KR102608093B1 - Integrated air conditioning apparatus for ventilation and cooling capable of reflecting actual requirements and control method thereof - Google Patents

Abstract

The integrated ventilation and cooling air conditioning equipment according to one aspect of the present invention includes a ventilation module that ventilates indoor air, an air conditioning module that cools air passing through the ventilation module, the ventilation module, and the air conditioning module. An integrated air conditioner equipped with a blower that controls the amount of air passing through; a distributor for distributing air supplied from the integrated air conditioner to each room; a branch duct connecting the distributor and each room to supply air from the distributor to each room; An electric damper provided in the distributor to open and close the branch duct connected to each room; Integrated sensors that measure temperature, humidity, carbon dioxide concentration, volatile organic compounds, and fine dust in each room; and a control device that controls the opening and closing of the electric damper and the rotation speed of the blower based on the measurement value measured by the integrated sensor.

Description

Integrated air conditioning equipment for ventilation and cooling capable of reflecting actual requirements and control method thereof}

The present invention relates to integrated air conditioning equipment with integrated ventilation and cooling and its control method. More specifically, it relates to integrated air conditioning equipment with integrated ventilation and cooling that can reflect the required level of each room and its control method.

Large buildings such as apartments, apartments, buildings, and libraries are equipped with cooling, heating, and ventilation equipment.

In particular, according to building equipment standards, the installation of ventilation equipment is mandatory when constructing a new apartment building with more than 100 households. In general, ventilation equipment is formed as a duct-like structure whose both ends are connected to the inside and outside of the building, respectively. These ducts are divided into an air supply duct through which external air flows in and an exhaust duct through which internal air is discharged, allowing air to flow inside and outside the building, respectively.

Additionally, air conditioning equipment for cooling an indoor space is generally divided into an outdoor unit installed outdoors and an indoor unit installed indoors, and heat exchanges indoor air with a condenser to supply cold air indoors.

In this way, as ventilation equipment for ventilation of the room and air conditioning equipment for cooling the room are separately provided and operated separately, there is a problem that excessive energy is required to operate each equipment.

In addition, since the indoor unit of an air conditioner for cooling the room is used indoors, there is a problem that the efficiency of using indoor space is reduced.

Additionally, there was no management plan for pollutants (CO2, fine dust) generated indoors.

Accordingly, integrated air conditioning equipment that integrates ventilation and cooling is emerging. However, in such integrated air conditioning equipment, the air volume is not adjusted according to the opening degree of the damper, causing problems such as overloading the blower and generating noise, or damaging the duct or damper due to pressure in the duct.

Additionally, there were cases where overpressure caused noise and caused noise pollution.

In addition, despite the fact that the heating conditions, fine dust, and carbon dioxide concentration required for each room are different, there was a problem in supplying air under the same conditions to each room.

(Public Patent Publication) No. 10-2009-0022638 (March 4, 2009)

The present invention provides integrated ventilation and cooling air conditioning equipment that integrates and controls ventilation and cooling, and a control method thereof.

In addition, it provides integrated ventilation and cooling air conditioning equipment and its control method that can implement target environmental conditions for each room.

In addition, an integrated ventilation and cooling air conditioning equipment and a control method thereof that can control the blowing volume by considering the total number of open dampers when controlling ventilation and cooling integratedly are provided.

In addition, it provides integrated ventilation and cooling air conditioning equipment and its control method that can prevent mechanical damage to blowing equipment and reduce noise even under high air volume conditions.

The integrated ventilation and cooling air conditioning equipment according to one aspect of the present invention for achieving the above object includes a ventilation module that ventilates indoor air, an air conditioning module that cools the air passing through the ventilator module, and An integrated air conditioner including a ventilation module and a blower that controls the amount of air passing through the air conditioning module; a distributor for distributing air supplied from the integrated air conditioner to each room; a branch duct connecting the distributor and each room to supply air from the distributor to each room; An electric damper provided in the distributor to open and close the branch duct connected to each room; Integrated sensors that measure temperature, humidity, carbon dioxide concentration, volatile organic compounds, and fine dust in each room; A control device may be provided that stores the environmental requirement values set for each room and controls the opening and closing of the electric damper and the number of rotations of the blower by comparing the measured value measured by the integrated sensor with the set environmental requirement value. You can.

Additionally, at least two branch ducts connecting the distributor and each room may be installed.

Additionally, in order to prevent overpressure from being applied to the branch duct or the electric damper, an overpressure prevention sensor installed inside the branch duct may be further provided.

In addition, a silencer may be further provided at the end of the branch duct to reduce noise of air discharged from the branch duct.

