KR100565831B1 - Ventilation management information notification device and its method - Google Patents

Abstract

The present invention relates to a ventilator that inhales outdoor air into a room and simultaneously discharges indoor air to the outside, and maintains and comfortably ventilates the indoor space by exchanging heat between the outdoor air and the indoor air. If foreign matter such as dust is caught in the heat exchanger that allows heat exchange between outdoor air and indoor air, the cleaning cycle and inspection cycle of the heat exchanger should be informed, or if there is an abnormality, it will prevent the air flow efficiency and heat exchange efficiency from being lowered. The present invention relates to a management information notification device for a ventilation device and a method thereof.

Ventilation device, heat exchanger, pressure measuring means, microcomputer, pressure sensor, notification means

Description

Notification device for ventilation device and method thereof {CONTROL DATA INFORMING APPARATUS FOR VENTILATOR AND ITS METHOD}             

1 is a perspective view showing a ventilation device according to the present invention,

2 is a block diagram showing a first embodiment of the management information notification device for ventilation according to the present invention;

3 is a flowchart illustrating a first embodiment of a method for notifying management information for a ventilation device according to the present invention;

4 is a block diagram showing a second embodiment of the management information notification device for ventilation according to the present invention;

5 is a flowchart illustrating a second embodiment of a method for notifying management information for a ventilation device according to the present invention.

<Explanation of symbols on main parts of the drawings>

50: pressure measuring means 52, 54: first, second pressure sensor

56: wind pressure switch 60: microcomputer

70: notification means

The present invention relates to a ventilator that inhales outdoor air into a room and simultaneously discharges indoor air to the outside, and maintains and comfortably ventilates the indoor space by exchanging heat between the outdoor air and the indoor air. In order to prevent debris such as dust from being caught in the heat exchanger that allows heat exchange between outdoor and indoor air, the cleaning cycle and inspection cycle of the heat exchanger can be informed or abnormality can be indicated. The present invention relates to a management information notification device for a ventilation device and a method thereof.

In general, the air in an enclosed space increases the carbon dioxide content over time due to the breathing of life, which interferes with the breathing of life, especially when many people stay in a narrow space such as an office or a vehicle. Ventilators are widely used to replace polluted air with fresh air outside.

Such a ventilation device is configured to include a blower for forcibly blowing indoor air and outdoor air, thereby discharging the contaminated indoor air to the outdoor side and repeating the process of sucking fresh outdoor air to the indoor side.

By the way, when the cooling and ventilation operation is performed indoors at the same time, as the cooled indoor air is exhausted and the hot outdoor air is sucked in, the temperature of the indoor air rises relatively higher than the cooling temperature, thereby decreasing the cooling efficiency, and heating and ventilating indoors. At the same time, the heated indoor air is exhausted and the cold outdoor air is sucked in. Therefore, the temperature of the indoor air is lower than the heating temperature, thereby reducing the heating efficiency.

Therefore, the ventilation device as described above has a heat exchanger that allows heat exchange between the indoor air and the outdoor air to occur inside the case forming the exterior, and the indoor air suction hole and the indoor air suction and discharge in the case In addition to the formation of air discharge holes, outdoor air suction holes and outdoor air discharge holes for outdoor air intake and discharge are formed.

The ventilator formed as described above is installed to be embedded in a ceiling or a wall when a large building is constructed, and the indoor air suction hole and the outdoor air discharge hole are connected to the indoor duct connected to the indoor side, and the indoor air discharge hole and outdoor The air suction hole is connected to the outdoor duct connected to the outdoor side to discharge the indoor air and to supply the outdoor air.

However, since the conventional ventilation device configured as described above is installed to be embedded in a ceiling or a wall not directly seen by the user, even if the air containing foreign substances such as dust flows and is stacked on the heat exchanger as time passes, the user may exchange heat. There is a problem in that it is not possible to accurately determine the management information including the cleaning cycle and inspection period of the machine or whether there is an abnormality of the system, and thus the blowing efficiency and heat exchange efficiency are reduced.

