are adjusted, the opening time of the bypass function is prolonged, and the energy-saving operation of the air conditioning equipment is realized.

Description

Air conditioning equipment, control method and device thereof and storage medium

Technical Field

The invention belongs to the technical field of air conditioning equipment, and particularly relates to a control method and device of air conditioning equipment, air conditioning equipment and a storage medium, in particular to air conditioning equipment and an energy-saving control method and device of the air conditioning equipment, the air conditioning equipment and the storage medium.

Background

With the improvement of the living standard of people, air conditioning equipment has become an indispensable living article for home and office. It follows that the energy consumption of the air conditioning equipment occupies more than half of the total energy consumption of the building, and in order to respond to the call of national energy conservation and emission reduction, the research on the energy consumption reduction of the air conditioning equipment is urgent.

In order to reduce the energy consumption, some air conditioning apparatuses have introduced a "bypass" function, i.e. in the case of outside air meeting certain conditions, the outside air is directly fed into the room without any treatment. The bypass function not only saves the energy consumed by fans and other air conditioning devices in the air conditioning equipment, but also reduces the loss of a filtering device in the air conditioning equipment, thereby being a powerful energy-saving means. However, most of the bypass functions in the related schemes stay in the primary stage, the control method is mainly to directly detect the outdoor air parameters, and when the outdoor air parameters accord with the set values, the bypass functions are directly opened to send the outdoor air into the room, so that at least the problems of short entering time of the bypass functions and weak energy-saving effect exist.

The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.

Disclosure of Invention

The invention aims to provide a control method, a control device, an air conditioning device and a storage medium of the air conditioning device, so as to solve the problems that the bypass function of the air conditioning device is mostly directly detected, the bypass function is directly opened to send outdoor air into a room when the outdoor air parameter accords with a set value, and at least the bypass function has short entering time and weak energy-saving effect.

The invention provides a control method of air conditioning equipment, which comprises the following steps of providing a fan, a bypass air valve, an air conditioning air valve and an air conditioning device; outside air is sucked by the fan and is divided into two paths: one path enters the indoor side after passing through the bypass air valve, and the other path enters the indoor side after passing through the air conditioning air valve and the air conditioning device; the control method of the air conditioning device comprises the following steps: acquiring an air quality parameter of the indoor side and a control instruction of a user of the air conditioning equipment; determining a target opening degree of the bypass air valve to be a first opening degree, determining a target opening degree of the air conditioning air valve to be a second opening degree and determining target power of the fan according to the air quality parameter; determining a target regulation parameter of the air conditioning device based on the air quality parameter in combination with the control instruction; and adjusting the opening of the bypass air valve to the first opening, adjusting the opening of the air-conditioning air valve to the second opening, controlling the fan to operate according to the target power, and controlling the air-conditioning device to operate according to the target conditioning parameter.

In some embodiments, the air quality parameter comprises: the carbon dioxide concentration of the side ventilation, the carbon dioxide concentration of the air-conditioning wind, the carbon dioxide concentration of the mixed wind of the side ventilation and the air-conditioning wind, the PM2.5 concentration of the side ventilation, the PM2.5 concentration of the air-conditioning wind, and the PM2.5 concentration of the mixed wind of the side ventilation and the air-conditioning wind, the rated carbon dioxide concentration, the rated PM2.5 concentration, and the required air volume set by a user; determining, according to the air quality parameter, that the target opening degree of the bypass damper is denoted as a first opening degree, that the target opening degree of the air-conditioning damper is denoted as a second opening degree, and that the target power of the fan includes: according to the carbon dioxide concentration of the mixed wind, a first relation between the carbon dioxide concentration of the bypass wind, the carbon dioxide concentration of the air-conditioning wind, the bypass wind inlet air quantity and the air-conditioning wind inlet air quantity and the rated carbon dioxide concentration; a second relationship between the PM2.5 concentration of the mixed wind, the PM2.5 concentration of the bypass wind, the PM2.5 concentration of the air-conditioning wind, the bypass wind intake amount and the air-conditioning wind intake amount, and the rated PM2.5 concentration, according to the PM2.5 concentration of the mixed wind; determining the bypass air intake and the air conditioning air intake according to a third relation among the required air volume, the bypass air intake and the air conditioning air intake; determining the target power of the fan according to the required air quantity; and determining a target opening degree of the bypass air valve as a first opening degree and determining a target opening degree of the air conditioning air valve as a second opening degree according to the required air volume, the bypass air inlet volume and the air conditioning air inlet volume.

In some embodiments, determining the target power of the fan according to the required air volume includes: determining wind pressure of the fan, mechanical transmission efficiency of the fan and fan efficiency of the fan; and determining the ratio of the product of the required air quantity and the air pressure to the product of the mechanical transmission efficiency and the fan efficiency as the target power of the fan.

In some embodiments, determining the target opening of the bypass damper as the first opening and determining the target opening of the air-conditioning damper as the second opening based on the required air volume and the bypass air intake volume and the air-conditioning air intake volume includes: determining an opening angle of the bypass air valve according to the ratio of the inlet air quantity of the bypass air to the required air quantity, and recording the opening angle as a first opening degree of the target opening degree of the bypass air valve; and determining the opening angle of the air-conditioning air valve according to the ratio of the air inlet volume of the air-conditioning air to the required air volume, and recording the opening angle as a second opening degree of the target opening degree of the air-conditioning air valve.

In some embodiments, the air conditioning device comprises: a heat exchanger device; the air quality parameter further comprises: side ventilation temperature and air-conditioning wind temperature, target temperature set by user; the control instruction includes: a temperature adjustment command; based on the air quality parameter, in combination with the control instruction, determining a target conditioning parameter of the air conditioning device, comprising: determining the air-conditioning wind temperature according to a fourth relationship among the bypass wind temperature, the bypass wind intake amount, the air-conditioning wind temperature, and the target temperature when the temperature adjustment instruction is received; and determining the operation parameter of the heat exchanger device according to the air conditioning wind temperature as the target conditioning parameter of the heat exchanger device in the air conditioning device.

In accordance with the above method, another aspect of the present invention provides a control device for an air conditioning apparatus having a blower, a bypass damper, an air conditioning damper, and an air conditioning device; outside air is sucked by the fan and is divided into two paths: one path enters the indoor side after passing through the bypass air valve, and the other path enters the indoor side after passing through the air conditioning air valve and the air conditioning device; the control device of the air conditioning equipment comprises: an acquisition unit configured to acquire an air quality parameter of the indoor side and to acquire a control instruction of a user of the air conditioning apparatus; a determining unit configured to determine, based on the air quality parameter, a target opening degree of the bypass damper as a first opening degree, a target opening degree of the air-conditioning damper as a second opening degree, and a target power of the blower; the determining unit is further configured to determine a target adjustment parameter of the air conditioning device based on the air quality parameter in combination with the control instruction; and the control unit is configured to adjust the opening of the bypass air valve to the first opening, adjust the opening of the air-conditioning air valve to the second opening, control the fan to operate according to the target power and control the air-conditioning device to operate according to the target conditioning parameter.

In some embodiments, the air quality parameter comprises: the carbon dioxide concentration of the side ventilation, the carbon dioxide concentration of the air-conditioning wind, the carbon dioxide concentration of the mixed wind of the side ventilation and the air-conditioning wind, the PM2.5 concentration of the side ventilation, the PM2.5 concentration of the air-conditioning wind, and the PM2.5 concentration of the mixed wind of the side ventilation and the air-conditioning wind, the rated carbon dioxide concentration, the rated PM2.5 concentration, and the required air volume set by a user; the determining unit determines, according to the air quality parameter, that a target opening degree of the bypass damper is denoted as a first opening degree, that a target opening degree of the air-conditioning damper is denoted as a second opening degree, and that a target power of the fan includes: according to the carbon dioxide concentration of the mixed wind, a first relation between the carbon dioxide concentration of the bypass wind, the carbon dioxide concentration of the air-conditioning wind, the bypass wind inlet air quantity and the air-conditioning wind inlet air quantity and the rated carbon dioxide concentration; a second relationship between the PM2.5 concentration of the mixed wind, the PM2.5 concentration of the bypass wind, the PM2.5 concentration of the air-conditioning wind, the bypass wind intake amount and the air-conditioning wind intake amount, and the rated PM2.5 concentration, according to the PM2.5 concentration of the mixed wind; determining the bypass air intake and the air conditioning air intake according to a third relation among the required air volume, the bypass air intake and the air conditioning air intake; determining the target power of the fan according to the required air quantity; and determining a target opening degree of the bypass air valve as a first opening degree and determining a target opening degree of the air conditioning air valve as a second opening degree according to the required air volume, the bypass air inlet volume and the air conditioning air inlet volume.

