KR102167857B1 - Ventilation Apparatus System - Google Patents

Abstract

The waste heat recovery ventilator system according to the present invention is a waste heat recovery ventilator system capable of simultaneous supply and exhaust. A first indoor air supply damper, a first indoor exhaust damper, and a first An upper module provided with an outdoor supply air damper, a first outdoor exhaust damper, a first air filter, a first heat storage heat exchanger, and a first blowing fan, coupled to a lower portion of the upper module so as to be partitioned from the upper module, and the outdoor air and To supply and exhaust indoor air, a second indoor air supply damper, a second indoor exhaust damper, a second outdoor air supply damper, a lower module equipped with a second outdoor exhaust damper, detects the temperature conditions of the outdoor air and indoor air. The temperature detection unit, the air quality detection unit that detects the pollution level of the outdoor air and the indoor air, and the damper provided in the upper module and the lower module and the first blowing fan according to the detection state of the temperature detection unit and the air quality detection unit. It characterized in that it comprises a control unit for controlling the operating state.

Description

Waste heat recovery ventilation system {Ventilation Apparatus System}

The present invention relates to a waste heat recovery type ventilation system, and more specifically, it is composed of a waste heat recovery type mechanical ventilation system in which heat exchange is performed between indoor and outdoor air when supplying and exhausting indoor air and outdoor air using a blowing fan and an electric damper, Even if a configuration for securing a bypass flow path when the indoor and outdoor air temperature is similar and a pre-heater for preventing condensation/icing in cold weather when the outdoor air temperature is low are not separately provided, it is related to waste heat recovery ventilation system. The present invention relates to a waste heat recovery ventilation system capable of not only meeting all the regulations of the current legislation, but also capable of simultaneously supplying and exhausting the supply and exhaustion, thereby simultaneously meeting all the regulations of the current regulations related to mechanical ventilation.

In general, in the case of a building or an apartment house such as an apartment or multi-purpose building, a ventilation system must be provided to discharge indoor contaminated air to the outside and to supply fresh outdoor air to the interior.

Most conventional ventilation devices are configured to forcibly discharge contaminated indoor air to the outside by using a blower, and to allow fresh air from outside to flow into the room through a window, etc., in this case, in this case, indoor cold air (summer) or heat ( Because winter) is discharged to the outside as it is, not only the waste of energy is excessive, but also the sudden heat (summer) or cold (winter season) flows from the outside, causing the indoor resident to feel unpleasant due to the sudden change in the indoor temperature.

In order to solve this problem, recently, a waste heat recovery type ventilation system has been developed that minimizes energy loss and prevents discomfort of indoor residents by supplying outdoor air when exhausting indoor air and allowing heat exchange between indoor air and outdoor air. A typical example of such a waste heat recovery type ventilation system is a ventilation system using a total heat exchanger disclosed in detail in the following [Document 1].

However, in the case of the ventilation system using the total heat exchanger disclosed in [Document 1] below, there is an advantage of minimizing energy loss by waste heat recovery, but condensation or freezing occurs inside the heat exchanger in winter or cold conditions when the outside temperature is rapidly low. As a result, there is a problem in that the heat exchange efficiency is rapidly deteriorated, and because ventilation is performed through the total heat exchanger even when the indoor and outdoor air temperature is similar, unnecessary energy waste occurs.

Therefore, according to the recently revised [Housing Act] Article 37 and [Housing Construction Standards, etc.] Article 65, the health-friendly housing construction standard indicates that the waste heat recovery ventilation system is "bypass (without going through a total heat exchanger). The requirements are "to have a function" and "to install a pre-heater to prevent condensation".

