JP5913151B2 - Air conditioning and ventilation system - Google Patents

Description

  The present invention is the addition of an air heat exchange system that dehumidifies indoor air to an indoor radiant cooling / heating system that circulates cold / hot water created by cold / hot water creating means such as a heat pump or boiler to a radiant heat radiator, Specifically, a combination of a radiant air-conditioning system that circulates cold / hot water created by a heat source unit to a radiant radiator and a mechanical ventilation system that supplies air in a house or office, etc., to dehumidify the air-conditioning in the room. An air-conditioning / ventilation system that imparts functions to improve air-conditioning efficiency and improve indoor comfort, and belongs to the technical field of air conditioning.

Radiant air-conditioning systems have a cool feeling that is lower than room temperature in the living room, even if the cooling temperature is high, and a warm feeling that is higher than room temperature even if the heating temperature is low. This is known as energy-saving air conditioning.
In addition, since radiant cooling and heating has less heat transfer due to convection, there is no discomfort due to airflow, unlike air conditioners, and there are few air temperature spots in the room, so the comfort of cooling and heating is excellent.

However, in high-temperature and high-humidity environments such as summer, when cold water is supplied as a heat source to the radiant radiator, the air near the radiated radiator becomes below the dew point, and condensation occurs on the surface of the radiator. The generated condensed water adheres to nearby walls and floors, causing discomfort and also causing mold and mites.
In order to solve such problems in the radiation type air conditioning system, various types of dew condensation countermeasure techniques have been proposed and implemented.

FIG. 11A is a schematic illustration of the invention disclosed in Patent Document 1 as a countermeasure against condensation in Conventional Example 1. FIG.
That is, Conventional Example 1 (FIG. 11A) is a refrigerant in an air conditioner having a cooling circuit having a compressor, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger, as shown in the figure. The control panel is equipped with a radiant panel built into the circuit and a switch that supplies the refrigerant to the indoor heat exchanger and radiant panel according to the way the dew condensation sensor attached to the radiant panel comes out. Condensation sensor detects the condition and switches between dehumidification and radiant air conditioning according to the signal to prevent condensation on the radiant panel surface during cooling. Is to prevent.

FIG. 11B is a schematic illustration of the invention disclosed in Patent Document 2, which is a dehumidifier of Conventional Example 2.
That is, the dehumidifier of Conventional Example 2 (FIG. 11B) includes a dehumidification rotor that is an adsorbent, a dehumidification passage for returning air from the room to the room through the adsorption region of the dehumidification rotor, An exhaust passage for discharging the air from the dehumidification rotor to the outside through the regeneration region of the dehumidification rotor, and heating the air flowing into the regeneration region of the dehumidification rotor by disposing the exhaust passage upstream of the dehumidification rotor And a fan for sending air to the dehumidifying passage and the exhaust passage.

This dehumidifier sends air to the dehumidification passage by a turbo fan, passes the air from the room through the adsorption area of the dehumidification rotor that is an adsorbent, and adsorbs the moisture of the room air to the dehumidification rotor, thereby dehumidified air Return to the room.
In addition, wind is sent to the exhaust passage by a turbo fan, and the air passing through the exhaust passage is heated by a heater arranged on the upstream side of the dehumidification rotor in the exhaust passage, and then the heated air is passed through the regeneration region of the dehumidification rotor to The moisture contained is desorbed, and the humidified air is discharged to the outside of the room. There is no need for drainage work, and the heater input can be reduced except for the occurrence of water leakage.

FIG. 12A is a schematic explanatory diagram of a heat pump type radiation panel air conditioner according to Conventional Example 3 and is cited as Patent Document 3. The refrigerant circuit includes a compressor, a four-way valve, and a first one. The refrigerant circulates in the order of the water heat exchanger, the pressure reducing valve, the second water heat exchanger, the dehumidifying air heat exchanger, the four-way valve, the accumulator, and the compressor.
The first water circulation circuit is composed of a first water heat exchanger, a hot water boiler, a cooling tower, and a first circulation pump, and the second water circulation circuit (cold and hot water circulation circuit) is a second water heat exchanger, a panel for radiation cooling and heating, And a second circulation pump.