In some embodiments, the determining unit determines, according to the required air volume, a target power of the fan, including: determining wind pressure of the fan, mechanical transmission efficiency of the fan and fan efficiency of the fan; and determining the ratio of the product of the required air quantity and the air pressure to the product of the mechanical transmission efficiency and the fan efficiency as the target power of the fan.

In some embodiments, the determining unit determines, based on the required air volume, the bypass air intake volume, and the air-conditioning air intake volume, a target opening degree of the bypass air valve to be a first opening degree, and determines the target opening degree of the air-conditioning air valve to be a second opening degree, including: determining an opening angle of the bypass air valve according to the ratio of the inlet air quantity of the bypass air to the required air quantity, and recording the opening angle as a first opening degree of the target opening degree of the bypass air valve; and determining the opening angle of the air-conditioning air valve according to the ratio of the air inlet volume of the air-conditioning air to the required air volume, and recording the opening angle as a second opening degree of the target opening degree of the air-conditioning air valve.

In some embodiments, the air conditioning device comprises: a heat exchanger device; the air quality parameter further comprises: side ventilation temperature and air-conditioning wind temperature, target temperature set by user; the control instruction includes: a temperature adjustment command; the determining unit, based on the air quality parameter, in combination with the control instruction, determines a target adjustment parameter of the air conditioning device, including: determining the air-conditioning wind temperature according to a fourth relationship among the bypass wind temperature, the bypass wind intake amount, the air-conditioning wind temperature, and the target temperature when the temperature adjustment instruction is received; and determining the operation parameter of the heat exchanger device according to the air conditioning wind temperature as the target conditioning parameter of the heat exchanger device in the air conditioning device.

In accordance with the above-described apparatus, a further aspect of the present invention provides an air conditioning apparatus comprising: the control device of the air conditioning apparatus described above.

In accordance with the above method, a further aspect of the present invention provides a storage medium including a stored program, wherein the program, when executed, controls an apparatus in which the storage medium is located to perform the above-described control method of an air conditioning apparatus.

Therefore, according to the scheme of the invention, the air quality (such as carbon dioxide concentration, PM2.5 concentration and the like) of the air purified by the air conditioning equipment is obtained, and the bypass air intake quantity and the air conditioning air intake quantity are determined according to the air quality of the purified air; according to the bypass wind intake quantity and the air conditioning wind intake quantity, the fan power, the bypass ventilation valve opening and the air conditioning valve opening are determined, and under the condition that a user needs to adjust the temperature and the humidity, the operating parameters of the temperature adjusting device and the humidity adjusting device are determined by combining the temperature and humidity value of the purified air, so that energy saving is realized under the condition that the comfort requirement of the user is met, and accordingly, the operating parameters of the air conditioning equipment, such as the fan power, the bypass valve opening, the air conditioning valve opening and the operating states of the heat exchanger and components of the air conditioning equipment, are adjusted on the basis of the air quality and the air temperature and the humidity of the purified air of the air conditioning equipment, so that the opening time of the bypass function of the air conditioning equipment is prolonged on the premise that the use comfort of the user is ensured, and the energy saving operation of the air conditioning equipment is realized.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a flow chart of an embodiment of a control method of an air conditioning apparatus of the present invention;

FIG. 2 is a schematic flow chart of an embodiment of determining a first opening of a side vent valve and a second opening of an air handling damper in the method of the present invention;

FIG. 3 is a flow chart of an embodiment of determining a target power of a fan according to a required air volume in the method of the present invention;

FIG. 4 is a flow chart of an embodiment of determining a first opening of a bypass damper and a second opening of an air-handling damper according to a desired air volume, a bypass air intake volume, and an air-handling air intake volume in the method of the present invention;

FIG. 5 is a flow chart of an embodiment of the method of the present invention for determining a target conditioning parameter of an air conditioning unit based on an air quality parameter;

fig. 6 is a schematic structural view of an embodiment of a control device of an air conditioning apparatus of the present invention;

FIG. 7 is a schematic structural view of an embodiment of an air conditioning apparatus;

FIG. 8 is a schematic view of a construction of an embodiment of a heat exchanger apparatus in an air conditioning plant;

fig. 9 is a flow chart of an embodiment of an energy saving control method of an air conditioning apparatus.

In the embodiment of the present invention, reference numerals are as follows, in combination with the accompanying drawings:

1-a refrigerant pipe; 2-an evaporator; 3-an air parameter sensor; 102-an acquisition unit; 104-a determining unit; 106-a control unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In consideration of some schemes, the bypass switch is directly controlled through indoor and outdoor temperature difference, the bypass function is directly opened when the temperature difference accords with a preset value, but the time for entering energy conservation is short, the air quality problem is not considered, the energy conservation effect is weak, and the user experience is poor. In other schemes, the judgment of the content of CO ₂ is added on the basis of the scheme, when the temperature difference and the content of CO ₂ meet preset values, the bypass function is opened, but the time for entering energy conservation is still less, and the energy conservation effect is still weaker. In addition, some schemes are provided, and on the basis of judging whether the temperature difference and the content of CO ₂ accord with preset values, the air supply fan is integrated into one, so that the power consumption of the air conditioning equipment is further reduced, and the problems of less bypass entering time and weak energy saving effect are not solved.

As can be seen, the control method of the "bypass" function of the air conditioning apparatus in the related solution is still required to be perfected, for example: the bypass time is short, the energy-saving effect is not obvious, and the air quality after the bypass function is started possibly does not reach the standard. In addition, the bypass time is short, and in many cases, air still needs to pass through the filter device when entering the room, so that the service life of the filter device is prolonged.

In addition, considering the basic functions of the air conditioning device for adjusting the air quality and the air temperature and humidity, the scheme of the invention provides a control method of the air conditioning device, in particular an energy-saving control method of the air conditioning device, which can be regarded as a fixed value and the air temperature and humidity as controllable values based on the air quality purified by the air conditioning device, and performs energy-saving control on the air conditioning device so as to prolong the opening time of the bypass function as far as possible under the condition that the quality, the temperature and humidity of the output air and the like meet the requirements of users, thereby realizing energy-saving operation of the air conditioning device.

The basic functions of the air conditioning device for air quality and air temperature and humidity are described in the following by way of example.

Air conditioning equipment conditions the air quality by filtering, ionizing, heating, etc., the portion of the outdoor air that enters the room is treated, most of which are not controllable. Such as: if a filter medium is used to filter the CO ₂ concentration in air to below 800PPM (i.e., parts per million), then 1000PPM and 1500PPM of air pass through the medium, and the concentration of CO ₂ after exiting is almost within a certain interval below 800, so the air quality after treatment of the air conditioning equipment is considered to be a fixed value, i.e., is not adjustable.

The air conditioning equipment adjusts the temperature and humidity of air, and is processed by a heat exchange device, a humidifying device or a dehumidifying device. The heat exchange is that the air to be treated exchanges heat with the refrigerant, and the temperature of the refrigerant can be regarded as being controlled by the air conditioning equipment and controllable, so that the temperature and the humidity of the air treated by the air conditioning equipment are regarded as controllable values.

According to an embodiment of the present invention, there is provided a control method of an air conditioning apparatus, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The air conditioning apparatus has a blower, a bypass damper, an air conditioning damper, and an air conditioning device. Outside air is sucked by the fan and is divided into two paths: one path enters the indoor side after passing through the bypass air valve, and the other path enters the indoor side after passing through the air conditioning air valve and the air conditioning device. Specifically, the air outside the air conditioning equipment is sucked into the air conditioning equipment through the fan and then is divided into two paths: one path enters the indoor side of the air conditioning equipment after passing through the bypass air valve, and the other path enters the indoor side of the air conditioning equipment after passing through the air conditioning air valve and the air conditioning device.