For this reason, in the case of the total heat exchange type ventilation device according to the prior art disclosed in [Document 1] below, in order to meet the criteria according to the current law, a device for forming a bypass flow path and a preheater-related device must be separately provided inside the ventilation device. Due to the increased size of the device, it is not easy to install it, 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, the following [Document 2] presents an AC type ventilation device using a heat storage type heat exchanger. In the case of the ventilation device according to [Document 2], since a total heat exchanger is not used. There is no need to have a separate bypass function, and waste heat can be recovered by the heat storage heat exchanger, and the heat stored in the heat storage heat exchanger when exhausting indoor air in winter performs the function of preheating 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 an AC ventilation system according to the following [Document 2], the recently revised [Rules on Equipment Standards, etc. for Buildings] Article 11, Paragraph 3, [Installation Standards for Mechanical Ventilation Facilities for New Apartment Houses, etc.] There was a problem that it was difficult to apply to actual buildings, because the requirements for “a ventilation system capable of simultaneous supply and exhaust” stipulated in No. 7 could not be satisfied.

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

[Document 2] Korean Patent Registration No. 10-0748136 (Announcement on Aug 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 is performed between indoor and outdoor air when supplying and exhausting indoor air and outdoor air using a blower fan and an electric damper. It is composed of a device, but the configuration for securing the bypass flow path when the indoor and outdoor air temperature is similar, and the configuration of a pre-heater for preventing condensation/icing in cold weather when the outdoor air temperature is low, waste heat recovery To provide a waste heat recovery ventilation system that can not only meet all the regulations of the current regulations related to the type ventilation system, but also meet the regulations of the current regulations related to the mechanical ventilation system by enabling simultaneous supply and exhaust. will be.

In order to achieve the above object, the waste heat recovery ventilator system according to the present invention is a waste heat recovery ventilator system capable of simultaneous supply and exhaust, and includes a first indoor air supply damper to supply and exhaust outdoor air and indoor air, The first indoor exhaust damper, the first outdoor air supply damper, the first outdoor exhaust damper, the first air filter, the upper module provided with the first heat storage heat exchanger and the first blowing fan, the upper module so as to be partitioned from the upper module. A lower module coupled to the lower portion and provided with a second indoor air supply damper, a second indoor exhaust damper, a second outdoor air supply damper, and a second outdoor exhaust damper to supply and exhaust the outdoor air and indoor air, the outdoor A temperature sensing unit sensing the temperature state of air and indoor air, an air quality sensing unit sensing pollution degree of the outdoor air and indoor air, and the upper module and the lower module according to the sensing state in the temperature sensing unit and the air quality sensing unit It characterized in that it comprises a control unit for controlling the operation state of the damper and the first blowing fan provided in.

In addition, when performing an indoor air discharge mode in which indoor air is discharged 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 the first blowing fan is operated in a state in which is opened.

In addition, when performing the outdoor air supply mode for supplying outdoor air to the indoor, the control unit may include the first indoor air supply damper, the first outdoor air supply damper, the second indoor exhaust damper, and the second outdoor exhaust damper. It characterized in that the first blowing fan is operated in a state in which is opened.

In addition, when performing the indoor air cleaning mode for circulating indoor air, the control unit may operate the first blowing fan while the first indoor air supply damper and the first indoor exhaust damper are open. .

In addition, when performing the positive pressure mode in which the indoor air is blocked from being discharged and the outdoor air is supplied to the indoor, the first blower fan while the first indoor air supply damper and the first outdoor air supply damper are opened. It characterized in that it operates.

In addition, the controller may alternately perform the indoor air discharge mode and the outdoor air supply mode when the indoor air pollution is high and the temperature difference between the outdoor air and the indoor air is large.

In addition, the controller may perform either the indoor air discharge mode or the outdoor air supply mode when the indoor air pollution is high and the temperature difference between the outdoor air and the indoor air is small.

In addition, the controller may perform either the indoor air cleaning mode or the positive pressure mode when both indoor air pollution and outdoor air pollution are high.

In addition, the lower module is further provided with a second air filter, a second heat storage heat exchanger, and a second blowing fan, and the control unit operates the second blowing fan when performing the indoor air discharge mode and the outdoor air supply mode. It is characterized by further operating.