During the operation of the air conditioner, the refrigerant is compressed by the compressor, passes through the four-way valve, condenses in the first water heat exchanger, is reduced in pressure through the pressure reducing valve, and is used for the second water heat exchanger and the dehumidifier. It evaporates in the air heat exchanger and circulates in the refrigerant circuit that returns to the compressor via the four-way valve and accumulator.
In the meantime, when the second circulation pump is driven, the refrigerant exchanges heat with the circulating water inside the second water heat exchanger, and the cold water is supplied to the radiation panel of the second circulation circuit and used for radiation cooling.
Further, the refrigerant exchanges heat with indoor air blown by a dehumidifying fan in an air heat exchanger, and the cooled air is supplied to cooling by forced convection. At this time, the dew point temperature of the indoor air is the air heat. When the temperature is higher than the evaporation temperature of the refrigerant in the exchanger, it is dehumidified.

Then, the surface temperature of the radiant panel is set higher than the dew point temperature of the room air dehumidified by the air heat exchanger by adjusting the evaporation temperature of the refrigerant in the air heat exchanger for dehumidification. Condensation does not occur.
However, in the air conditioner provided with the radiation panel and the dehumidifying air heat exchanger, at the start of cooling, the room is cooled by forced convection until the room air falls to a predetermined temperature, and then the air The weak cooling by the heat exchanger and the radiant cooling by the radiant panel are combined.
Further, during the heating operation, the driving of the dehumidifying fan is stopped and heat exchange with room air in the air heat exchanger is not performed.

  FIG. 12 (B) is a conventional example 4 and is a schematic explanatory view of the technical means cited as Non-Patent Document 1, which is widely used as a room air conditioner. The air is sucked into the air, passed through the filter or coil, and blower is blown into the room again from the air outlet, and cooling is performed by removing heat from the indoor air guided by the air blower and further removing moisture in the air. A coil, an electric heater that heats indoor air by heating, an air filter that filters dust in the air, a compressor that compresses low-pressure and high-temperature refrigerant gas from the cooling coil, and sends it to the condenser as high-temperature and high-pressure gas; It consists of an air-cooled condenser that cools the gas by a condenser fan and returns the gas to a liquid, and an expansion valve that uses the refrigerant from the air-cooled condenser as a gaseous refrigerant. Refrigerant intended to be sent to the refrigerant coil, in which sequentially repeating the operating cycle.

  In addition, the thermostat stored in the casing is to keep the room temperature constant. In the summer, the refrigerator (compressor, condenser, expansion valve, etc.) is operated if the room is hot, and stopped if it is cold. In winter, the electric heater is turned on when it is cold and stopped when it gets hot.

Japanese Patent Laid-Open No. 06-257835 JP 2002-102642 A JP 2006-349270 A

OHM Co., Ltd., March 20, 2010, first edition, 42nd edition, Kohei Kohara, “Air conditioning for 1 million people”, page 140, Chapter 6, “Various air conditioning methods”, Section 6.1 , "The easiest air conditioning method, Fig. 6.1, room cooler"

In the air conditioner of Conventional Example 1 (FIG. 11 (A)), a sensor installed on the radiation panel is used to switch between the radiation panel built in the refrigerant circuit and the indoor heat exchanger. However, even if condensation is detected on the surface of the radiant pipe and the refrigerant circulation is switched to the indoor heat exchanger, the surface temperature of the radiant panel does not immediately recover to a temperature at which condensation is avoided, It is not always possible to avoid indoor contamination, corrosion and mold.
And since priority is given to the amount of dehumidification, when the time which a refrigerant | coolant is thrown into an indoor side heat exchanger becomes long, there exists a problem that the temperature of a radiation panel rises and a radiation effect falls.

