KR20130085675A - Central building ventilation device - Google Patents

Abstract

PURPOSE: A central ventilation system for a building is provided to reduce facility and management costs by connecting multiple individual air supply ducts to a main air supply duct and installing an air supply fan in the main air supply duct. CONSTITUTION: A central ventilation system for a building comprises diffusers (10), individual air supply ducts (20), a main air supply duct (30), an air supply fan (40), air supply dampers (50), and air supply controllers (60). The diffusers supply external air to the indoor space of a building (2). The individual air supply ducts are connected to the diffusers and are connected to the main air supply duct. The air supply fan is installed in the main air supply duct and sends air to the diffusers through the main air supply duct and the individual air supply ducts. The air supply dampers control the amount of the air supplied to the diffusers through the individual air supply ducts. The air supply controllers are installed in each household of the building and controls the amount of the supplied to the indoor space by controlling the air supply fan and one or more air supply dampers.

Description

Central Building Ventilation Device

The present invention relates to a building ventilation system, and more particularly to a central ventilation device suitable for application to a multi-storey common building, such as various buildings, especially apartments.

In general, a residential building is provided with a ventilation system to keep the indoor air fresh, and such a ventilation system is composed mainly of the air supply and exhaust.

The most traditional building ventilation system is simply to install a fan to provide outdoor air to the room and exhaust the air to the outside.

However, such simple indoor and outdoor air circulation is accompanied by energy loss due to the temperature difference between indoor and outdoor due to seasonal factors. In other words, when outdoor low-temperature air flows into the room in winter, the heating load is increased. On the contrary, when outdoor high-temperature air flows into the room in summer, the cooling load is increased. Cause increased usage.

Methods for reducing energy loss associated with building ventilation have been proposed, and one of the typical ones is to install a heat exchanger to recover heat from the exhaust by exchanging heat between the air including the waste heat exhausted from the interior and the outside air supplied to the interior. That's the way it is.

An object of the present invention is to provide a building ventilation apparatus suitable for application to a multi-storey common building represented by an apartment.

Another object of the present invention, with respect to the building ventilation device applied to a multi-storey common building, an air supply fan for supplying air to the room through a diffuser is not installed for each generation belonging to the common building, but in the center of the common building. It is to provide a central building ventilation device to control the air supply for each generation by installing the air supply fan of the central air supply fan.

Another object of the present invention relates to a building ventilation system applied to a multi-storey common building, using hoods installed in the kitchen and / or toilet to exhaust indoor air to the outside, and individually for each household hood. It is to provide a central building ventilation apparatus for controlling the exhaust from each generation by installing a single exhaust fan in the center of the common building without installing an exhaust fan.

Another object of the present invention, with respect to the building ventilation device applied to a multi-storey common building, energy supply due to ventilation by piping the individual air supply duct supplying the outside air to the diffuser in the room to exchange heat with the heat accumulated in the room To reduce the

According to the invention, there is provided a central ventilation device suitable for application to a multi-storey common building represented by an apartment.

The central building ventilation apparatus according to the present invention includes a diffuser, an individual air supply duct, a main air supply duct air supply fan, an air supply damper, and an air supply controller.

The diffuser is installed in each room belonging to the common building to supply the outside air to the room.

The individual air supply duct is connected to the diffuser and is piped from the indoor to the outdoor of each generation of the common building.

The main air supply duct is piped over the entire building, and the individual air supply ducts are connected.

The air supply fan is installed in the main air supply duct and blows air to the diffuser through the main air supply duct and the individual air supply duct.

The air supply damper controls the amount of air supplied to the diffuser through the individual air supply duct.

The air supply controller is installed in each generation of the public building, and controls at least one of the air supply fan and the air supply damper belonging to the household, thereby controlling the amount of air supplied to the room through the diffuser of the household.