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

In addition, when performing the positive pressure mode, the control unit may further operate the second blowing fan while 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 includes an upper module including a plurality of indoor supply/exhaust dampers, an outdoor supply/exhaust damper, a heat storage heat exchanger, and a blower fan, and is coupled to the upper module so as to be partitioned. Since it is configured to include a lower module having an exhaust damper and an outdoor air supply/exhaust damper, simultaneous supply and exhaust can be performed by controlling the operation of the damper and the blowing fan, thus satisfying all regulations of the current laws and regulations related to mechanical ventilation. Has an advantage.

In addition, the waste heat recovery type ventilation apparatus 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 blowing fan. In addition, since the heat storage heat exchanger can prevent condensation/icing caused by cold outdoor air even if a separate preheater is not provided for ventilation in winter (or cold weather), all regulations of the current laws and regulations related to the waste heat recovery ventilation system are followed. It has an advantage that can be satisfied.

In addition, in the case of additionally installing a blower fan in the lower module, the waste heat recovery ventilator according to the present invention passes indoor air through an air filter in a state in which both the upper module and the lower module prevent the inflow of outdoor air in the indoor air cleaning mode. Since it is circulated, there is an advantage that indoor air can be cleaned very quickly.

In addition, the waste heat recovery ventilator according to the present invention performs a positive pressure mode in which outdoor air is supplied in a state that prevents the discharge of indoor air in a special situation where the pollution of outdoor air is very high due to yellow dust or fine dust. There is an advantage of preventing the inflow of fine dust into the interior due to window gaps or door gaps by maintaining a positive pressure state, which has a higher pressure 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 exterior 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 system according to a first embodiment of the present invention;
5 is an explanatory diagram of the operation of the ventilation system according to the first embodiment of the present invention;
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 a diagram illustrating the operation of the waste heat recovery type ventilation system according to the 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, unless otherwise noted, are applied to a conventional ventilation system, It may be applied including a heat storage heat exchanger and a blower fan.

In addition, the ventilation system according to the present invention is the recently revised [Housing Act] Article 37 and [Regulations on Housing Construction Standards] Article 65 [Health-Friendly Housing Construction Standards] and [Rules on Equipment Standards for Buildings] ] It is a waste heat recovery type mechanical ventilation system in accordance with the [Installation Criteria for Mechanical Ventilation Facilities for Newly Built Apartment Houses, etc.] in accordance with Article 11, Paragraph 3.

(Example 1)

The configuration of the first embodiment of the waste heat recovery ventilation system according to the present invention will be described with reference to FIGS. 1 to 4.

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

The waste heat recovery ventilation system according to the first embodiment of the present invention includes a main body 10, 20, 30 for supplying and exhausting outdoor air and indoor air, the outdoor air and In the temperature sensing units 110 and 120 for sensing the temperature state of indoor air, the air quality sensing units 130 and 140 for sensing the air quality state of the outdoor air and indoor air, the temperature sensing units 110 and 120 and the air quality sensing units 130 and 140 It includes a control unit 100 for controlling the operation state of the plurality of dampers and the blowing fan provided in the main body (10, 20, 30) according to the detection state as described later.

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

In the upper module 10, as shown in Figs. 1 to 4, an upper casing 11 substantially in a box shape, four upper supply and exhaust ports provided on each side of the upper casing 11, and the upper supply It is configured to include four upper dampers each provided in the exhaust port.

At this time, the four upper supply and exhaust ports include a first indoor supply port 12a and a first indoor exhaust port 12b provided on the indoor side, and a first outdoor supply port 12c and a first It is composed of an outdoor exhaust port 12d.

In addition, in response to this, the four upper dampers include a first indoor air supply damper 13a and a first indoor exhaust damper 13b provided on the indoor side, respectively, and a first outdoor air supply damper 13c provided on the outdoor side, respectively. And a first outdoor exhaust damper 13d.