  Moreover, in the dehumidification ventilation system of the prior art example 2 (FIG. 11 (B)), wind is sent to the dehumidification passage by the turbo fan, and the air from the room is passed through the adsorption region of the dehumidification rotor as the adsorbent, Air is adsorbed by the dehumidifying rotor to return the dehumidified air to the chamber, while air is sent to the exhaust passage by the turbofan, and the air passing through the exhaust passage by the heater disposed upstream of the dehumidifying rotor in the exhaust passage. After the heater is heated, the heated air is passed through the regeneration area of the dehumidifying rotor, and moisture contained in the adsorbent is desorbed and the humidified air is discharged outside the room. The dehumidifier needs to be arranged on the outside wall surface on the outside of the room and must be able to handle air flow. The capacity of the turbo fan increases, so there is a problem that the noise during operation increases, and the air supply temperature in the room is dehumidified. Question that rises by reaction heat of time There is.

Further, in the heat pump radiant panel air conditioner of Conventional Example 3 (FIG. 12A), a dehumidifying air heat exchanger and a dehumidifying fan are arranged between the four-way valve of the refrigerant circuit and the second water heat exchanger. The indoor air blown by the dehumidifying fan is heat exchange cooled by the dehumidifying air heat exchanger, and is dehumidified when the dew point temperature of the indoor air is equal to or higher than the evaporation temperature of the refrigerant in the air heat exchanger. Is.
At the start of cooling, the room is cooled by forced convection until the room air drops to a predetermined temperature, after which it becomes a cooperative cooling of weak cooling by an air heat exchanger and radiant cooling by a radiant panel. In addition, it is necessary to install two circuits for water and there is a problem of cost.

Moreover, it becomes a work by a skilled engineer, and the maintenance engineer who installs an air-conditioning machine room is also needed.
Therefore, in the air conditioning material of Conventional Example 3, forced convection is indispensable until the room reaches the set temperature at the time of cooling and heating, and the occupant receives the wind that winds up the floor surface, floating dust and dust, and is uncomfortable to the human body. In addition, noise due to air propagation sound and solid propagation sound through the duct, and temperature spots due to airflow and air distribution are generated.
And since the air of a defective conductor is used as a heat medium, there are problems of heat loss and economy.

The room air conditioner of Conventional Example 4 (FIG. 12 (B)) can be used easily and has a high energy saving effect, but has a problem of heating heat shortage in a cold region and a slow start-up. Therefore, there are problems such as discomfort due to the blowing wind, dust, hygiene problems of raising dust, and spots in the temperature distribution in the room.
The room air conditioner is thermally inefficient because it takes in outside air and supplies indoor air together with indoor air at low temperature and low humidity in summer, and supplies air indoors at high temperature and low humidity in winter.
Moreover, since outdoor dry air is taken into the room in the winter, it affects the humidity in the room, activates the activities of bacteria and viruses, and even causes a respiratory disease to the residents.
The present invention epoch-makingly solves or improves each of the problems of these conventional air conditioning systems, from small detached houses to large to medium-sized apartments, in the living room, from summer, winter to intermediate period, The present invention provides a new and highly practical air-conditioning and ventilation system capable of creating a comfortable temperature and humidity environment in a living room.

  The cooling / heating / ventilation system 1 of the present invention includes, for example, as shown in FIG. 1, a heat pump 2 that creates cold / hot water, a circulating pump 3, a radiator 4 a, a return header 6 b, The heat radiating circuit 4 that circulates to the heat radiating circuit 4 is diverted from the first branch point P1 downstream of the circulation pump 3 of the outgoing side piping 6s ′ of the heat radiating circuit 4 and passes through the gas-liquid heat exchanger 5 to the outgoing side of the radiating circuit 4 A cold / hot water circulation circuit 6 that returns to the pipe 6s' is attached, the gas-liquid heat exchanger 5 is disposed in the air supply path of the mechanical ventilation system, and the radiator 4a and the gas-liquid heat exchanger 5 are installed in the room. Are operated by adjusting the temperature and humidity, the temperature of the heat radiation circuit 4 and the temperature and flow rate of the cold / hot water circulation circuit 6.