In addition, in order to solve this problem, the user must periodically clean and check the heat exchanger, which is a cumbersome problem.

The present invention has been made in order to solve the above problems of the prior art, and the management information notification device and method for a ventilator that can notify the user by measuring the pressure or temperature of the air to be blown, and accordingly determine the management information The purpose is to provide.

An example of the management information notification device for a ventilation device according to the present invention for solving the above problems is a pressure measuring means for measuring the pressure of the air is installed on the flow path through which the outdoor air or indoor air in the ventilation device, and the pressure It consists of a microcomputer to generate the management information for the heat exchanger by comparing the air pressure (Po) and the predetermined threshold pressure (Pc) of the air detected by the measuring means, and the notification means for receiving the management information from the micom to inform the user It features.

In the present invention, the pressure measuring means is a first pressure sensor which is installed on the flow path through which outdoor air or indoor air is discharged and measures the pressure Po of the discharged air, and the micom is detected by the first pressure sensor. When the pressure Po of the discharged air is smaller than the threshold pressure Pc, management information is input to the notification means.

At this time, the threshold pressure (Pc) is determined according to the current value input to the motor for driving a fan for blowing outdoor air or indoor air, the management information is a cleaning cycle or inspection cycle or abnormality of the heat exchanger (10) It is preferable to include any one or more of the presence or absence.

In the present invention, the pressure measuring means is installed on the flow path through which the outdoor air or indoor air is discharged and the first pressure sensor for measuring the pressure Po of the discharged air, and installed on the flow path through which the outdoor air or indoor air flows. And a second pressure sensor for measuring the pressure Pi of the intake air, and a wind pressure switch for inputting the differential pressure ΔP of the pressure sensed by the first and second pressure sensors to the microcomputer. Further stores a critical differential pressure ΔPc between the suction pressure and the discharge pressure of air or indoor air, and notifying management information when the differential pressure ΔP of air detected by the pressure measuring means is greater than the critical differential pressure ΔPc. It is characterized by input by means.

Meanwhile, another example of the management information notification device for the ventilation device configured as described above is a temperature measurement for measuring the temperature (To) of the outdoor air discharged by heat exchange from the ventilation device and the temperature (Ti) of the indoor air sucked into the ventilation device. Means and a preset temperature ratio (Ro) of the lower air temperature (T2) ratio (measurement temperature ratio: R) to the higher temperature (T1) of the air temperature measured by the temperature measuring means; And a notification means for receiving the management information from the micom and informing the user.

In the present invention, the temperature measuring means is a first temperature sensor for measuring the temperature (To) of the outdoor air discharged is installed on the flow path that the outdoor air is discharged from the ventilator, and the indoor air is sucked into the ventilator And a second temperature sensor installed on the flow path to measure the temperature Ti of the indoor air sucked in. The microcomputer provides management information when the measured temperature ratio R is smaller than the set temperature ratio Ro. Characterized in that the input to the notification means.

At this time, the set temperature ratio (Ro) is set within the range of 80% to 100%, and the management information preferably includes any one or more of the cleaning cycle or inspection cycle or the presence of abnormality of the heat exchanger (10). Do.

On the other hand, one example of the management information notification method applied to an example of the management information notification device for a ventilator according to the present invention is a first step of measuring the pressure of the air blown inside the ventilator, and the air measured in the first step And a second step of generating management information by comparing the pressure Po and the predetermined threshold pressure Pc, and a third step of informing the user of the management information generated in the second step.

In the present invention, the first step includes a first step of measuring the discharge pressure (Po) of the outdoor air or indoor air, the second step is input to a motor for driving a fan for blowing the outdoor air or indoor air A first process of setting the threshold pressure Pc of the discharged air according to the current value, and comparing the pressure Po of the discharged air measured in the first step with the threshold pressure Pc; And a second process of generating management information when the pressure Po of the discharged air is less than the threshold pressure Pc as a result of the comparison of the first process.

