JP3853928B2 - Central ventilation heating system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  This inventionFor each floor in a two-story or three-story house or moreIndependently formed central ventilation heating systemAbout.
[0002]
[Prior art]
  FIG. 7 shows a schematic diagram of a conventional central ventilation and heating apparatus.
  For example, in a two-story house,The conventional central ventilation and heating device 100 has one large ventilation unit body 110 that forcibly forms an air flow on the ceiling portion of the first floor,In the houseIt was intended to ventilate the air on all floors. Specifically, one large ventilation unit main body 110 that is located on the ceiling portion of the first floor and forcibly forms an air flow is formed on the ceiling portion of the first floor, that is, the floor portion of the second floor. And this central ventilation heating device 100ResidentialTo bring fresh fresh air into the roomResidentialAn external suction pipe 120 communicating with the ventilation unit main body 110 from the outside, and air sucked from the external suction pipe 120 through the ventilation unit main body 110In the roomSupplying indoor supply pipes 130, 150, and 140 are provided. The indoor supply pipes 130, 140, and 150 include a first floor indoor supply pipe 130 for supplying air to the first floor room, a second floor indoor supply pipe 140 for supplying air to the second floor room, and the second floor use pipe. It is formed of an indoor supply pipe 140 and a vertical connection pipe 150 that connects the first floor indoor supply pipe 130.
[0003]
  Further, the ventilation unit main body 110 was attached with a heating unit 180 for heating indoor air. The heating unit 180 forces a hot water boiler 181 installed outdoors, a hot water supply pipe 182 for supplying hot water boiled in the hot water boiler 181 into the room, and a flow of hot water by the hot water supply pipe 182. The hot water supply device 183 formed in a conventional manner and the heat radiator 184 for radiating the heat of the hot water supplied by the hot water supply device 183 to the outside air sucked into the room were provided. The radiator 184 is provided immediately after the ventilation unit main body 110, and the air radiated by the radiator 184 is removed.All in the houseIt was supplied to the room on the floor.
[0004]
  The central ventilation / heating device 100 includes an indoor exhaust pipe 160 that leads from the indoor ceiling on the first floor toward the ventilation unit body 110 in order to suck indoor air into the ventilation unit body 110, and the indoor exhaust pipe 160. An external exhaust pipe 170 communicating between the outdoor unit and the ventilation unit main body 110 is provided for discharging the air sucked from the outdoor unit.
[0005]
[Problems to be solved by the invention]
  However, the above-described conventional central ventilation / heating apparatus 100 has to form a longitudinally connected pipe 150 extending in the longitudinal direction for connecting the pipes on the first floor and the second floor. For this reason,Residential150 vertically connected piping insideHouse interiorThere is a first problem that a piping space is required to pass through, and the living space is reduced accordingly.
[0006]
  And since it has the vertical connection piping 150, there existed the 2nd problem that the length of piping became long and piping cost increased.
  And since the total extension of piping becomes long, in order to supply air to the front-end | tip of all piping, the 3rd problem of requiring the ventilation unit main body 110 which consists of a large-sized air supply apparatus with high supply capability. There was a point.
[0007]
  In addition, since it is necessary to install a radiator 184 corresponding to the size of the ventilation unit body 110 immediately after the ventilation unit body 110,Each floorSupplied to allAirThere is a fourth problem that the radiator 184 increases in size and weight because it must be warmed up, and the installation location becomes troublesome.
  Furthermore, recently, the number of three-story houses has increased due to the effective use of narrow land. However, when the conventional central ventilation / heating system 100 is used in this three-story house, the total length of the pipes is even longer. As a result, the air supply capacity of the ventilator main body also requires a larger size, resulting in higher costs. For this reason, the conventional central ventilation and heating apparatus 100 has a fifth problem that it is difficult to apply to a three-storied or higher house.
[0008]
  Therefore,The present invention (the invention according to claim 1)It was made in view of the first, second, third, fourth and fifth problems of the prior art described above, and the purpose thereof is to eliminate the piping space between the upper and lower floors, The total length of piping can be shortened and the ventilation unit body can be downsized.Let alone two-story houses,It is intended to provide a central ventilation and heating device that can easily accommodate a three-story house or more.
[0009]
  In addition to this,The present inventionIt is an object of the present invention to provide a central ventilation heating apparatus capable of suppressing a decrease in thermal efficiency such as indoor cooling efficiency and heating efficiency even when air is ventilated to fresh air.
