KR200388991Y1 - A ventilating and heat-exchanging device for building - Google Patents

Abstract

The present invention relates to a ventilation heat recovery device for a multi-generational building, to discharge the polluted indoor air in a multi-family residential / office building to the outside to keep the indoor air clean, and to recover the waste heat (indoor air heat) discharged to the outside. It is intended to maintain the indoor temperature without additional operation of the air conditioner by supplying the incoming outdoor air.

Ventilation heat recovery device for a multi-generational building according to the present invention is arranged along the interior space of the building, the inlet 11 and the outlet 12 for discharging the indoor air is provided with the indoor space, the indoor air to the outside A discharge duct 10 for guiding discharge; An inlet duct 20 arranged along the indoor space and having an outlet 21 communicating with the indoor space and an inlet 22 for inflowing outdoor air to guide the outdoor air into the room; A discharge fan (30) / inlet fan (40) mounted in the discharge duct and the inlet duct, respectively for forcibly discharging / inflowing air; In addition, the compressor 51 compresses the heat exchange medium at a high temperature and high pressure, and is mounted on the discharge port, and the heat exchange medium compressed by the compressor is circulated therein to exchange heat with indoor air discharged through the discharge hole through the heat exchange medium. A first heat exchanger (52), an expansion valve (53) for decompressing the heat exchange medium passing through the first heat exchanger, and a heat exchange medium mounted on the inlet and depressurized by the expansion valve therein to circulate the first heat exchanger. The second heat exchanger 54 and the flow of the heat exchange medium for controlling the temperature of the outdoor air to the temperature of the indoor air by heat exchange with the outdoor air introduced through the inlet through the heat exchange medium heat exchanged with the indoor air through the air It consists of a four-way valve 55 to discharge the indoor / outdoor air by the discharge fan / inlet fan when the indoor air discharged through the heat exchange medium Heat recovery means (50) for maintaining the indoor temperature while removing indoor odors by recovering heat from the air and supplying it to the introduced outdoor air; And, it comprises a controller for controlling the operation of the discharge fan, inlet fan and heat recovery means.

Description

A ventilating and heat-exchanging device for building}

The present invention is used in buildings with a large number of indoor spaces such as apartments, multi-family homes, and office buildings, and keeps the indoor temperature at an appropriate temperature without unnecessary operation of air conditioners while keeping all indoor air clean. A ventilation heat recovery device for a building.

Ventilation converts indoor polluted air into comfortable air, which changes its state due to human activities, combustion of fuel, and generation of harmful substances. The cleanliness of the air is judged by thermal conditions such as temperature and humidity, airflow conditions such as wind speed and wind direction, concentrations and odors of dust, carbon dioxide, carbon monoxide, nitrogen oxides, bacteria, and other harmful substances. Is called. The aim is to improve the air environment to meet human health and activities, to meet the needs of the thermal environment, and to preserve buildings and goods.

Ventilation methods include mechanical ventilation by blowers and ventilation fans, and natural ventilation by wind and buoyancy.

Among the ventilation methods described above, a ventilation fan is widely used. For example, indoors of restaurants have bad odors such as combustion gas and meat grilling odors generated when grilling meat. These odors can cause discomfort to indoor passengers, and can vent polluted indoor air to the outside. It is installed on the wall, ceiling or the like of this room.

According to the above ventilation fan, the indoor air contaminated by the ventilation fan is forcibly discharged to the outside to keep the room clean. And, the outdoor air flows into the door or window gap when the door is opened.

However, according to the prior art ventilation apparatus including a ventilation fan has the following problems.

When indoor air is discharged, both air and heat are exhausted. That is, since the heat of the indoor air is discharged along with the odor, in order to maintain the temperature of the indoor air at a proper temperature, the boiler or the air conditioner must be continuously driven, thereby causing waste of power. Specifically, since the outdoor air introduced from the outside is not maintained at an appropriate temperature by a boiler or an air conditioner, when the outdoor air enters the room, the temperature of the indoor air rises above the appropriate temperature in the summer, and the indoor air in the winter. The temperature is lower than the proper temperature and the unpleasant feeling of the temperature change is felt. Therefore, in order to keep the indoor temperature at a proper temperature, the boiler must be operated continuously in winter to raise the temperature of the indoor air, and in summer, the air conditioner must be continuously operated to lower the temperature of the indoor air. There is a problem that the maintenance cost is increased.