For example: in order to better describe the implementation of the solution of the invention, an example operation of a simplified air conditioning device is presented below. Fig. 7 is a schematic structural view of an embodiment of an air conditioning apparatus. As shown in fig. 7, the outdoor air of the total air intake passage is sucked into the interior of the air conditioning apparatus by the blower fan to obtain total intake air. The total air intake is divided into two paths: one way is a side ventilation channel which is used as side ventilation and directly enters the room through a side ventilation valve. The other path is in the air conditioning channel and is used as air conditioning wind to be conditioned, and the air conditioning wind passes through the air conditioning air valve and the air conditioning device in sequence and becomes treated air conditioning wind to enter the room.

The control method of the air conditioning device comprises the following steps: step S110 to step S140.

At step S110, an air quality parameter of the indoor side is acquired, and a control instruction of a user of the air conditioning apparatus is acquired. Such as carbon dioxide concentration, PM2.5 concentration, etc. Such as temperature control instructions, humidity control instructions, etc.

At step S120, according to the air quality parameter, determining that the target opening degree of the bypass damper is denoted as a first opening degree, determining that the target opening degree of the air-conditioning damper is denoted as a second opening degree, and determining the target power of the fan.

In step S120, according to the air quality parameter, a target opening degree of the bypass damper is determined to be a first opening degree, a target opening degree of the air-conditioning damper is determined to be a second opening degree, and a target power of the fan is determined, see the following exemplary description.

The following is a schematic flowchart of an embodiment of determining the first opening of the bypass damper and the second opening of the air-conditioning damper in the method of the present invention in connection with fig. 2, and further describes a specific process of determining the first opening of the bypass damper and the second opening of the air-conditioning damper in step S120, where the specific process includes: step S210 to step S230.

Step S210, according to the carbon dioxide concentration of the mixed wind, a first relation between the carbon dioxide concentration of the bypass wind, the carbon dioxide concentration of the air-conditioning wind, the bypass wind inlet air quantity and the air-conditioning wind inlet air quantity and the rated carbon dioxide concentration; a second relationship between the PM2.5 concentration of the mixed wind, the PM2.5 concentration of the bypass wind, the PM2.5 concentration of the air-conditioning wind, the bypass wind intake amount and the air-conditioning wind intake amount, and the rated PM2.5 concentration, according to the PM2.5 concentration of the mixed wind; and determining the bypass air intake and the air conditioning air intake according to a third relationship among the required air volume, the bypass air intake and the air conditioning air intake.

Step S220, determining the target power of the fan according to the required air quantity.

And step S230, determining a target opening degree of the bypass air valve as a first opening degree and determining a target opening degree of the air conditioning air valve as a second opening degree according to the required air volume, the bypass air inlet volume and the air conditioning air inlet volume.

The implementation process of the energy-saving control method of the air conditioning device is first described in an exemplary manner.

The scheme of the invention designs an energy-saving control method of air conditioning equipment, which is shown in the following formula:

V_{Feeding in}＝V_{Is required to}＝V_{bypass circuit}+V_{Regulation of} (1-1)。

Wherein V _{Feeding in} is the actual air intake of the air conditioning apparatus, and is denoted as the actual air intake (i.e., total air intake). V _{Is required to} is the air volume required by the user and is recorded as the required air volume. V _{bypass circuit} is the air volume entering from the bypass air valve, and is recorded as the bypass air intake volume. V _{Regulation of} is the air volume entering from the air-conditioning damper, and is denoted as the air-conditioning air intake volume. The bypass air is air which directly enters the room from the bypass air valve without being processed after the bypass function is started. The air-conditioning air is air which enters the room after being filtered by the air-conditioning equipment, subjected to heat exchange and the like.

The CO _{2 Out of} is the CO ₂ concentration of the mixed air after mixing the side air and the air-conditioning air (considered as the side air and the air-conditioning air are uniformly mixed), and is denoted as the mixed air CO ₂ concentration. CO _{2 bypass circuit} is the side draft CO ₂ concentration, noted as the side draft CO ₂ concentration. CO _{2 Regulation of} is the CO ₂ concentration of the air-conditioned air, and is denoted as the air-conditioned air CO ₂ concentration. CO _{2 Forehead (forehead)} is a default or user set limit for CO ₂ concentration, noted as rated CO ₂ concentration. The concentration of CO ₂ in the air outlet of the mixed air, the side ventilation air, the air conditioning air and the like is smaller than or equal to the rated concentration of CO ₂.

PM2.5 _{Out of} is the PM2.5 concentration of the mixed wind after the side ventilation and air conditioning wind are mixed (considered as the side ventilation and air conditioning wind are uniformly mixed), and is denoted as the mixed wind PM2.5 concentration. PM2.5 _{bypass circuit} is the PM2.5 concentration of the bypass wind, and is denoted as the bypass wind PM2.5 concentration. PM2.5 _{Regulation of} is the PM2.5 concentration of the air-conditioned air, and is denoted as the PM2.5 concentration of the air-conditioned air. User M2.5 _{Forehead (forehead)} is a default or user set limit value for PM2.5 concentration, noted as nominal PM2.5 concentration. PM2.5 concentration of each air outlet of mixed air, side ventilation, air conditioning air and the like is required to be less than or equal to rated PM2.5 concentration.

As shown in the formulas 1-1 and 1-2, the required air volume V _{Is required to}, the bypass air CO ₂ concentration CO _{2 bypass circuit}, the bypass air PM2.5 concentration PM2.5 _{bypass circuit} are externally input known amounts, the rated CO ₂ concentration CO _{2 Forehead (forehead)}, the rated PM2.5 concentration PM2.5 _{Forehead (forehead)} are externally preset known amounts, the air-conditioning air CO ₂ concentration CO _{2 Regulation of}, and the air-conditioning air PM2.5 concentration PM2.5 _{Regulation of} are internally preset known amounts. Therefore, the values of the bypass air intake V _{bypass circuit} and the air-conditioning air intake V _{Regulation of} are easily obtained. Further, the fan power is determined by the required air volume V _{Is required to}, and the bypass air intake volume V _{bypass circuit} and the air conditioning air intake volume V _{Regulation of} determine the opening angles of the bypass air valve and the air conditioning air valve.

In some embodiments, the specific process of determining the target power of the fan in step S220 according to the required air volume is described in the following exemplary description.

The following is a schematic flow chart of an embodiment of determining the target power of the fan according to the required air volume in the method of the present invention shown in fig. 3, further describing a specific process of determining the target power of the fan according to the required air volume in step S220, including: step S310 and step S320.

Step S310, determining wind pressure of the fan, mechanical transmission efficiency of the fan, and fan efficiency of the fan.

Step S320, determining the ratio of the product of the required air volume and the air pressure to the product of the mechanical transmission efficiency and the fan efficiency as the target power of the fan.

Specifically, fan power P is calculated according to required air volume V _{Is required to}:

The required air volume V _{Is required to} can be calculated according to the formula 1-2. η ₁ is the mechanical transmission efficiency, which is a constant value, and is generally 0.95 or 0.98.η ₂ is fan efficiency, which is a constant value, generally 0.719-0.8. And p is wind pressure, and is a fixed value, and the output characteristics of the air conditioning equipment are required to be determined.

The air conditioning equipment controls the operation of the fan according to the calculated fan power P, and further controls the total air intake of the air conditioning equipment, so that the total air intake of the air conditioning equipment meets the required air volume V _{Is required to}. For example: according to the power P of the fan, the rotating speed of the fan is controlled, the air inlet quantity of the fan is controlled, and the air inlet quantity is increased as the rotating speed is increased.

In some embodiments, in step S230, the target opening degree of the bypass damper is determined to be a first opening degree, and the target opening degree of the air-conditioning damper is determined to be a second opening degree according to the required air volume, the bypass air intake volume, and the air-conditioning air intake volume, which is described in the following exemplary description.