[0010]
  In addition to this,The present inventionIt is intended to provide a central ventilation heating device that can effectively use the floor surface without being restricted by the installation position of the air outlet.
[0011]
[0012]
[Means for Solving the Problems]
  The present invention is for achieving the above-described object.
  The present invention (the invention according to claim 1)Has multiple floors above and belowEach floor in a two-story or three-story or higher houseA central ventilation heating device (10) for ventilating a room and heating outside air taken from the outside, a cylindrical pipe communicating between the room and the outside, and forced air inside the pipe A ventilation unit main body (20) that forms a flow of air, and a heating unit (83) that warms the outside air taken in by the ventilation unit main body (20) to a predetermined temperature,The pipe is a ventilation unit body from the outside of the house in order to take air outside the house into the room (20) External suction pipe communicating with (30) And this external suction pipe (30) Ventilation unit body for air sucked from (20) Indoor supply piping to supply to the room on the same floor of the house via (40) And its indoor supply piping (40) Ventilation unit body for indoor air on the same floor as the room where the (20) Indoor inlet for inhaling (50) And this indoor inlet (50) Ventilation unit body to exhaust the air inhaled from outside (20) External exhaust piping that communicates from the outside to the outside (60) And the ventilation unit body (20) Is the indoor inlet located on the indoor side (50) External exhaust piping that is inhaled from (60) The air exhausted from the room to the outside and the external suction pipe located outside the room (30) Indoor supply piping that is inhaled from (40) A heat exchange part that exchanges heat with the air supplied indoors fromThe heating unit (83)Placed outdoors in a houseA hot water boiler (80) for boiling hot water, a hot water supply pipe (81) for supplying hot water boiled by the hot water boiler (80) into the room, and a flow of hot water by the hot water supply pipe (81) are forced The heat water supply (84) formed in the heat dissipation heat to dissipate the heat of the hot water supplied from the hot water supply pipe (81) by the hot water supply device (84) to the outside air introduced by the ventilation unit body (20) The ventilation unit body (20), piping and radiator (82),For each floor on the ceiling of each floor of the houseIndependentlyAn air outlet (for example, an air supply grille) that is arranged and blows out outside air taken in through the indoor supply pipe into the room 43 ) Placed on the ceiling in the room, the external suction pipe (30) And external exhaust piping (60) The end on the outdoor side of the top floor is open to the eaves, and the end on the outdoor side of the lower floor is formed on the outer wall of the houseIt is characterized by that.
[0013]
  Here, this central ventilation heating device (10) is ``For each floor of the house`` Independently formed '' means that the ventilation unit body (20) and its related piping, hot water supply pipe (81), and radiator (82)ResidentialTo ventilate the same floorEach floorThis means that each floor is formed independently. For example, two storiesResidentialIn the case of an architectural enclosure, a central ventilation and heating system for the first floor (11) consisting of the ventilation unit body for the first floor (21) and the piping for the first floor related to it is used for the first floor of the central ventilation and heating system (10). It is arranged on the first floor ceiling part, and for the second floor, the second floor central ventilation heating device (12) consisting of the second floor ventilation unit body (22) and the second floor piping is included on the second floor ceiling part. It is a waste.
  And, the first floor central ventilation heating device (11) and the second floor central ventilation heating device (12) are not connected by a vertical pipe or the like,Each floorAre arranged independently, and include those formed to be independently operable.
[0014]
  The first floor ventilation unit (21) has a first floor radiator (82), and the second floor central ventilation and heating device (12) has a second floor radiator (82). Is included.
  In addition, “cylindrical piping that communicates between the room and the outside” is a cylindrical pipe that has one end opening in the outdoor wall and the other end opening in the indoor wall. is there. This pipe may be dedicated to supply fresh outdoor air into the room, or dedicated to discharge to exhaust indoor air to the outside, or may form one of these. . Further, it includes one in which two for exclusive use for supply and only for discharge are formed in parallel.
[0015]
  The “ventilation unit body (20) that forms a forced air flow inside the pipe” is composed of an electric motor and a number of blades that are rotated by the electric motor. It is possible to forcibly move the air inside the pipe in either direction using a typical air flow. Specifically, the centrifugal force of the gas is used as the impeller rotates, and the sirocco fan that pumps the gas, the centrifugal fan such as the plate fan, the turbo blower, or several blades in the radial direction with respect to the axis As in the electric fan, the gas flows in the axial direction, and includes an axial blower or the like by the lifting action of the blades, not by centrifugal force.