A control method of integrated ventilation and cooling air conditioning equipment according to an aspect of the present invention includes the steps of setting temperature, humidity, carbon dioxide concentration, volatile organic compound concentration, and fine dust concentration for each room; Measuring the temperature, humidity, carbon dioxide concentration, volatile organic compounds, and fine dust in each room and operating an operation mode suitable for each room among cooling mode, ventilation mode, and air purification mode; Analyzing the operation mode of each room to determine the total number of open dampers; And it may include a step of adjusting the blowing volume by adjusting the rotation speed of the blower provided in the integrated air conditioner that integrates the ventilation module and the air conditioning module according to the total number of dampers to be opened.

In addition, among the cooling mode, the ventilation mode, and the air purification mode, it is first determined whether there is a room in which the cooling mode is operated, and if there is a room in which the cooling mode is in operation, the room operating in the ventilation mode or the air purification mode is selected. By closing the dampers, the total number of open dampers can be calculated.

In addition, if there is no room operating in the cooling mode, it is determined whether there is a room operating in the ventilation mode, and if there is a room operating in the ventilation mode, the damper of the room in the air purification mode can be closed to switch to the ventilation mode.

In addition, after switching to the ventilation mode, it is determined whether the ventilation mode is a rapid ventilation mode, and if the ventilation mode is a rapid ventilation mode, the rotation speed of the blower is adjusted to maintain the blowing volume at 350 m ³ /h, and If the ventilation mode is not rapid ventilation mode, it can be determined whether the total number of open dampers is 3 or more.

In addition, when the total number of open dampers is 3 or more, the rotation speed of the blower is adjusted to maintain the blowing volume at 250 m ³ /h, and when the total number of open dampers is less than 3, the rotation of the blower The number can be adjusted to maintain 150m ³ /h.

According to the ventilation and cooling integrated air conditioning equipment and its control method of the present invention, ventilation and cooling can be controlled in an integrated manner, thereby saving the space where each device is installed.

In addition, different target environmental conditions can be implemented for each room, providing an optimal environment for occupants in each room.

In addition, the blowing volume can be adjusted according to the opening of the duct, and an overpressure prevention sensor can be installed to prevent overpressure from being applied to the duct or damper, thereby preventing damage to equipment.

Additionally, an overpressure prevention sensor can be installed in the duct to prevent overpressure from being applied to the duct or damper.

In addition, it is possible to prevent noise caused by overpressure by providing a silencer to reduce noise from air discharged from the branch duct.

1 is a plan view showing the concept of integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention.
Figure 2 is a perspective view of a distributor provided in the ventilation and cooling integrated air conditioning equipment of Figure 1.
Figure 3 is a plan view showing the control sensor and control unit installed in the ventilation and cooling integrated air conditioning equipment according to an embodiment of the present invention.
Figure 4 is a block diagram showing the relationship between each component constituting the ventilation and cooling integrated air conditioning equipment according to an embodiment of the present invention.
Figure 5 is a flowchart showing a control method of integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention.
Figure 6 is a flow chart showing a method of determining the operation mode of each room in the ventilation and cooling integrated air conditioning equipment according to an embodiment of the present invention.
Figure 7 is a flow chart showing a household-level control method in integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings. However, it goes without saying that the present invention is not limited to these embodiments and can be modified into various forms.

In the drawings, parts not related to the description are omitted in order to clearly and briefly explain the present invention, and identical or extremely similar parts are denoted by the same drawing reference numerals throughout the specification. In addition, in the drawings, the thickness, area, etc. are enlarged or reduced in order to make the explanation more clear, so the thickness, area, etc. of the present invention are not limited to what is shown in the drawings.

And when a part is said to “include” another part throughout the specification, it does not exclude other parts and may further include other parts, unless specifically stated to the contrary.

Figure 1 is a plan view showing the concept of integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention.

Referring to Figure 1, the ventilation and cooling integrated air conditioning system according to an embodiment of the present invention includes an integrated air conditioner (100) provided in the outdoor air room (10); A distributor (200) for distributing the air supplied from the integrated air conditioner (100) to each room; In order to supply air from the distributor 200 to each room, a branch duct 300 is provided to connect the distributor 200 and each room.

The integrated air conditioner 100 has both a ventilation function to ventilate indoor air and a cooling function to cool external air and allow it to flow into the room. Since this integrated air conditioner 100 is installed in the outdoor room 10 and performs both ventilation and cooling functions, there is no need to install a separate air conditioner indoors, and thus the utilization of indoor space can be increased.