The following is a schematic flow chart of an embodiment of determining the first opening of the side ventilation valve and the second opening of the air conditioning valve according to the required air volume, the bypass air intake volume and the air conditioning air intake volume in the method of the present invention shown in fig. 4, which further describes a specific process of determining the first opening of the side ventilation valve and the second opening of the air conditioning valve according to the required air volume, the bypass air intake volume and the air conditioning air intake volume in step S230, and includes: step S410 and step S420.

Step S410, determining an opening angle of the bypass damper according to a ratio of the bypass damper air inlet volume to the required air volume, and recording a target opening of the bypass damper as a first opening.

Step S420, determining an opening angle of the air-conditioning air valve according to a ratio of the air-conditioning air intake volume to the required air volume, and recording a target opening degree of the air-conditioning air valve as a second opening degree.

Specifically, the opening angle of each damper is calculated according to the values of the bypass air intake V _{bypass circuit} and the air-conditioning air intake V _{Regulation of}:

Wherein, the bypass wind inlet volume V _{bypass circuit} and the air-conditioning wind inlet volume V _{Regulation of} can be calculated by the formulas 1-2. Alpha _{bypass circuit} is the bypass damper opening angle, and beta _{Regulation of} is the air conditioning damper opening angle. By controlling the opening values of the side ventilation valve and the air conditioning air valve, the proportion of the total air intake of the air conditioning equipment to the side ventilation and the air conditioning air is further controlled.

At step S130, a target conditioning parameter of the air conditioning device is determined in conjunction with the control instruction based on the air quality parameter.

In some embodiments, the air conditioning device comprises: a heat exchanger device. The air quality parameter further comprises: side ventilation temperature and air conditioning wind temperature, and target temperature set by a user. The control instruction includes: a temperature adjustment command.

As shown in fig. 7, the air conditioning apparatus includes: air quality adjusting device, humidity adjusting device (such as humidifying device or dehumidifying device), heat exchanger device, etc. The fan, the bypass air valve, the air-conditioning air valve, the air quality adjusting device, the humidity adjusting device (such as a humidifying device or a dehumidifying device) and the heat exchanger device are controllable air-conditioning devices. The fan may control the total air intake by rotational speed, for example: the air conditioning equipment controls the operation of the fan according to the calculated fan power P, and further controls the total air intake of the air conditioning equipment, so that the total air intake of the air conditioning equipment meets the required air volume V _{Is required to}. The side ventilation valve and the air conditioning air valve can control the air quantity passing through the side ventilation valve and the air conditioning air valve by adjusting the opening degree of the side ventilation valve and the air conditioning air valve, for example: the opening values of the side ventilation valve and the air conditioning air valve are controlled through the opening angle alpha _{bypass circuit} of the side ventilation valve and the opening angle beta _{Regulation of} of the air conditioning air valve, so that the proportion of the total air quantity of the air conditioning equipment to the side ventilation and the air conditioning air is controlled. The air quality adjusting device is internally provided with a filtering device for adsorbing PM2.5 and CO ₂.

Fig. 8 is a schematic structural view of an embodiment of a heat exchanger device in an air conditioning apparatus. As shown in fig. 8, the heat exchanger device is composed of a refrigerant pipe 1 and an evaporator 2, and the refrigerant pipe 1 is disposed in the evaporator 2.

In step S130, a specific procedure of determining a target adjustment parameter of the air-conditioning apparatus based on the air quality parameter in combination with the control instruction is described in the following exemplary description.

The following is a flowchart of an embodiment of determining the target adjustment parameter of the air-conditioning apparatus according to the air quality parameter in the method of the present invention shown in fig. 5, further describing the specific process of determining the target adjustment parameter of the air-conditioning apparatus according to the air quality parameter in step S130, including: step S510 and step S520.

Step S510, when the temperature adjustment command is received, of determining the air-conditioning wind temperature according to a fourth relationship among the bypass wind temperature, the bypass wind intake amount, the air-conditioning wind temperature, and the target temperature.

And step S520, determining the operation parameters of the heat exchanger device according to the air-conditioning wind temperature as target adjustment parameters of the heat exchanger device in the air-conditioning device.

Specifically, after the user turns on the temperature adjustment function, it is also necessary to control the temperature of the air-conditioning wind:

Wherein T _{bypass circuit} is the actual temperature value of the side ventilation, which is recorded as the side ventilation temperature. T _{Regulation of} is a target temperature value of the air-conditioning wind, and is recorded as an air-conditioning wind temperature. T _{Is provided with} is a target temperature set by a user, and the target temperature is recorded.

In the formula, the bypass air temperature T _{bypass circuit} and the target temperature T _{Is provided with} are known amounts externally input, and the bypass air intake volume V _{bypass circuit} and the air-conditioning air intake volume V _{Regulation of} are values obtained by the formulas 1 to 2, so that the air-conditioning air temperature T _{Regulation of} can be easily obtained. The operating power of the heat exchanger and related components in the air conditioning equipment is controlled by the temperature T _{Regulation of} of the air conditioning air, so that the temperature value of the air conditioning air after passing through the heat exchanger accords with the temperature T _{Regulation of} of the air conditioning air.

That is, the air-conditioning air temperature T _{Regulation of} and the bypass air temperature T _{bypass circuit} (as outdoor air temperature values) are known, that is, the actual input air temperature and the target output air temperature of the air-conditioning apparatus are known, and thus the operation power of the heat exchanger inside the air-conditioning apparatus and its related components is controlled by the temperature difference.

The operation power of the heat exchanger and related components in the air conditioning equipment is controlled by the air conditioning air temperature T _{Regulation of}, and specifically, the operation power of the compressor is controlled.

Each air-conditioning air temperature T _{Regulation of} corresponds to a compressor operation power value in cooperation with the current bypass air temperature T _{bypass circuit}, and the corresponding relation is preset and is obtained according to the compressor type and the unit type and by performing a plurality of groups of experimental data.

For example: by the air-conditioning wind temperature T _{Regulation of} (as a target temperature value) and the bypass wind temperature T _{bypass circuit} (as a temperature value of air to be conditioned), it is possible to determine how much energy per unit volume of air needs to be increased or decreased to change from the bypass wind temperature T _{bypass circuit} (as a temperature value of air to be conditioned) to the air-conditioning wind temperature T _{Regulation of} (as a target temperature value); according to the efficiency of the heat exchanger, calculating how much energy the heat exchanger should output or input when the unit volume of air just passes from entering; and then calculating the operating power of the heat exchanger according to the energy value, and further controlling the operating power of the compressor.

In addition, humidity adjustment is generally performed by a humidifying device or a dehumidifying device. For example: when humidifying, a water storage device can be connected, and water is sprayed into air through a water pumping device (such as a water pump and a spray head) to increase humidity. Dehumidification, electrical dehumidification, filtration membrane dehumidification and the like are adopted, namely, water molecules in the air are filtered to be part of the water molecules, and the humidity is reduced.