Preferably the central building ventilation apparatus according to the present invention, the hood installed in at least one of the kitchen and toilet of each generation belonging to the common building; An individual exhaust duct connected to the hood and piped from the indoor to the outdoor of each generation of the common building; A main exhaust duct piped over the common building and to which the individual exhaust ducts are connected; A central exhaust fan installed at the main exhaust duct, for sucking air from the room to the hood through the main exhaust duct and the individual exhaust duct; An exhaust damper for controlling an amount of air exhausted from the room to the hood through the individual exhaust duct; And an exhaust controller installed in each generation of the public building and controlling at least one of the exhaust fan and the exhaust damper belonging to the household, thereby controlling the amount of air exhausted from the room through the hood of the household. .

Preferably, the individual air supply duct is piped to the outdoor of the joint building in a state buried along the concrete slab of the joint building, or piped to the outdoor of the joint building along the ceiling chamber of the public building, or the joint building The buried pipe under the heating pipe of the bottom mortar of the pipe is piped to the outdoor side of the building.

Preferably, the central building ventilation apparatus according to the present invention further includes a pressure sensor for detecting the air pressure in the main air supply duct, and controls the air supply fan to maintain a constant air pressure of the main air supply duct.

Preferably, the central building ventilation apparatus according to the present invention further comprises a pressure sensor for detecting the air pressure in the main exhaust duct, and controls the exhaust fan to maintain a constant air pressure of the main exhaust duct.

Preferably, the central building ventilation apparatus according to the present invention further comprises a heat exchanger installed between the exhaust fan and the air supply fan, wherein the heat exchanger is between the air exhausted from the exhaust fan and the air supplied to the air supply fan. To perform heat exchange.

Central building ventilation apparatus according to the present invention has the following effects.

First, instead of installing individual supply fans for individual supply ducts connected to multiple households belonging to a multi-storey common building, it is necessary to connect multiple individual supply ducts to the main supply doc and install one supply fan to the main supply doc. As a result, related facility costs and operation and management costs can be reduced.

Second, instead of installing exhaust fans individually for individual exhaust ducts piped to multiple generations belonging to a multi-storey common building, connect multiple individual exhaust ducts to the main exhaust duct and install one exhaust fan to the main exhaust duct. As a result, related facility costs and operation and management costs can be reduced.

Third, by connecting individual air supply duct to concrete slab, ceiling chamber, or floor mortar which is a heating pipe, the heat exchange between the heat accumulated in the room and the air supply passing through the individual air supply duct. By doing so, it is possible to reduce the energy loss caused by the ventilation of the room.

Fourth, the heat exchanger provided between the exhaust fan and the air supply fan performs heat exchange between the air exhausted from the exhaust fan and the air supplied to the air supply fan, thereby recovering the waste heat discharged from the room due to the ventilation.

1 is a schematic view of a joint building to which an exemplary central building ventilation apparatus according to the present invention is applied;
2 is a schematic view of a common building to which another exemplary central building ventilation apparatus according to the present invention is applied;
3 is a schematic view of a common building to which another exemplary central building ventilation apparatus according to the present invention is applied;
Figure 4 is a schematic diagram showing another example of the piping of the individual air supply doctor applied to the present invention,
Figure 5 is a schematic diagram showing another piping example of the individual air supply doctor applied to the present invention,
6 is a perspective view and a cross-sectional view of an exemplary individual air supply doc applied to the central building ventilation apparatus according to the present invention;
7 is a schematic view of an exemplary distributor applied to a central building ventilation apparatus according to the present invention;
8 is a plan view of a single generation to which the central building ventilation apparatus according to the present invention is applied.

Hereinafter, with reference to the accompanying drawings will be described in detail the central building ventilation apparatus according to the present invention. The following specific examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

Central building ventilation apparatus 1 according to the present invention, as shown in Figures 1 to 3, a multi-storey building in a multi-storey building, such as an apartment, the common building (multiple households share all or part of the floor, etc.) Ventilation system applied to 2).