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

In this case, the upper damper may be composed of an electric damper capable of opening and closing, and the first damper driving unit 13 is installed at one side of each of the upper supply and discharge ports to drive an electric damper installed in the supply and discharge port to open and close and/or It can 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 four upper supply and exhaust ports described above, and the first air filter 14 is an example As an example, it may be composed of a HEPA filter of a grade capable of removing fine dust and/or ultrafine dust, and may be composed of a filter module further including a pre-filter, a deodorizing filter, and an antibacterial filter, if necessary.

In addition, as will be described later, the first heat storage heat exchanger 15 absorbs warm heat (winter season) or cold heat (summer) contained in the indoor air when exhausting indoor air (hereinafter referred to as'heat storage' and'cold storage'. It is preferable to be composed of a heat storage material capable of performing the process of discharging the absorbed hot 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 moisture contained in the indoor air when the indoor air is exhausted so that total heat exchange between the indoor air and the outdoor air can be performed (hereinafter, referred to as'humidification'). And, it is more preferable to be composed of a heat storage material capable of further performing the process of discharging the absorbed moisture to the outdoor air (hereinafter referred to as'moisture proof') when supplying the outdoor air. To this end, the heat storage material is It is more preferable to be made of a hygroscopic and/or porous ceramic material such as charcoal or clay, diatomaceous earth, and zeolite.

In the case of this embodiment, the heat storage material is composed of charcoal or ceramic material for total heat exchange between the indoor air and the outdoor air as described above, and the first heat storage heat exchanger 15 includes the above heat storage material plate It was configured 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 have a structure in which a flow path is formed inside a heat storage material having a rectangular parallelepiped shape, for example, a honeycomb structure.

In addition, as shown in Figs. 1 to 4, the lower module 20 includes a lower casing 21 having a substantially box shape, four lower supply and exhaust ports provided on each side of the lower casing 21, and the It includes four lower dampers provided in each of the lower supply and exhaust ports.

At this time, the four lower air supply and exhaust ports are respectively a second indoor supply port 22a and a second indoor exhaust port 22b provided on the indoor side, and a second outdoor supply port 22c and a second outdoor supply port 22c provided at the outdoor side, respectively. It is composed of an outdoor exhaust port 22d.

In addition, in response to this, the four lower dampers include a second indoor air supply damper 23a and a second indoor exhaust damper 23b provided on the indoor side, respectively, and a second outdoor air supply damper 23c provided on the outdoor side, respectively. And a second outdoor 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, and as described in the upper module 10, the lower damper can be opened and closed. It may be composed of a possible electric damper, and the second damper driving unit 23 is installed on one side of each of the lower supply and exhaust ports, and is configured as an electric motor that controls the opening and closing and/or opening by driving an electric damper installed in the supply and exhaust port. I can.

At this time, the height of the lower module 20 according to the present embodiment is provided to be approximately 1/2 the height of the upper module 10 as shown in FIG. 2 so that the product size of the entire ventilation device can be simplified. 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, temperature sensing to detect the temperature state of outdoor air and indoor air As an indoor temperature sensor 110 and an outdoor temperature sensor 120, as an air quality detection unit that detects the air quality of the outdoor air and indoor air, the indoor air quality sensor 130, the outdoor air quality sensor 140, and the memory 150 Include.

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

In addition, the temperature sensing units 110 and 120 and the air quality sensing units 130 and 140 may measure the indoor/outdoor air temperature or air quality within the indoor side of at least one of the upper casing 11 and the lower casing 21. And may be mounted on one side of the outdoor side, respectively.

The memory 150 is made of, for example, a nonvolatile memory, and the memory 150 contains information on the operation mode of the ventilation system including an indoor air exhaust mode, an outdoor air supply mode, and an indoor air cleaning mode. Is saved.

