KR100728339B1 - Energy recovery ventilation - Google Patents

Abstract

A waste heat recovery type ventilation system is provided to display data detected by sensors and input by a user via first and second display parts for precise recognition of operation states of the system, thereby helping the user to control the system as desired. A waste heat recovery type ventilation system comprises a sensor part having temperature sensors, harmful gas sensors, filter pollution sensor, and a timer for measuring on/off time of the system, and a controller for setting operation conditions or operation environment of the system. The controller has first and second display parts(510,520) and an input part(530) having various buttons(531-536) for power-on/off, mode selection, wind volume selection, reservation setting and filter change. The first display part has windows(511-515) for displaying temperature, temperature efficiency, room pollution degree, filter pollution degree and fan operation state. The second display part has windows(521-524) for displaying power on/off state, operation mode, ventilation mode, wind volume, and reservation state.

Description

Waste heat recovery ventilation

1 is a schematic view showing a conventional waste heat recovery ventilator.

Figure 2 is a schematic diagram showing a waste heat recovery ventilator according to the present invention.

Figure 3 is a block diagram showing a controller of the waste heat recovery ventilator according to the present invention.

Figure 4 is a block diagram showing a control unit of the waste heat recovery ventilator according to the present invention.

-Explanation of symbols for the main parts of the drawings-

10: duct 20: vertical bulkhead

30: horizontal bulkhead 100: air supply duct

110: air supply inlet 130: air supply outlet

150: air supply fan 200: exhaust duct

210: exhaust inlet 230: exhaust outlet

250: exhaust fan 300: heat exchanger

370: air supply passage 390: exhaust passage

400: sensor unit 410: outside temperature sensor

420: air supply temperature sensor 430: ventilation temperature sensor

440: exhaust temperature sensor 450: gas sensor

460: filter contamination detection sensor 470: timer

500: controller 510: first display unit

511: temperature display window 512: heat exchange efficiency display window

513: indoor pollution degree display window 514: filter pollution degree display window

515: fan operation display window 520: second display unit

521: on / off display window 522: operation mode display window

523: Airflow intensity display window 524: Reservation status display window

530: input unit 531: power selection button

532: operation mode selection button 533: ventilation mode selection button

534: Air flow selection button 535: Reserve setting button

536: filter replacement button 540: wireless transmitter

550: wireless receiver

The present invention relates to a waste heat recovery ventilator, and more particularly, to a controller including a first display unit and a second display unit and a plurality of sensors, wherein the information detected from each sensor and the user input information are displayed in the first display unit and the first display unit. By displaying on the display part, the user can grasp the operation environment of the waste heat recovery ventilator precisely and it is easy to control the operation in the desired direction, and the waste heat recovery that can control the operation even at a long distance by making the input part detachable from the controller It relates to a ventilation device.

In general, air in an enclosed space increases the carbon dioxide content as time passes by the breathing of the living organisms, which interferes with the breathing of the living creatures. Therefore, when many people, such as an office or a vehicle, stay in a confined space, the indoor polluted air should be replaced with fresh air from time to time.

At this time, a commonly used ventilation device. Most known ventilation apparatuses adopt a method of forcibly discharging only indoor air to the outside using a single blower.

However, when forced to discharge only indoor air by using one blower, the indoor air is discharged to the outside without filtration and the outdoor air is introduced without heat exchange through the door or window gap, thereby heating and cooling the room. The expense required to do so was unnecessarily high.

In addition, due to the sudden inflow of cold air and heat from inside to outside people suddenly change the temperature of the interior people there is unpleasant feelings, especially in the state that the indoor window or door frame closed to discharge only the indoor air to the outside In this case, the inflow of fresh air is blocked and oxygen deficiency may occur, and the humidity of the indoor air is not controlled at all, and there is a problem in that a pleasant indoor environment is not maintained even though a ventilation device is provided. .

In order to solve such a conventional problem, a waste heat recovery ventilator for exchanging outdoor air with indoor air discharged to the outside first and then supplying the indoor air has been proposed.