Central building ventilation apparatus 1 according to the present invention, as shown in Figures 1 to 3, as an air supply device for supplying the outside air to the room, the diffuser 10, the individual air supply doctor 20, It includes a main air supply doctor 30, air supply fan 40, air supply damper 50 and air supply controller 60.

The diffuser 10 is an outlet for directly injecting the supplied air into the room, and one or more are installed at predetermined intervals in accordance with the area of the room in the room requiring the air supply, preferably on the ceiling 3 of the room. Is installed.

The diffuser 10 used in the present invention may be applied to a general diffuser widely applied to the air conditioner and the ventilation devices according to the present invention, and since the diffuser itself is not directly related to the features of the present invention, it is related to the diffuser itself. Detailed description will be omitted.

The individual air supply duct 20 is connected to the diffuser 10 of each generation, piped from the interior of each generation of the common building (2) to the outdoor, for each generation air supply for supplying air to the diffuser (10) It is an individual doc.

The individual air supply duct 20 may be piped in a state buried along the concrete slab 4 of the joint building 2 (see FIGS. 1 to 3), or may be piped along the ceiling chamber 5 of the public building 2. Or by embedding the pipe under the heating pipe 6a of the bottom mortar 6 of the common building 2 (see FIG. 5), the concrete slab 4, the ceiling chamber 5 or the floor mortar. It is preferable to reduce the energy loss due to the air supply by allowing heat exchange between the heat accumulated in (6) and the air supply passing through the individual air supply duct 20.

As shown in FIG. 1, when the individual air supply duct 20 is embedded in the concrete slab 4, the individual air supply duct 20 is horizontally elongated in a state of being embedded in the horizontal concrete slab 4 The diffuser 10 is installed at one side of the individual air supply doc 20 at a predetermined interval, and the other side of the individual air supply doc 20 is connected to the main air supply doc 30 to be described later.

The embedding of the individual air supply duct 20 in the concrete slab 4 is carried out after the individual air supply duct 20 is piped to the designed position when the concrete slab 4 which is the foundation in the process of constructing the joint building is poured. This can be achieved by pouring concrete. Of course, when the building is constructed by a prefabricated method, when manufacturing the concrete block for assembly can be realized by piping the individual air supply doctor 20 in advance and manufacturing the block.

In the multi-storey common building (2), the concrete slab (4), which is placed between floors, is used as the floor for the upper generation and at the same time as the ceiling for the lower generation. Therefore, the temperature of the concrete slab 4 is affected by the room temperature of the upper and lower generations. That is, in general, the temperature of the concrete slab 4 is formed higher than the outdoor temperature in the winter season and lower than the outdoor temperature in the summer season.

According to the heat storage state of the aspect different from the outside of the concrete slab 4, in the process of moving the air along the individual air supply doc 20 embedded in the concrete slab 4, the cold outside air in the winter season is relatively The heat is increased by heat exchange with the concrete slab (4) of high temperature, the temperature is lowered by heat exchange with the concrete slab (4) of the relatively low temperature in summer, supplying the outside air for ventilation The energy loss due to doing so can be reduced.

In the embodiment of Fig. 1, in the case of generation A, the individual air supply doc 20 is embedded in the concrete slabs 4 and 4a on the ceiling 3 side, and a diffuser 10 is directly installed therein to the interior of generation A. Since the air is supplied to the outside air, the concrete slab 4a is surrounded by the generation B and the generation A and both sides of the upper and lower sides, so that the heat storage state is relatively good. great.

However, in the case of generation B, which is the uppermost floor, the individual air supply doc 20 is buried in the concrete slabs 4 and 4b on the ceiling 3 side, and a diffuser 10 is directly installed there to supply air to the interior of household B. The bottom of the concrete slabs 4 and 4b is surrounded by generation B, but since there is no generation above the concrete slabs 4 and 4b, the heat storage state of the concrete slabs 4 and 4b may be relatively insufficient. Therefore, heat exchange with the air supply passing through the individual air supply doctor 20 may be relatively insufficient.