In this case, the heat radiating body 4a may be a conventional metal, such as steel, aluminum, or copper, or a plastic resin panel, fence, or pipe.
The mechanical ventilation system only needs to be able to forcibly pass the air flow into the gas-liquid heat exchanger 5, and a conventional first-class ventilation method that employs a blower and an exhaust fan for supply and exhaust, respectively. Second type ventilation method that uses a blower for air supply only and extrudes exhaust through openings such as vents, and third type ventilation method that uses a ventilator only for exhaust and intakes through openings such as vents Can be adopted.

Further, the gas-liquid heat exchanger 5 may be a dehumidifier with a built-in conventional cold / hot water coil, as long as the supply air of the mechanical ventilation system is allowed to flow through and the flow-through air can be cooled and dehumidified or heated by heat exchange. Typically, as shown in FIG. 3, it is preferable to employ a novel gas-liquid heat exchanger 5 in which a cold / hot water coil 5b is disposed in the longitudinal direction in an elongated cylindrical body 5a.
The elongated cylindrical gas-liquid heat exchanger can be connected in series with the duct pipe 11a only by interposing the reducer pipe 5J at the front end and the rear end, and can be arranged in the ceiling or under the floor, and is narrow. Construction in the space is also easy.

  Further, the cold / hot water circulation circuit 6 is attached to the heat radiation circuit 4 with a large diameter (standard: inner diameter 20.5 mm, wall thickness 3.25 mm) from the heat source unit 2 as shown in the flow circuit diagram of FIG. A T-type socket 6m is arranged at the first branch point P1 downstream of the circulation pump 3 in the outgoing side pipe 6s' drawn out of a plastic resin pipe (cross-linked polyethylene pipe: JISK6769) and connected to the outgoing side header 6a. From the socket 6m, a plastic resin pipe (cross-linked polyethylene pipe) having a small diameter (standard: inner diameter 9.8 mm, wall thickness 1.6 mm) is extended as the outgoing side pipe 6s "of the cold / hot water circulation circuit 6, and a gas-liquid heat exchanger The return side pipe 6r ″ of the cold / hot water circulation circuit 6 is circulated in the flow path 5 at the second branch point P2 arranged downstream of the first branch point P1 of the heat radiation circuit 4, and the forward side pipe is connected via the flow rate adjusting socket 10c. Together with 6s' It is sufficient to.

  Further, the flow rate adjustment of the cold / hot water circulation circuit 6 flowing into the gas-liquid heat exchanger 5 is performed by adjusting the throttle of the gate valve 10b on the heat radiation circuit 4 by visually observing the flow meter 10a as shown in FIG. The operation and stop of the gas-liquid heat exchanger 5 itself are controlled by the opening and closing operation of the electromagnetic valve 6C1 disposed downstream of the flow meter 10a of the cold / hot water circulation circuit 6 according to a command of the Humidaystat 9a provided with the humidity sensor 9b. Just do it.

  Therefore, the present invention is a radiant heat radiator disposed in a room by circulating the cold / hot water obtained by the heat source device 2 with a circulation pump, and cooling the room by heat exchange between the circulating cold / hot water and the room air. Alternatively, at the same time as heating is performed, the cold / hot water branched and circulated from the heat dissipation circuit 4 is supplied by the gas-liquid heat exchanger 5 disposed in the supply path of the mechanical ventilator (standard: first type ventilator 7). Air dehumidification or auxiliary heating is possible.