As illustrated in FIG. 1, the waste heat recovery ventilator includes an air supply duct 10 into which outdoor air flows into a room in a duct 1 having a box shape, and the air supply duct 10 and a predetermined air supply duct 10. An exhaust duct 20 is provided which intersects at the position and guides indoor air to the outside.

A heat exchanger 30 is provided to exchange heat between the outdoor air that is supplied at the point where the air supply duct 10 and the exhaust duct 20 intersect and the indoor air that is exhausted.

At this time, the air supply duct 10 and the exhaust duct 20 are not interfered with each other by the horizontal partition 2 partitioning the inside of the duct 1 vertically and the vertical partition 3 partitioning left and right.

An air supply suction opening 11 is formed at one end of the air supply duct 10 to communicate with the outside, and an air supply outlet 13 is formed at the other end of the air supply duct 10 to communicate with the room at one end of the exhaust duct 20. An exhaust inlet 21 is formed, and at the other end, an exhaust outlet 23 communicating with the outdoors is formed.

An air supply fan 15 is provided at the air supply inlet 11 of the air supply duct 10 to forcibly suck outdoor air to discharge the heat-exchanged air into the room, and the air exhaust port 23 side of the air exhaust duct 20 is provided. The exhaust fan 25 for forcibly discharging the indoor air is provided.

On the other hand, the heat exchanger 30 has a hexahedral shape whose upper and lower sides and left and right edges are supported by the partition walls 2 and 3, and a plurality of air supply passages 37 and the air supply passages 37 communicating with the air supply duct 10 therein. A plurality of exhaust passages 39 adjacent to and in communication with the exhaust duct 20 are provided.

Although not separately shown in the drawing, a heat exchange plate having excellent heat conduction efficiency is provided at the boundary between the air supply passage 37 and the exhaust passage 39.

At this time, the portion shown by the dotted line is the air supply passage 37, and the portion shown by the solid line is the exhaust passage 39.

Referring to the operation of the waste heat recovery ventilator having such a configuration as follows.

First, when indoor air is contaminated to some extent, power is supplied to the exhaust fan 25 so that indoor air flows into the exhaust duct 20 through the exhaust inlet 21, and then the exhaust passage 39 of the heat exchanger 30. ) Is discharged to the outside through the exhaust outlet (23).

At the same time, while supplying power to the air supply fan 15, fresh outdoor air flows into the air supply duct 10 through the air supply inlet 11, and then passes through the air supply passage 37 of the heat exchanger 30. 13) is introduced into the room.

At this time, the indoor air and the outdoor air passing through the heat exchanger 30 will exchange heat through the heat exchange plate. Specifically, the heat exchange occurring in the heat exchanger 30 includes sensible heat exchange between the supplied outdoor air and the exhausted indoor air, and high temperature air in the indoor or outdoor air is below the dew point temp. It is made of latent heat exchange by the condensate produced in the state of.

In the case of the heat exchange type ventilation device, the outdoor air supplied when the room is cooled or heated is primarily heat-exchanged with the indoor air and then introduced into the room, thereby preventing a rapid rise or fall of the room temperature.

The waste heat recovery ventilator as described above is typically controlled by a controller that is connected to the waste heat recovery ventilator in a wired manner indoors, wherein the controller displays an operating condition of the waste heat recovery ventilator and a user selects a driving condition. It is composed of an input unit for input.

However, the controller of the conventional waste heat recovery ventilator was inconvenient that the user must move directly to the place where the controller is installed in order to check the operating environment or set the operating conditions.

In addition, the display unit for displaying the operating environment and conditions of the waste heat recovery ventilator is simply configured to display only the indoor temperature, operation mode, reservation time, etc., so that the user may understand the operation state and environment of the waste heat recovery ventilator somewhat. There was a difficult problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and includes a controller having a first display unit and a second display unit and a plurality of sensors to detect information detected from each sensor and user input information. The purpose of the present invention is to provide a waste heat recovery ventilator that enables the user to accurately grasp the operating environment of the waste heat recovery ventilator and easily control the operation in a desired direction.