In order to solve this problem, techniques have been proposed to heat the indoor air and outdoor air to prevent a sudden temperature change when the outdoor air is introduced and to reduce the load of the air conditioner.

This prior art is generally provided with a total heat exchanger having a honeycomb flow path of indoor air and outdoor air, thereby controlling the temperature of the outdoor air by allowing the indoor air and outdoor air to flow along each flow path. In the prior art as described above, heat is exchanged between indoor air and outdoor air by conducting heat from indoor air passing through the flow path of the total heat exchanger to the outdoor air, but the heat exchanger simply passes the flow path between the indoor air and the outdoor air. Since the efficiency is lowered, the discomfort remains when the outdoor air is introduced, and there is a limit in reducing the load of the air conditioner.

In particular, in the case of apartments, multi-family homes, and office buildings in which multiple households reside, there are disadvantages in that the load of air conditioners increases due to ventilation of all indoor spaces.

The present invention is to solve the above-mentioned conventional problems, to keep the air in a plurality of indoor space clean, by using the waste heat of the discharged indoor air to compensate the temperature of the outdoor air introduced into the temperature level of the indoor air The purpose of the present invention is to provide a ventilation heat recovery device for a multi-generational building that can reduce the load of the building and eliminate the discomfort caused by the temperature change.

Ventilation heat recovery device for a multi-generational building according to the present invention for achieving the object as described above, is arranged along the interior space of the building and provided with an inlet port, the exhaust port for discharging the indoor air is in communication with the indoor space, A discharge duct for guiding the discharge to the outside; An inlet duct arranged along the indoor space and provided with an outlet for communicating with the indoor space and an inlet for inflowing outdoor air to guide the outdoor air into the room; A discharge fan / inlet fan mounted in the discharge duct and the inlet duct, respectively for forcibly discharging / inflowing air; Heat recovery means heat recovery means for recovering heat of indoor air discharged through the discharge duct and applying the outdoor air introduced through the inlet duct; And, it characterized in that it comprises a controller for controlling the operation of the discharge fan, inlet fan and heat recovery means.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms or words used in the present specification and claims are defined in the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to best describe his or her own design. It must be interpreted to mean meanings and concepts.

<Example 1>

As shown in Figures 1 and 2, the ventilation heat recovery apparatus for a multi-generational building according to the present embodiment is contaminated in a building (office, apartment, multi-family house, etc.) having a plurality of independent indoors (office space, residential space, etc.). The indoor air is discharged and fresh outdoor air is introduced. In particular, when the indoor air is discharged, the indoor air of the building 1 can be eliminated by recovering the heat of the indoor air and giving it to the outdoor air. Exhaust duct 10 communicating with the indoor air to guide the discharge of indoor air, and an inlet duct communicating with the indoor spaces 1a of the building 1 to guide the outdoor air to enter the indoor space 1a. ), A discharge fan 30 / inlet fan 40 installed in the discharge duct 10 and the inlet duct 20 so as to forcibly discharge / inflow the indoor air and the outdoor air, respectively, and the discharge Polluted by heat exchange with the indoor air discharged through the duct (10) Including only the heat recovery means (heat recovery cycle) 50 for discharging the indoor air and supplying the heat exchanged from the indoor air to the outdoor air introduced through the inlet duct 20 to maintain the temperature of the outdoor air at the temperature of the indoor air; It is composed.

The discharge duct 10 and the inlet duct 20 are arranged along the indoor space 1a in a state capable of smoothly discharging the indoor air and the inflow of the outdoor air, and as shown in FIG. 1, the discharge duct ( 10 is one or more inlet 11 is formed in communication with each of the interior space (1a) on the way, one side is formed with an outlet 12 in communication with the outdoors.

The inlet duct 20 has one or more outlets 21 communicating with the respective indoor spaces 1a on the way, and an inlet 22 communicating with the outdoors is formed at one side.

As shown in Figure 2, the heat recovery means 50, the heat exchange medium phase change by the heat of the polluted indoor air discharged to exchange heat with the clean outdoor air introduced, the low temperature / low pressure gas heat exchange medium is a high temperature / high pressure A first heat exchanger 52 and a first heat exchanger 52 mounted in the compressor 51 and the discharge duct 10 to heat the heat exchange medium having passed through the compressor 51 with the indoor air. Expansion valve 53 for reducing the phase-change heat exchange medium while passing through, the second heat exchanger (54) mounted inside the inlet duct (20) and allowing the heat exchange medium passing through the expansion valve 53 to exchange heat with outdoor air. It is configured by. Here, since the compressor 51 and the expansion valve 53 are not directly related to the heat exchange of indoor / outdoor air, the compressor 51 and the expansion valve 53 are installed outside the ducts 10 and 20 so as not to disturb the flow of air. 52 and 54 are disposed in the discharge duct 10 through which indoor air is discharged and the inlet duct 20 through which outdoor air is introduced.