The control unit 100 includes information on various operation modes of the ventilation system system, such as an indoor air discharge mode, an outdoor air supply mode, and an indoor air cleaning mode stored in the memory 150 to maintain optimal indoor air, and the The operating states of the plurality of dampers and the first blowing 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 the present embodiment, as shown in FIG. 3, the first and second indoor air supply ports 12a and 22a and the first and second indoor air supply ports 12b and 22b adjacent to each other vertically are , The first and second outdoor air supply ports 12c and 22c, and the first to fourth damper covers 40a to 40d respectively covering the first and second outdoor exhaust ports 12d and 22d are provided with the upper casing 11 ) And provided on the outside of 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 first 4 An outdoor side air supply duct and an outdoor side exhaust duct, not shown, are respectively connected to the ends of the damper cover 40d.

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

5A is a view of an indoor air exhaust mode in which indoor air is discharged to the outside 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. to be.

In this case, the control unit 100 operates the first ventilation fan 16 while opening the first indoor exhaust damper 13b and the first outdoor exhaust damper 13d of the upper module 10 to operate the indoor 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 port to achieve simultaneous supply and exhaust, the mechanical type described above. It meets all the regulations of the law for ventilation systems.

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

In this case, the control unit 100 operates the first blower fan 16 while opening the first indoor air supply damper 13a and the first outdoor air supply damper 13c of the upper module 10 Mechanical ventilation described above by supplying air to 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 simultaneously supply and exhaust air. It meets all the regulations of the current legislation for the device.

In addition, as a result of the measurement by the temperature sensing units 110 and 120, the controller 100 is in the summer when the indoor temperature is low and the outdoor temperature is high, or the winter season when the indoor temperature is high and the outdoor temperature is low (that is, the temperature difference between the outdoor air and the indoor air is Large case) When the pollution degree of indoor air detected by the air quality sensor is high, the indoor air discharge mode and the outdoor air supply mode are alternately performed.

At this time, in the summer season, storage cooling and humidity storage of the first heat storage heat exchanger 16 is performed in the indoor air discharge mode, and cooling and moisture-proofing of the first heat storage heat exchanger 16 are performed in the outdoor air supply mode. Waste heat recovery is achieved.

In addition, even in the winter season, heat storage and humidity storage of the first heat storage heat exchanger 16 is performed in the indoor air discharge mode, and heat dissipation and moisture-proofing of the first heat storage heat exchanger 16 are performed in the outdoor air supply mode. Waste heat recovery is achieved.

In addition, in the winter season described above, since outdoor air having a low temperature is preheated and introduced into the room during the heat dissipation process, the first heat storage heat exchanger 16 performs the function of a preheater, and thus the ventilation system according to the present embodiment. Even if it does not have a separate preheater device, it meets all the regulations of the current laws and regulations for waste heat recovery ventilation system described above.

In addition, when the difference between the indoor temperature and the outdoor temperature is very large in 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, as necessary.

In this case, it is preferable that information on a temperature difference between indoor and outdoor air and a degree of pollution of the indoor air for performing the indoor air exhaust mode and the outdoor air supply mode are predetermined and stored in the memory unit 150.

In addition, the controller 100 determines the indoor air discharge mode or outdoor air by determining the indoor temperature, the outdoor temperature, and the pollution degree of the indoor air when the indoor air pollution is high in spring or autumn when there is little temperature difference between the indoor and outdoor air. Any one of the air supply modes may be selectively performed. For this purpose, it is preferable that the information on the temperature difference of the indoor and outdoor air and the degree of pollution of the indoor air are predetermined and stored in the memory unit 150.

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

In addition, in the case of the spring or autumn, since the two operation modes are not alternately performed, so that waste heat is not recovered and simultaneously supply and exhaust is performed, the ventilation system according to the present embodiment has a configuration related to the formation of a bypass flow path. Even if it is not provided separately, it still satisfies all the regulations of the current laws and regulations for the above-described waste heat recovery ventilation system.

Meanwhile, FIG. 5C is a diagram of an indoor air cleaning mode in which indoor air is circulated 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. to be.

The control unit 100 may perform the indoor air cleaning 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 indoor air supply damper 13a of the upper module 10 1 With the indoor exhaust damper 13b open, the first blowing fan 16 is operated to circulate indoor air into the room, and all of the dampers of the lower module 20 are kept closed.

