KR102149678B1 - Energy recovery ventilation system that performs the control function based on the information on the window opening and closing state - Google Patents

Abstract

The present invention provides information on window opening and closing according to whether the energy recovery ventilation system (ERV) is operated according to the window opening and closing state and the state of indoor and outdoor air, thereby maintaining a comfortable indoor air state at all times, and It is to provide an energy recovery ventilation system that executes a control function based on information on window opening and closing status, installed with an efficient operation algorithm of an energy recovery ventilation system that can minimize energy consumption.

Description

Energy recovery ventilation system that performs the control function based on the information on the window opening and closing state}

The present invention relates to an energy recovery ventilation system, and more particularly, to determine whether to operate an energy recovery ventilation system (ERV) by reflecting the window opening and closing state, and also providing information on the opening and closing of the window according to the state of indoor and outdoor air. The present invention relates to an energy recovery ventilation system that executes a control function based on information on the window opening and closing state, applying an algorithm that enables efficient operation of an energy recovery ventilation device while maintaining a comfortable indoor state.

Securing the airtightness of the building is an essential factor for securing high energy performance, and furthermore, providing high-quality air to users (residents) efficiently in high-density buildings such as the Passive House designed to minimize energy consumption. For this, installation of an Energy Recovery Ventilator (ERV) is essential. However, in general, users are primarily considering natural ventilation by opening and closing windows when trying to improve indoor air quality, and it has been investigated that they operate the ventilation system when it is judged that natural ventilation by opening and closing windows is not sufficient. . That is, even if a ventilation system is installed, the actual use is insignificant despite the fact that ventilation equipment such as energy recovery ventilation system is installed in an apartment house of a certain size or more because it is turned on/off by the user's arbitrary judgment on indoor air quality. to be.

In fact, according to the result of a survey survey that investigated the use of ventilation facilities by tenants of apartment houses in 2013, 96.5% of respondents were surveyed to prioritize natural ventilation as a method of improving the indoor air environment, and 78.5% of respondents in particular Despite the knowledge of the installation of the facility, it was investigated that the use of ventilation facilities is mainly used to remove indoor odors and smoke.

Many technologies have emerged regarding the optimal ventilation operation of the ventilation system. For example, Patent Registration No. 1061195 "Optimal ventilation operation control method of hybrid ventilation system considering the ventilation load", the indoor and outdoor air of the building is It is a hybrid ventilation system equipped with both a natural ventilation system that communicates without power and ventilation, and a mechanical ventilation system that forcibly exhausts indoor air using a fan and a total heat exchanger, or inflows outside air to allow ventilation between the indoor and outdoor areas. The present invention relates to a ventilation operation control method of a ventilation system in which a mechanical ventilation system and a natural ventilation system are properly combined and operated to minimize energy consumed for ventilation while satisfying indoor comfort conditions.

In addition, Patent Registration No. 966077 "Mechanical and Natural Hybrid Ventilation Device and Ventilation Method" is designed to efficiently perform natural ventilation and mechanical ventilation in parallel considering the environment and inflow air volume such as outdoor and indoor temperature and enthalpy. The present invention relates to a hybrid ventilation device and a ventilation method for performing an appropriate amount of ventilation according to the volume of the room while maintaining the most comfortable indoor state while comparing the outdoor environment with the heat loss to the minimum.

All ventilation systems that have appeared so far, including the above patents, are not aware of the purpose or method of use of the energy recovery ventilation system, even though mechanical ventilation equipment such as energy recovery ventilation system is installed, so many ventilation systems Despite the spread, the actual ventilation system utilization rate is insignificant, and regardless of whether the window is currently open or closed, according to the user's arbitrary judgment on the quality of indoor air, once natural ventilation is given, then the ventilation system is turned on/off. Therefore, there is a problem that it is very inefficient in the operation of the energy recovery ventilation system.

In reality, it is essential to introduce an energy recovery ventilator to save energy in the building sector. Considering the reality that the government mandates the installation of an energy recovery ventilator for residential buildings of a certain size or larger, the utilization rate of the energy recovery ventilator is expanded. The emergence of an efficient operation algorithm of an energy recovery ventilator that can minimize energy consumption and an energy recovery ventilator system using the same is an urgent problem.