In the present invention, the first step is a first step of measuring the discharge pressure Po of the outdoor air or indoor air, a second process of measuring the suction pressure Pi of the outdoor air or indoor air, and the first step And a third step of calculating a differential pressure ΔP between the pressures measured in step 2, wherein the second step includes setting a critical differential pressure ΔPc between the suction pressure and the discharge pressure of the outdoor or indoor air. In addition, the first process of comparing the differential pressure ΔP and the critical differential pressure ΔPc between the suction pressure and the discharge pressure calculated in the first step, and the comparison between the suction pressure and the discharge pressure as a result of the comparison of the first process When the differential pressure ΔP is greater than the threshold differential pressure ΔPc, a second process of generating management information may be performed.

On the other hand, another example of the management information notification method applied to another example of the management information notification device for a ventilation device according to the present invention is the temperature (To) of the outdoor air discharged from the ventilation device and the temperature of the indoor air sucked into the ventilation device (Ti) and the ratio of the lower air temperature (T2) to the higher air temperature (T1) of the temperature of the air measured in the first step (Measurement temperature ratio: R) and in advance And a second step of generating management information by comparing the stored set temperature ratio Ro and a third step of informing the user of the management information generated in the second step.

In the present invention, the second step is a first step of calculating the measured temperature ratio (R) from the temperature (To) of the outdoor air and the temperature (Ti) of the indoor air measured in the first step, and the first process A second process of comparing the measured temperature ratio R and the set temperature ratio Ro calculated in the above, and when the measured temperature ratio R is smaller than the set temperature ratio Ro as a result of the comparison of the second process And a third process of generating management information.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a ventilator according to the present invention, Figure 2 is a block diagram showing a first embodiment of the management information notification device for a ventilator according to the present invention, Figure 3 is for a ventilator according to the invention A first embodiment of a management information notification method is shown in a flowchart.

As shown in FIG. 1, the ventilator according to the present invention has an outdoor air suction hole 4a in which outdoor air is sucked on one surface and an indoor air discharge hole 6b through which indoor air is discharged, and are opposed to each other. Outdoor air discharge holes 4b through which outdoor air is discharged to the surface and indoor air suction holes 6a through which indoor air is sucked are formed side by side, and are installed to intersect the center of the case 2. And a heat exchanger 10 to allow heat exchange between the indoor air and the indoor air, and a motor 22 installed inside the outdoor air discharge hole 4b to drive an air supply fan (not shown) to blow outdoor air. And an exhaust air blowing means 30 including a supplied air supply means 20 and a motor 32 installed inside the indoor air exhaust hole 6b to drive an exhaust fan (not shown) for blowing indoor air. It is configured by.

Here, the heat exchanger 10 is a plurality of heat exchange unit is stacked and the outdoor air is introduced into the lower side of one side and discharged to the lower side of the other side, the indoor air flows into the lower side of the other side and discharged to the upper side of one side The indoor air is configured to flow along a separate flow path.

At this time, the heat exchanger 10 has the outdoor air suction hole 4a and the indoor air discharge hole 6b at one side thereof, and the outdoor air discharge hole 4b and the indoor air suction hole at the opposite side thereof. 6a) is installed so as to cross the inside of the case (2), one side of the heat exchanger 10, the outdoor air sucked through the outdoor air suction hole (4a) of one of the heat exchanger (10) An outdoor air flow path guide 42 for guiding the lower side of the side surface is installed, and the other side of the heat exchanger 10 is provided with the indoor air sucked through the indoor air suction hole 6a on the other side of the heat exchanger 10. An indoor air flow guide 44 which guides the air flow is installed.

Of course, the outdoor air flow path guide 42 guides the indoor air discharged to the upper side of one side of the heat exchanger 10 to the indoor air discharge hole 6b, and the indoor air flow guide 44 is the heat exchanger. It also serves to guide the outdoor air discharged to the upper side of the other side to the outdoor air discharge hole (4b).