In order to implement both ventilation and cooling functions, the integrated air conditioner 100 includes a ventilation module 110 that ventilates indoor air, an air conditioning module 120 that cools the air passing through the ventilation module 110, and , and a blower 130 that controls the amount of air passing through the ventilation module 110 and the air conditioning module 120.

The ventilation module 110 is a device that ventilates indoor air by introducing outdoor air into the indoor space and discharging indoor air outdoors. This ventilation module 110 is equipped with a total heat exchanger (not shown), etc., and exchanges heat between the air flowing into the room and the air discharged outdoors, thereby saving the energy needed to cool or heat the room. In general, It has the same configuration as the ventilation module used.

Although not shown in detail, the air conditioning module 120 uses a cooling system using a general refrigerant cycle. That is, it can be formed by having a compressor, condenser, expansion valve, and evaporator connected by a refrigerant pipe.

The blower 130 is a device that controls the amount of air passing through the ventilation module 110 and the air conditioning module 120. The rotation speed of the blower 130 may be linearly controlled by a servo motor or the like. In this way, the amount of air blown by the blower 130 can be adjusted by adjusting the rotation speed of the blower 130.

Figure 2 is a perspective view of a distributor provided in the ventilation and cooling integrated air conditioning equipment of Figure 1.

Referring to FIG. 2, the distributor 200 is a device for distributing air supplied from the integrated air conditioner 100 to each room.

The distributor 200 has a case 210 that forms an external shape. One side of the case 210 is connected to the supply duct 220 that receives air from the integrated air conditioner 100, and the other side of the case 210 is a branch duct ( 300).

At this time, at least two branch ducts 300 connecting the distributor 200 and each room may be installed. For example, the number of branch ducts 300 connecting the distributor 200 to the living room may be two or more, and the number of branch ducts 300 connecting the distributor 200 to the master bedroom may be two or more.

Meanwhile, an electric damper 250 is provided in a portion of the branch duct 300 close to the distributor 200 to open and close the branch duct 300 connected to each room. The electric damper 250 is opened or closed by a motor, and can automatically open and close the branch duct 300.

In this way, by installing the electric damper 250 in each branch duct 300, the amount of air supplied to each room can be adjusted. For example, to increase the amount of air supplied to the living room, both branch ducts 300 connected to the living room are opened, and to partially reduce the amount of air supplied to the living room, one of the two branch ducts 300 connected to the living room is opened. One can be open and one can be closed. Alternatively, both branch ducts 300 connected to the living room can be closed to block air supply to the living room.

Additionally, an overpressure prevention sensor 260 may be provided inside the branch duct to prevent overpressure from being applied to the branch duct 300 or the electric damper 250. The overpressure prevention sensor 260 detects whether overpressure is applied inside the branch duct 300 and reports the result to the control device 500, which will be described later, so that the control device 500 adjusts the rotation speed of the blower 130. Be careful to avoid overpressure.

Referring again to FIG. 1, a silencer 270 may be provided at the end of the branch duct 300 to reduce noise of air discharged from the branch duct 300. The silencer 270 is a sound-absorbing duct-type silencer and can be designed to reduce mid- and high-pitched sounds by providing sound-absorbing material inside the duct.

Meanwhile, an integrated sensor is installed in each room to measure the air environment in each room.

Figure 3 is a plan view showing the control sensor and control unit installed in the ventilation and cooling integrated air conditioning equipment according to an embodiment of the present invention.

As shown in Figure 3, the integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention includes an integrated sensor 400 that measures temperature, humidity, carbon dioxide concentration, volatile organic compounds, and fine dust in each room; And a control device 500 that controls the opening and closing of the electric damper 250 and the rotation speed of the blower 130 based on the measurement value measured by the integrated sensor 400.

The integrated sensor 400 is a temperature sensor that can measure the temperature of each room, a humidity sensor that can measure humidity, a carbon dioxide concentration sensor that can measure carbon dioxide concentration, and a volatile organic compound sensor that can measure the concentration of volatile organic compounds. It is a sensor that integrates a compound concentration sensor and a fine dust sensor that can measure fine dust into one module.

The control device 500 is a device that receives various information measured by the integrated sensor 400 and sends out signals to control each device. In general, it may be formed in the form of a wall pad installed in a living room, etc.

In this embodiment, the control device 500 can implement various modes by controlling ventilation and cooling integrated air conditioning equipment. For example, a cooling mode, a ventilation mode, an air purification mode, a mode in which cooling and outdoor air are introduced simultaneously, etc. may be implemented.

Figure 4 is a block diagram showing the relationship between each component constituting the ventilation and cooling integrated air conditioning equipment according to an embodiment of the present invention.