In addition, although not shown in the drawings, in the case of the ventilation system according to the present embodiment, in a special situation where the pollution degree 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 the lower module 20 ), all dampers can also perform positive pressure mode to close.

In this case, the outdoor air passing through the air filter 15 is continuously supplied to the room, whereas the indoor air is not discharged, so that the indoor space is maintained at a positive pressure, thereby preventing external yellow dust or fine dust through the door gap or window gap. There is an advantage that can prevent the inflow of the indoor.

When performing any one of the indoor air discharge mode, the outdoor air supply mode, the indoor air cleaning mode, and the positive pressure mode described above, the control unit 100 controls the opening degree of various dampers as necessary according to the indoor/outdoor temperature and indoor/outdoor air pollution level. , The execution cycle (or time) of each operation mode, the amount of air blown by the first blowing fan, etc. may be differently controlled, and this is the same in the second embodiment to be 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 are assigned to the same configurations as those of the first embodiment described above, and duplicate descriptions will be omitted.

In the ventilation system according to the second embodiment of the present invention, as shown in FIG. 6, the main bodies 10, 50, and 30 are substantially box-shaped, and the upper module 10, the lower module 50, and the upper And a cover 30 that closes the module 10.

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

In addition, the lower module 50 includes a lower casing 51 substantially in a box shape, four lower supply and exhaust ports provided on each side of the lower casing 51, and four lower dampers provided at each of the lower supply and discharge ports. It consists of including.

At this time, the four lower air supply and exhaust ports are respectively a second indoor supply port 52a and a second indoor exhaust port 52b provided on the indoor side, and a second outdoor supply port 52c and a second provided at the outdoor side, respectively. It is composed of an outdoor exhaust port 52d.

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

In addition, the lower module 50, like the upper module 10, includes a plurality of second damper driving units 53 installed inside the lower casing 51, a second air filter 54, and a second heat storage heat exchanger ( 55) and a second blower fan 56, wherein the second damper driver 53, the second air filter 54, and the second heat storage heat exchanger 55 are described in the first Since it is the same as that described for the upper module 10 in the embodiment, a duplicate description will be omitted here.

In addition, in the present embodiment, the height of the lower module 50 is substantially the same as the height of the upper module 10, as shown in FIG. 6.

Next, a method for controlling the operation of the ventilation system 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 system according to the second embodiment of the present invention. It is an explanatory diagram.

7(a) is a first air supply and exhaust air supplying indoor air in the upper module 10 and supplying outdoor air to the interior in the lower module 50 in the operation mode of the ventilation system according to the present embodiment. It is a diagram of a mode (corresponding to the indoor air exhaust mode of the first embodiment).

In this case, the control unit 100 operates the first ventilation fan 16 while opening the first indoor exhaust damper 13b and the first outdoor exhaust damper 13d of the upper module 10 to operate the indoor The air is discharged to the outside, and the second air supply fan 56 is operated with the second indoor air supply damper 53a and the second outdoor air supply damper 53c of the lower module 50 open to remove outdoor air. By supplying air to the room and allowing simultaneous air supply and exhaust, it meets all the regulations of the mechanical ventilation system described above.

In addition, Figure 7 (b) is a second in the operation mode of the ventilation system according to the present embodiment, the upper module 10 supplies outdoor air to the room and the lower module 50 discharges the indoor air to the outside. It is a diagram of the supply and exhaust mode (corresponding to the outdoor air supply mode of the first embodiment).

In this case, the control unit 100 operates the first blower fan 16 while opening the first indoor air supply damper 13a and the first outdoor air supply damper 13c of the upper module 10 Air is supplied to the room, and the second ventilation fan 56 is operated with the second indoor exhaust damper 53b and the second outdoor exhaust damper 53d of the lower module 50 open to remove indoor air. By discharging to the outside and allowing simultaneous supply and exhaust, it meets all the regulations of the current regulations for mechanical ventilation systems described above.

