KR20200093401A - Ventilation Apparatus System - Google Patents

Abstract

According to the present invention, a ventilator system of a waste heat recovery type capable of simultaneous air supply and exhaust, comprises: an upper module including a first indoor air supply damper, a first indoor exhaust damper, a first outdoor air supply damper, a first outdoor exhaust damper, a first air filter, a first stored heat exchanger, and a first blowing fan, for supplying and exhausting indoor air and outdoor air; a lower module coupled to a lower part of the upper module to be partitioned from the upper module, and including a second indoor air supply damper, a second indoor exhaust damper, a second outdoor air supply damper, and a second outdoor exhaust damper, for supplying and exhausting the indoor air and the outdoor air; a temperature sensing unit for sensing temperature conditions of the outdoor air and the indoor air; an air quality sensing unit for sensing a degree of pollution of the outdoor air and the indoor air; and a control unit for controlling an operating state of a damper and a first blowing fan provided in the upper module and the lower module in accordance with a sensing state in the temperature sensing unit and the air quality sensing unit.

Description

Waste heat recovery ventilation system {Ventilation Apparatus System}

The present invention relates to a waste heat recovery type ventilation system, and more specifically, consists of a waste heat recovery type mechanical ventilation device that exchanges heat between indoor and outdoor air during indoor and outdoor air supply and exhaust using a blower fan and an electric damper. Even if the configuration for securing the bypass flow path when the indoor and outdoor air temperatures are similar and the configuration of the pre-heater for preventing condensation/freezing in cold weather when the outdoor air temperature is low are related to waste heat recovery type ventilation, The present invention relates to a waste heat recovery type ventilation system that can not only satisfy all the regulations of the current regulation, but also allow simultaneous simultaneous exhaust and exhaust to simultaneously meet all the regulations of the current regulation related to the mechanical ventilation system.

In general, in the case of apartments such as buildings or apartments or multi-commercial buildings, the indoor polluted air is discharged to the outside, and the outdoor fresh air must be provided with a ventilation system for supplying it indoors.

Conventional ventilation devices are mostly configured to forcibly discharge contaminated indoor air to the outside using a blower or the like, and fresh air from the outside is introduced into the room through a window. In this case, cold air (summer) or heat ( Since winter) is discharged to the outside, waste of energy is excessive and sudden heat (summer season) or cold air (winter season) flows in from the outside, causing indoor residents to feel uncomfortable due to sudden changes in indoor temperature.

In order to solve these problems, recently, a waste heat recovery type ventilation device has been developed that minimizes energy loss and prevents discomfort of indoor residents by allowing heat exchange between indoor air and outdoor air while supplying outdoor air when exhausting indoor air. However, a representative example of such a waste heat recovery type ventilation device is a ventilation device using a total heat exchanger, which is disclosed in detail in [Document 1] below.

However, in the case of the ventilation device using the total heat exchanger disclosed in the following [Document 1], there is an advantage of minimizing energy loss due to waste heat recovery, but condensation or freezing occurs inside the heat exchanger in winter or cold conditions when the outside temperature is rapidly low. There is a problem in that heat exchange efficiency is rapidly lowered and unnecessary energy is wasted because ventilation is performed through a total heat exchanger even when indoor and outdoor air temperatures are similar.

Therefore, in the [Health-friendly Housing Construction Standard] pursuant to Article 37 of the recently revised [Housing Act] and Article 65 of the [Regulations on Housing Construction Standards], in the case of a waste heat recovery type ventilation system, the bypass (not through an electric heat exchanger) It is proposed to have the function" and "to install a pre-heater to prevent condensation".

For this reason, in order to satisfy the criteria according to the current method, in the case of the total heat exchange ventilation apparatus according to the prior art disclosed in the following [Document 1], the apparatus for forming the bypass flow path and the apparatus for preheater must be separately provided. As the size of the device is increased, it is not easy to install and there is a problem in that the manufacturing cost and maintenance cost of the device are greatly increased.

In order to solve the problems of [Document 1] as described above, in [Document 2], an alternating-current ventilation device to which a heat storage heat exchanger is applied was proposed. In the case of the ventilation device according to [Document 2], an electric heat exchanger is not used. There is no need to provide a separate bypass function, and not only is it possible to recover waste heat by a heat storage heat exchanger, but also heats the heat stored in the heat storage heat exchanger during indoor air exhaustion during winter season to preheat the outdoor air when inhaling outdoor air. There is an advantage that there is no need to provide a preheater.

However, even in the case of the alternating-current ventilation system according to the following [document 2], the recently revised [Rules on Facility Standards for Buildings, etc.] related to Article 11, Paragraph 3, [Installation Standards for Mechanical Ventilation Facilities, such as New Apartment Houses] There was a problem in that it was difficult to apply to an actual building because it could not satisfy the requirements for "ventilation system capable of simultaneous supply and exhaust" specified in No. 7.