In another aspect, the present invention provides a waste heat recovery ventilator for the input unit is provided with a wireless transmitter, the controller is provided with a wireless receiver, the input unit is detachable from the controller to be controlled from a distance. There is a purpose.

The present invention is divided into an air supply duct for introducing outdoor air into the room by an air supply fan and an exhaust duct intersecting the air supply duct, and the air duct flowing out to the outdoor air by the exhaust fan, and the air supply duct and the exhaust duct intersect. A plurality of air supply passages provided at a point to communicate with the air supply duct and a plurality of air exhaust passages communicating with the exhaust duct are adjacent to each other, and include a heat exchanger configured to heat exchange the air in the air supply passage and the air passages with each other. In the waste heat recovery ventilator, a temperature sensor which is mounted at the air inlet, the air outlet, the air inlet, and the air outlet, respectively, detects the temperature of the air supply, the ventilation, the exhaust, and the outside air, and a gas sensor that detects the amount of harmful gas in the room. And filter pollution detection sensor that detects filter contamination by measuring the transparency of the filter and when the heat recovery ventilator is turned on / off A sensor unit having a timer for measuring liver; And a controller installed indoors to set operating conditions of the waste heat recovery ventilator and input a driving environment.

Preferably, the controller comprises: a first display unit having a temperature display window, a temperature efficiency display window, an indoor pollution degree display window, a filter pollution degree display window, and a fan operation state display window; A second display unit having an operation on / off display window, an operation mode display window, a ventilation mode display window, a wind volume intensity display window, and a reservation status display window; And an input unit for setting a power selection button, an operation mode selection button, a ventilation mode selection button, a flow rate selection button, a reservation setting button, and a filter replacement button.

More preferably, the operation of the air supply fan and the exhaust fan is controlled according to the signals output from the buttons of the input unit, and the operating environment is provided to the first display unit and the second display unit according to the information detected from the input unit and the sensor unit. It further comprises a control unit for displaying.

The temperature display window of the first display unit may display all the temperatures of the air supply, ventilation, exhaust, and outside air detected through the temperature sensor of the sensor unit.

In addition, the heat exchange efficiency display window of the first display unit is characterized in that it displays the percentage (air supply temperature / temperature difference between the outside air and ventilation) based on the temperature information detected through the temperature sensor of the sensor unit.

In addition, the filter contamination level display window of the first display unit displays three states of contamination, normal, and clean based on the information detected from the filter contamination sensor and the operation time of the waste heat recovery ventilator detected from the timer. .

In addition, the operation mode display window of the second display unit is characterized by displaying the manual, automatic operation status.

In addition, the ventilation mode display window of the second display unit displays a waste heat recovery ventilation mode in which the outdoor air and the indoor air are exchanged after heat exchange through the heat exchanger, and a general ventilation mode in which the outdoor air and the indoor air are ventilated without passing through the heat exchanger. It features.

The input unit may include a wireless transmitter, the controller includes a wireless receiver, and the input unit may be detachable from the controller.

Therefore, since accurate information about the driving environment can be obtained based on the information detected from each sensor through the controller, the user can easily control the operation of the waste heat recovery ventilator in a desired direction.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the waste heat recovery ventilator according to the present invention.

2 is a block diagram showing a waste heat recovery ventilator according to the present invention, the air supply duct 100 is provided in the box-shaped duct 10, the outdoor air is introduced into the room, the air supply duct Exhaust duct 200 that intersects with 100 at a predetermined position and is guided to indoor air is provided.

In addition, a heat exchanger 300 is provided to exchange heat between the outdoor air that is supplied at the point where the air supply duct 100 and the exhaust duct 200 intersect with the indoor air that is exhausted.

At this time, the air supply duct 100 and the exhaust duct 200 are not interfered with each other by the horizontal partition wall 20 partitioning the inside of the duct 10 up and down and the vertical partition wall 30 partitioning left and right.