[0016]
  In addition, the “hot water boiler (80)” includes one that uses hot fuel such as gas or kerosene to boil hot water to about 80 to 90 degrees. Further, the hot water supply device (84) may be of a level that assists the natural circulation force inside the hot water supply pipe (81), and at least the flow inside the hot water supply pipe (81) is forcibly formed. This includes pumps.
[0017]
  According to the present invention, the ventilation unit main body or the like is provided for each floor of the house.It is formed independently. For this reason,Each floorIt is not necessary to pass air supply or exhaust piping in the vertical direction between them, and it is not necessary to provide a space for passing such vertical piping between floors. As a result, the living space does not become narrow due to the vertical piping space,ResidentialEffective use of the internal space can be achieved. Further, since such vertical piping is not required, the total length of the piping can be shortened, and the piping cost can be reduced. In addition, the total length of piping is shortened,Each floorBecause only ventilation capacity is enough,Each floorThe capacity of the ventilation unit main body (20) provided in the building can also be made smaller compared with the whole building ventilation. AndEach floorTo form each independently,HousingEven if it is more than three stories, the same piping, equipment and facilitiesEach floorSince it is sufficient to form each, more than three storiesResidentialCan be easily accommodated. In addition, even when the two-story building is expanded or renovated to more than three-story building, it can be easily dealt with simply by incorporating the same device.
[0018]
  Also, since the radiator (82) is installed for each ventilation unit body (20), the radiator (82)Each floorIt is sufficient if it is large enough to heat the interior, and because it is lightweight and compact, it can be easily installed, for example, in the back of a ceiling without struggling with the installation location.it can.
[0019]
  Further, according to the present invention described above,From external suction pipe (30)ResidentialExternal air is inhaled, and the inhaled air passes through the ventilation unit body (20) through the indoor supply pipe (40).ResidentialSupply to the room on the same floor. ThisResidentialFresh fresh air can be supplied into the room on the same floor. And the indoor air is sucked into the ventilation unit body (20) from the indoor suction port (50), and from there through the external exhaust pipe (60),ResidentialIt is discharged outside. As a result, indoor airResidentialIt can be discharged to the outside. Therefore,ResidentialThe air inside the room,ResidentialA part of the air can be exchanged with the outside air, and indoor ventilation on the same floor can be performed.
[0020]
[0021]
  Also,Here, the “heat exchanging unit” is a unit that can perform only the movement of heat without directly mixing the air inside with the air discharged to the outside and the air supplied to the room. For example, a large number of straw-like ultrathin cylindrical tubes made of metal, resin, or the like having a high thermal conductivity are arranged. And either one of the air discharged | emitted outside or the air supplied indoors is made to pass through the inside of a straw-shaped cylindrical tube, and the other is made to pass the circumference | surroundings of the cylindrical tube. Thereby, when there is a temperature difference between the air discharged to the outside and the air supplied to the room, the heat having the higher temperature is transmitted to the lower temperature through the thin cylindrical tube. Is. Of course, the heat exchanging part is not limited to the structure described above, and may have another structure as long as it has a heat exchanging function.
[0022]
  AndThe ventilation unit body (20) according to the present invention includes a heat exchange part that exchanges heat between the air discharged to the outside and the air supplied to the room.Because it hasIn the heated state of the room, the warm air exhausted from the room to the outside is absorbed by the heat exchanging unit, and the absorbed heat is added to the cold air outside the room that is sucked into the room from the outside. Thereby, air whose temperature is higher than the outside is sent into the room, and a decrease in thermal efficiency in the heating state can be suppressed.
[0023]
  On the other hand, in the state where the room is cooled, the warm air sucked into the room from the outside is absorbed by the heat exchanging unit, and the absorbed heat is added to the air discharged from the cooled room to the outside of the room. . Thereby, air whose temperature is lower than the outside is sent into the room, and a decrease in thermal efficiency in the cooling state can be suppressed.
[0024]
[0025]
[0026]
[0027]
[0028]
  Moreover, according to the present invention,Compared with the one where the air outlet (43) is arranged on the floor or wall surface, the floor surface can be used effectively without being restricted by the position where the air outlet (43) is arranged. For example, furniture can be freely arranged on the floor.