Referring to FIG. 4, the integrated sensor 400 measures temperature, humidity, carbon dioxide concentration, volatile organic compounds, and fine dust in each room, and transmits the measured information to the control device 500.

Additionally, the overpressure prevention sensor 260 detects whether overpressure is applied inside the branch duct 300 and transmits the result to the control device 500.

The control device 500 controls the blower 130 to adjust the blowing volume based on various information measured by the integrated sensor 400 and the overpressure prevention sensor 260, and opens and closes the electric damper 250 connected to each room to provide various Controls so that the mode can be implemented.

In the above, the ventilation and cooling integrated air conditioning system according to an embodiment of the present invention has been described. Next, the control method of the ventilation and cooling integrated air conditioning system will be described.

Figure 5 is a flowchart showing a control method of integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention.

The control method of integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention includes the steps of setting temperature, humidity, carbon dioxide concentration, volatile organic compound concentration, and fine dust concentration for each room (S100); A step of measuring the temperature, humidity, carbon dioxide concentration, volatile organic compounds, and fine dust of each room and operating an operation mode suitable for each room among cooling mode, ventilation mode, and air purification mode (S200); Analyzing the operation mode of each room to determine the total number of open dampers (S300); And a step (S400) of controlling the blowing volume by adjusting the rotation speed of the blower provided in the integrated air conditioner that integrates the ventilation module and the air conditioning module according to the total number of dampers to be opened.

Users living in each room can use an input device such as a wall pad to set environmental conditions for the room that match the characteristics of various environmental conditions that the user finds comfortable.

Specifically, you can set the temperature, humidity, and carbon dioxide concentration that you find comfortable.

The control device 500 determines the operation mode for each room by comparing the environmental conditions input by the user for each room and various information measured by the integrated sensor 400.

Figure 6 is a flow chart showing a method of determining the operation mode of each room in the ventilation and cooling integrated air conditioning equipment according to an embodiment of the present invention.

Referring to FIG. 6, the step of activating the operation mode appropriate for each room depends on whether the indoor temperature of each room is higher than the set temperature, the concentration of carbon dioxide is higher than the set concentration, and the concentration of volatile organic compounds is higher than the set concentration. It determines whether the dust concentration is higher than the set concentration and operates in the appropriate operation mode.

For example, if the indoor temperature is higher than the set temperature, the carbon dioxide concentration is higher than the set concentration (high), and the concentration of volatile organic compounds is higher than the set concentration (high), the cooling mode and the outdoor air introduction mode are executed simultaneously.

If the indoor temperature is higher than the set temperature, the carbon dioxide concentration is lower than the set concentration (high), and the concentration of volatile organic compounds is lower than the set concentration (high), only the cooling mode is executed.

If the indoor temperature is lower than the set temperature, the carbon dioxide concentration is higher than the set concentration (high), and the concentration of volatile organic compounds is higher than the set concentration (high), the super ventilation mode is activated instead of turning off the cooling.

If the indoor temperature is lower than the set temperature, the carbon dioxide concentration is not higher than the set concentration (high), and the concentration of volatile organic compounds is not higher than the set concentration (high), it is determined whether the fine dust concentration is higher than the set concentration.

At this time, if the fine dust concentration is higher than the set concentration (high), the super air purification mode is activated instead of turning off the cooling. On the other hand, if the fine dust concentration is not higher than the set concentration (high), it is again determined whether the carbon dioxide concentration is higher than the set concentration (low) or the concentration of volatile organic compounds is higher than the set concentration (low).

Accordingly, various modes are implemented such as ventilation mode, air purification mode, and all mode off.

In this way, by using integrated ventilation and cooling air conditioning equipment, various types of operation modes can be provided to each room. When providing various types of operation modes, the total number of dampers (250) opened per household is different. You lose. Even though the total number of open dampers 250 varies in this way, if the blower 130 provides a certain amount of air volume, overpressure may be applied to the duct 300 or the damper 250, causing damage to the damper 250, etc. In this embodiment, the rotation speed of the blower 130 provided in the integrated air conditioner 100, which integrates the ventilation module and the air conditioning module, is adjusted according to the total number of open dampers 250 to control the duct 300 or damper ( 250) can prevent overpressure. Therefore, mechanical damage can be prevented.

Below, the control method for households equipped with integrated ventilation and cooling air conditioning equipment and the method for determining the operation mode for each room will be described in more detail.

Figure 7 is a flow chart showing a household-level control method in integrated ventilation and cooling air conditioning equipment according to an embodiment of the present invention.