In summary, in the scheme of the invention, based on the fact that the air quality purified by the air conditioning equipment can be regarded as a fixed value and the air temperature and humidity can be regarded as a controllable value, 5 formulas (namely formulas 1-1, 1-2, 2-1, 2-2 and 2-3) are constructed, the working states of the fan, the air valve, the heat exchanger and components thereof are calculated by taking the air quality and the temperature and humidity as standard as first borrowing, and the loads are operated according to the calculation results. Thus, the proposal of the invention determines the values of the air-conditioning air inlet volume V _{Regulation of} and the bypass air inlet volume V _{bypass circuit} through the formulas 1-1 and 1-2, and based on the values of the air-conditioning air inlet volume V _{Regulation of} and the bypass air inlet volume V _{bypass circuit}, The theoretical values of the fan power P, the bypass air valve opening angle alpha _{bypass circuit}, the air conditioning air valve opening angle beta _{Regulation of} and the output parameters of the heat exchanger and the components thereof (such as the running power of the heat exchanger and the related components in the air conditioning equipment) are obtained through formulas 2-1, 2-2 and 2-3, and then the theoretical values of the fan power P, the bypass air valve opening angle alpha _{bypass circuit}, the bypass air valve opening angle alpha _{Regulation of} and the output parameters of the heat exchanger and the components thereof (such as the running power of the heat exchanger and the related components in the air conditioning equipment) are obtained, The air-conditioning air valve opening angle beta _{Regulation of} and the theoretical value of the output parameters of the heat exchanger and the components thereof (such as the operation power of the heat exchanger and the related components thereof in the air-conditioning equipment) control the working states of the fan, the bypass air valve, the air-conditioning air valve, the heat exchanger and the components thereof of the air-conditioning equipment, so that the actual values of the output of the fan, the bypass air valve, the air-conditioning air valve, the heat exchanger and the components thereof of the air-conditioning equipment reach the fan power P, the bypass air valve opening angle alpha _{bypass circuit}, the air conditioning damper opening angle β _{Regulation of}, and the theoretical value of the output parameters of the heat exchanger and its components (e.g., the operating power of the heat exchanger and its associated components within the air conditioning apparatus). Therefore, on the premise that the output air meets the user requirement, the long-time operation of the bypass function is realized, and the power consumption of the air conditioning equipment is reduced. In addition, for the air conditioning apparatus including the filter device, the filter device in the air conditioning apparatus is also protected from excessive loss of the air conditioning apparatus.

At step S140, the opening degree of the bypass damper is adjusted to the first opening degree, the opening degree of the air-conditioning damper is adjusted to the second opening degree, the fan is controlled to operate according to the target power, and the air-conditioning device is controlled to operate according to the target conditioning parameter, so as to realize energy-saving control of the air-conditioning equipment.

The invention designs an energy-saving control method of air conditioning equipment, in particular to a control method of taking a bypass function of the air conditioning equipment as an auxiliary air inlet mode, which is based on the fact that the air quality purified by the air conditioning equipment can be regarded as a fixed value, the air temperature and the air humidity can be regarded as controllable values, the operation of the air conditioning equipment is intelligently controlled, the opening time of the bypass function is prolonged as much as possible under the condition that the quality, the temperature and the humidity of output air and the like are ensured to meet the requirements of users, so that the energy-saving operation of the air conditioning equipment is realized, the problem that the energy-saving effect is weak due to the short entering time of the bypass function of the air conditioning equipment is solved, and the problem that the indoor air quality possibly does not reach standards due to the opening of the bypass function is also solved. Meanwhile, the use of the filtering device in the air conditioning equipment is reduced, the service life of the filtering device in the air conditioning equipment is prolonged, and the problems that the bypass function of the air conditioning equipment is short in access time, most of air exchange can pass through the filtering device, and the service life loss is high are solved.

Specifically, fig. 9 is a schematic flow chart of an embodiment of an energy saving control method of an air conditioning apparatus. As shown in fig. 9, the energy saving control method of the air conditioning apparatus includes:

after the air conditioning equipment is started, indoor and outdoor air parameters, such as required air volume V _{Is required to}, bypass air CO ₂ concentration CO _{2 bypass circuit} and bypass air PM2.5 concentration PM2.5 _{bypass circuit}, are monitored through sensors (such as an air parameter sensor 3). User instructions are acquired through a remote controller or other control equipment, such as determining an externally preset known quantity and an internally preset known quantity, wherein rated CO ₂ concentration CO _{2 Forehead (forehead)} and rated PM2.5 concentration PM2.5 _{Forehead (forehead)} are the externally preset known quantity, and air-conditioning wind CO ₂ concentration CO _{2 Regulation of} and air-conditioning wind PM2.5 concentration PM2.5 _{Regulation of} are the internally preset known quantity.

Step 2, calculating the working power (such as fan power P) of the fan according to formulas 1-1, 1-2 and 2-1 in the control method, bypassing the air valve and opening angle values (such as a bypass air valve opening angle alpha _{bypass circuit} and an air-conditioning air valve opening angle beta _{Regulation of}) of the air-conditioning air valve according to the formula 2-2 in the control method, controlling the fan to work according to the calculated fan power P, and opening the air valve according to the calculated angle values (such as a bypass air valve opening angle alpha _{bypass circuit} and an air-conditioning air valve opening angle beta _{Regulation of}).

And 3, after the fan and the air valve (such as the side ventilation valve and the air conditioning air valve) are started, outdoor air is blown into the air conditioning equipment by the fan, and the outdoor air is divided into two parts of side ventilation and air conditioning air through the side ventilation valve and the air conditioning air valve.

And 4, purifying and adjusting the humidity by the air conditioning wind after passing through an air quality adjusting device and a humidity adjusting device (such as a humidifying device or a dehumidifying device).

And 5, judging whether the user needs to adjust the temperature, if so, calculating a target temperature value of the air-conditioning wind through 2-3 in the formula, and controlling the heat exchanger and related components to adjust the temperature of the refrigerant to a corresponding temperature value, so that the temperature value of the air-conditioning wind after heat exchange with the refrigerant is the target temperature value. If not, the above-mentioned stage is skipped.

And 6, mixing the air-conditioning air and the bypass air, and blowing into the room to complete a one-time working flow.

In the scheme of the invention, the air quality based on the air-conditioning wind can be regarded as a fixed value, and the air temperature and humidity of the air-conditioning wind can be regarded as a controllable value, wherein the two points are preset or calculated by an internal program of the air-conditioning equipment and are not monitored by a sensor. And then inputting the temperature and humidity, the concentration of CO ₂ and the like monitored by the sensor, and opening of an air valve, the rotating speed of a fan and the like in the air conditioning equipment. In this way, the proposal of the invention increases the opening time of the bypass function and the air intake quantity of the bypass air by optimizing the bypass function of the air conditioning equipment as the control method of auxiliary air intake, thereby at least solving the problems of short opening time of the bypass function and poor energy-saving effect.

It was verified that with the scheme of the present invention, the power consumption of the air conditioning apparatus can be reduced by 15% as compared with the control method in the related scheme, and the filtration amount of the filtration device in the air conditioning apparatus can be reduced, so that the life of the filtration device in the air conditioning apparatus can be increased by 20%.

In some embodiments, the air quality parameter comprises: the carbon dioxide concentration of the side ventilation, the carbon dioxide concentration of the air-conditioning wind, the carbon dioxide concentration of the mixed wind of the side ventilation and the air-conditioning wind, the PM2.5 concentration of the side ventilation, the PM2.5 concentration of the air-conditioning wind, and the PM2.5 concentration of the mixed wind of the side ventilation and the air-conditioning wind, the rated carbon dioxide concentration, the rated PM2.5 concentration, and the required air volume set by a user. As shown in fig. 7, various types of air parameter sensors 3 are provided on the outdoor side (i.e., the outside of the blower) of the total air intake passage, and on the indoor side (i.e., the output side of the air-conditioning air) of the air-conditioning passage. The air parameter sensors 3 can monitor the temperature value T, the humidity value H, CO ₂ and the PM2.5 of the air.

By adopting the technical scheme of the embodiment, the air quality (such as carbon dioxide concentration, PM2.5 concentration and the like) of the air purified by the air conditioning equipment is obtained, and the bypass air intake quantity and the air conditioning air intake quantity are determined according to the air quality of the purified air. According to the bypass wind intake quantity and the air conditioning wind intake quantity, the fan power, the bypass ventilation valve opening and the air conditioning valve opening are determined, and under the condition that a user needs to adjust the temperature and the humidity, the operating parameters of the temperature adjusting device and the humidity adjusting device are determined by combining the temperature and humidity value of the purified air, so that energy saving is realized under the condition that the comfort requirement of the user is met, and accordingly, the operating parameters of the air conditioning equipment, such as the fan power, the bypass valve opening, the air conditioning valve opening and the operating states of the heat exchanger and components of the air conditioning equipment, are adjusted on the basis of the air quality and the air temperature and the humidity of the purified air of the air conditioning equipment, so that the opening time of the bypass function of the air conditioning equipment is prolonged on the premise that the use comfort of the user is ensured, and the energy saving operation of the air conditioning equipment is realized.