The present invention has been conceived to solve the above problems, and an object of the present invention is to provide information on window opening and closing according to whether the energy recovery ventilation system (ERV) is operated according to the window opening and closing state and the state of indoor and outdoor air. Provides an energy recovery ventilation system that performs a control function based on information on the window opening and closing status, equipped with an efficient operation algorithm that can minimize the energy consumption of the energy recovery ventilation system while always maintaining a comfortable indoor air condition by providing it to It is to do.

In the energy recovery ventilation system for executing a control function based on information on a window opening and closing state according to the present invention, an outdoor exhaust port and a supply port are installed on an outdoor side, and an indoor supply port and an exhaust port are respectively installed on the indoor side, It is an energy recovery ventilation system to ventilate indoor air by exchanging indoor and outdoor air by an energy recovery ventilation device installed on a duct for supply and exhaust. The energy recovery ventilation system includes a window frame to detect whether a window is opened or closed. And first and second sensors respectively attached to the window frame frame; An operation panel installed indoors for displaying information related to the operation of the ventilation system and the ventilation system; An energy recovery ventilator electrically connected to the operation panel and heat-exchanging heat exhausted from the indoor side with the air supplied to the indoor side while forming an air flow path to the indoor side or the outdoor side when performing ventilation; Including; indoor air detection sensor and outdoor air detection sensor installed to sense the state of indoor and outdoor air, equipped with a control algorithm that controls the operation of the energy recovery ventilation system according to the information on the opening and closing state of the window It is characterized in that it is configured.

Preferably, the operation panel includes a power button for setting on/off of power; A mode selection button for setting automatic or manual operation of the energy recovery ventilation device; A display unit that displays information related to the operation of the energy recovery ventilator and the current operating state of the energy recovery ventilator according to window opening and closing information, and is configured to control whether or not the energy recovery ventilator is operating and an operation mode. Allows.

Preferably, the indoor air sensor is installed at the indoor exhaust port of the exhaust duct, and the outdoor air sensor is installed at the outdoor air supply port of the energy recovery ventilator or the outer wall of the building.

Preferably, the control algorithm, when it is sensed that the outdoor air is in good condition and the window is open, displays information informing that the operation of the energy recovery ventilator is to be stopped on the display of the operation panel while the energy recovery ventilator is operated. It is controlled to turn off automatically.

Preferably, the control algorithm is controlled to display information guiding to maintain the current state on a display unit of the operation panel when the outdoor air is sensed as being good and the window is closed and the indoor air is in good condition.

Preferably, the control algorithm displays information guiding the window to open on the display unit of the operation panel when it is sensed that the outdoor air condition is good and the window is closed and the indoor air condition is bad. When the displayed information is not executed, it is controlled to automatically turn on the energy recovery ventilator.

Preferably, the control algorithm displays information guiding the window to open on the display unit of the operation panel when it is sensed that the outdoor air condition is good and the window is closed and the indoor air condition is bad. When executing the displayed information, it is controlled to automatically turn off the energy recovery ventilator.

Preferably, the control algorithm controls to automatically turn on the energy recovery ventilator while displaying information informing that the window is closed on the display unit of the operation panel when the outdoor air condition is sensed as bad and the window is open. do.

Preferably, the control algorithm automatically activates the energy recovery ventilator while displaying information guiding the operation of the energy recovery ventilator on the display unit of the operation panel when the outdoor air condition is sensed as bad and the window is closed. It is controlled to turn on.

Since the energy recovery ventilation system according to the present invention determines whether to operate the energy recovery ventilation system (ERV) according to the window opening and closing state, it provides information to stop the operation of the energy recovery ventilation system when the window is open. Depending on the air condition, the information on window opening/closing is displayed to the user in text and visually or aurally. Therefore, it provides information to prevent opening the window in bad outdoor air conditions, and only when the outdoor air quality is appropriate. Since information is provided to open the window, it is possible to increase the utilization rate of the energy recovery ventilator while minimizing the energy consumption of the energy recovery ventilator while always maintaining a comfortable indoor condition, and to efficiently operate the energy recovery ventilator.

1 is a flowchart briefly showing a control algorithm for a ventilation system according to the present invention.
2 is a schematic view showing an embodiment in which the ventilation system according to the present invention is installed.
3 is a diagram schematically showing an energy recovery ventilator and an operation panel.
4 is a diagram schematically showing an attachment state of a sensor for detecting a window opening/closing state.