Referring to FIG. 7, it is first determined whether there is a room in which the cooling mode is operated among the cooling mode, ventilation mode, and air purification mode (S410). Additionally, if there is a room in the cooling mode, the dampers 250 in the room operating in the ventilation mode or air purification mode are closed to calculate the total number of open dampers 250. For example, if the number of open dampers 250 is 5 or more, the blower 130 is rotated at a high speed (350 m ³ /h), and if the number of open dampers 250 is 4 or more, the blower 130 is rotated at a high speed (350 m ³ /h). /h), if the number of open dampers 250 is 2 or 3, it rotates at about (350m ³ /h), and if the number of open dampers 250 is 1, it rotates at low (100m ^{3 /} h) h) and rotate it.

If there is no room operating in cooling mode, it is determined whether there is a room operating in ventilation mode (S420). At this time, if there is a room in which the ventilation mode is in operation, the damper 250 of the room in which the air purification mode is in operation is closed to switch to the ventilation mode.

After switching to the ventilation mode, it is determined whether the ventilation mode is a rapid ventilation mode (S430). When the ventilation mode is the rapid ventilation mode, the rotation speed of the blower 130 is adjusted to maintain the blower 130 at a high speed (350 m ³ /h), and when the ventilation mode is not the rapid ventilation mode, the total number of dampers opened is Determine whether the number is 3 or more (S440).

At this time, if the total number of open dampers 250 is 3 or more, the blower 130 is rotated at medium speed (250 m ³ /h), and if the total number of open dampers 250 is less than 3, the blower 130 ) is rotated at approximately (150 m ³ /h).

Meanwhile, each room can operate an appropriate operation mode based on the temperature, humidity, carbon dioxide, concentration of volatile organic compounds, fine dust, etc. measured by the integrated sensor 400.

In this way, according to the ventilation and cooling integrated air conditioning system and its control method according to an embodiment of the present invention, various operation modes can be operated according to the conditions of each room, and the blower is operated according to the number of dampers opened according to each operation mode. By controlling the blowing volume, overpressure can be prevented in the duct or damper, thereby preventing damage to the equipment.

In the above, the integrated ventilation and cooling air conditioning system and its control method according to an embodiment of the present invention have been described, but the spirit of the present invention is not limited to the embodiments presented in this specification. Additionally, a person skilled in the art who understands the spirit of the present invention will be able to easily suggest other embodiments by adding, changing, deleting, or adding components within the scope of the same spirit, but this is also within the scope of the present invention. They will say it costs money.

100: integrated air conditioner 200: distributor
250: Damper 260: Overpressure prevention sensor
270: silencer 300: branch duct
400: Integrated sensor 500: Control device

Claims (9)

delete delete delete delete Setting the temperature, humidity, carbon dioxide concentration, volatile organic compound concentration, and fine dust concentration for each room;
Measuring the temperature, humidity, carbon dioxide concentration, volatile organic compounds, and fine dust in each room and operating an operation mode suitable for each room among cooling mode, ventilation mode, and air purification mode;
Analyzing the operation mode of each room to determine the total number of open dampers; and
A step of controlling the blowing volume by adjusting the rotation speed of the blower provided in the integrated air conditioner that integrates the ventilation module and the air conditioning module according to the total number of open dampers,
First determine whether there is a room in which the cooling mode is operated among the cooling mode, the ventilation mode, and the air purification mode,
A control method of integrated ventilation and cooling air conditioning equipment, characterized in that if there is a room in which the cooling mode is operating, the dampers of the room operating in the ventilation mode or the air cleaning mode are closed and the total number of open dampers is calculated. delete According to clause 5,
If there is no room operating in the cooling mode, determine whether there is a room operating in the ventilation mode,
A control method of integrated ventilation and cooling air conditioning equipment, characterized in that if there is a room in which the ventilation mode is in operation, the damper of the room in which the air cleaning mode is in operation is closed to switch to the ventilation mode. According to clause 7,
After switching to the ventilation mode,
Determine whether the ventilation mode is a rapid ventilation mode,
When the ventilation mode is a rapid ventilation mode, the rotation speed of the blower is adjusted to maintain the blowing volume at 350 m ³ /h,
A control method for integrated ventilation and cooling air conditioning equipment, characterized in that it determines whether the total number of open dampers is three or more when the ventilation mode is not a rapid ventilation mode. According to clause 8,
When the total number of open dampers is 3 or more, the rotation speed of the blower is adjusted to maintain the blowing volume at 250 m ³ /h,
A control method for integrated ventilation and cooling air conditioning equipment, characterized in that when the total number of open dampers is less than 3, the rotation speed of the blower is adjusted to maintain it at 150 m ³ /h.

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