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

At this time, in the summer season, storage cooling and humidity storage are performed in the first heat storage heat exchanger 16 of the upper module 10 in the first supply/exhaust mode, and cooling and humidity storage are performed in the second heat storage heat exchanger 56 of the lower module 50. Moisture-proof is achieved.

In addition, in the summer season, 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 the second heat storage heat exchanger 56 of the lower module 50 performs storage cooling and Congratulations take place.

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

In addition, even in the winter season, heat storage and moisture storage in the first heat storage heat exchanger 16 of the upper module 10 in the first supply and exhaust mode, and heat dissipation and moisture absorption in the second heat storage heat exchanger 56 of the lower module 50 are In the second supply/exhaust mode, heat dissipation and moisture absorption are performed in the first heat storage heat exchanger 16 of the upper module 10 and heat storage and moisture storage are performed in the second heat storage heat exchanger 56 of the lower module 50.

Accordingly, in the case of alternately performing the first supply/exhaust mode and the second supply/exhaust mode even in winter, in the case of the ventilation system according to the present embodiment, waste heat is recovered by total heat exchange.

In addition, in the winter season described above, outdoor air having a low temperature is preheated and introduced into the room during the heat dissipation process in the first supply/exhaust mode and the second supply/exhaust mode, so that the first heat storage heat exchanger 16 or As the second heat storage heat exchanger 56 performs the function of a preheater, the ventilation system according to the present embodiment satisfies all the regulations of the current regulations for the waste heat recovery type ventilation system described above even if a preheater is not separately provided. Will be ordered.

In addition, when the difference between the indoor temperature and the outdoor temperature is very large in summer or winter, the control unit 100 may set different operating cycles or times of the first supply/exhaust mode and the second supply/exhaust mode as necessary. have.

In addition, the control unit 100 determines the indoor temperature, the outdoor temperature, the indoor air pollution degree, and the pollution degree of the outdoor air when the indoor air pollution degree is high in spring or autumn when there is little difference in indoor and outdoor temperature. Either of the exhaust mode or the second air supply and exhaust mode may be selectively performed.

In this case, as described above, since both the first supply and exhaust modes are simultaneously supply and exhaust, the ventilation system according to the present embodiment conforms to the current regulations for mechanical ventilation, regardless of which operation mode is selected. All regulations are met.

In addition, in the case of the spring or autumn, since the two operation modes are not alternately performed, so that waste heat is not recovered and simultaneously supply and exhaust is performed, the ventilation system according to the present embodiment has a configuration related to the formation of a bypass flow path. Even if it is not provided separately, it still satisfies all the regulations of the current laws and regulations for the above-described waste heat recovery ventilation system.

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 in the operation mode of the ventilation system according to the present embodiment. It is a diagram of an indoor air cleaning mode in which indoor air is circulated while all are operating.

The control unit 100 may perform the indoor air cleaning mode when both indoor air and outdoor air pollution levels are high. In this case, the first indoor air supply damper 13a and the first indoor air supply damper 13a of the upper module 10 1 With the indoor exhaust damper 13b, the second indoor air supply damper 53a and the second indoor exhaust damper 53b of the lower module 50 open, the first blowing fan 16 and the second The blower fan 56 is operated to circulate indoor air into the room.

In this case, since both modules perform the indoor air cleaning mode, the ventilation system according to the present embodiment is very effective in cleaning air (that is, removing contamination of indoor air) compared to the total heat exchange type ventilation system according to the prior art. There is an advantage that it 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 where the pollution degree of outdoor air is very high due to yellow dust or fine dust, both the upper module 10 and the lower module 50 collect outdoor air indoors. It is also possible to perform a positive pressure mode for supplying air to.

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

When performing any one of the first supply/exhaust mode, the second supply/exhaust mode, the indoor air cleaning mode, and the positive pressure mode described above, the controller 100 may use various dampers according to the indoor/outdoor temperature and indoor/outdoor air pollution level. It is possible to control the opening degree of, the execution period (or time) of each operation mode, and the amount of air blown by the first and second blowing fans 16 and 56 differently.