An air supply suction port 110 is formed at one end of the air supply duct 100 to communicate with the outside, and an air supply outlet 130 is formed at the other end to communicate with the interior, and communicates with the room at one end of the exhaust duct 200. An exhaust suction opening 210 is formed, and an exhaust exhaust outlet 230 communicating with the outdoors is formed at the other end.

An air supply fan 150 is provided at the air supply inlet 110 of the air supply duct 100 to forcibly suck outdoor air to discharge the heat-exchanged air into the room, and the air exhaust port 230 of the air exhaust duct 200 is provided. The exhaust fan 250 for forcibly discharging the indoor air is provided.

On the other hand, the heat exchanger 300 has a hexahedral shape in which the upper and lower and left and right edges are supported by the partition walls 20 and 30, the plurality of air supply passages 370 and the air supply passages 370 communicating with the air supply duct 100 therein. A plurality of exhaust passages 390 are provided adjacent to and in communication with the exhaust duct 200.

Although not separately shown in the drawings, a heat exchange plate having excellent heat conduction efficiency is provided at a boundary between the air supply passage 370 and the exhaust passage 390.

At this time, the portion shown by the dotted line is the air supply passage 370, and the portion shown by the solid line is the exhaust passage 390.

The waste heat recovery ventilator according to the present invention includes a sensor unit including a plurality of sensors, and at one side of the air supply suction port 110, an outdoor air temperature sensor 410 for detecting a temperature of outside air introduced into the air supply duct 100 outdoors. ) Is mounted, and an air supply temperature sensor 420 is installed at one side of the air supply outlet 130 to detect the temperature of the air supply flowing into the air supply duct 100 and passing through the heat exchanger 300.

One side of the exhaust suction port 210 is equipped with a ventilation temperature sensor 430 for sensing the temperature of the ventilation flowing into the exhaust duct 200 from the room, and one side of the exhaust outlet 230 is the exhaust duct 200 Exhaust temperature sensor 440 is installed to detect the temperature of the exhaust gas flowing through the heat exchanger 300.

In addition, a gas sensor 450 for detecting an amount of harmful gas such as carbon dioxide in the exhaust discharged from the indoor to the outdoor is mounted at one side of the exhaust outlet 230, and although not shown, a filter for purifying the air flowing into the indoor The filter pollution sensor 460 for measuring the transparency of the filter to detect the degree of contamination of the filter is provided.

In addition, a timer 470 is installed to measure the operation time of the air supply fan 150 and the exhaust fan 250, that is, the operation on / off time of the waste heat recovery ventilator.

In the room, a controller 500 is installed to allow a user to input settings for the waste heat recovery ventilator or display an operation environment such as a temperature and an operation mode, which will be described with reference to FIGS. 3 and 4. do.

3 is a block diagram schematically showing the controller 500 of the waste heat recovery ventilator according to the present invention. As shown, waste heat is connected to a waste heat recovery ventilator embedded in a ceiling of a house or installed in a window. The controller 500 which displays the operating environment of the recovery ventilation apparatus and enables the user to set the operating conditions includes a first display unit 510, a second display unit 520, and an input unit 530.

4 is a block diagram showing a control unit of the waste heat recovery ventilator according to the present invention, the waste heat recovery ventilator according to the present invention according to the information detected from the sensor unit 400 and the first display unit 510 and the second The display unit 520 may further include a control unit 600 for displaying an operation environment and a state and controlling the operation of the air supply fan 150 and the exhaust fan 250 according to the information input from the input unit 530.

The first display unit 510 includes a temperature display window 511, a heat exchange efficiency display window 512, an indoor pollution degree display window 513, a filter pollution degree display window 514, and a fan operation state display window 515.

The temperature display window 511 is an outdoor air, air supply, and the like detected through the outside air temperature sensor 410, the air supply temperature sensor 420, the ventilation temperature sensor 430, and the exhaust temperature sensor 440 of the sensor unit 400. The temperature of the ventilation and the exhaust is displayed.