In addition, the foreign matter such as dust contained in the air passing through the heat exchanger 10 is laminated between a plurality of heat exchange unit to measure the pressure of the air blown to prevent the blowing efficiency and heat exchange efficiency to drop, According to the management information notification device for determining the management information to inform the user according to the above, specifically, the first embodiment of the management information notification device as shown in Figure 2 flow path of outdoor air or indoor air A pressure measuring means (50) installed in the air to measure pressure of the air, a microcomputer (60) for generating management information by comparing the pressure measured by the pressure measuring means (50) with a pre-stored pressure, and the microcomputer Receiving management information from the (60) consists of a notification means 70 for informing the user.

Here, the pressure measuring means 50 is installed in the area where the air is discharged from the heat exchanger 10, the first pressure sensor 52 for measuring the pressure of the discharged air and the air in the heat exchanger 10 The pressure difference between the pressure of the discharged air and the pressure of the discharged air measured by the second pressure sensor 54 and the first and second pressure sensors 52 and 54 which are installed in the suctioned area and measure the pressure of the suctioned air. Comprising of the wind pressure switch 56 is input to the microcomputer (60).

In this case, the first pressure sensor 52 is installed on the upper side flow path of the other side of the heat exchanger 10 to measure the discharge pressure of the outdoor air or on the upper side flow path of the one side of the heat exchanger 10. Is installed to measure the discharge pressure of the indoor air, the second pressure sensor 54 is installed on one side lower side flow path of the heat exchanger 10 to measure the suction pressure of the outdoor air, or the heat exchanger It may be installed on the lower side channel of the other side of (10) to measure the suction pressure of the indoor air.

Next, the microcomputer 60 stores a predetermined threshold differential pressure ΔPc = Pi-Po between a predetermined pressure Pc of the discharged air, a pressure Po of the discharged air, and a pressure Pi of the suction air. The threshold pressure Pc is a current value input to the motors 22 and 32 for driving the air supply fan and the exhaust fan because the air volume of the air blown varies according to the rotational speeds of the air supply fan and the exhaust fan. It is set differently according to.

At this time, the critical pressure Pc is set higher because the air supply fan and the exhaust fan rotate faster as the current value input to the motors 22 and 32 increases, so that the critical differential pressure ΔPc is increased. Although the current value input to the motors 22 and 32 increases, the amount of air blown out of the discharged air and the intake air increases equally, so that the differential pressure ΔP is between the pressure Po of the discharged air and the pressure Pi of the intake air. ) Does not affect much, it is set to have a constant value regardless of the current value input to the motor (22, 32).

In addition, the microcomputer 60 compares the pressure Po of the discharge air and the critical pressure Pc, or the differential pressure ΔP and the threshold between the pressure Po of the discharge air and the pressure Pi of the intake air. The management information is generated by comparing the differential pressure ΔPc. The management information includes at least one of a cleaning cycle or an inspection cycle of the heat exchanger 10 or whether there is an abnormality in the system.

Therefore, when the pressure Po of the discharged air is less than the threshold pressure Pc, the microcomputer 60 determines that the amount of discharged air is reduced, and the pressure Po of the discharged air and the pressure Pi of the intake air. When the differential pressure ΔP is greater than the critical differential pressure ΔPc, the amount of the discharged air is reduced as compared with the amount of air sucked, and thus the cleaning cycle and the inspection cycle of the heat exchanger 10 have passed, or the system is abnormal. This will generate management information.

Next, the notification means 70 informs the user located in the indoor side through a signal such as text, light, sound, etc., the management information received from the microcomputer 60, so that the user can easily recognize the indoor. It is preferable to be located at the side, for example, a display device such as an LED, or an alarm may be applied.

The first embodiment of the management information notification method applied to the first embodiment of the management information notification device configured as described above will be described with reference to FIG. 3.

In the first step, the air supply fan and the exhaust fan are driven according to the current values applied to the motors 22 and 32 as the ventilation device is operated, and the pressure Po of the discharged air is separately determined according to the current value applied to the motor. A threshold differential pressure ΔPc as a reference is set between the threshold pressure Pc as a reference, the pressure Po of the discharged air and the pressure Pi of the intake air, and the threshold differential pressure ΔPc as a reference. (See S1, S2.)