In consideration of this situation, the individual air supply doctor 20 can be piped as shown in the embodiment shown in FIG. That is, referring to FIG. 2, in the case of generation D, which is the uppermost floor, the air supply duct 20 extends along the side wall 7 to the ceiling chamber 5 in the state of embedding the concrete slabs 4 and 4d at the bottom side. The concrete slab 4d is surrounded up and down by the generation D and the generation C, and the heat storage is relatively good because the diffuser 10 is installed on the ceiling 3 to supply air to the interior of the generation D. In addition, since the individual air supply duct 20 extends along the side wall 7 and the ceiling chamber 5, the heat exchange with the air supply passing through the individual air supply duct 20 is excellent.

As shown in FIG. 4, when the individual air supply duct 20 is piped into the ceiling chamber 5, similarly to the concrete slab 4, the internal air of the ceiling chamber 5 and the air supply of the individual air supply doc 20 are provided. Heat exchange occurs between the energy loss due to the air supply to the room can be reduced.

In addition, as shown in FIG. 5, when the individual air supply duct 20 is buried under the heating pipe 6a of the bottom mortar 6, the heat storage 6 is accumulated in the bottom mortar 6, similarly to the concrete slab 4. Heat exchange occurs between the supplied heat and the air supply of the individual air supply doc 20, it is possible to reduce the energy loss due to supplying air to the room. The bottom mortar 6 of FIG. 5 is generally a multilayer structure including a cushioning material, (bubble) mortar, a finishing material (floor material), etc., but in the present invention, all of them are referred to as a bottom mortar 6 for simplicity of explanation. do.

From the viewpoint of reducing energy loss due to ventilation through heat exchange between the air passing through the individual air supply duct 20 and the surrounding environment (concrete slab, ceiling panel, floor mortar) in which the individual air supply duct 20 is installed, the individual air supply duct It is preferable that (20) has high thermal conductivity.

Considering only the thermal conductivity, it may be desirable to manufacture the individual air supply doc 20 with a high thermal conductivity metal material, but since the metal material is relatively high in price and vulnerable to corrosion, it is relatively inexpensive and resistant to corrosion even though the thermal conductivity is somewhat low. Synthetic resin duct (tube) such as can be used as individual supply duct (20).

In particular, as the individual air supply duct 20, as shown in Figure 6, when applying a tube in which a plurality of heat radiation fins 21 are formed from the inner circumferential surface toward the center, while applying a synthetic resin duct of lower thermal conductivity than metal It is possible to secure the thermal conductivity of the degree.

The main air supply duct 30 is a duct that is piped throughout the joint building (2), the individual air supply duct 20 is connected. That is, the individual air supply doctors 20 installed in each generation are collected and connected to the main air supply doctor 30.

For example, the main air supply doctor 30 may be vertically piped along the sidewalls of the common building 2 over the entire floor, and an air supply fan 40 described later on the upper end (eg, a rooftop) of the main air supply doctor 30. ) Is installed.

1 to 5, a branch pipe 31 is formed for each layer (generation) on the main air supply doctor 30, and each branch supply pipe (generation) of the corresponding layer (generation) is formed on each branch pipe (31). By connecting the 20, it is possible to connect the main air supply doctor 30 and the individual air supply doctor (20).

The air supply fan 40 is a blower installed in the main air supply duct 30 and blows outside air to the main air supply duct 30. When the air supply fan 40 is operated, outside air is supplied to the main air supply doc 30, and consequently, air is supplied to the diffuser 10 of each generation through the individual air supply duct 20 of each generation connected to the main air supply doc 30. Will be supplied.

That is, in the central building ventilation apparatus 1 according to the present invention, one common air supply fan 40 is installed in the center, and all generations of the joint building 2 share the common air supply fan 40 jointly. It is a system.

In this case, sharing the air supply fan 40 does not mean installing only one air supply fan in the common building 2, and even if two or more air supply fans are installed, each air supply fan is more than 2 generations. Of course, this also includes the use of multiple generations of air supply. 1 and 2 illustrate an example in which one air supply fan 40 is installed in the entire joint building so that all generations of the public building 2 jointly use one air supply fan 30. .