[Document 1] Korean Patent Publication No. 2006-0024742 (published on March 17, 2006)

[Document 2] Korean Registered Patent No. 10-0748136 (announced on August 9, 2007)

The present invention is to solve the problems of the prior art as described above, the object of the present invention is a waste heat recovery type mechanical ventilation in which heat exchange between indoor and outdoor air during supply and exhaust of indoor air and outdoor air using a blower fan and an electric damper It is composed of a device, but it does not have a separate configuration for securing a bypass flow path when the indoor and outdoor air temperatures are similar and a pre-heater for preventing condensation/freezing in cold weather when the outdoor air temperature is low. In order to provide a waste heat recovery type ventilation system that not only can satisfy all the regulations of the current laws and regulations related to the type ventilation system, but also can simultaneously supply and exhaust and meet all the regulations of the current laws and regulations related to the mechanical ventilation system. will be.

In order to achieve the above object, the waste heat recovery type ventilation system according to the present invention is a waste heat recovery type ventilation system capable of simultaneous supply and exhaust, a first indoor-side air supply damper for supplying and exhausting outdoor air and indoor air, A first indoor side exhaust damper, a first outdoor side air supply damper, a first outdoor side exhaust damper, a first air filter, a first heat storage heat exchanger, and an upper module provided with a first blower fan. A lower module coupled to the lower portion, a lower module provided with a second indoor-side air supply damper, a second indoor-side exhaust damper, a second outdoor-side air supply damper, and a second outdoor-side exhaust damper for supplying and exhausting the outdoor air and the indoor air, the outdoor The upper and lower modules according to the sensing states of the temperature sensing unit sensing the temperature state of air and indoor air, the air quality sensing unit sensing the degree of contamination of the outdoor air and the indoor air, and the temperature sensing unit and the air quality sensing unit It characterized in that it comprises a control unit for controlling the operating state of the damper and the first blowing fan provided in.

In addition, when performing the indoor air discharge mode for discharging indoor air to the outside, the control unit may include the first indoor exhaust damper, the first outdoor exhaust damper, the second indoor air supply damper, and the second outdoor air supply damper. It characterized in that to operate the first blowing fan in the open state.

In addition, when performing an outdoor air supply mode for supplying outdoor air to the room, the control unit may include the first indoor air supply damper, the first outdoor air supply damper, the second indoor air exhaust damper, and the second outdoor air exhaust damper. It characterized in that to operate the first blowing fan in the open state.

In addition, when performing an indoor air clean mode for circulating indoor air, the control unit operates the first blowing fan in a state in which the first indoor air supply damper and the first indoor air exhaust damper are opened. .

In addition, when performing a positive pressure mode for blocking the discharge of indoor air and supplying outdoor air to the room, the control unit may open the first indoor air supply damper and the first outdoor air supply damper while opening the first blower fan. It characterized in that to operate.

In addition, the controller is characterized in that the indoor air discharge mode and the outdoor air supply mode are alternately performed when the indoor air pollution degree is high and the temperature difference between outdoor air and indoor air is large.

In addition, the control unit is characterized in that to perform either the indoor air discharge mode or the outdoor air supply mode when the indoor air pollution degree is high and the temperature difference between outdoor air and indoor air is small.

In addition, the control unit is characterized in that to perform either of the indoor air clean mode or positive pressure mode when both the indoor air pollution degree and the outdoor air pollution degree is high.

In addition, the lower module is further provided with a second air filter, a second heat storage heat exchanger, and a second blower fan, and when the controller performs the indoor air discharge mode and the outdoor air supply mode, the second blower fan is provided. It is characterized by operating further.

In addition, when performing the indoor air clean mode, the control unit may further operate the second blowing fan while the second indoor air supply damper and the second indoor air exhaust damper are further opened.

In addition, when performing the positive pressure mode, the control unit may further operate the second blowing fan in a state in which the second indoor air supply damper and the second outdoor air supply damper are further opened.

The waste heat recovery type ventilation device according to the present invention is coupled to be partitioned with the upper module and a plurality of indoor air supply units having a plurality of indoor air supply and exhaust dampers, an outdoor air supply and exhaust damper, a heat storage heat exchanger, and a blower fan. Since it is configured to include a lower module having an exhaust damper and an outdoor air supply and exhaust damper, simultaneous air supply and exhaust is possible by controlling the operation of the damper and the blower fan, so that it can satisfy various regulations of current laws and regulations related to mechanical ventilation devices. Has an advantage

In addition, the waste heat recovery type ventilation device according to the present invention can selectively perform waste heat recovery during ventilation according to indoor and outdoor temperature conditions even if a separate bypass flow path-related configuration is not provided by controlling the operation of the damper and the blower fan. In addition, condensation/freezing phenomenon caused by cold outdoor air can be prevented even if a separate preheater is not provided during ventilation of the winter season (or cold weather) by the heat storage heat exchanger. It has the advantage of being able to meet.