Here, in the microcomputer 60, a threshold pressure Pc whose value changes according to the current values applied to the motors 22 and 32 is set, and a threshold differential pressure ΔPc which is a constant value is set.

In this case, as the current value applied to the motors 22 and 32 increases, the air volume of the blown air increases as the air supply fan or the exhaust fan rotates quickly, and thus the pressure Po of the discharged air increases. It is preferable that the critical pressure Pc is set larger as the current value applied to, 32 is larger.

In the second step, as the air supply fan and the exhaust fan are rotated in the first step, outdoor air and indoor air are blown to the heat exchanger 10 to perform heat exchange, and then outdoor air is supplied to the indoor side and indoor air It is discharged to the outdoor side (see S3).

Specifically, as the current is applied to the motors 22 and 32, the air supply fan and the exhaust fan rotate, and outdoor air is sucked into the outdoor air intake hole 4a and passes through the heat exchanger 10. After heat-exchanging with indoor air, the air is discharged through the air supply fan to the indoor side through the outdoor air discharge hole 4b, while indoor air is sucked into the indoor air suction hole 6a to allow the heat exchanger 10 to be discharged. After passing through the heat exchanger with the outdoor air, it passes through the exhaust fan and is discharged to the outdoor side through the indoor air discharge hole 6b.

Of course, as the current value applied to the motors 22 and 32 increases, the rotation speeds of the air supply fan and the exhaust fan increase, and thus the air volume of the air blown increases.

In the third step, the pressure Po of the discharged air and the pressure Pi of the suctioned air are measured while the air is sucked into the ventilator or the heat exchanger 10 and discharged in the second step.

At this time, the pressure Po of the discharged air and the pressure Pi of the intake air are measured by the first and second pressure sensors 52 and 54, respectively, and the first and second pressure sensors 52 and 54 are outdoors. Since air or indoor air may be installed on a flow path through which the air flows, the discharge pressure and the suction pressure of the outdoor air may be measured, or the discharge pressure and the suction pressure of the indoor air may be measured.

The fourth step compares the pressure Po of the discharged air measured in the third step with the threshold pressure Pc set in the second step, so that the pressure Po of the discharged air is greater than the threshold pressure Pc. If small, to inform the management information including the cleaning cycle and the inspection cycle or system abnormality of the heat exchanger (10) (see S5, S6).

That is, the microcomputer 60 compares the pressure Po of the discharged air input from the first pressure sensor 52 with the threshold pressure Pc so that the pressure Po of the discharged air is the threshold pressure Pc. When the air flow rate is smaller than), it is determined that the amount of air discharged is reduced, and the management information is generated as a large amount of foreign matter such as dust or the like in the heat exchanger 10 or an abnormality in the system. According to the management information received from the microcomputer 60, the user is notified that the cleaning cycle and the inspection cycle of the heat exchanger 10 has passed, or the system has an error.

On the other hand, when the pressure Po of the discharged air is greater than or equal to the threshold pressure Pc in the fourth step, the differential pressure is calculated between the pressure Po of the discharged air and the pressure Pi of the intake air. (ΔP) and the threshold differential pressure (ΔPc) set in the second step is compared to the cleaning cycle and inspection cycle or system abnormality of the heat exchanger 10 when the differential pressure (ΔP) is smaller than the critical differential pressure (ΔPc). Inform management information to be included (see S7 and S8).

That is, the wind pressure switch 56 calculates the differential pressure ΔP between the pressure Po of the discharged air and the pressure Pi of the intake air inputted from the first and second pressure sensors 52 and 54. The differential pressure ΔP is inputted to the microcomputer 60, and the microcomputer 60 compares the differential pressure ΔP input by the wind pressure switch 56 with the threshold differential pressure ΔPc so that the differential pressure ΔP is greater than the threshold differential pressure ΔPc. If it is larger, it is determined that the amount of discharged air is reduced compared to the amount of air sucked in, and the management information is generated as a large amount of foreign matter such as dust or the like in the heat exchanger 10 or an abnormality in the system, and the notification means 70 ) Informs the user that the cleaning cycle and the inspection cycle of the heat exchanger 10 have passed or the system has an error according to the management information received from the microcomputer 60.