According to an embodiment of the present invention, there is also provided a control apparatus of an air conditioning apparatus corresponding to the control method of the air conditioning apparatus. Referring to fig. 6, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The air conditioning apparatus has a blower, a bypass damper, an air conditioning damper, and an air conditioning device. Outside air is sucked by the fan and is divided into two paths: one path enters the indoor side after passing through the bypass air valve, and the other path enters the indoor side after passing through the air conditioning air valve and the air conditioning device. Specifically, the air outside the air conditioning equipment is sucked into the air conditioning equipment through the fan and then is divided into two paths: one path enters the indoor side of the air conditioning equipment after passing through the bypass air valve, and the other path enters the indoor side of the air conditioning equipment after passing through the air conditioning air valve and the air conditioning device.

The control device of the air conditioning equipment comprises: an acquisition unit 102, a determination unit 104, and a control unit 106.

Wherein the acquisition unit 102 is configured to acquire an air quality parameter of the indoor side and to acquire a control instruction of a user of the air conditioning apparatus. Such as carbon dioxide concentration, PM2.5 concentration, etc. Such as temperature control instructions, humidity control instructions, etc. The specific function and process of the acquisition unit 102 refer to step S110.

A determining unit 104 configured to determine, based on the air quality parameter, a target opening degree of the bypass damper as a first opening degree, a target opening degree of the air-conditioning damper as a second opening degree, and a target power of the blower. The specific function and processing of the determination unit 104 are described in step S120.

In some embodiments, the air quality parameter comprises: the carbon dioxide concentration of the side ventilation, the carbon dioxide concentration of the air-conditioning wind, the carbon dioxide concentration of the mixed wind of the side ventilation and the air-conditioning wind, the PM2.5 concentration of the side ventilation, the PM2.5 concentration of the air-conditioning wind, and the PM2.5 concentration of the mixed wind of the side ventilation and the air-conditioning wind, the rated carbon dioxide concentration, the rated PM2.5 concentration, and the required air volume set by a user. As shown in fig. 7, various types of air parameter sensors 3 are provided on the outdoor side (i.e., the outside of the blower) of the total air intake passage, and on the indoor side (i.e., the output side of the air-conditioning air) of the air-conditioning passage.

The determining unit 104 determines, according to the air quality parameter, that a target opening degree of the bypass damper is denoted as a first opening degree, that a target opening degree of the air-conditioning damper is denoted as a second opening degree, and that a target power of the fan includes:

The determining unit 104 is specifically further configured to determine a first relationship between the carbon dioxide concentration of the mixed air, the carbon dioxide concentration of the bypass air, the carbon dioxide concentration of the air-conditioning air, the bypass air intake volume and the air-conditioning air intake volume, and the rated carbon dioxide concentration; a second relationship between the PM2.5 concentration of the mixed wind, the PM2.5 concentration of the bypass wind, the PM2.5 concentration of the air-conditioning wind, the bypass wind intake amount and the air-conditioning wind intake amount, and the rated PM2.5 concentration, according to the PM2.5 concentration of the mixed wind; and determining the bypass air intake and the air conditioning air intake according to a third relationship among the required air volume, the bypass air intake and the air conditioning air intake. The specific function and processing of the determination unit 104 is also referred to in step S210.

The determining unit 104 is specifically further configured to determine the target power of the fan according to the required air volume. The specific function and processing of the determination unit 104 is also referred to step S220.

The determining unit 104 is specifically further configured to determine, according to the required air volume, the bypass air intake volume, and the air-conditioning air intake volume, that the target opening degree of the bypass air valve is denoted as a first opening degree, and that the target opening degree of the air-conditioning air valve is denoted as a second opening degree. The specific function and processing of the determination unit 104 is also referred to step S230.

The following is an exemplary description of the implementation of the energy-saving control device of the air conditioning apparatus.

The invention relates to an energy-saving control device of air conditioning equipment, which is designed by the scheme of the invention, and is shown in the following formula:

PM2.5 _{Out of} is the PM2.5 concentration of the mixed wind after the side ventilation and air conditioning wind are mixed (considered as the side ventilation and air conditioning wind are uniformly mixed), and is denoted as the mixed wind PM2.5 concentration. PM2.5 _{bypass circuit} is the PM2.5 concentration of the bypass wind, and is denoted as the bypass wind PM2.5 concentration. PM2.5 _{Regulation of} is the PM2.5 concentration of the air-conditioned air, and is denoted as the PM2.5 concentration of the air-conditioned air. PM2.5 _{Forehead (forehead)} is a default or user-set PM2.5 concentration limit, noted as the nominal PM2.5 concentration. PM2.5 concentration of each air outlet of mixed air, side ventilation, air conditioning air and the like is required to be less than or equal to rated PM2.5 concentration.

In some embodiments, the determining unit 104 determines, according to the required air volume, a target power of the fan, including:

The determining unit 104 is specifically further configured to determine a wind pressure of the fan, a mechanical transmission efficiency of the fan, and a fan efficiency of the fan. The specific function and processing of the determination unit 104 is also referred to step S310.

The determining unit 104 is specifically further configured to determine a ratio of a product of the required air volume and the air pressure to a product of the mechanical transmission efficiency and the fan efficiency as the target power of the fan. The specific function and processing of the determination unit 104 is also referred to step S320.

The air conditioning equipment controls the operation of the fan according to the calculated fan power P, and further controls the total air intake of the air conditioning equipment, so that the total air intake of the air conditioning equipment meets the required air volume V _{Is required to}.

In some embodiments, the determining unit 104 determines, according to the required air volume, the bypass air intake volume, and the air-conditioning air intake volume, a target opening degree of the bypass air valve to be a first opening degree, and determines the target opening degree of the air-conditioning air valve to be a second opening degree, including:

The determining unit 104 is specifically further configured to determine, according to a ratio of the bypass air intake volume to the required air volume, an opening angle of the bypass air valve, and record the opening angle as a first opening as a target opening of the bypass air valve. The specific function and processing of the determination unit 104 is also referred to in step S410.

The determining unit 104 is specifically further configured to determine, according to a ratio of the air intake volume of the air-conditioning air to the required air volume, an opening angle of the air-conditioning air valve, and record the opening angle as a second opening degree as a target opening degree of the air-conditioning air valve. The specific function and processing of the determination unit 104 is also referred to in step S420.

The determining unit 104 is further configured to determine a target adjustment parameter of the air conditioning device based on the air quality parameter in combination with the control instruction. The specific function and processing of the determination unit 104 is also referred to step S130.

As shown in fig. 7, the air conditioning apparatus includes: air quality adjusting device, humidity adjusting device (such as humidifying device or dehumidifying device), heat exchanger device, etc. The fan, the bypass air valve, the air-conditioning air valve, the air quality adjusting device, the humidity adjusting device (such as a humidifying device or a dehumidifying device) and the heat exchanger device are controllable air-conditioning devices. The fan may control the total air intake by rotational speed, for example: the air conditioning equipment controls the operation of the fan according to the calculated fan power P, and further controls the air conditioning equipment

The total air inlet quantity is made to meet the requirement air quantity V _{Is required to}. The side ventilation valve and the air conditioning air valve can control the air quantity passing through the side ventilation valve and the air conditioning air valve by adjusting the opening degree of the side ventilation valve and the air conditioning air valve, for example: the opening values of the side ventilation valve and the air conditioning air valve are controlled through the opening angle alpha _{bypass circuit} of the side ventilation valve and the opening angle beta _{Regulation of} of the air conditioning air valve, so that the proportion of the total air quantity of the air conditioning equipment to the side ventilation and the air conditioning air is controlled. The air quality adjusting device is internally provided with a filtering device for adsorbing PM2.5 and CO ₂.

The determining unit 104, based on the air quality parameter, in combination with the control instruction, determines a target adjustment parameter of the air conditioning device, including:

The determining unit 104 is specifically further configured to determine the air-conditioning wind temperature according to a fourth relationship among the bypass wind temperature, the bypass wind intake amount, the air-conditioning wind temperature, and the target temperature, in the case where the temperature adjustment instruction is received. The specific function and processing of the determination unit 104 is also referred to step S510.