In addition, the waste heat recovery type ventilation device according to the present invention, when an additional blower fan is installed in the lower module, in the indoor air clean mode, the upper module and the lower module both pass indoor air through an air filter while preventing the inflow of outdoor air. Because it circulates, there is an advantage that the indoor air can be cleaned very quickly.

In addition, the waste heat recovery type ventilation device according to the present invention is used in a positive pressure mode for supplying outdoor air in a state in which the discharge of indoor air is prevented in a special situation in which the pollution of outdoor air is very high due to yellow dust or fine dust. The inside has an advantage of preventing the inflow of indoors such as fine dust due to a window gap or a door gap by maintaining a positive pressure state where the pressure is higher than outdoors.

1 is an exploded perspective view for explaining the configuration of a waste heat recovery type ventilation system according to a first embodiment of the present invention,
Figure 2 is a combined state diagram of the ventilation system shown in Figure 1,
3 is an external perspective view of a ventilation system according to a first embodiment of the present invention,
4 is a control block diagram of a ventilation system according to a first embodiment of the present invention,
Figure 5 is an explanatory diagram of the operation of the ventilation system according to the first embodiment of the present invention,
Figure 6 is an exploded perspective view for explaining the configuration of a ventilation system according to a second embodiment of the present invention, and
7 is an operation explanatory diagram of a waste heat recovery type ventilation system according to a second embodiment of the present invention.

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

In addition, the types and structures of the "damper", "air filter", "heat storage heat exchanger", and "blowing fan" applied to the present invention are dampers, air filters, which are applied to conventional ventilation systems unless otherwise specified. It may also be applied, including a heat storage heat exchanger and a blower fan.

In addition, the ventilation system according to the present invention has been revised in the [Housing Act] Article 37 and [Regulations on Housing Construction Standards] Article 65 [Health-friendly Housing Construction Standards] and [Building Equipment Standards etc. Rules] ] It is a waste heat recovery type mechanical ventilation system according to [Standards for the installation of mechanical ventilation equipment such as new apartment buildings] related to Article 11 (3).

(Example 1)

The configuration of the first embodiment of the waste heat recovery type ventilation system according to the present invention will be described with reference to Figs.

Figure 1 is an exploded perspective view for explaining the configuration of a waste heat recovery type ventilation system according to a first embodiment of the present invention, Figure 2 is a combined state diagram of the waste heat recovery type ventilation system shown in Figure 1, Figure 3 An external perspective view of a waste heat recovery type ventilation system according to a first embodiment of the present invention, and FIG. 4 is a control block diagram of a waste heat recovery type ventilation system according to a first embodiment of the present invention.

Waste heat recovery type ventilation system according to the first embodiment of the present invention, as shown in Figures 1 to 4, the main body (10, 20, 30) for supplying and exhausting outdoor air and indoor air, the outdoor air and In the temperature sensing unit (110 120) for sensing the temperature condition of the indoor air, the air quality sensing unit (130 140) for detecting the air quality of the outdoor air and the indoor air, the temperature sensing unit (110 120) and the air quality sensing unit (130 140) It includes a control unit 100 for controlling the operating state of a plurality of dampers and a blower fan provided on the main body (10,20,30) as described later according to the detection state.

The main body (10, 20, 30) is substantially a box shape, as shown in Figure 1, the upper module 10, the lower module coupled to the lower portion of the upper module 10 to be partitioned with the upper module 10 20, and a cover 30 for closing the upper module 10.

As illustrated in FIGS. 1 to 4, the upper module 10 has an upper casing 11 formed in a substantially box shape, four upper supply and exhaust mechanisms provided on each side of the upper casing 11, and the upper supply. It comprises four upper dampers provided at the exhaust ports, respectively.

In this case, the four upper air supply and exhaust ports are respectively provided with a first indoor air supply port 12a and a first indoor air supply port 12b provided on the indoor side, and a first outdoor air supply port 12c and a first provided on the outdoor side. It consists of an outdoor side exhaust port (12d).

In addition, corresponding to this, the four upper dampers are respectively provided with a first indoor-side air supply damper 13a and a first indoor-side exhaust damper 13b provided on the indoor side, and a first outdoor-side air supply damper 13c provided on the outdoor side. And a first outdoor exhaust damper (13d).

In addition, the upper module 10 has a plurality of first damper driving unit 13 installed inside the upper casing 11, the first air filter 14, the first heat storage heat exchanger 15 and the first blowing fan It is configured to further include (16).

At this time, the upper damper may be composed of an electric damper capable of opening and closing adjustment, and the first damper driving unit 13 is installed on one side of each upper supply and exhaust mechanism to drive the electric damper installed in the supply and exhaust mechanism to open and close and/or It may be composed of an electric motor that controls the opening degree.