The air supply damper 50 is an air flow rate control valve for controlling the air amount supplied to the diffuser 10 through the individual air supply ducts 20. As illustrated, the air supply damper 50 may be installed at, for example, a connection portion between the main air supply doc 30 and the individual air supply doc 20, and the installation position of the air supply damper 50 is supplied to the diffuser 10. The position where the air volume can be adjusted is not particularly limited.

As the air supply damper 40 to be applied to the present invention, for example, an actuator such as a motor is mounted on the air control plate, and the amount of air supply passing through the individual air supply doctor 20 through the air supply controller 60 to be described later is remotely indoors. An electric damper that can be controlled is preferable. Dampers are also well known in the art, so a detailed description thereof is omitted.

As illustrated in FIGS. 7 and 8, a plurality of individual air supply doctors 20 may be piped in each generation, rather than one, and the branch pipe 31 may be installed by installing a distributor 80 in the branch pipe 31. It is possible to make the outside air evenly distributed to the individual air supply ducts 20 downstream of 31). The dispenser 80 applied to the present invention may also be applied to the present invention, which is a distributor known in the art.

1 to 3 and the like, the air supply damper 50 is installed in the branch pipe 31 to collectively supply the air supply to the plurality of individual air supply doctors 20 subsequent to the branch pipe 31. Although the air supply damper 50 is installed in each individual air supply duct 20 downstream of the distributor 80, the air supply amount may be adjusted individually for each individual air supply doc 20. .

The air supply controller 60 is installed indoors to control the air supply fan 40 and / or air supply damper 50, so that the amount of air supplied through each generation of the diffuser 10 can be adjusted according to the user's intention. It is a control unit.

Since the air amount supplied through the diffuser 10 depends on the opening and closing state of the air supply damper 50 and the operation and rotation speed of the air supply fan 40, the air supply controller 60 supplies the air supply fan 40 and the air supply damper 50. ) To control at least one. That is, the control of the air supply amount through the diffuser 10 of each generation, the opening and closing amount of the air supply damper 50 installed in the branch pipe 31 or the individual air supply doctor 20 of the generation, or the air supply fan 40 Control the rotation of the control panel or both.

8 is a diagram schematically illustrating the installation of the air supply controller 60 on one side wall of the room, and the air supply controller 60 connected to the air supply fan 40 and / or the air supply damper 50 by wire or wireless (not shown). By operating, the air supply fan 40 and / or the air supply damper 50 are adjusted.

Since the present invention is a system in which one air supply fan 40 is shared by multiple generations, it is necessary to operate the air supply fan 40 in accordance with the total use air supply of all generations belonging to one air supply fan 40.

To this end, the central building ventilation apparatus 1 of the present invention may include a pressure sensor 70 for detecting the air pressure in the main air supply doctor 30, and the air supply fan 40 may signal from the pressure sensor 70. Receive the main air supply to operate the air pressure of the doctor 30 is kept constant.

Specifically, the main air supply duct 30 and the plurality of individual air supply ducts 20 connected thereto form a single closed space as a whole, and the air pressure of the closed space increases the total use air supply of the households to which they belong. If the lowering and the air blowing amount of the air supply fan 40 is increased.

Therefore, when the air pressure of the main air supply doctor 30 is measured, it is possible to grasp the balance state of the air flow of the air supply fan 40 and the total air supply of the households to which the generation belongs, and the air pressure measured by the pressure sensor 70 is determined. If it is lower than the reference pressure, the total supply air supply of all generations is increased, so the air supply fan 40 is operated (or increased power) to increase the air pressure to the reference pressure, and if the measured air pressure is higher than the reference pressure, Since the supply air amount is not present or reduced, the air supply fan 40 is stopped (or reduced power) to maintain the air pressure as the reference pressure.