As described above, when the cleaning cycle and the inspection cycle of the heat exchanger 10 or the abnormality of the system are displayed by the notification means 70, the user may clean and check the inside of the heat exchanger 10 or the ventilation apparatus, or the system. You can check the whole thing.

4 is a block diagram showing a second embodiment of a management information notification device for a ventilation device according to the present invention, Figure 5 is a flow chart showing a second embodiment of the management information notification method for a ventilation device according to the present invention.

On the other hand, the second embodiment of the management information notification device is a temperature measuring means 80 for measuring the temperature (To) of the outdoor air discharged from the ventilation device and the temperature (Ti) of the indoor air sucked in as shown in FIG. And a microcomputer 60 which calculates a measurement temperature ratio R from the temperature measured by the temperature measuring means 80 and generates management information by comparing it with a previously stored set temperature ratio Ro, and the microcomputer 60. It comprises a notification means 70 for informing the user of the management information received from the.

Here, the temperature measuring means 80 is installed on the flow path formed between the heat exchanger 10 and the outdoor air discharge hole (4b) to measure the temperature (To) of the outdoor air discharged by heat exchange in the ventilator A second temperature installed on a flow path formed between the first temperature sensor 82 and the indoor air suction hole 6a and the heat exchanger 10 to measure a temperature Ti of indoor air sucked into the ventilation device; Sensor 84.

Next, the microcomputer 60 calculates the measured temperature ratio R from the temperature To of the outdoor air and the temperature Ti of the indoor air measured by the first and second temperature sensors 82 and 84. The measured temperature ratio (R) is defined as the ratio of the lower temperature (T2) of the lower air to the higher temperature (T1) of the air temperature, which is compared with the measured temperature ratio (R) calculated as described above. The set temperature ratio (Ro) is stored in advance.

At this time, the set temperature ratio (Ro) is determined in the range of 80% to 100%, the higher the set temperature ratio (Ro) can increase the reliability of the ability to determine the management information.

Therefore, the microcomputer 60 calculates the measurement temperature ratio R, compares the measurement temperature ratio R with the set temperature ratio Ro, and then the measured temperature ratio R is the set temperature. If it is smaller than the ratio Ro, the management information is generated and input to the notification means 70. The management information includes any one or more of a cleaning cycle or an inspection cycle of the heat exchanger 10 or whether there is an abnormality of the system. It is a concept.

That is, the microcomputer 60 determines that the heat exchange operation between the outdoor air and the indoor air is not sufficiently performed in the heat exchanger 10 when the measured temperature ratio R is smaller than the set temperature ratio Ro. Such a phenomenon may be caused by a large amount of foreign matter such as dust in the heat exchanger 10 such that the blowing efficiency and heat exchange efficiency are reduced, or an abnormality is generated in the system, thereby cleaning or checking the cycle of the heat exchanger 10. Alternatively, it generates management information related to the abnormality of the system and inputs it to the notification means 70.

Next, the notification means 70 is configured in the same manner as the first embodiment of the management information notification device.

The second embodiment of the management information notification method applied to the second embodiment of the management information notification device configured as described above will now be described with reference to FIG. 5.

In the first stage, as the ventilation device is operated, the air supply fan and the exhaust fan are driven in accordance with the current values applied to the motors 22 and 32. Accordingly, outdoor air and indoor air are blown to the heat exchanger 10. As the heat exchange occurs, the outdoor air is supplied to the indoor side and the indoor air is discharged to the outdoor side (see S11 and S12).

Specifically, the outdoor air is sucked into the outdoor air intake hole (4a) and heat exchanged with the indoor air while passing through the heat exchanger (10), and then passes through the air supply fan to indoor through the outdoor air discharge hole (4b) While discharged to the side, indoor air is sucked into the indoor air suction hole 6a and heat exchanged with outdoor air while passing through the heat exchanger 10, and then passes through the exhaust fan to pass the indoor air discharge hole 6b. Through the outdoor side.