The greatest technical feature of the energy recovery ventilation system according to the present invention is to provide information on window opening/closing to the user and use it to determine whether to operate the energy recovery ventilation system, thereby increasing the utilization rate of the energy recovery ventilation system and While maintaining the condition, the energy consumption of the energy recovery ventilator was minimized and it was able to operate efficiently.

In the energy recovery ventilation system according to the present invention, an outdoor exhaust port and an air supply port are installed on the outdoor side, and a plurality of indoor air supply and exhaust ports (for example, installed in each room) are respectively installed on the indoor side to control supply and exhaust. It is applied to a system to ventilate indoor air by heat exchange of indoor and outdoor air by an energy recovery ventilator installed on the duct.

2 is a diagram schematically showing an embodiment in which the energy recovery ventilation system according to the present invention is applied to a building (apartment, office, etc.), the exhaust duct 13 and the air supply duct 14 and the duct on the ceiling of the building. An energy recovery ventilator 20 is installed in the energy recovery ventilator 20, and the indoor exhaust port 23 of the energy recovery ventilator 20 is connected to an exhaust duct 13, which is a channel for air exhausted to the outside, and the exhaust duct 13 ) Is installed in a structure communicating with a plurality of exhaust ports 11 installed on the ceiling of each room 10. In addition, the indoor air supply 24 of the energy recovery ventilator 20 is connected to an air supply duct 14, which is a circulation path of air introduced into the room, and the air supply duct 14 is a ceiling part of each room 10 It is installed in a structure in communication with a plurality of air supply ports 12 installed in.

The indoor exhaust port 23 and the indoor air supply 24 of the energy recovery ventilator 20 are connected to the indoor space by the exhaust duct 13 and the air supply duct 14, and the energy recovery ventilator 20 The outdoor supply port 22 and the outdoor exhaust port 21 are connected to the outdoor space. Accordingly, when the energy recovery ventilation system is operated to ventilate the indoor air, when the external air is introduced and the path through which the indoor air is discharged is operated differently from each other.

The energy recovery ventilator 20 is a part for exchanging heat exhausted from the indoor side with the air supplied to the indoor side while forming an air flow path to the indoor side or the outdoor side when performing ventilation. The energy recovery ventilator 20 has an indoor exhaust port 23 for introducing indoor air into one side of a case having a predetermined shape, and an indoor air supply 24 for supplying outdoor air to the room. On the other side, an outdoor supply port 22 for introducing outdoor air and an outdoor exhaust port 21 for discharging indoor air to the outside are formed, and the inner space of the case is divided into four spaces by a partition wall. A heat exchange unit 25 for heat exchange between indoor air discharged to the outside and air introduced from the outside, and an exhaust fan 26 and an air supply fan 27 are respectively provided at the center of the case where the partition walls intersect, A power source and a control unit 28 are provided, and the configuration of the energy recovery ventilator 20 as described above is not a characteristic configuration of the present invention, but a structure that is already widely used, and thus further detailed descriptions are omitted.

The energy recovery ventilation system includes first and second sensors 43 and 44 that detect whether a window is opened or closed, an operation panel 30 installed indoors, and an energy recovery ventilation device electrically connected to the operation panel 30 ( 20), and an indoor air detection sensor and an outdoor air detection sensor for sensing indoor and outdoor air conditions, and a control algorithm for controlling the operation of the energy recovery ventilator 20 according to the information on the opening and closing status of the window is installed. have.

A pair of sensors is attached to detect whether the window is opened or closed. When the first sensor 43 is attached to the window frame 42, the second sensor 44 is attached to the window frame 41. As shown in FIG. 4, when the first sensor 43 and the second sensor 44 come into contact with each other, the window is recognized as closed (see ⒜ in FIG. 4), and the first sensor 43 and the second sensor 44 If) is spaced apart, it is recognized that the window is open (see ⒝ in FIG. 4). The information thus recognized is transmitted to the power supply and the control unit 28 of the energy recovery ventilator 20. The window opening/closing signal information sensed by the first sensor 43 and the second sensor 44 is wirelessly transmitted to the power and control unit 28 of the energy recovery ventilator 20. A sensor for detecting whether a window is opened or closed is preferably installed on a plurality of windows or all windows installed on an outer wall of a building rather than on one window and window frame.