In this way, as the overall control of the air supply by the central building ventilation device 1 of the present invention based on the air pressure of the main air supply doctor 30 measured by the pressure sensor 70, each generation of the diffuser 10 Through this, the outside air can be supplied uniformly.

The ventilation of the building requires the exhaust along with the air supply. The air supply of the central building ventilation device 1 according to the present invention includes the diffuser 10, the individual air supply doc 20, and the main air supply doc 30. The air supply unit including the air supply fan 40, the air supply damper 50, and the air supply controller 60 is applied, but the exhaust device for discharging the indoor air to the outside is a natural exhaust through the door or door opening, a ventilation hole of the toilet. Like exhaust through, various conventional exhausts may be applied.

Preferably, the exhaust device applied to the central building ventilation apparatus 1 according to the present invention, the hood 110, the individual exhaust duct 120, the main exhaust duct 130, exhaust fan 140, exhaust damper ( 150 and an exhaust controller 160.

The hood 110 is generally installed in the kitchen 8 of each generation, and hoods (see FIGS. 1 and 2) for discharging various smells and smoke generated in the cooking process to the outside and the toilets of each generation ( 9) at least one of the hoods (see Fig. 3) for discharging the odor of the toilet to the outside, the configuration corresponding to the above-described diffuser 10 of the air supply apparatus, in the present invention the hood 110 Applies to some components of the exhaust system for ventilation.

Unlike a general hood, the hood 110 applied to the present invention does not have an exhaust fan on its own, which will be described later.

The individual exhaust duct 120 is an individual duct for each generation of exhaust for discharging the indoor air introduced through the hood 110 to the outside, and is connected to the hood 110 of each generation, and the The pipe is piped from the indoor (kitchen or restroom) of each generation to the outdoor, and corresponds to the individual air supply doc 20 of the air supply device described above.

Unlike the individual air supply duct 20 of the air supply device, since the individual air exhaust duct 120 of the exhaust device does not necessarily need to use heat storage, there is no need for a heat exchange pipe such as a landfill pipe to the concrete slab 4, and the piping to the outside If enough.

The main pipe duct 130, the configuration corresponding to the main air supply duct 30, is piped over the entire joint building (2), the individual exhaust duct 120 installed in each generation is the main exhaust duct 130 Is connected to.

The main exhaust duct 130 can also be vertically piped along the sidewalls of the common building 2 over the entire floor, and an exhaust fan 140 to be described later is installed at an upper end (eg, a rooftop) of the main exhaust duct 130. .

As illustrated in FIGS. 1 to 3, a branch pipe 131 is formed for each layer (generation) on the main exhaust duct 130, and individual exhaust ducts of the corresponding layer (generation) are formed on each branch pipe 131. By connecting the 120, the main exhaust duct 130 and the individual exhaust duct 120 can be connected.

The exhaust fan 140 is a configuration corresponding to the air supply fan 40 of the air supply device, is installed in the main exhaust duct 130, the hood from the room through the main exhaust duct 130 and the individual exhaust duct 120 A central intake fan that sucks air at 110.

Therefore, when the exhaust fan 140 is operated, a negative pressure is generated in the main exhaust duct 130, and as a result, the hood 110 of each generation through the individual exhaust duct 120 of each generation connected to the main exhaust duct 130. Through the air in the room is sucked and discharged to the outside.

That is, in the central building ventilation apparatus 1 according to the present invention, instead of providing an exhaust fan for each hood 110 of each generation, a common exhaust fan 140 is installed in the center and the common building 2 All generations of) are a system using a common exhaust fan 40 in common.

Of course, the common use of the exhaust fan 140 does not only mean that one exhaust fan is installed in a common building, and even if two or more exhaust fans are installed, each exhaust fan is a plurality of generations of two or more generations. Of course, it also includes the case of joint use in the exhaust. 1 to 3 is an example in which one exhaust fan 140 is installed in the whole building so that all generations of the building 2 can share the same exhaust fan 130. .