[0029]
[0030]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
  FIGS. 1-6 shows embodiment of this invention, FIG. 1 is a schematic diagram of a central ventilation heating apparatus, FIG. 2 has arrange | positioned the central ventilation heating apparatus.Two-story house3 is a schematic plan view of the arrangement of the piping on the first floor of the central ventilation heating apparatus, FIG. 4 is a schematic plan view of the arrangement of the piping on the second floor of the central ventilation heating apparatus, and FIG. FIG. 6 is a longitudinal sectional view showing a state in which the intake grill is attached to the ceiling.
[0031]
  First, the configuration of the present embodiment will be described.
  The central ventilation heating apparatus according to the present embodiment is a two-story building having two floors above and belowResidentialThe room can be ventilated and heated. The central ventilation / heating device 10 includes a cylindrical pipe communicating between the room and the outside, and a ventilation unit body 20 that forms a forced air flow inside the pipe. There are 80 hot water boilers that boil hot water,Hot water boiler 80A heating unit 83 including a hot water supply pipe 81 for supplying hot water boiled by the heat generator and a radiator 82 for radiating the heat of the hot water supplied from the hot water supply pipe 81 is connected.
[0032]
  And this ventilation unit body 20, piping and radiator 82,ResidentialTo ventilate the same floorEach floor of the houseEach is formed independently.
  Specifically, for the first floor of the central ventilation heating device 10, the first floor central ventilation heating device 11 comprising the ventilation unit main body 21 for the first floor and the piping for the first floor related thereto is arranged on the ceiling portion of the first floor. Has been. For the second floor, a second-floor central ventilation and heating device 12 including a second-floor ventilation unit main body 22 and second-floor piping is arranged on the ceiling of the second floor. The first floor central ventilation and heating device 11 and the second floor central ventilation and heating device 12 are connected to each other on the first and second floors without being connected by a vertical pipe or the like.Each floorEach is arranged independently and is configured to be independently operable.
[0033]
  A heating unit 83 including a hot water boiler 80, a hot water supply pipe 81, and a radiator 82 is connected to each of the ventilation unit bodies 20 for the first floor and the second floor. This heating unit 83ResidentialA kerosene-type hot water boiler 80 that is arranged outdoors and boiles hot water of about 80 to 90 degrees, and a hot water supply device 84 that is connected to the hot water boiler 80 and forcibly supplies the hot water boiled in the hot water boiler 80. And a hot water supply pipe 81 that is connected to the hot water supply device 84 and introduces the hot water supplied from the hot water supply device 84 into the ventilation unit main body 20, and the ventilation unit main body 20, provided from the hot water supply pipe 81 A radiator 82 that transmits the heat of the supplied hot water to the outside air introduced into the room by the ventilation unit body 20, and one end connected to the radiator 82, the other end connected to the hot water boiler 80, There is provided a return water pipe 85 for returning the hot water whose temperature has been lowered after heat radiation by the radiator 82 to the hot water boiler 80 again.
[0034]
  In the above embodiment, the hot water boiler 80 has been described as a kerosene boiler, but any heat source may be used as long as the hot water can be boiled, and city gas or electricity is used. There may be. The hot water supplier 84 forcibly circulates the hot water boiled by the boiler, as long as the hot water supplier 84 has a supply power enough to assist natural circulation force. In this embodiment, an electric pump is used. ing.
[0035]
  The hot water supply pipe 81 has an elliptical cross section. Therefore, as compared with the case where a circular tube is used, if the inside of the tube has the same cross-sectional area, the supply amount does not change, and there is an advantage that it can be installed in a narrow place where a circular tube cannot be installed. For this reason, no trouble is required when installing in the back of a ceiling or the inside of a wall panel.
[0036]
  The radiator 82 can warm the outside air taken in from the outdoors by the ventilation unit body 20, and in the present embodiment, for example, a panel heater is used.
  The piping isResidentialTo take outside air into the roomResidentialAn external suction pipe 30 communicating with the ventilation unit body 20 from the outside, and air sucked from the external suction pipe 30 through the ventilation unit body 20ResidentialAn indoor supply pipe 40 that supplies the room on the same floor, an indoor inlet 50 that sucks into the ventilation unit body 20 the indoor air on the same floor as the room in which the indoor supply pipe 40 is disposed, and the indoor inlet 50 In order to exhaust the inhaled air to the outside, from the ventilation unit body 20ResidentialAnd an external exhaust pipe 60 communicating with the outside.