And the cold / warm water circulating through the cold / hot water circulation circuit 6 of the gas-liquid heat exchanger 5 is branched from the heat radiation circuit 4 to the radiator 4a and can be circulated simultaneously with the heat radiation circuit 4. Since it can be controlled independently, during cooling, the gas-liquid heat exchanger 5 can increase the moisture removal capability of the indoor air than the radiator 4a, exhibit a sufficient dehumidification capability, and gas-liquid heat The low-temperature and low-humidity air supplied to the living room via the exchanger 5 suppresses the occurrence of surface condensation on the radiator 4a.
In addition, since the gas-liquid heat exchanger 5 can be disposed in the duct of the mechanical ventilation system, the ventilation system duct can use the conventional method as it is, and provides a radiation cooling / heating / ventilation system that is easy to construct.

In the cooling / heating / ventilation system 1 according to the present invention, for example, as shown in FIG. 1, a humidifier 16 is disposed downstream of the gas-liquid heat exchanger 5 in the air supply path, and the solenoid valve 6C2 is connected from the cold / hot water circulation circuit 6. It is preferable to operate the humidifier 16 with the humidification circuit 60 branched via the.
In this case, the solenoid valve 6C2 may be controlled by a conventional Humidaystat 9a provided with a humidity sensor 9b.
Moreover, the humidifier 16 should just be provided with the usual water spray nozzle.

  Accordingly, in winter heating, outdoor low-temperature and low-humidity air further reduces humidity due to heating. However, if the humidity sensor 9b receives a command to humidify indoor air by the humidity sensor 9b, The valve 6C2 is opened, and the cold / hot water circulation circuit 6 supplies humidification water to the humidification circuit 60 to operate the humidifier 16 and sprays warm water on the heated air that has passed through the gas-liquid heat exchanger 5 to humidify it. The required humidity can be supplied to the heated air in the living room, and the appropriate temperature and humidity can be set in the living room.

  Further, as shown in FIG. 5, the humidifying device 16 of the present invention is in the form of a rectangular tube having a rectangular overall shape, and includes a lower casing 16d having a ship bottom surface 16d 'and an upper casing 16u having a lid shape. In 16u, a plurality of branch pipes 16c provided with spray nozzles 16b penetrate from the upper straight pipe 16a communicating with the humidification circuit 60, and the lower casing 16d is provided with the supply port 16s at the front end and the supply at the rear end. Side connection port 16r, and a bottom cover 16e is detachably attached to a notch 16m over the majority of the bottom surface 16d ', and an eliminator plate 16p for preventing water droplet discharge is provided on the front surface of the supply side connection port 16r. It is preferable that a drain pipe 16g is provided below the eliminator plate 16p.

In this case, the upper casing 16u and the lower casing 16d, and the lower casing 16d and the bottom cover 16e may be detachable with screw means.
Therefore, the humidifier 16 is arranged in the air supply path of the mechanical ventilator in combination with the longitudinal rectangular tube shape by fitting and connecting the front and rear connection ports 16s and 16r to the duct pipe 11a. The nozzle 16b can be adjusted or replaced by opening the bottom lid 16e, and the inside of the casing can be cleaned. The eliminator plate can also mix the splashed water droplets from the spray nozzle 16b into the supply air flow. It can be suitably suppressed at 16p, and high-temperature and low-humidity air flowing from the gas-liquid heat exchanger 5 can be humidified to the required humidity.

Moreover, in the air conditioning / ventilation system of this invention, it is preferable to spray the supply air a10 heat-exchanged with the gas-liquid heat exchanger 5 to the heat radiator 4a.
In this case, the outlet of the supply air a10 may be freely selected with respect to the radiator 4a. However, it is particularly preferable that the supply air a10 be blown over the entire surface of the radiator 4a.