The first and second heat exchangers 52 and 54 may include a plurality of heat dissipation fins 52b and 54b coupled to the tubes 52a and 54a through which the heat exchange medium flows and the tubes 52a and 54a.

As illustrated in FIGS. 1 and 2, the first and second heat exchangers 52 and 54 may have different positions depending on the structure of the discharge duct 10 and the inlet duct 20.

The heat recovery means is further provided with a four-way valve 55 for controlling the flow of the heat exchange medium so that both the winter operating the boiler and the summer operating the air conditioner can be used. According to the four-way valve 55, in the winter, the heat exchange medium of the compressor 51-the second heat exchanger (condenser) 54-the expansion valve 53-the first heat exchanger (evaporator) 52-of the compressor 51 The hot air is circulated to the route to recover heat from the hot air and supplied to the cold outdoor air. On the contrary, in the summer, the heat exchange medium is supplied to the compressor (51)-the first heat exchanger (condenser)-the expansion valve (53). The second heat exchanger (evaporator) 54-circulates to the root of the compressor 51 to take heat from the low temperature indoor air and supply it to the high temperature outdoor air.

The discharge fan 30, the inlet fan 40, and the heat recovery means may be operated on or off through a single switch, and each switch (not shown) may be driven by a difference between an indoor temperature and an outdoor temperature. May be operated independently. If there is little difference between the indoor temperature and the outdoor temperature, there is no need to adjust the temperature of the outdoor air by recovering the heat of the indoor air, but since the odor must be removed, the heat recovery means does not operate and the discharge fan 30 / inflow This is because the fan 40 must be operated.

As shown in FIG. 3, the inlets 11 and the outlets 21 of the inlet duct 20 and the grills 13 and 23 for opening and closing the inlet 11 and the outlet 21, respectively, are adjusted. Are mounted respectively.

In addition, it is preferable that the filter 24 is provided at the outlet 21 or the inlet 22 of the inlet duct 20 so that foreign substances such as dust included in the outdoor air are not introduced into the room when the outdoor air is introduced.

Ventilation heat recovery apparatus according to this embodiment controls the operation of the discharge fan 30, the inlet fan 40, the heat recovery means 50, the grill (13, 23) by a controller (not shown).

The operation by the central ventilation heat recovery device for a building according to the present embodiment configured as described above will be described.

1. Winter season

In winter, the boiler is heated to adjust the room temperature to an appropriate temperature (eg 18 ° C.).

On the other hand, indoor air is contaminated by activities of indoor occupants / participants, foreign substances flowing in and out, combustion gas, food smell, etc., and the present invention vent heat recovery device is operated to ventilate the room. In the winter, the four-way valve 55 causes the heat exchange medium to supply the compressor 51-the second heat exchanger (condenser) 54-the expansion valve 53-the first heat exchanger (evaporator) 52-the compressor 51. Circulate continuously.

The indoor air is discharged to the outside along the discharge duct 10 by the blowing force of the discharge fan 30 while the heat recovery means is operated, and the outdoor air is blown off by the blowing force of the inlet fan 40. It flows into the interior space (1a) through. As such, contaminated indoor air is discharged and clean outdoor air is introduced to ventilate the room.

In this process, the heat of the indoor air is transferred to the outdoor air by the heat recovery means, and the outdoor air substantially introduced into the indoor air is introduced from the outside, but is maintained at the same temperature or more as the indoor air, and the detailed description is as follows.

The heat exchange medium compressed by the compressor 51 of the heat recovery means 50 at high temperature and high pressure is heat exchanged with outdoor air introduced into the inlet duct 20 when passing through the second heat exchanger (condenser) 54, that is, outdoor air. The heat is taken away from it, condensing itself and raising the temperature of the outdoor air. That is, the clean outdoor air (lower in temperature than the indoor air) passes through the second heat exchanger 54 and the temperature rises to the room temperature and flows into the room.