The heat exchange efficiency display window 512 is calculated by the controller 600 based on the temperature information detected by the temperature sensors 410, 420, 430, and 440 of the sensor unit 400, and the calculated value is ( Supply air temperature / temperature difference between outside air and ventilation) is displayed as a percentage.

Therefore, the user can directly check the heat exchange efficiency of the current waste heat recovery ventilator by looking at the heat exchange efficiency display window 512, and thus can change the ventilation mode and the like.

The indoor pollution degree display window 513 displays the harmful gas content, such as carbon dioxide, detected from the gas sensor 450 of the sensor unit 400 to allow the user to adjust the ventilation air volume.

The filter contamination degree display window 514 contaminates the degree of contamination of the filter based on the degree of contamination of the filter detected from the filter contamination detection sensor 460 of the sensor unit 4000 and the use time of the filter measured by the timer 470. Three statuses are shown: Status / Normal / Clean, allowing the user to easily know when to clean and replace the filter.

At this time, the filter contamination detection sensor 460 is composed of a sensor for irradiating light from one side of the filter, the other side to measure the brightness of the light, by measuring the transparency of the filter, to measure the degree of contamination of the filter do.

The fan operation state display window 515 is difficult to check whether the operation of the air supply fan 150 and the exhaust fan 250 mounted on the ceiling, etc., so that the operation of the fan (150, 250) Will be displayed.

The second display unit 520 includes an on / off display window 521, an operation mode display window 522, an air volume intensity display window 523, and a reservation status display window 524.

The on / off display window 521 displays whether the air supply fan 150 and the exhaust fan 250 operate to operate the waste heat recovery ventilator, and the operation mode display window 522 displays the automatic operation mode and the manual operation. It serves to display the mode.

The airflow intensity display window 523 displays the airflow in three forms of upper, middle, and lower sides according to the airflow selection of the input unit 530, which will be described later.

The reservation status display window 524 counts the reservation time set through the input unit 530.

The input unit 530 includes a power button 531, an operation mode selection button 532, a ventilation mode selection button 533, an air volume selection button 534, a reservation setting button 535, and a filter change button 536. Is done.

The power button 531 applies power to the air supply fan 150 and the exhaust fan 250 to operate the waste heat recovery ventilator or to cut off the power applied to the air supply fan 150 and the exhaust fan 250 in operation. Outputs a signal to stop the waste heat recovery ventilator.

The operation mode selection button 532 outputs a signal to operate the waste heat recovery ventilator manually or automatically.

The ventilation mode selection button 533 may be operated in a waste heat recovery ventilation mode in which the outdoor air and the indoor air are heat-exchanged after the heat exchanger 300, or the outdoor air and the indoor air are not passed through the heat exchanger 300. Outputs a signal to operate in normal ventilation mode to allow ventilation without

The air volume selection button 534 outputs a signal to rotate the air supply fan 150 and the exhaust fan 250 by dividing the rotation speed into upper, middle, and lower positions.

The reservation setting button 535 sets a time and outputs a signal for operating the air supply fan 150 and the exhaust fan 250 after the setting time.

The filter change button 536 outputs a signal for resetting the timer 470 when the filter is replaced according to the filter contamination.

The control unit 600 controls the operation of the waste heat recovery ventilator by controlling the operation of the air supply fan 150 and the exhaust fan 250 according to the signal output from each button of the input unit 530, the input unit 530 And a signal is output to the first display unit 510 and the second display unit 520 according to the information from the sensor unit 400 to display the driving environment.

The first display unit 510 and the second display unit 520 display temperature, heat exchange efficiency, indoor pollution degree, filter contamination degree, and fan operation on the first display unit 510 according to the signal output from the controller 600. The second display unit 520 displays the operation on / off state, the operation mode, the air volume intensity, and the reservation state.

On the other hand, the input unit 530 is manufactured to be detachable from the controller 500, the input unit 530 is provided with a wireless transmitter 540 to be used as a general remote control, on one side of the controller 500 The wireless receiver 550 is provided to receive a signal from the input unit 530.