[0037]
  The central ventilation / heater 10 is formed independently of the first floor central ventilation / heater 11 and the second floor central ventilation / heater 12. Separately for the floor and for the second floor. That is, the first floor central ventilation and heating device 11 includes a first floor ventilation unit body 21, a first floor external exhaust pipe 61, a first floor external suction pipe 31, a first floor indoor intake 51, and a first floor. Indoor supply piping 41And an external suction pipe for the first floor 31 And external exhaust piping for the first floor 61 As is apparent from FIG. 1, the end portion on the outdoor side is formed in the outer wall of the house.The second-floor central ventilation and heating device 12 includes a second-floor ventilation unit body 22, a second-floor external exhaust pipe 62, a second-floor external suction pipe 32, a second-floor indoor intake 52, and a second-floor indoor supply pipe 42.And an external suction pipe for the second floor 32 And second floor external exhaust piping 62 As is apparent from FIG. 1, the end portion on the outdoor side is formed to open at the eaves of the house.
[0038]
  A louver-shaped air supply grille 43 that is located on the indoor side surface of the ceiling 74 and that can easily change the direction of the air supplied from the indoor supply pipe 40 is provided at the indoor front end of the indoor supply pipe 40. Is formed. The ventilation unit body 20 is composed of an electric motor and a plurality of blades rotated by the electric motor. The ventilation unit body 20 forcibly uses the forced air flow generated by the rotating blades to force the air inside the pipe. It can be moved. That is, the air in the external intake pipe 30 can be forcibly moved toward the indoor supply pipe 40 or the air from the indoor intake port 50 toward the external exhaust pipe 60.
  Specifically, although not shown in particular, it includes a turbo fan that pumps gas by utilizing the centrifugal force of the gas as the impeller rotates, and a casing that forms a flow passage from the turbo fan. Is.
[0039]
  The ventilation unit body 20 is not particularly shown, but is drawn from the indoor suction port 50 located on the indoor side and discharged from the external exhaust pipe 60 to the outside, and from the external suction pipe 30 located on the outdoor side. A heat exchanging unit is provided for exchanging heat with the air that is sucked and supplied from the indoor supply pipe 40 to the room.
  This heat exchanging part can perform only the movement of heat without directly mixing the internal air with the air discharged to the outside and the air supplied to the room. Specifically, a large number of straw-like ultrathin cylindrical tubes made of metal, resin or the like having a high thermal conductivity are arranged. And either one of the air discharged | emitted outside or the air supplied indoors is made to pass through the inside of a straw-shaped cylindrical tube, and the other is made to pass the circumference | surroundings of the cylindrical tube. Thereby, when there is a temperature difference between the air discharged to the outside and the air supplied to the room, the heat having the higher temperature is transmitted to the lower temperature through the thin cylindrical tube. .
[0040]
  Note that the radiator 82 of the heating unit 83 is used in the ventilation unit body 20 in order to effectively use the heat in the room. It is formed at a position where it comes into contact with the outside air after the exchange of moisture.
  The ventilation unit body 20 is not particularly shown, but is sucked from the indoor suction port 50 located on the indoor side and exhausted to the outside from the external exhaust pipe 60 and from the external suction pipe 30 located on the outdoor side. In addition, a moisture exchange unit that exchanges moisture contained in the air is provided between the indoor supply pipe 40 and the air supplied to the room. This moisture exchanging unit can only move moisture without directly mixing the internal air with the air discharged outside and the air supplied indoors. Specifically, a large number of straw-like ultrathin cylindrical tubes made of a hygroscopic material such as Japanese paper or chemical fiber that easily absorb moisture are arranged. And either one of intake and exhaust is passed through the inside of the straw-shaped cylindrical tube, and the other is passed through the periphery of the cylindrical tube. As a result, when either of the air exhausted to the outside of the room or the air supplied to the room is air that contains a lot of moisture, and the other is dry air, The moisture is transmitted to the lower humidity through a thin cylindrical tube made of a hygroscopic material.
[0041]
  Next, the operation and effect of the above-described embodiment will be described.
  According to the present embodiment, from the external suction pipe 30ResidentialExternal air is inhaled, and the inhaled air is heated to a predetermined temperature via the radiator 82 of the heating unit 83 of the ventilation unit body 20 and is heated by the indoor supply pipe 40.ResidentialSupply to the room on the same floor. The radiator 82 transmits the heat of the hot water supplied from the hot water supply device 84 via the hot water supply pipe 81 to the air supplied to the room by the heat radiator 82. ThisResidentialExternal fresh and warm air can be supplied into the room on the same floor.