In addition, the first air filter 14, the first heat storage heat exchanger 15 and the first blowing fan 16 are installed between the above-mentioned four upper air supply and exhaust ports, the first air filter 14 is an example As it may be composed of a hepa filter of a grade capable of removing fine dust and / or ultra fine dust, if necessary, it may be composed of a filter module further comprising a pre-filter, deodorizing filter, and antibacterial filter.

In addition, as described below, the first heat storage heat exchanger 15 absorbs warm heat (winter season) or cold heat (summer season) included in the indoor air (hereinafter referred to as'heat storage' and'heat storage') when exhausting indoor air. It is preferable to be composed of a heat storage material capable of performing the process of discharging the absorbed warm or cold heat to outdoor air (hereinafter referred to as'heat dissipation' and'cooling') when supplying outdoor air. , The heat storage material may be made of charcoal, ceramic, metal, synthetic resin, fiber, or phase change materials (PCM).

In addition, the first heat storage heat exchanger 15 absorbs the moisture contained in the indoor air when the indoor air is exhausted (hereinafter referred to as'humidification') so that heat exchange between indoor air and outdoor air can be achieved. It is more preferable to be composed of a heat storage material capable of further performing a process of discharging the absorbed moisture into the outdoor air (hereinafter referred to as'moisture-proof') when supplying outdoor air. It is more preferably composed of a hygroscopic and/or porous ceramic material such as charcoal or clay, diatomaceous earth, zeolite, and the like.

In the case of the present embodiment, the heat storage material is composed of charcoal or the above-mentioned ceramic material for heat exchange between indoor air and outdoor air as described above, and the first heat storage heat exchanger 15 has the above heat storage material plate It was constructed by stacking a plurality of unit heat storage plates molded into a shape.

In addition, if necessary, the first heat storage heat exchanger 15 may be formed of a structure in which a flow path is formed in a rectangular parallelepiped heat storage material, for example, a honeycomb structure.

In addition, the lower module 20, as shown in Figures 1 to 4, the lower casing (21) in a substantially box shape, the four lower supply and supply mechanism provided on each side of the lower casing (21), the It comprises four lower dampers, each provided in a lower supply and exhaust mechanism.

At this time, the four lower air supply and exhaust ports are respectively provided with a second indoor air supply port 22a and a second indoor air supply port 22b provided on the indoor side, and a second outdoor air supply port 22c and a second provided on the outdoor side. It consists of an outdoor-side exhaust port (22d).

In addition, corresponding to this, the four lower dampers each include a second indoor-side air supply damper 23a and a second indoor-side exhaust damper 23b provided on the indoor side, and a second outdoor-side air supply damper 23c provided on the outdoor side. And a second outdoor-side exhaust damper 23d.

In addition, the lower module 20 is configured to further include a plurality of second damper driving units 23 installed inside the lower casing 21. As described in the upper module 10, the lower damper has opening and closing adjustment. It can be configured as a possible electric damper, the second damper drive unit 23 is installed on each side of the lower supply and exhaust mechanism to drive the electric damper installed in the supply and discharge mechanism to be configured as an electric motor to control the opening and/or opening degree Can.

At this time, the height of the lower module 20 according to the present embodiment is provided in a size of approximately 1/2 of the height of the upper module 10 as shown in FIG. 2 to simplify the product size of the entire ventilation system. It is more preferable.

On the other hand, the control unit 100 is made of a conventional microprocessor, the ventilation system according to the first embodiment of the present invention, as shown in Figure 4, the temperature detection to detect the temperature condition of the outdoor air and indoor air The indoor air quality sensor 130 and the outdoor air quality sensor 140 and the memory 150 as an air quality detection unit that detects the indoor air quality of the indoor temperature sensor 110 and the outdoor temperature sensor 120 and the outdoor air and indoor air. Includes.

The indoor temperature sensor 110 and the outdoor temperature sensor 120 may be formed of a normal temperature sensor, and the indoor air quality sensor 130 and the outdoor air quality sensor 140 are, for example, fine dust detection sensors, CO ₂ It may be made of a sensor capable of detecting the degree of contamination of indoor air or outdoor air, such as a sensor.

In addition, the temperature sensing units 110 and 120 and the air quality sensing units 130 and 140 are at least one indoor side of the upper casing 11 or the lower casing 21 within a range capable of measuring the temperature or air quality of indoor and outdoor air. And it can be mounted on each side of the outdoor.

The memory 150 is made of, for example, a non-volatile memory, and the memory 150 includes information about an operation mode of a ventilation system including an indoor air discharge mode, an outdoor air supply mode, and an indoor air clean mode. Is saved.