Therefore, since the waste heat recovery ventilator according to the present invention can obtain accurate information on the operating environment based on the information detected from each sensor through the controller 500, the waste heat recovery ventilator operates in the direction desired by the user. Can be easily controlled.

As described above, the waste heat recovery ventilator includes a controller having a first display unit and a second display unit, and a plurality of sensors to display information detected from each sensor and input information of a user. By displaying on the display unit, the user can accurately grasp the operating environment of the waste heat recovery ventilator, and it is easy to control the driving in a desired direction.

In addition, the input unit is made to be detachable from the controller has the advantage of controlling the operation from a long distance.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It will be possible to carry out the change.

Claims (9)

At the point where the air supply duct is divided into an air supply duct that introduces outdoor air into the room by the air supply fan and the air exhaust duct that crosses the air supply duct, and the air is discharged to the outside by the air exhaust fan, and the air supply duct and the exhaust duct intersect. And a plurality of supply passages communicating with the air supply duct and a plurality of exhaust passages communicating with the exhaust duct are adjacent to each other, and a heat recovery ventilator including a heat exchanger for exchanging heat in the air supply passage and the air in the exhaust passage. In the apparatus, It is equipped with air inlet, air inlet, exhaust inlet and exhaust outlet, respectively, temperature sensor for detecting the temperature of air supply, ventilation, exhaust, and outside air, gas sensor for detecting the amount of harmful gas in the room, and filter transparency. A sensor unit including a filter contamination detection sensor for detecting a filter pollution degree and a timer for measuring an operation time of the waste heat recovery ventilator; And A controller installed indoors to set operating conditions of the waste heat recovery ventilator and display an operating environment, wherein the controller is configured to display a mode of the first heat dissipation ventilator and a first display unit displaying a state of the waste heat recovery ventilator; Waste heat recovery ventilator characterized in that it comprises a second display unit for displaying and an input unit for setting at least one or more buttons. The method of claim 1, The controller, A first display unit including at least one of a temperature display window, a temperature efficiency display window, an indoor pollution degree display window, a filter pollution degree display window, and a fan operation state display window; A second display unit including at least one of an operation on / off display window, an operation mode display window, a ventilation mode display window, a wind volume intensity display window, and a reservation status display window; And Waste heat recovery ventilator characterized in that it comprises an input unit for setting a button including at least one of the power selection button, operation mode selection button, ventilation mode selection button, air flow selection button, reservation setting button, filter replacement button . The method of claim 2, The controller controls the operation of the air supply fan and the exhaust fan according to signals output from each button of the input unit, and displays an operating environment on the first display unit and the second display unit according to information detected from the input unit and the sensor unit. Waste heat recovery ventilator characterized in that it further comprises a control unit. The method of claim 2, The temperature display window of the first display unit displays the temperature of the air supply, ventilation, exhaust, and outside air detected through the temperature sensor of the sensor unit, waste heat recovery ventilator. The method of claim 2, The heat exchange efficiency display window of the first display unit displays the heat exchange efficiency display unit as a percentage on the basis of the temperature information detected by the temperature sensor of the sensor unit as a percentage. The method of claim 2, The filter pollution degree display window of the first display unit displays three states of pollution, normal, and clean based on the information detected from the filter contamination sensor and the operating time of the waste heat recovery ventilator detected from the timer. Ventilation. The method of claim 2, The operation mode display window of the second display unit, the waste heat recovery ventilator characterized in that it displays the manual, automatic operation status. The method of claim 2, The ventilation mode display window of the second display unit displays a waste heat recovery ventilation mode in which the outdoor air and the indoor air are exchanged through heat exchanger, and a general ventilation mode in which the outdoor air and the indoor air are ventilated without passing through the heat exchanger. Waste heat recovery ventilator. The method of claim 2, The input unit is provided with a wireless transmitter, the controller is provided with a wireless receiver, the input unit is a waste heat recovery ventilator, characterized in that detachable from the controller.

Images