[0042]
  The hot water is transferred to the air supplied to the room by the radiator 82 via the hot water supply pipe 84, and then reduced to the hot water boiler 80 via the return water pipe 85 and boiled again by the hot water boiler 80. It is. Then, the indoor air is sucked into the ventilation unit body 20 from the indoor suction port 50, and from there through the external exhaust pipe 60,ResidentialIt is discharged outside. As a result, indoor airResidentialIt can be discharged to the outside. Therefore,ResidentialThe air inside the room,ResidentialA part of the air can be exchanged with the outside air, so that indoor ventilation and heating on the same floor can be performed.
[0043]
  And the central ventilation heating apparatus 10 which concerns on this Embodiment isResidentialBetween the first floor and the second floorEach floorEach is formed independently. For this reason, there is no need to pass air supply or exhaust piping between the first floor and the second floor in the vertical direction, and there is no need to provide a space for passing such vertical piping between the floors. As a result, the living space does not become narrow due to the vertical piping space,ResidentialEffective use of the internal space can be achieved. Further, since such vertical piping is not required, the total length of the piping can be shortened, and the piping cost can be reduced. In addition, the total length of piping is shortened,Each floorBecause only ventilation capacity is enough,Each floorOf ventilation unit body 20Even this houseIt can be made smaller compared to so-called whole-ventilation where all rooms are ventilated. The radiator 82 of the heating unit 83 is alsoEach floorSince it is provided every time, the scale of the radiator 82 can be reduced, and installation is not required.
[0044]
  Also, between the first floor and the second floorEach floorTo form each independently,ResidentialEven if it becomes more than three stories, the same piping, equipment and facilitiesEach floorIt is enough to form each, more than three storiesResidentialCan be easily accommodated. In addition, even when the two-story building is expanded or renovated to more than three-story building, it can be easily dealt with simply by incorporating the same device.
[0045]
  The ventilation unit main body 20 according to the present embodiment includes a heat exchange unit that exchanges heat between the air discharged to the outside and the air supplied to the room. For this reason, when the room is heated, the warm air exhausted from the room to the outside is absorbed by the heat exchanging unit, and the absorbed heat is the air from which the outdoor cold air is sucked into the room from the outside. Added to. As a result, air having a higher temperature than the outside is sent into the room, and a reduction in heating efficiency by the heating unit 83 can be suppressed.
[0046]
  In addition, in the state where the heating unit 83 is stopped in the summer and the room is cooled, the warm air sucked into the room from the outside is absorbed by the heat exchange unit, and the heat is cooled in the room. Air is added to the air exhausted from the room to the outside. As a result, air having a temperature lower than that of the outside is sent into the room, and a decrease in efficiency in the cooling state can be suppressed.
[0047]
  Furthermore, the ventilation unit body 20 includes a moisture exchange unit that exchanges moisture contained in the air between the air sucked into the room from the outside and the air discharged from the room to the room outside. For this reason, in a room with high humidity, the air containing a large amount of moisture exhausted from the room to the outside is absorbed by the moisture exchange unit, and the absorbed moisture is absorbed by the outdoor dry air from the outside. Added to dry air when inhaled indoors. Thereby, air whose humidity is higher than that of the outside is sent into the room, and a state where the humidity is always higher than that of the outdoor can be maintained.
[0048]
  Also, when the humidity in the room is low, the air containing a large amount of moisture sucked into the room from the outside is absorbed by the moisture exchange unit, and the dried air is discharged from the room to the outside of the room. Added when done. As a result, air whose humidity is lower than that of the outside is sent into the room, and the humidity in the room can always be kept lower than that of the outside.
[0049]
【The invention's effect】
  Since this invention is comprised as mentioned above, there exists an effect as described below.
  That is, in the present inventionAccording toBetween upper and lower floorsTo provide a central ventilation and heating system that can reduce the total length of piping, reduce the size of the ventilation unit body, and can easily accommodate three-story houses or more. Can do.
[0050]
  Also, in the present inventionAccording to the present invention, it is possible to provide a central ventilation heating device capable of suppressing a decrease in indoor cooling efficiency or heating efficiency by a heating unit even when indoor air is ventilated to fresh air.it can.