The control unit 100 includes information on various operation modes of a ventilation system such as an indoor air discharge mode, an outdoor air supply mode, an indoor air clean mode, etc. stored in the memory 150 to maintain optimal indoor air, and The operating states of the plurality of dampers and the first blower fan 16 are controlled according to the sensing information from the temperature sensing units 110 and 120 and the air quality sensing units 130 and 140.

On the other hand, in the ventilation system according to this embodiment, as shown in Figure 3, the first and second indoor-side air supply holes (12a, 22a), the first and second indoor-side exhaust ports (12b, 22b) adjacent to each other up and down , The first to fourth damper covers 40a to 40d covering the first and second outdoor air supply holes 12c and 22c and the first and second outdoor air outlets 12d and 22d, respectively, are upper casings 11 ) And the lower casing 21.

In addition, an indoor air supply duct and an indoor exhaust duct, not shown, are respectively connected to ends of the first damper cover 40a and the second damper cover 40b, and the third damper cover 40c and the second 4 An outdoor air supply duct and an outdoor air exhaust duct (not shown) are respectively connected to ends of the damper cover 40d.

Next, the operation control method of the ventilation system according to the first embodiment of the present invention will be described with reference to FIG. 5, wherein FIG. 5 is operation of each ventilation mode of the ventilation system according to the first embodiment of the present invention. It is an explanatory diagram.

Figure 5 (a) is a diagram of the indoor air discharge mode for discharging indoor air to the outside while operating the first blowing fan 16 installed in the upper module 10 of the operation mode of the ventilation system according to this embodiment to be.

In this case, the control unit 100 operates the first blowing fan 16 in the state in which the first indoor-side exhaust damper 13b and the first outdoor-side exhaust damper 13d of the upper module 10 are opened. The above-described mechanical type is performed by discharging air to the outside and opening the second indoor air supply damper 23a and the second outdoor air supply damper 23c of the lower module 20 to form an air supply device to simultaneously perform air supply and exhaust. You will meet all the regulations of the ventilation system.

In addition, FIG. 5(b) shows an outdoor air supply mode in which outdoor air is supplied into the room while operating the first blowing fan 16 installed in the upper module 10 among the operation modes of the ventilation system according to the present embodiment. This is a drawing.

In this case, the control unit 100 operates the first blowing fan 16 in the state where the first indoor air supply damper 13a and the first outdoor air supply damper 13c of the upper module 10 are opened. Mechanical ventilation as described above by supplying air into the room and opening the second indoor exhaust damper 23b and the second outdoor exhaust damper 23d of the lower module 20 to form an exhaust port to achieve simultaneous exhaust and exhaust It meets all the regulations of the current legislation on the device.

In addition, the control unit 100 is a temperature measurement unit (110,120) as a result of the measurement, the indoor temperature is low and the outdoor temperature is high in the summer, or the indoor temperature is high and the outdoor temperature is low in the winter season (ie, the temperature difference between the outdoor air and the indoor air is Large case) When the indoor air quality detected by the air quality detecting unit is high, the indoor air discharge mode and the outdoor air supply mode are alternately performed.

At this time, in the summer season, the first heat storage heat exchanger (16) is cooled and humidified in the indoor air discharge mode, and the first heat storage heat exchanger (16) is cooled and moistureproof in the outdoor air supply mode. Waste heat recovery is achieved.

In addition, even in the winter season, heat storage and humidification of the first heat storage heat exchanger (16) is performed in the indoor air discharge mode, and heat dissipation and moisture resistance of the first heat storage heat exchanger (16) is performed in the outdoor air supply mode for total heat exchange. Waste heat recovery is achieved.

In addition, in the case of the winter season, the first heat storage heat exchanger 16 functions as a preheater because the outdoor air having a low temperature is preheated and flows into the room during the heat dissipation process. Even if a preheater device is not provided separately, it satisfies all the regulations of the current laws and regulations for the waste heat recovery type ventilation device described above.

In addition, when the difference between the indoor temperature and the outdoor temperature is very large in the summer or winter, the control unit 100 may set different operating cycles or times of the indoor air discharge mode and the outdoor air supply mode, if necessary.

In this case, it is preferable that information regarding a temperature difference between indoor and outdoor air and a degree of pollution of indoor air for performing the indoor air discharge mode and the outdoor air supply mode is determined in advance and stored in the memory unit 150.

In addition, when the pollution degree of indoor air is high in spring or autumn when there is little temperature difference between indoor and outdoor air, the control unit 100 determines indoor temperature, outdoor temperature, and indoor air pollution level to determine the indoor air discharge mode or outdoor air. Any one of the operation modes of the air supply mode can be selectively performed. For this, it is preferable that information regarding the temperature difference of the indoor and outdoor air and the degree of pollution of the indoor air is determined in advance and stored in the memory unit 150.