The operation panel 30 is installed indoors with a power button 31, a mode selection button 32, and a display unit 33, and means for controlling the operation and operation mode of the energy recovery ventilator 20 It has a (button) and a configuration for displaying information related to the ventilation system to the user, and is electrically connected to the power supply of the energy recovery ventilation device 20 and the control unit 28. The power button 31 turns on/off the operation of the exhaust fan 26 and the air supply fan 27 installed in the energy recovery ventilator 20 by setting the power on/off. Depending on whether the exhaust fan 26 and the air supply fan 27 are operated, the energy recovery ventilator 20 is operated and stopped.

The mode selection button 32 is a button for setting automatic operation or manual operation of the energy recovery ventilation device 20, and is controlled in the automatic operation mode according to the control algorithm of the present invention. The display unit 33 is a component that displays information related to the operation of the energy recovery ventilator 20 and the current operating state of the energy recovery ventilator 20 according to window opening and closing information. It can be in various forms, such as a visual form such as a flickering or an audible form notified by an alarm or sound.

An indoor air detection sensor and an outdoor air detection sensor (not shown) are installed to sense the state of indoor and outdoor air, and the indoor air detection sensor is the exhaust port 11 located at the indoor side of the exhaust duct 13 Alternatively, it is installed in the indoor exhaust port 23 of the energy recovery ventilator 20, and the outdoor air sensor is preferably installed on the outdoor air supply port 22 of the energy recovery ventilator 20 or the outer wall of the building.

The most characteristic part of the present invention is a control algorithm for controlling the operation of the energy recovery ventilator 20 according to information on the opening and closing state of the window. Hereinafter, the control algorithm of the present invention will be described with reference to FIG. 1. 1 shows a control algorithm when operating in an automatic driving mode.

First, in the control algorithm, when the outdoor air sensor detects that the state of the outdoor air is good, and when the first and second sensors 43 and 44 sense that the window is open, energy is sent to the display unit 33 of the operation panel. Controls to automatically turn off the energy recovery ventilator while displaying information informing that the operation of the recovery ventilator 20 is stopped. Of course, since the window is open, the energy recovery ventilator will be stopped, so the energy recovery ventilator is off.

When the outdoor air sensor detects that the outdoor air is in good condition, the first and second sensors 43 and 44 detect that the window is closed, and the indoor air sensor detects that the indoor air is in good condition, it Controls to display information guiding the current state to be maintained on the display unit of the panel. Maintaining the status quo means that the energy recovery ventilator may be kept running or stopped.

When the outdoor air sensor detects that the state of the outdoor air is good, the first and second sensors 43 and 44 detect that the window is closed, and the indoor air sensor detects that the indoor air is in bad condition, the operation Information that guides the window to be opened is displayed on the display of the panel, and the energy recovery ventilator is automatically turned on if the information displayed by the user (information to open the window) is not executed within a predetermined time period. Control. In such a state, the energy recovery ventilator must be operated to exhaust bad indoor air to the outside.

When the outdoor air sensor detects that the state of the outdoor air is good, the first and second sensors 43 and 44 detect that the window is closed, and the indoor air sensor detects that the indoor air is in bad condition, the operation The panel displays information guiding the window to open, and automatically turns off the energy recovery ventilator when the window is opened by executing the information displayed by the user (information to open the window) within a predetermined period of time. Control to make it. That is, since there is no effect due to operating the energy recovery ventilator when the window is open, the energy recovery ventilator is automatically turned off to avoid unnecessary power consumption, which is effective in terms of energy saving.

When the outdoor air sensor detects that the outdoor air is in a bad condition, and the first and second sensors 43 and 44 sense that the window is open, information guiding the window to close is displayed on the display of the operation panel. Controls to automatically turn on the energy recovery ventilator while displaying the display. Of course, in such a case, when the information to close the window is displayed but the window is not closed and the open state continues, the energy recovery ventilator is turned off without operating.

When the outdoor air sensor detects that the outdoor air is in a bad condition, and the first and second sensors 43 and 44 detect that the window is closed, the operation of the energy recovery ventilator is guided to the display of the operation panel. It controls to automatically turn on the energy recovery ventilator while displaying the information.

When the window is open as described above, even if the energy recovery ventilator is operated, it is not effective, so the operation should be stopped. Moreover, if the outdoor air is bad, the window should be closed quickly. Even if the window is closed, the window should be closed if the outdoor air is good. Opening and natural ventilation can contribute to energy saving by preventing unnecessary power consumption due to the operation of the energy recovery ventilator.In this way, an information message is displayed on the display and notified visually or aurally to ventilate energy recovery. It is possible to activate the use of the system, and it can also greatly contribute to energy saving by operating the energy recovery ventilator only if it is suitable for operation rather than running it all day.