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

Claims (11)

As a waste heat recovery type ventilation system capable of simultaneous supply and exhaust,
In order to supply and exhaust outdoor air and indoor air, 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 heat storage heat exchanger and a first 1 upper module provided with a blower fan;
It is coupled to the lower part of the upper module so as to be partitioned from the upper module, and to supply and exhaust the outdoor air and indoor air, a second indoor air supply damper, a second indoor exhaust damper, a second outdoor air supply damper, and a second outdoor air A lower module provided with an exhaust damper;
A temperature sensing unit that detects temperature conditions of the outdoor air and indoor air;
An air quality detector configured to detect pollution levels of the outdoor air and indoor air; And
A control unit for controlling an operating state of a damper provided in the upper module, a first blowing fan, and a damper provided in the lower module according to the sensing state in the temperature sensing unit and the air quality sensing unit,
The control unit uses an upper module capable of forced supply and exhaust by controlling the operation state of a damper and a blower fan, and a lower module capable of natural supply and exhaust by controlling the operation state of the damper. Perform at least one of the air cleaning mode and the positive pressure mode,
When performing the indoor air discharge mode in which indoor air is discharged to the outside, the first indoor exhaust damper and the first outdoor exhaust damper of the upper module are opened, and the first blowing fan is operated to reduce indoor air to the outside. At the same time, the second indoor air supply damper and the second outdoor air supply damper of the lower module are opened to supply outdoor air to the room,
When performing the outdoor air supply mode in which outdoor air is supplied indoors, the first indoor air supply damper and the first outdoor air supply damper of the upper module are opened, and the first blowing fan is operated to supply outdoor air indoors And discharging indoor air to the outside by simultaneously opening the second indoor exhaust damper and the second outdoor exhaust damper of the lower module. delete delete The method of claim 1,
When performing the indoor air cleaning mode for circulating indoor air, the control unit operates the first blowing fan while opening the first indoor air supply damper and the first indoor exhaust damper and closes the lower module. Waste heat recovery type ventilation system, characterized in that. The method of claim 4,
The control unit operates the first blowing fan while the first indoor air supply damper and the first outdoor air supply damper are open when performing a positive pressure mode in which indoor air is blocked from being discharged and outdoor air is supplied to the room. And closing the lower module. The method of claim 1,
The control unit alternately performs the indoor air discharge mode and the outdoor air supply mode when the pollution degree of the indoor air and the temperature difference between the outdoor air and the indoor air are respectively higher than a predetermined standard. The method of claim 1,
The control unit performs either the indoor air discharge mode or the outdoor air supply mode when the pollution degree of indoor air is higher than a predetermined standard and the temperature difference between outdoor air and indoor air is lower than a predetermined standard. Ventilation system. The method of claim 5,
The control unit performs one of the indoor air cleaning mode and the positive pressure mode when the indoor air pollution degree and the outdoor air pollution degree are higher than a predetermined standard, respectively. The method of claim 1,
The lower module further includes a second air filter, a second heat storage heat exchanger, and a second blowing fan,
The control unit further operates the second blower fan when performing the indoor air exhaust mode and the outdoor air supply mode. The method of claim 9,
When the control unit performs the indoor air cleaning mode for circulating indoor air, the first indoor air supply damper, the first indoor exhaust damper, the second indoor air supply damper, and the second indoor exhaust damper are opened. In the waste heat recovery type ventilation system, characterized in that operating the first blowing fan and the second blowing fan. The method of claim 9,
When performing the positive pressure mode of blocking the discharge of indoor air and supplying outdoor air to the room, the control unit is configured to: the first indoor air supply damper, the first outdoor air supply damper, the second indoor air supply damper, and the second outdoor air supply damper. A waste heat recovery ventilation system, characterized in that the first and second ventilation fans are operated while the side air supply damper is opened.

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