The determining unit 104 is in particular further configured to determine an operating parameter of the heat exchanger device as a target conditioning parameter of the heat exchanger device in the air conditioning device, based on the air conditioning wind temperature. The specific function and processing of the determination unit 104 is also referred to in step S520.

In summary, in the scheme of the invention, based on the fact that the air quality purified by the air conditioning equipment can be regarded as a fixed value and the air temperature and humidity can be regarded as a controllable value, 5 formulas (namely formulas 1-1, 1-2, 2-1, 2-2 and 2-3) are constructed, the working states of the fan, the air valve, the heat exchanger and components thereof are calculated by taking the air quality and the temperature and humidity as standard as first borrowing, and the loads are operated according to the calculation results.

Thus, according to the scheme of the invention, the values of the air inlet volume V _{Regulation of} and the bypass air inlet volume V _{bypass circuit} are determined through the formulas 1-1 and 1-2, and the theoretical values of the fan power P, the bypass air valve opening angle alpha _{bypass circuit}, the air inlet valve opening angle beta _{Regulation of} and the output parameters (such as the operating power of the heat exchanger and the related components in the air conditioning equipment) of the air conditioning equipment are obtained through the formulas 2-1, 2-2 and 2-3 based on the values of the air inlet volume V _{Regulation of} and the bypass air inlet volume V _{bypass circuit}, and then the actual values of the fan power P, the bypass air valve, the air conditioning air valve, the heat exchanger and the output parameters (such as the operating power of the fan power P, the bypass air valve opening angle alpha _{bypass circuit}, the air conditioning air valve opening angle beta _{Regulation of} and the output parameters (such as the operating power of the heat exchanger and the related components in the air conditioning equipment) of the air conditioning equipment are controlled through the theoretical values of the fan power P, the bypass air valve, the operating states of the air conditioning air valve, the heat exchanger and the related components in the air conditioning equipment, so that the actual values of the fan power P, the bypass air conditioning air valve, the output of the air conditioning air valve and the heat exchanger and the output values of the heat exchanger and the related components reach the theoretical values (such as the required by the fan power P, 35 and the operating parameters of the air conditioning equipment and the required by the heat exchanger and the related components and the heat exchanger and the operation parameters. Therefore, on the premise that the output air meets the user requirement, the long-time operation of the bypass function is realized, and the power consumption of the air conditioning equipment is reduced. In addition, for the air conditioning apparatus including the filter device, the filter device in the air conditioning apparatus is also protected from excessive loss of the air conditioning apparatus.

And a control unit 106 configured to adjust the opening degree of the bypass damper to the first opening degree, adjust the opening degree of the air-conditioning damper to the second opening degree, control the blower to operate at the target power, and control the air-conditioning apparatus to operate at the target conditioning parameter, so as to realize energy-saving control of the air-conditioning apparatus. The specific function and process of the control unit 106 refer to step S140.

The invention designs an energy-saving control device of air conditioning equipment, in particular to a control device of an auxiliary air inlet mode by taking a bypass function of the air conditioning equipment, which can be regarded as a fixed value based on the air quality purified by the air conditioning equipment and can be regarded as a controllable value based on the air temperature and humidity, and the operation of the air conditioning equipment is intelligently controlled, so that the opening time of the bypass function is prolonged as much as possible under the condition that the quality, the temperature and the humidity of output air and the like are ensured to meet the requirements of users, the energy-saving operation of the air conditioning equipment is realized, the problem that the energy-saving effect is weak due to short entering time of the bypass function of the air conditioning equipment is solved, and the problem that the indoor air quality possibly does not reach the standard due to the opening of the bypass function is also solved. Meanwhile, the use of the filtering device in the air conditioning equipment is reduced, the service life of the filtering device in the air conditioning equipment is prolonged, and the problems that the bypass function of the air conditioning equipment is short in access time, most of air exchange can pass through the filtering device, and the service life loss is high are solved.

Specifically, fig. 9 is a schematic flow chart of an embodiment of an energy saving control device of an air conditioning apparatus. As shown in fig. 9, the energy saving control device of the air conditioning apparatus includes:

Step 2, calculating the working power (such as fan power P) of the fan according to formulas 1-1, 1-2 and 2-1 in the control device, bypassing the air valve and opening angle values (such as a bypass air valve opening angle alpha _{bypass circuit} and an air-conditioning air valve opening angle beta _{Regulation of}) of the air-conditioning air valve according to the formula 2-2 in the control device, controlling the fan to work according to the calculated fan power P, and opening the air valve according to the calculated angle values (such as a bypass air valve opening angle alpha _{bypass circuit} and an air-conditioning air valve opening angle beta _{Regulation of}).

In the scheme of the invention, the air quality based on the air-conditioning wind can be regarded as a fixed value, and the air temperature and humidity of the air-conditioning wind can be regarded as a controllable value, wherein the two points are preset or calculated by an internal program of the air-conditioning equipment and are not monitored by a sensor. And then inputting the temperature and humidity, the concentration of CO ₂ and the like monitored by the sensor, and opening of an air valve, the rotating speed of a fan and the like in the air conditioning equipment. In this way, the proposal of the invention increases the opening time of the bypass function and the inlet air quantity of the bypass air by optimizing the bypass function of the air conditioning equipment as the control device of auxiliary air inlet, thereby at least solving the problems of short opening time of the bypass function and poor energy-saving effect.

It was verified that with the scheme of the present invention, the power consumption of the air conditioning apparatus can be reduced by 15% as compared with the control means in the related scheme, and the filtration amount of the filtration means in the air conditioning apparatus can be reduced, so that the life of the filtration means in the air conditioning apparatus can be increased by 20%.

Since the processes and functions implemented by the apparatus of the present embodiment substantially correspond to the embodiments, principles and examples of the foregoing methods, the descriptions of the embodiments are not exhaustive, and reference may be made to the descriptions of the foregoing embodiments and their descriptions are omitted herein.

By adopting the technical scheme of the invention, the air quality (such as carbon dioxide concentration, PM2.5 concentration and the like) of the air purified by the air conditioning equipment is obtained, and the bypass air intake quantity and the air conditioning air intake quantity are determined according to the air quality of the purified air; according to the bypass air inlet quantity and the air conditioning air inlet quantity, the fan power, the opening of the bypass air valve and the opening of the air conditioning air valve are determined, and under the condition that a user needs to adjust the temperature and the humidity, the operating parameters of the temperature adjusting device and the humidity adjusting device are determined by combining the temperature and the humidity value of the purified air, so that energy conservation is realized under the condition that the comfort requirement of the user is met, and the power consumption and the equipment loss of the air conditioning equipment are reduced.

According to an embodiment of the present invention, there is also provided an air conditioning apparatus corresponding to the control device of the air conditioning apparatus. The air conditioning apparatus may include: the control device of the air conditioning apparatus described above.

Since the processes and functions implemented by the air conditioning apparatus of the present embodiment substantially correspond to the embodiments, principles and examples of the foregoing devices, the descriptions of the present embodiment are not exhaustive, and reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.

By adopting the technical scheme of the invention, the air quality (such as carbon dioxide concentration, PM2.5 concentration and the like) of the air purified by the air conditioning equipment is obtained, and the bypass air intake quantity and the air conditioning air intake quantity are determined according to the air quality of the purified air; according to the bypass air intake quantity and the air conditioning air intake quantity, the fan power, the opening of the bypass air valve and the opening of the air conditioning air valve are determined, and under the condition that a user needs to adjust the temperature and the humidity, the operating parameters of the temperature adjusting device and the humidity adjusting device are determined by combining the temperature and humidity values of the purified air, so that energy conservation is realized under the condition that the comfort requirement of the user is met, and therefore, the energy-saving operation of the air conditioning equipment is realized under the condition that the quality, the temperature and the humidity and the like of the output air meet the user requirement, and the air output by the air conditioning equipment is also promoted to weaken the indoor air quality due to the fact that the bypass function is started.

According to an embodiment of the present invention, there is also provided a storage medium corresponding to a control method of an air conditioning apparatus, the storage medium including a stored program, wherein the apparatus in which the storage medium is controlled to execute the control method of the air conditioning apparatus described above when the program runs.