The second step is the temperature (To) of the outdoor air discharged from the ventilation device and the temperature of the indoor air sucked into the ventilation device while the air is sucked into the ventilator or heat exchanger (10) and discharged in the first step ( Ti) is measured (see S13).

Here, the temperature To of the outdoor air discharged to the outdoor air discharge hole 4b by the first temperature sensor 82 is measured, and the indoor air suction hole (by the second temperature sensor 84) is measured. The temperature Ti of indoor air sucked into 6a) is measured.

In the third step, the measurement temperature ratio R is calculated from the temperature To of the outdoor air and the temperature Ti of the indoor air measured in the second step (see S14, S15, and S16).

At this time, the microcomputer 60 receives and compares the temperature (To) of the outdoor air and the temperature (Ti) of the indoor air from the first and second temperature sensors (82,84), the higher temperature of the air temperature The measured temperature ratio R is calculated by calculating a lower temperature ratio with respect to.

The fourth step compares the measured temperature ratio R calculated in the third step with a preset stored temperature ratio Ro, and when the measured temperature ratio R is smaller than the set temperature ratio Ro, management information is displayed. Make it known to the user (see S17, S18).

Specifically, the microcomputer 60 compares the measurement temperature ratio R with a set temperature ratio Ro set to a constant value within a range of 80% to 100%, and the measurement temperature ratio R is When it is lower than the set temperature ratio (Ro), it is determined that the heat exchange action is not sufficiently performed while the outdoor air discharged from the ventilation device passes through the heat exchanger 10, which is a dust or the like in the heat exchanger 10. Generates management information that there is a lot of foreign matter or there is an abnormality in the system, the notification means 70 cleaning and checking the heat exchanger 10 to the user according to the management information received from the microcomputer 60 It may indicate that the cycle has passed or that there is an error in the system.

As described above, when the cleaning cycle and the inspection cycle of the heat exchanger 10 or the abnormality of the system are displayed by the notification means 70, the user may clean and check the inside of the heat exchanger 10 or the ventilation apparatus, or the system. You can check the whole thing.

Management information notification device and method for a ventilator according to the present invention configured as described above is to measure the pressure of the discharge air and the pressure of the intake air, the temperature of the outdoor air discharged from the ventilator and the indoor air sucked into the ventilator It measures the temperature of the temperature and accordingly applies various criteria to determine the cleaning cycle and inspection cycle of the heat exchanger or whether the system is abnormal and inform the user to improve the blowing efficiency and heat exchange efficiency. And it does not need to clean and check the ventilation on a regular basis has the advantage of reducing the user's hassle.

Claims (22)