Also, in the above case, as described above, when the indoor air is discharged (upper module), an air supply port is formed (lower module), and when the outdoor air is supplied (upper module), an exhaust port (lower module) is formed. Whatever operation mode is selected, the ventilation system according to the present embodiment satisfies all the regulations of the current laws and regulations for the mechanical ventilation system.

In addition, in the case of the spring or autumn, since the two operation modes are not alternately performed, simultaneous exhaust and exhaust are performed without waste heat recovery, so the ventilation system according to this embodiment has a configuration related to the formation of the bypass flow path. Even if it is not provided separately, all the regulations of the current laws and regulations for the waste heat recovery type ventilation device described above are still satisfied.

On the other hand, Figure 5 (c) is a diagram of the indoor air cleaning mode for circulating the indoor air while operating the first blowing fan 16 installed in the upper module 10 of the operation mode of the ventilation system according to this embodiment to be.

The controller 100 may perform the indoor air clean mode when both indoor air pollution and outdoor air pollution are high. In this case, the first indoor air supply damper 13a of the upper module 10 may be operated. 1 By operating the first blowing fan 16 in the state where the indoor exhaust damper 13b is opened, the indoor air is circulated into the room, and all the dampers of the lower module 20 are kept closed.

In addition, although not shown in the drawing, in the case of the ventilation system according to the present embodiment, in a special situation in which the pollution of outdoor air is very high due to yellow dust or fine dust, the upper module 10 operates in the outdoor air supply mode while lower module 20 All dampers of) may be subjected to a positive pressure mode that is closed.

In this case, since the outdoor air passing through the air filter 15 is continuously supplied to the room, since indoor air is not discharged, the indoor space is maintained in a positive pressure state, thereby causing external yellow dust or fine dust through the door gap or window gap. There is an advantage that can be prevented from entering the room.

When performing any one of the indoor air discharge mode, outdoor air supply mode, indoor air clean mode, and positive pressure mode described above, the control unit 100 opens the various dampers according to the indoor/outdoor temperature and the degree of contamination of the indoor/outdoor air. , The execution cycle (or time) of each operation mode, the blowing amount of the first blowing fan, and the like can be controlled differently, which is the same in the second embodiment described later.

(Example 2)

Hereinafter, the configuration of the second embodiment of the ventilation system according to the present invention will be described with reference to FIG. 6, and the same reference numerals will be assigned to the same configuration as the first embodiment described above, and redundant description will be omitted.

In the ventilation system according to the second embodiment of the present invention, as shown in FIG. 6, the main body 10, 50, 30 is substantially in the form of a box, the upper module 10, the lower module 50, and the upper It includes a cover 30 for closing the module 10.

Since the configuration of the upper module 10 and the cover 30 is the same as the first embodiment described above, a detailed description thereof will be omitted.

In addition, the lower module 50 includes a lower casing 51 formed in a substantially box shape, four lower supply and exhaust mechanisms provided on each side of the lower casing 51, and four lower dampers respectively provided in the lower supply and exhaust mechanism. Including.

At this time, the four lower air supply and exhaust ports are respectively provided with a second indoor air supply port 52a and a second indoor air supply port 52b provided on the indoor side, and a second outdoor air supply port 52c and a second provided on the outdoor side. It consists of an outdoor-side exhaust port (52d).

In addition, corresponding to this, the four lower dampers each include a second indoor-side air supply damper 53a and a second indoor-side exhaust damper 53b provided on the indoor side, and a second outdoor-side air supply damper 53c provided on the outdoor side. And a second outdoor-side exhaust damper 53d.

In addition, the lower module 50, like the upper module 10, a plurality of second damper driving unit 53 installed inside the lower casing 51, the second air filter 54, the second heat storage heat exchanger ( 55) and a second blower fan 56, the second damper driving unit 53, the second air filter 54, and the second heat storage heat exchanger 55 are configured as described above. In the embodiment, since the same as that described for the upper module 10, redundant description will be omitted here.

In addition, in the case of this embodiment, the height of the lower module 50 is provided to be approximately the same size as the height of the upper module 10, as shown in FIG. 6.

Next, a method for controlling operation of the ventilation system according to the second embodiment of the present invention will be described with reference to FIG. 7, wherein FIG. 7 is an operation mode of the ventilation system according to the second embodiment of the present invention. It is an explanatory diagram.

7(a) illustrates a first supply/exhaust system for discharging indoor air to the outside during the operation mode of the ventilation system according to the present embodiment to the outside, and for supplying outdoor air to the indoor at the lower module 50. This is a diagram for the mode (corresponding to the indoor air discharge mode in the first embodiment).

In this case, the control unit 100 operates the first blowing fan 16 in the state in which the first indoor-side exhaust damper 13b and the first outdoor-side exhaust damper 13d of the upper module 10 are opened. The air is discharged to the outside, and the second air blowing fan 56 is operated while the second indoor air supply damper 53a and the second outdoor air supply damper 53c of the lower module 50 are opened to operate outdoor air. By supplying air into the room so that simultaneous air supply and exhaust can be achieved, the overall provisions of laws and regulations for the mechanical ventilation system described above are satisfied.