The exhaust damper 150 is a configuration corresponding to the air supply damper 50 of the air supply device, and is an air flow rate control valve for controlling the amount of air exhausted from the room to the hood 110 through the individual exhaust duct 120. As illustrated, the exhaust damper 150 may be installed at an appropriate position of the individual exhaust duct 120, and the exhaust damper 140 may also use a damper having the same structure as the air supply damper 40.

In general, several individual air supply ducts 20 are generally piped in each generation, but one hood 110 is generally installed. Therefore, only one individual exhaust duct 120 is required for each generation. Therefore, the structure corresponding to the distributor 80 applied to the air supply device is unnecessary for the exhaust device, but in the case of households having two or more kitchens or toilets, the distributor may be installed in the branch pipe 131.

The exhaust controller 160 is a configuration corresponding to the air supply controller 60 of the air supply device, and is installed in each generation of the public building 2, and the exhaust damper 150 and the exhaust fan 140 belonging to the generation. By controlling the control unit for controlling the amount of air exhausted from the room through the hood 110 of the household.

Since the amount of air exhausted through the hood 110 depends on the open / closed state of the exhaust damper 150 and the operation and rotation speed of the exhaust fan 140, the exhaust controller 160 includes the exhaust fan 140 and the exhaust damper 150. ) To control at least one. That is, the adjustment of the displacement through the hood 110 of the household in each generation, by adjusting the opening and closing amount of the exhaust damper 150 installed in the individual exhaust duct 120 of the household, or the rotation of the exhaust fan 140 Can be controlled or controlled by both.

In the above description of the present invention, the air supply controller 60 of the air supply device and the exhaust controller 160 of the air exhaust device are described as separate independent controllers. ) Can be integrated into one controller.

In the present invention, since the exhaust fan 140 is a common system for multiple generations, like the air supply fan 40, the exhaust fan 140 is operated in accordance with the total use displacement of all generations belonging to one exhaust fan 140. I need to.

To this end, the central building ventilation device 1 of the present invention, like the air supply device described above, may include a pressure sensor 170 for detecting the air pressure in the main exhaust duct 130, the exhaust fan 140 The signal from the pressure sensor 170 may be operated to maintain a constant air pressure of the main exhaust duct 130.

That is, when the air pressure (negative pressure) of the main exhaust duct 130 is measured, it is possible to grasp the balance state between the intake amount of the exhaust fan 140 and the total used exhaust amount of the generations to which the exhaust fan 140 is measured. If the air pressure is higher than the predetermined reference pressure, the total used exhaust capacity of all generations is increased, so the exhaust fan 140 is operated (or increased power) to lower the air pressure to the reference pressure, and if the measured air pressure is lower than the reference pressure, the total generation Since the total air supply amount of the air is not present or reduced, the exhaust fan 140 is stopped (or reduced power) to maintain the air pressure as the reference pressure.

As such, as the overall control of the air pressure exhausted by the central building ventilation device 1 of the present invention based on the air pressure of the main exhaust duct 130 measured by the pressure sensor 170, each generation of hood 110 Exhaust air in the room.

The central building ventilation apparatus 1 according to the present invention further includes a heat exchanger 200 installed between the exhaust fan 140 and the air supply fan 40, as shown in FIG. 2. The heat exchanger 200 is connected to the air supply fan 40 and the exhaust fan 140 through connection ducts 210 and 220, respectively.

The heat exchanger 200 applied to the present invention exchanges heat between the relatively high temperature exhausted by the exhaust fan 140 and the relatively low temperature air supplied by the air supply fan 40 in winter. While increasing the temperature of the air supply, heat exchange between the relatively low temperature exhausted by the exhaust fan 140 in the summer and the relatively high temperature air supplied by the air supply fan 40 to lower the temperature of the air supply. Thus, by recovering the waste heat contained in the exhaust discharged during the ventilation process it is possible to further reduce the energy loss due to the ventilation of the common building. The heat exchanger 200 may apply a heat exchanger well known in the art to the present invention.