The above description is an illustrative description of the present invention, and the embodiments published in the specification are not intended to limit the technical idea of the present invention, but to describe the present invention. Various modifications and variations will be possible without departing from the technical idea of Therefore, the scope of protection of the present invention is interpreted by the matters described in the claims, and technical matters within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: indoor 11: exhaust port
12: air supply port 13: exhaust duct
14: air supply duct
20: energy recovery ventilation device 21: outdoor exhaust port
22: outdoor supply port 23: indoor exhaust port
24: indoor air supply 25: heat exchange unit
26: exhaust fan 27: air supply fan
28: power and control unit
30: operation panel 31: power button
32: mode selection button 33: display
40: window device 41: window frame frame
42: window frame 43: first sensor
44: second sensor

Claims (9)

The outdoor exhaust and air supply ports are installed on the outdoor side, and the indoor air supply and exhaust ports are respectively installed on the indoor side, and the indoor and outdoor air is exchanged through an energy recovery ventilator installed on the duct for supply and exhaust. In the energy recovery ventilation system designed to ventilate,
The energy recovery ventilation system,
First and second sensors respectively attached to the window frame and the window frame to detect whether the window is opened or closed;
An operation panel installed indoors for displaying information related to the operation of the ventilation system and the ventilation system;
An energy recovery ventilator electrically connected to the operation panel and heat-exchanging heat exhausted from the indoor side with the air supplied to the indoor side while forming an air flow path to the indoor side or the outdoor side when performing ventilation;
Indoor air detection sensor and outdoor air detection sensor installed to sense the state of indoor and outdoor air;
It is configured to include, and is configured with a control algorithm that controls the operation of the energy recovery ventilator according to the information on the opening and closing state of the window,
The control algorithm,
When it is sensed that the outdoor air is in good condition and the window is open, the energy recovery ventilator is automatically turned off while displaying information informing that the operation of the energy recovery ventilator is to be stopped on the display of the operation panel,
When the outdoor air condition is sensed as being bad and the window is open, the energy recovery ventilator is automatically turned on while displaying information guiding the window to close on the display of the operation panel. Energy recovery ventilation system that performs the control function based on the information about
The method of claim 1, wherein the operation panel,
A power button to set power on/off;
A mode selection button for setting an automatic operation or a manual operation of the energy recovery ventilation device;
A display unit for displaying information related to the operation of the energy recovery ventilator and a current operating state of the energy recovery ventilator according to window opening and closing information;
An energy recovery ventilation system configured to have a control function based on information on a window opening/closing state, characterized in that it enables to control whether the energy recovery ventilator is operated or not and an operation mode.
The method of claim 1,
The indoor air sensor is installed at the indoor exhaust port of the exhaust duct, and the outdoor air sensor is installed at the outdoor air supply of the energy recovery ventilator or on the outer wall of the building. Energy recovery ventilation system that performs the control function.
delete The method of claim 1, wherein the control algorithm,
When the outdoor air condition is sensed as being good, the window is closed, and the indoor air condition is good, information on the window opening/closing condition is displayed on the display unit of the operation panel. Energy recovery ventilation system that performs the control function according to.
The method of claim 1, wherein the control algorithm,
When the outdoor air condition is sensed as being good and the window is closed and the indoor air condition is bad, information instructing to open the window is displayed on the display of the operation panel, and when the displayed information is not executed within a certain period of time. An energy recovery ventilation system that performs a control function based on information on a window open/close state, characterized in that the energy recovery ventilation device is automatically turned on.
The method of claim 1, wherein the control algorithm,
When the outdoor air condition is sensed as being good and the window is closed and the indoor air condition is bad, information that guides the opening of the window is displayed on the display of the operation panel. When executing the displayed information within a certain period of time, energy An energy recovery ventilation system that performs a control function based on information on a window open/close state, characterized in that the recovery ventilation device is automatically turned off.
delete The method of claim 1, wherein the control algorithm,
When the outdoor air condition is sensed as being bad and the window is closed, the energy recovery ventilator is automatically turned on while displaying information guiding the operation of the energy recovery ventilator on the display of the operation panel. An energy recovery ventilation system that performs a control function based on information on the open/close state.

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