  Therefore, the air supply air a10 is blown onto the heat radiating body 4a when the air is dehumidified during the cooling in summer, because dehumidified air flows on the surface of the heat radiating body 4a, thereby reducing the absolute humidity of the air near the surface of the heat radiating body. In addition to preventing the air layer stagnating on the peripheral surface of the radiator 4a, the convection heat transfer is promoted, and even in winter, the air flow a10 as auxiliary heating is applied to the surface of the radiator 4a. Stir the convection air layer to promote convective heat transfer.

  In the cooling / heating / ventilation system 1 according to the present invention, for example, as shown in FIG. 7, a connection box 11J connected to the duct pipe 11a is arranged on the upper portion of the radiator 4a, and the supply through the gas-liquid heat exchanger 5 is performed. It is preferable that the air air a10 is blown to the heat radiating body 4a from the heat radiating body outlet 14c provided with the adjusting blade 14f of the connection box 11J.

  In this case, the connection box 11J may be connected to the air supply duct pipe 11a, and the outlet may be provided with a conventional adjustment blade 14f for adjusting the wind direction, and is typically shown in FIG. As described above, the upper box 14u is fitted to the bottom plate 14d of the heat radiator outlet 14c provided with the movable adjusting blade 14f, and the duct pipe 11a of the ceiling pipe is connected to the upper box 14u.

  Therefore, the supply air a10 that has passed through the gas-liquid heat exchanger 5 can be sprayed onto the front and rear surfaces of the radiator 4a by the movable adjustment of the adjusting blade 14f, and the air around the radiator 4a is supplied to the supply air a10. As a result of stirring, it is possible to suitably perform dew condensation suppression and convective heat transfer improvement during cooling of the radiator 4a, and supplementary heating and convective heat transfer improvement during heating.

In the cooling / heating / ventilation system 1 of the present invention, the gas-liquid heat exchanger 5 is connected to the duct pipe 11a at the front and back of the long cylindrical body 5a, for example, as shown in FIG. The cold / hot water coil 5b connected to the cold / hot water circulation circuit 6 is arranged in the longitudinal direction of the upper and lower intermediate layers, and a drain pipe 5g is suspended on the lower surface of the rear, and the lower surface of the front end of the cold / hot water coil 5b is closed by the lower wind deflector 5d. and, the upper surface of the hot and cold water coil 5b is configured to close the rear end in the upper air deflector 5u _1, from the rear to the front, the upper air deflector plate group 5u ₂ ~5u ₆ to increase sequentially passing air volume by spacing arrangement The supply air flow a4 is preferably introduced into the upper part of the front end of the cold / hot water coil 5b and discharged from the rear end of the lower surface of the cold / hot water coil 5b.

In this case, each deflection plate is typically inclined forward by 45 ° with respect to the supply air flow a4 as shown in FIG.
Therefore, if the gas-liquid heat exchanger 5 is adopted, the duct body 11a can be connected only by interposing a conventional reducer pipe in the cylinder body 5a. It improves and arrangement | positioning in the ceiling space of a cooling / heating ventilation system of this invention, under a floor, etc. becomes simple and easy.

And a heat exchange function also suppresses the enlargement of the cylinder main body 5a, and a desired capability is obtained by selecting and setting the longitudinal length of the cylinder main body 5a and the cold / hot water coil 5b.
Moreover, since the gas-liquid heat exchanger 5 can be connected to the air supply duct pipe 11a of the ventilation system, the conventional duct ventilation system can be used as it is, and the construction of the cooling / heating ventilation system is easy.

  In the air conditioning / ventilation system 1 of the present invention, for example, as shown in FIG. 1, a total heat exchange type first type ventilator 7 is arranged in a mechanical ventilation system, and the first type ventilator in the air supply path. The gas-liquid heat exchanger 5 is disposed on the outlet side or the inlet side of the air-cooling unit 7, and from the gas-liquid heat exchanger 5, heat is discharged from the gas pipe 17 through the drain pipe 5 g to the soil 17 b such as a self-contained outlet. It is preferable to drain to the trough 17a.