In addition, FIG. 7(b) is a second mode in which the outdoor air is supplied to the indoor from the upper module 10 and the indoor air is discharged from the lower module 50 during the operation mode of the ventilation system according to the present embodiment. This is a diagram for a supply/exhaust mode (corresponding to the outdoor air supply mode in the first embodiment).

In this case, the control unit 100 operates the first blowing fan 16 in the state where the first indoor air supply damper 13a and the first outdoor air supply damper 13c of the upper module 10 are opened. Air is supplied to the room, and the second air blowing fan 56 is operated while the second indoor side exhaust damper 53b and the second outdoor side exhaust damper 53d of the lower module 50 are opened to operate indoor air. By discharging to the outside so that simultaneous supply and exhaust can be achieved, the current regulations for the mechanical ventilation system described above are satisfied.

In addition, when the indoor temperature is high in the summer season when the indoor temperature is low and the outdoor temperature is high, or when the indoor temperature is high and the outdoor temperature is low in the winter season when the indoor temperature is low as a result of the measurement by the temperature sensing units 110 and 120, the control unit 100 is the first. The air supply and exhaust mode and the second air supply and exhaust mode are alternately performed.

At this time, in the summer season, in the first supply/exhaust mode, the first heat storage heat exchanger (16) of the upper module (10) is cooled and humidified, and the second heat storage heat exchanger (56) of the lower module (50) is cooled and cooled. Moisture proof is achieved.

In the summer, in the second supply/exhaust mode, cooling and moisture-proofing are performed in the first heat storage heat exchanger (16) of the upper module (10), and in the second heat storage heat exchanger (56) of the lower module (50). A surprise attack takes place.

Accordingly, when the first supply and exhaust mode and the second supply and exhaust mode are alternately performed, in the case of the ventilation system according to the present embodiment, waste heat recovery by total heat exchange is achieved.

In addition, in the case of the winter season, in the first supply/exhaust mode, heat storage and humidification in the first heat storage heat exchanger (16) of the upper module (10), heat dissipation and moisture resistance in the second heat storage heat exchanger (56) of the lower module (50). In the second supply/exhaust mode, heat dissipation and moisture proof in the first heat storage heat exchanger (16) of the upper module (10), and heat storage and moisture storage in the second heat storage heat exchanger (56) of the lower module (50).

Accordingly, in the case of the winter season, when the first and second air supply modes are alternately performed, in the case of the ventilation system according to the present embodiment, waste heat recovery by total heat exchange is achieved.

In addition, in the case of the above-described winter season, the first heat storage heat exchanger 16 or the low temperature outdoor air is preheated and flows into the room during the above-described heat dissipation process in the first supply and exhaust mode. Since the second heat storage heat exchanger 56 performs the function of a preheater, the ventilation system according to this embodiment satisfies all the regulations of the current laws and regulations for the waste heat recovery type ventilation device described above even if the preheater device is not separately provided. Is ordered.

In addition, when the difference between the indoor temperature and the outdoor temperature in the summer or winter is very large, the control unit 100 may set the operation cycle or time of the first air supply and exhaust mode differently, if necessary. have.

In addition, the controller 100 determines the indoor temperature, the outdoor temperature, the indoor air pollution level, and the outdoor air pollution level when the indoor air pollution degree is high in spring or autumn when there is little difference between indoor and outdoor temperatures. Either of the exhaust mode or the second supply/exhaust mode can be selectively performed.

In this case, as described above, since both the first air supply mode and the second air supply and exhaust mode are performed simultaneously, the ventilation system according to the present embodiment of the present invention provides a mechanical ventilation system regardless of the operation mode. You will meet all regulations.

In addition, in the case of the spring or autumn, since the two operation modes are not alternately performed, simultaneous exhaust and exhaust are performed without waste heat recovery, so the ventilation system according to this embodiment has a configuration related to the formation of the bypass flow path. Even if it is not provided separately, all the regulations of the current laws and regulations for the waste heat recovery type ventilation device described above are still satisfied.

Meanwhile, FIG. 5(c) shows the first blowing fan 16 and the second blowing fan 56 installed in the upper module 10 and the lower module 50 during the operation mode of the ventilation system according to the present embodiment. This is a diagram of an indoor air clean mode that circulates indoor air while operating all of them.

The controller 100 may perform the indoor air clean mode when both indoor air pollution and outdoor air pollution are high. In this case, the first indoor air supply damper 13a and the first 1 The first ventilation fan 16 and the second with the indoor exhaust damper 13b and the second indoor supply air damper 53a and the second indoor exhaust damper 53b of the lower module 50 open. The air blowing fan 56 is operated to circulate indoor air into the room.