In the above description, the control of the air supply fan 40 and the exhaust fan 140 and / or the air supply damper 50 and the exhaust damper 150 by the controllers 60 and 160, the main air supply doctor 30 and the main exhaust The control of the air supply fan 40 and the exhaust fan 140 by the pressure sensors 70 and 170 of the doc 130 can be realized by establishing a control technique well known in the related art in accordance with the present invention. Since the details of the method itself are not directly related to the present invention, description thereof is omitted.

1: central building ventilation apparatus of the present invention 2: building
3: ceiling 4: concrete slab
5: ceiling chamber 6: floor mortar
6a: heating piping 7: side wall
8: kitchen 9: toilet
10: Diffuser 20: Individual Supply Doctor
21: heat dissipation fin 30: main air supply doctor
40: supply fan 50: supply damper
60, 160: controller 70, 170: pressure sensor
110: hood 120: individual exhaust duct
130: main exhaust doctor 140: exhaust fan
150: exhaust damper 200: heat exchanger

Claims (6)

A diffuser 10 installed in each indoor unit belonging to the common building 2 to supply external air to the indoor unit;
An individual air supply pipe 20 connected to the diffuser 10 and piped from the indoor to the outdoor of each generation of the common building 2;
A main air supply pipe 30 connected to the whole of the joint building 2 and to which the individual air supply pipes 20 are connected;
A central air supply fan 40 installed in the main air supply doc 30 and blowing air to the diffuser 10 through the main air supply doc 30 and the individual air supply doc 20;
An air supply damper 50 for adjusting the air amount supplied to the diffuser 10 through the individual air supply doctor 20; And
Installed in each generation of the public building (2), by controlling at least one of the air supply fan 40 and the air supply damper 50 belonging to the household, through the diffuser 10 of the household to the room An air supply controller 60 for controlling the amount of air supplied;
Characterized in that it comprises a, central building ventilation apparatus. The method of claim 1,
A hood (110) installed in at least one of the kitchen (8) and the bathroom (9) of each household belonging to the common building (2);
An individual exhaust duct (120) connected to the hood (110) and piped from the indoor to the outdoor of each generation of the common building (2);
A main exhaust pipe 130 connected to the entire joint building 2 and to which the individual exhaust pipes 120 are connected;
A central exhaust fan 140 installed at the main exhaust duct 130 and sucking air from the room to the hood 110 through the main exhaust duct 130 and the individual exhaust duct 120;
Exhaust damper 150 for controlling the amount of air exhausted to the hood 110 from the room through the individual exhaust duct 120; And
Installed in each generation of the public building (2), by controlling at least one of the exhaust fan 140 and the exhaust damper 150 belonging to the household, from the room through the hood 110 of the household An exhaust controller 160 that controls the amount of exhausted air;
The central building ventilation apparatus further comprises. The method according to claim 1 or 2,
The individual air supply duct 20 is piped along the concrete slab 4 of the joint building 2 to the outdoor side of the joint building 2, or the ceiling chamber 5 of the public building (2) Or piped under the heating pipe 6a of the bottom mortar 6 of the common building 2 to be piped to the outdoor side of the common building 2 along the Central building ventilation apparatus. The method according to claim 1 or 2,
Further comprising a pressure sensor 70 for detecting the air pressure in the main air supply doctor 30, characterized in that for controlling the air supply fan 40 to maintain a constant air pressure of the main air supply doctor 30, Central building ventilation. The method of claim 2,
Further comprising a pressure sensor 170 for detecting the air pressure in the main exhaust duct 130, characterized in that for controlling the exhaust fan 140 to maintain a constant air pressure of the main exhaust duct 130, Central building ventilation. 6. The method according to claim 2 or 5,
Further comprising a heat exchanger 200 installed between the exhaust fan 140 and the air supply fan 40, the heat exchanger 200 is the air exhausted from the exhaust fan 140 and the air supply fan 40 The central building ventilation apparatus, characterized in that for performing heat exchange between the air supplied to).

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