A pressure measuring means installed on a flow path through which the outdoor air or the indoor air is blown by the ventilation device to measure the air pressure; A microcomputer for generating management information on the heat exchanger by comparing the air pressure Po sensed by the pressure measuring means with a preset threshold pressure Pc; Management information notification device for a ventilator, characterized in that consisting of a notification means for informing the user by receiving the management information from the microcomputer. The method of claim 1, The pressure measuring means is a management information notification device for a ventilation device, characterized in that the first pressure sensor is installed on the flow path for outdoor air or indoor air discharged to measure the pressure of the discharged air (Po). The method of claim 1, The microcomputer inputs management information to the notification means when the pressure Po of the discharged air detected by the first pressure sensor is less than the threshold pressure Pc. The method according to any one of claims 1 to 3, The threshold pressure (Pc) is a management information notification device for a ventilator, characterized in that determined according to the current value input to the motor for driving a fan for blowing outdoor air or indoor air. The method according to any one of claims 1 to 3, The management information is a management information notification device for a ventilation device, characterized in that any one or more of the cleaning cycle or inspection cycle or abnormality of the heat exchanger. The method of claim 2, The pressure measuring means includes a second pressure sensor installed on a flow path into which outdoor air or indoor air flows and measuring a pressure Pi of intake air, and a differential pressure ΔP of pressures detected by the first and second pressure sensors. Ventilation management information notification device, characterized in that it further comprises a wind pressure switch to input the) to the microcomputer. The method of claim 6, The microcomputer further stores a critical differential pressure ΔPc between the suction pressure and the discharge pressure of the outdoor air or the indoor air. The method of claim 7, wherein The microcomputer inputs management information to the notification means when the differential pressure ΔP of the air sensed by the pressure measuring means is greater than the threshold differential pressure ΔPc. Temperature measuring means for measuring a temperature (To) of outdoor air discharged by heat exchange from a ventilator and a temperature (Ti) of indoor air sucked into the ventilator; The ratio of the lower air temperature T2 (measurement temperature ratio R) to the higher temperature T1 of the air temperature measured by the temperature measuring means is compared with the pre-stored set temperature ratio Ro. A microcomputer that generates information,  Management information notification device for a ventilator, characterized in that consisting of a notification means for informing the user by receiving the management information from the microcomputer. The method of claim 9, The temperature measuring means is installed on the first temperature sensor for measuring the temperature (To) of the outdoor air discharged by the outdoor air is installed on the flow path discharged from the ventilation device, and installed on the flow path where the indoor air is sucked into the ventilation device And a second temperature sensor for measuring a temperature Ti of indoor air that is inhaled. The method of claim 9, The microcomputer inputs management information to the notification means when the measured temperature ratio R is smaller than the set temperature ratio Ro. The method according to any one of claims 9 to 11, The set temperature ratio (Ro) compared with the measured temperature ratio is a value set in advance in the range of 80% to 100%. The method according to any one of claims 9 to 11, The management information is a management information notification device for a ventilation device, characterized in that any one or more of the cleaning cycle or inspection cycle or abnormality of the heat exchanger. A first step of measuring the pressure of the air blown inside the ventilator; A second step of generating management information by comparing the air pressure Po measured in the first step with a preset threshold pressure Pc; Management information notification method for a ventilation device, characterized in that consisting of a third step of informing the user of the management information generated in the second step. The method of claim 14, The first step includes a first step of measuring the discharge pressure (Po) of the outdoor air or indoor air management information notification method for a ventilation device. The method of claim 15, The second step includes setting a threshold pressure Pc of the discharged air according to a current value input to a motor for driving a fan for blowing outdoor air or indoor air. Way. The method of claim 16, The second step is a first process of comparing the pressure Po of the discharged air measured in the first step and the critical pressure Pc, and the pressure Po of the discharged air as a result of the comparison of the first process And a second process of generating management information when the pressure is smaller than the threshold pressure Pc. The method of claim 15, The first step may further include a second process of measuring a suction pressure Pi of outdoor air or indoor air, and a third process of calculating a differential pressure ΔP between the pressures measured in the first and second processes. Management information notification method for a ventilator characterized in that. The method of claim 18, The second step comprises the step of setting a threshold differential pressure (ΔPc) between the suction pressure and the discharge pressure of the outdoor air or indoor air. The method of claim 19, The second step is a first process of comparing the differential pressure ΔP and the critical differential pressure ΔPc between the suction pressure and the discharge pressure calculated in the first step, and the suction pressure and the discharge as a result of the comparison of the first process. And a second process of generating management information when the differential pressure ΔP between pressures is greater than the threshold differential pressure ΔPc. A first step of measuring a temperature (To) of outdoor air discharged from the ventilation device and a temperature (Ti) of indoor air sucked into the ventilation device; The lower air temperature T2 ratio (measurement temperature ratio R) and the pre-stored set temperature ratio Ro are compared to the higher air temperature T1 among the air temperatures measured in the first step. A second step of generating information, Management information notification method for a ventilation device, characterized in that consisting of a third step of informing the user of the management information generated in the second step. The method of claim 21, The second step is a first step of calculating the measurement temperature ratio (R) from the temperature (To) of the outdoor air and the temperature (Ti) of the indoor air measured in the first step, and the measurement calculated in the first process A second process of comparing a temperature ratio R and the set temperature ratio Ro, and generating management information when the measured temperature ratio R is smaller than the set temperature ratio Ro as a result of the comparison of the second process; Management information notification method for a ventilation device, characterized in that consisting of a third process.

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