Subsequently, the heat exchange medium passing through the second heat exchanger (condenser) 54 flows into the first heat exchanger (evaporator) 52 after passing through the expansion valve 53 and flows through the first heat exchanger 52. The heat is recovered from the indoor air passing through the first heat exchanger 52 in the middle, and the vaporizes itself. In other words, the contaminated indoor air is discharged in a contaminated state, but is deprived of heat that has been raised to an appropriate temperature by the boiler.

The heat exchange medium recovering the heat of the indoor air while passing through the first heat exchanger (52) passes through the compressor (51) again, is phase-changed, and then flows back into the second heat exchanger (condenser) 54, and the second heat exchange. The temperature of the outdoor air introduced while passing through the air (condenser) 54 is raised above the room temperature. (The heat exchange medium recovering the heat of the indoor air through the first heat exchanger 52 has its own heat and indoor air. Heat is added, and thus, when the heat is exchanged with the outdoor air through the second heat exchanger 54, the outdoor air recovers its own heat of the heat exchange medium and the heat recovered from the indoor air. Heat is raised above the temperature of the room air). As described above, when the contaminated indoor air is discharged, the heat of the indoor air is recovered and the temperature of the outdoor air is adjusted to the temperature of the indoor air through the heat exchange medium phase-changed by the recovered heat. Therefore, the indoor air temperature is almost unchanged since the indoor air temperature is room temperature, but the indoor air is removed. Therefore, it is unnecessary to operate the boiler to adjust the room temperature to an appropriate temperature.

2. Summer season

In summer, the air conditioner is operated to cool the room in order to adjust the room temperature to an appropriate temperature (for example, 18 ° C).

On the other hand, indoor air is contaminated by activities of indoor occupants / entrants, foreign matters that enter and exit, combustion gas, and food smells, and discharge fans 30 and inflow fans to discharge contaminated indoor air and supply clean outdoor air. And operation of the heat recovery means. In summer, the four-way valve 55 causes the heat exchange medium to supply the compressor 51-the first heat exchanger (condenser) 52-the expansion valve 53-the second heat exchanger (evaporator) 54-the compressor 51. Circulate continuously.

As described in the winter season, as the polluted indoor air is discharged to the outside, the odor existing in the room can be removed to ventilate the room, and in this process, the heat of the indoor air is transferred to the outdoor air by the heat recovery means, thereby substantially. The outdoor air introduced into the room is introduced from the outside but maintains the same temperature as the indoor air, and the detailed description is as follows.

The heat exchange medium compressed at high temperature and high pressure by the compressor 51 of the heat recovery means 50 flows into the first heat exchanger (condenser) 52 and the first heat exchange while flowing the first heat exchanger (condenser) 52. Heat is deprived of the room air passing through the air (condenser) 52 and condenses itself. That is, the indoor air is taken away from the heat exchange medium in the first heat exchanger (condenser) 52 to rise and is discharged with a bad smell.

The heat exchange medium exiting the first heat exchanger (condenser) 52 passes through the second heat exchanger (evaporator) 54 after passing through the expansion valve 53, and is introduced by the inlet fan 40 in this process. The heat is exchanged with the outdoor air to evaporate to lower the outdoor air to a lower temperature. That is, the clean outdoor air (higher in temperature than the indoor air) passes through the second heat exchanger (evaporator) 54 and the temperature is increased by the heat exchange medium heat-exchanged with the indoor air through the first heat exchanger (condenser) 52. It is lowered to the temperature of indoor air and flows into the room.

The heat exchange medium that recovers the heat of the outdoor air is passed through the compressor 51 and then phase-changed and supplied to the first heat exchanger (condenser) 52 and passed through the first heat exchanger (condenser) 52. Heat is taken away by the indoor air discharged in the air and flows into the expansion valve 53. As described above, when the contaminated indoor air is discharged, heat is removed from the indoor air to adjust the temperature of the outdoor air to the temperature of the indoor air through the phase-changed heat exchange medium. Therefore, the indoor air temperature is almost unchanged since the indoor air temperature is lower than the room temperature, although indoor polluted air (odor) is removed. Therefore, it is not necessary to operate the air conditioner to adjust the room temperature to an appropriate temperature.

<Example 2>

Since Embodiment 1 described above uses one heat recovery means (heat recovery cycle), a plurality of interior spaces 1a are independently controlled by adjusting the opening degree of grills 13 and 23 provided in each interior space 1a. In this embodiment, each of the heat recovery means 50 (heat recovery cycle) is installed in each indoor space 1a, and the plurality of heat recovery means 50 installed in each indoor space 1a is controlled by the controller 60. Can be controlled by

As shown in FIG. 4 and FIG. 5, according to the ventilation heat recovery apparatus according to the present embodiment, heat recovery means 50 for ventilation of each indoor space 1a is installed for each indoor space 1a, and the controller ( 60 may independently control the compressors 51 of each of the heat recovery means 50 to control only the heat recovery means 50 of the selected indoor space 1a according to the user's operation.