Since the processes and functions implemented by the storage medium of the present embodiment substantially correspond to the embodiments, principles and examples of the foregoing methods, the descriptions of the present embodiment are not exhaustive, and reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.

By adopting the technical scheme of the invention, the air quality (such as carbon dioxide concentration, PM2.5 concentration and the like) of the air purified by the air conditioning equipment is obtained, and the bypass air intake quantity and the air conditioning air intake quantity are determined according to the air quality of the purified air; according to the bypass air inlet quantity and the air conditioning air inlet quantity, the fan power, the opening of the bypass air valve and the opening of the air conditioning air valve are determined, and under the condition that a user needs to adjust the temperature and the humidity, the operating parameters of the temperature adjusting device and the humidity adjusting device are determined by combining the temperature and humidity values of the purified air, so that energy conservation is realized under the condition that the comfort requirement of the user is met, and under the condition that the quality, the temperature and the humidity of the output air and the like meet the user requirement, the opening time of the bypass function is prolonged as much as possible, so that energy-saving operation of the air conditioning equipment is realized.

In summary, it is readily understood by those skilled in the art that the above-described advantageous ways can be freely combined and superimposed without conflict.

The above description is only an example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A control method of an air conditioning apparatus, characterized in that the air conditioning apparatus has a blower, a bypass damper, an air conditioning damper, and an air conditioning device; outside air is sucked by the fan and is divided into two paths: one path enters the indoor side after passing through the bypass air valve, and the other path enters the indoor side after passing through the air conditioning air valve and the air conditioning device;

the control method of the air conditioning device comprises the following steps:

Acquiring an air quality parameter of the indoor side and a control instruction of a user of the air conditioning equipment;

Determining a target opening degree of the bypass air valve to be a first opening degree, determining a target opening degree of the air conditioning air valve to be a second opening degree and determining target power of the fan according to the air quality parameter; and

Determining a target regulation parameter of the air conditioning device based on the air quality parameter in combination with the control instruction;

Adjusting the opening of the bypass air valve to the first opening, adjusting the opening of the air-conditioning air valve to the second opening, controlling the fan to operate according to the target power, and controlling the air-conditioning device to operate according to the target conditioning parameter;

wherein the air quality parameter comprises: the carbon dioxide concentration of the side ventilation, the carbon dioxide concentration of the air-conditioning wind, the carbon dioxide concentration of the mixed wind of the side ventilation and the air-conditioning wind, the PM2.5 concentration of the side ventilation, the PM2.5 concentration of the air-conditioning wind, and the PM2.5 concentration of the mixed wind of the side ventilation and the air-conditioning wind, the rated carbon dioxide concentration, the rated PM2.5 concentration, and the required air volume set by a user;

Determining, according to the air quality parameter, that the target opening degree of the bypass damper is denoted as a first opening degree, that the target opening degree of the air-conditioning damper is denoted as a second opening degree, and that the target power of the fan includes:

According to the carbon dioxide concentration of the mixed wind, a first relation between the carbon dioxide concentration of the bypass wind, the carbon dioxide concentration of the air-conditioning wind, the bypass wind inlet air quantity and the air-conditioning wind inlet air quantity and the rated carbon dioxide concentration; a second relationship between the PM2.5 concentration of the mixed wind, the PM2.5 concentration of the bypass wind, the PM2.5 concentration of the air-conditioning wind, the bypass wind intake amount and the air-conditioning wind intake amount, and the rated PM2.5 concentration, according to the PM2.5 concentration of the mixed wind; determining the bypass air intake and the air conditioning air intake according to a third relation among the required air volume, the bypass air intake and the air conditioning air intake;

Determining the target power of the fan according to the required air quantity;

and determining a target opening degree of the bypass air valve as a first opening degree and determining a target opening degree of the air conditioning air valve as a second opening degree according to the required air volume, the bypass air inlet volume and the air conditioning air inlet volume.

2. The control method of an air conditioning apparatus according to claim 1, wherein determining the target power of the blower according to the required air volume includes:

Determining wind pressure of the fan, mechanical transmission efficiency of the fan and fan efficiency of the fan;

And determining the ratio of the product of the required air quantity and the air pressure to the product of the mechanical transmission efficiency and the fan efficiency as the target power of the fan.

3. The control method of an air conditioning apparatus according to claim 1, wherein determining a target opening degree of the bypass damper as a first opening degree and determining a target opening degree of the air conditioning damper as a second opening degree based on the required air volume, and the bypass air intake volume and the air conditioning air intake volume, comprises:

Determining an opening angle of the bypass air valve according to the ratio of the inlet air quantity of the bypass air to the required air quantity, and recording the opening angle as a first opening degree of the target opening degree of the bypass air valve;

And determining the opening angle of the air-conditioning air valve according to the ratio of the air inlet volume of the air-conditioning air to the required air volume, and recording the opening angle as a second opening degree of the target opening degree of the air-conditioning air valve.

4. A control method of an air conditioning apparatus according to any one of claims 1 to 3, characterized in that the air conditioning device includes: a heat exchanger device; the air quality parameter further comprises: side ventilation temperature and air-conditioning wind temperature, target temperature set by user; the control instruction includes: a temperature adjustment command;

based on the air quality parameter, in combination with the control instruction, determining a target conditioning parameter of the air conditioning device, comprising:

Determining the air-conditioning wind temperature according to a fourth relationship among the bypass wind temperature, the bypass wind intake amount, the air-conditioning wind temperature, and the target temperature when the temperature adjustment instruction is received;

And determining the operation parameter of the heat exchanger device according to the air conditioning wind temperature as the target conditioning parameter of the heat exchanger device in the air conditioning device.

5. A control device of an air conditioning apparatus, characterized in that the air conditioning apparatus has a blower, a bypass damper, an air conditioning damper, and an air conditioning device; outside air is sucked by the fan and is divided into two paths: one path enters the indoor side after passing through the bypass air valve, and the other path enters the indoor side after passing through the air conditioning air valve and the air conditioning device;

The control device of the air conditioning equipment comprises:

An acquisition unit configured to acquire an air quality parameter of the indoor side and to acquire a control instruction of a user of the air conditioning apparatus;

A determining unit configured to determine, based on the air quality parameter, a target opening degree of the bypass damper as a first opening degree, a target opening degree of the air-conditioning damper as a second opening degree, and a target power of the blower;

the determining unit is further configured to determine a target adjustment parameter of the air conditioning device based on the air quality parameter in combination with the control instruction;

A control unit configured to adjust an opening degree of the bypass damper to the first opening degree, adjust an opening degree of the air-conditioning damper to the second opening degree, control the blower to operate at the target power, and control the air-conditioning apparatus to operate at the target conditioning parameter;

The determining unit determines, according to the air quality parameter, that a target opening degree of the bypass damper is denoted as a first opening degree, that a target opening degree of the air-conditioning damper is denoted as a second opening degree, and that a target power of the fan includes:

Determining the target power of the fan according to the required air quantity;

6. The control device of an air conditioning apparatus according to claim 5, wherein the determining unit determines the target power of the blower according to the required air volume, comprising:

7. The control device of an air-conditioning apparatus according to claim 5, wherein the determining unit determining, based on the required air volume, and the bypass air intake volume and the air-conditioning air intake volume, a target opening degree of the bypass air valve as a first opening degree, and a target opening degree of the air-conditioning air valve as a second opening degree, includes:

8. The control device of an air conditioning apparatus according to any one of claims 5 to 7, characterized in that the air conditioning device includes: a heat exchanger device; the air quality parameter further comprises: side ventilation temperature and air-conditioning wind temperature, target temperature set by user; the control instruction includes: a temperature adjustment command;

The determining unit, based on the air quality parameter, in combination with the control instruction, determines a target adjustment parameter of the air conditioning device, including:

9. An air conditioning apparatus, comprising: the control device of an air conditioning apparatus according to any one of claims 5 to 8.

10. A storage medium comprising a stored program, wherein the program, when executed, controls an apparatus in which the storage medium is located to execute the control method of the air conditioning apparatus according to any one of claims 1 to 4.