In this case, since both modules perform the indoor air clean mode, the ventilation system according to the present embodiment has very clean air (that is, removes indoor air pollution) when compared with the conventional heat exchange type ventilation device. There is an advantage that can be performed quickly.

In addition, although not shown in the drawings, in the case of the ventilation system according to the present embodiment, in a special situation in which the pollution of outdoor air is very high due to yellow dust or fine dust, both the upper module 10 and the lower module 50 indoor air. It is also possible to perform a positive pressure mode to supply air.

In this case, while a large amount of outdoor air passing through the first air filter 15 and the second air filter 55 is continuously supplied to the room, the indoor space is discharged through a door gap or a window gap. By maintaining the positive pressure state, there is an advantage of preventing external yellow dust or fine dust from entering the room through the door gap or the window gap.

When performing any one of the first air supply/exhaust mode, the second air supply/exhaust mode, the indoor air clean mode, and the positive pressure mode described above, the control unit 100 may provide various dampers according to the indoor/outdoor temperature and the degree of contamination of the indoor/outdoor air. The opening degree, the execution cycle (or time) of each operation mode, and the blowing amount of the first and second blowing fans 16 and 56 may be controlled differently.

10: upper module 20,50: lower module
100: control unit 110: indoor temperature sensor
120: outdoor temperature sensor 130: indoor air quality sensor
140: outdoor air quality sensor

Claims (11)

A waste heat recovery type ventilation system capable of simultaneous supply and exhaust,
A first indoor-side air supply damper, a first indoor-side exhaust damper, a first outdoor-side air supply damper, a first outdoor-side exhaust damper, a first air filter, a first heat storage heat exchanger, and a first heat exchanger for supplying and exhausting outdoor air and indoor air 1 upper module provided with a blower fan;
It is coupled to the lower portion of the upper module so as to be partitioned with the upper module, a second indoor-side air supply damper, a second indoor-side exhaust damper, a second outdoor-side air supply damper, a second outdoor side to supply and exhaust the outdoor air and the indoor air A lower module provided with an exhaust damper;
A temperature sensing unit detecting temperature states of the outdoor air and the indoor air;
An air quality sensor that detects the degree of contamination of the outdoor air and the indoor air; And
And a damper provided in the upper module and the lower module and a control unit controlling an operating state of the first blowing fan according to the sensing state of the temperature sensing unit and the air quality sensing unit. According to claim 1,
The control unit opens the first indoor-side exhaust damper, the first outdoor-side exhaust damper, the second indoor-side air supply damper, and the second outdoor-side air supply damper when performing an indoor air discharge mode for discharging indoor air to the outside. A waste heat recovery type ventilation system, characterized in that the first blower fan is operated in one state. According to claim 2,
The control unit opens the first indoor air supply damper, the first outdoor air supply damper, the second indoor air exhaust damper, and the second outdoor air exhaust damper when performing an outdoor air supply mode for supplying outdoor air to the room. A waste heat recovery type ventilation system, characterized in that the first blower fan is operated in one state. According to claim 3,
When the controller performs an indoor air clean mode that circulates indoor air, the waste heat recovery is characterized in that the first blower fan is operated while the first indoor air supply damper and the first indoor exhaust damper are opened. Type ventilation system. According to claim 4,
The control unit operates the first blowing fan in a state in which the first indoor air supply damper and the first outdoor air supply damper are opened when a positive pressure mode for blocking indoor air discharge and supplying outdoor air to the room is performed. Waste heat recovery type ventilation system, characterized in that. The method of claim 5,
The control unit is a waste heat recovery type ventilation system characterized in that the indoor air discharge mode and the outdoor air supply mode are alternately performed when the indoor air pollution degree is high and the temperature difference between outdoor air and indoor air is large. The method of claim 6,
The control unit is a waste heat recovery type ventilation system, characterized in that to perform either the indoor air discharge mode or the outdoor air supply mode when the indoor air pollution degree is high and the temperature difference between outdoor air and indoor air is small. The method of claim 7,
The control unit is a waste heat recovery type ventilation system, characterized in that to perform either the indoor air clean mode or positive pressure mode when both the indoor air pollution degree and the outdoor air pollution degree is high. The method of claim 8,
The lower module is further provided with a second air filter, a second heat storage heat exchanger, and a second blowing fan,
The control unit is a waste heat recovery type ventilation system, characterized in that to further operate the second blowing fan when performing the indoor air discharge mode and the outdoor air supply mode. The method of claim 9,
When the indoor air cleaning mode is performed, the control unit further operates the second blowing fan in a state in which the second indoor air supply damper and the second indoor air exhaust damper are further opened. Device system. The method of claim 10,
When the positive pressure mode is performed, the control unit further operates the second blowing fan in a state in which the second indoor air supply damper and the second outdoor air supply damper are further opened.

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