The compressor 51, the expansion valve 53, and the four-way valve 55 of the heat recovery means 50 are mounted inside the separate case 56 to be integrated.

Since the action of the heat recovery means 50 according to the present embodiment is the same as in the first embodiment described above, a detailed description thereof will be omitted.

In addition, not only the ventilation of each indoor space 1a by one heat recovery means 50, but also the ventilation of the indoor space of one floor by one heat recovery means 50 may be performed by different duct designs. have.

As described above, according to the ventilation heat recovery device for a multi-generational building according to the present invention, the polluted air of all indoor spaces formed in the multi-generational building is discharged, and the odor that is a pollutant from the polluted indoor air is discharged when the outdoor air is introduced. However, the indoor air temperature is not discharged, but is transferred to the incoming outdoor air to keep the indoor air clean, so that the room can be ventilated. The cost can be reduced.

The invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, but the invention is not limited to the configuration and operation as shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes, modifications, and equivalents should be considered to be within the scope of the present invention.

1 is a block diagram of a ventilation heat recovery device for a multi-generational building according to Embodiment 1 of the present invention.

Figure 2 is a block diagram of a heat recovery means applied to the ventilation heat recovery device for a multi-generational building according to Embodiment 1 of the present invention.

Figure 3 is a view for showing a grill applied to the heat recovery device for a multi-generational building according to the first embodiment of the present invention.

4 is a block diagram of a ventilation heat recovery device for a multi-generational building according to Embodiment 2 of the present invention.

5 is a conceptual view of a heat recovery means applied to the ventilation heat recovery device for a multi-generational building according to Embodiment 2 of the present invention.

<Description of the symbols for the main parts of the drawings>

10: exhaust duct, 11: inlet

12: outlet, 20: inlet duct

21: outlet, 22: inlet

30,40: fan, 50: heat recovery means

60: controller,

Claims (3)

In the heat recovery device of a building having a plurality of independent indoor space, An exhaust duct 10 arranged along the indoor space of the building and provided with an inlet 11 for communicating with the indoor space, and an outlet 12 for discharging indoor air to guide indoor air to be discharged to the outside; An inlet duct 20 arranged along the indoor space and having an outlet 21 communicating with the indoor space and an inlet 22 for inflowing outdoor air to guide the outdoor air into the room; A discharge fan (30) / inlet fan (40) mounted in the discharge duct and the inlet duct, respectively for forcibly discharging / inflowing air; And, A compressor 51 for compressing a heat exchange medium at a high temperature and high pressure, and a first heat exchange medium mounted on the outlet and circulating the heat exchange medium compressed by the compressor therein to exchange heat with indoor air discharged through the outlet through the heat exchange medium. A heat exchanger 52, an expansion valve 53 for decompressing the heat exchange medium passing through the first heat exchanger, and a heat exchange medium mounted at the inlet and depressurized by the expansion valve therein circulate through the first heat exchanger. A second heat exchanger 54 for exchanging the temperature of the outdoor air to the temperature of the indoor air by exchanging heat with the outdoor air introduced through the inlet through a heat exchange medium exchanged with the indoor air, and a four-way valve for switching the flow of the heat exchange medium. (55) consists of heat from the indoor air discharged through the heat exchange medium during the discharge / inlet of the indoor / outdoor air by the discharge fan / inlet fan Heat recovery means (50) for maintaining indoor temperature while eliminating indoor odors by supplying the outdoor air to be recovered and introduced; And a controller for controlling the operation of the discharge fan, the inlet fan, and the heat recovery means. The inlet 11 and the outlet 21 of the inlet duct is further provided with air grills 13 and 24 for opening and closing the inlet and outlet, respectively. Ventilation heat recovery device for multi-generation buildings. According to claim 1, wherein the first heat exchanger and the second heat exchanger of the heat recovery means are respectively provided on the inlet side of the discharge duct and the outlet side of the inlet duct connected to the respective indoor space, the compressor, expansion valve and The four-way valve is mounted inside the case 56 to ventilate the interior space 1: 1, and the controller independently controls the heat recovery means for the multi-generational building.