[0051]
  Furthermore, in the present inventionAccording to the present invention, it is possible to provide a central ventilation heating device that can effectively use the floor without being restricted by the installation position of the outside air outlet.it can.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing an embodiment of the present invention and showing a central ventilation heating apparatus.
FIG. 2 shows an embodiment of the present invention, in which a central ventilation heating device is arrangedTwo-story houseIt is a schematic perspective view which shows.
FIG. 3, showing an embodiment of the present invention, is a schematic plan view showing an arrangement of piping on the first floor of a central ventilation heating apparatus.
FIG. 4 is a schematic plan view showing an embodiment of the present invention and showing an arrangement of piping on the second floor of the central ventilation / heating device.
FIG. 5, showing an embodiment of the present invention, is a longitudinal sectional view showing a state in which a ventilation unit main body is attached to a ceiling.
FIG. 6, showing an embodiment of the present invention, is a longitudinal sectional view showing a state where an intake grill is attached to a ceiling.
FIG. 7 is a schematic diagram showing a conventional central ventilation and heating apparatus.
[Explanation of symbols]
  10 ... Central ventilation heating device, 11 ... Central ventilation heating device for the first floor, 12 ... Central ventilation heating device for the second floor, 20 ... Ventilation unit body, 21 ... Ventilation unit body for the first floor, 22 ... Ventilation unit body for the second floor, 30 ... External suction pipe, 31 ... First floor external suction pipe, 32 ... Second floor external suction pipe, 40 ... Indoor supply pipe, 41 ... First floor indoor supply pipe, 42 ... Second floor indoor supply pipe, 43 ... Air supply grille , 50 ... Indoor suction port, 51 ... First floor indoor suction port, 52 ... Second floor indoor suction port, 60 ... External exhaust piping, 61 ... First floor external exhaust piping, 62 ... Second floor external exhaust piping, 71 ... Closet , 72 ... Indentation, 73 ... Indentation, 74 ... Ceiling, 80 ... Hot water boiler, 81 ... Hot water supply pipe, 82 ... Radiator, 83 ... Heating unit, 84 ... Hot water supply, 85 ... Return water pipe, 100 ... Central ventilation heating Equipment: 110 ... Ventilation unit body, 120 ... External suction pipe, 130 ... First floor indoor supply pipe, 140 ... Vertical connection Connection pipe, 150 ... indoor supply pipe for second floor, 160 ... indoor exhaust pipe, 170 ... external exhaust pipe, 180 ... heating unit, 181 ... hot water boiler, 182 ... hot water supply pipe, 183 ... hot water feeder, 184 ... radiator.

Claims (1)

A central ventilation heating device that ventilates the interior of each floor in a two-story or three-story or more house having a plurality of floors above and below, and that can heat outside air taken from outside the room,
A tubular pipe communicating between the room and the outside;
A ventilation unit body that forms a forced air flow inside the pipe;
A heating unit that warms the outside air taken in by the ventilation unit body to a predetermined temperature,
The pipe includes an external suction pipe communicating with the ventilation unit main body from the outside of the house to take in air outside the house into the room, and the air sucked from the external suction pipe through the ventilation unit main body on the same floor of the house An indoor supply pipe for supplying air into the room, an indoor intake port for sucking indoor air on the same floor as the room where the indoor supply pipe is arranged, and the air sucked from the indoor intake port to the outside It has an external exhaust pipe that communicates from the ventilation unit body to the outside in order to exhaust,
The ventilation unit main body is sucked from an indoor suction port located on the indoor side and exhausted to the outside from an external exhaust pipe, and sucked from an external suction pipe located on the outdoor side and supplied to the room from an indoor supply pipe. A heat exchange part that exchanges heat with the air
The heating unit is disposed outside a house , forcing a hot water boiler for boiling hot water, a hot water supply pipe for supplying hot water boiled by the hot water boiler, and a flow of hot water by the hot water supply pipe A hot water supply device to be formed, and a heat radiator that radiates heat of the hot water supplied from the hot water supply pipe by the hot water supply device to the outside air taken in by the ventilation unit body,
The ventilation unit body, piping and radiator are arranged independently for each floor on the ceiling part of each floor of the house ,
An air outlet for blowing the outside air taken in via the indoor supply pipe into the room is arranged on the ceiling of the room,
In the external suction pipe and the external exhaust pipe, the outdoor side end of the top floor is open to the eaves, and the outdoor side end of the lower floor is formed to open to the outer wall of the house. Central ventilation and heating system.

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