In this case, the drain treatment of the first type ventilation device 7 may be performed by conventional means.
In addition, the drain pipe 17s may be a meandering pipe having a small diameter in the soil gap 17b.
Moreover, the total heat exchange type 1 type ventilator 7 includes, for example, a blower 7b that sucks outdoor air and supplies it to the living room, and a blower 7b that sucks air inside the living room and exhausts it to the outside, as shown in FIG. 6B, for example. 'Is one each, one air filter 7d arranged for intake and exhaust, one heat exchange element 7c, and a duct for guiding the air flow in the ventilation device 7 are each made of steel plate What is necessary is just to employ | adopt the conventional 1st type ventilation apparatus accommodated in the casing 7a, for example, the total heat exchanger (product number: 24HFC12N3) by Kyoritsu Airtech Co., Ltd.

Accordingly, in the present invention, moisture and latent heat removal of the ventilation air taken in from the outside is performed by the first stage total heat exchange type ventilator 7 and the action of the second stage gas-liquid heat exchanger 5. The two-stage cooperative action enables high-efficiency batch processing, and in combination with the radiation heat radiation action of the heat radiating body 4a, the living room can be made into a living environment with appropriate humidity and temperature.
In the gas-liquid heat exchanger 5, the cold / warm water generated by the dehumidifying action at the time of cooling gives a cooling function to the soil 17 b at the entrance and the entrance, and the effective use of the cooling energy for dehumidification makes the temperature environment of the soil 17 b Will also improve.

  In the present invention, the duct system 11a has a ventilation system extending from the underfloor ventilation port 15c through the air filter 12d, the duct fan 12c, the gas-liquid heat exchanger 5 to the outlet 14 under the first floor, The supply air flow taken in from the underfloor ventilation port 15c is processed by the gas-liquid heat exchanger 5 and blown to the partition spaces E1 to E8 below the floor to ventilate the underfloor space and from the underfloor space to each floor vent V It is preferable to ventilate the living room through the door.

In this case, in the underfloor ventilation structure, for example, as shown in FIG. 9A, the air inflow path from the outside to the underfloor is only the underfloor ventilation port 15c for air intake of the duct pipe 11a, and each partition wall of the foundation 18f If a ventilation flow is blown out to a specific one section (E6 section) by a duct pipe 11a, an underfloor vent 15d is arranged between them and the sections E1 to E8 partitioned by the foundation 18f are all sections E1 to E8. It may be in a form that can be fed into the air.
In addition, if at least one of the floor ventilation ports V is disposed in the vicinity of the heat radiating body 4a, it is possible to suppress dew condensation on the outer surface of the heat radiating body 4a and convective heat transfer in the vicinity of the heat radiating body 4a.

Therefore, the present invention allows the large-diameter ventilation equipment piping to be moved under the floor from the ceiling C where electrical piping, emergency equipment wiring, air conditioning equipment piping, ventilation equipment piping, water supply / drainage sanitary equipment piping, etc. are concentrated. Piping work under the floor becomes easy, the work under the floor is not affected by other work, and the construction period can be shortened.
Moreover, under the floor, the humidity is reduced by ventilation. Corrosion of structural wood and steel frames can be prevented. (B). Since it becomes dehumidified air environment, generation of white ants can be prevented. (C). It can be expected to have a specific practical effect, such as the storage space under the floor.

  Further, in the underfloor ventilation system in which the ventilation system is arranged under the first floor and ventilates between the underfloor and the first floor, the air is supplied from a duct pipe 11a arranged under the floor as shown in FIG. 9B, for example. It is preferable to guide the upward vertical duct pipe 11a "to the floor F of the upper floor and to ventilate the upper-floor room from the floor ventilation port V of the upper floor.

In this case, the upper floor is not limited to the second floor, but means the upper floor, for example, the second floor, the third floor, etc., in which the air supply vertical duct pipe 11a ″ is led to the floor F.
Further, as shown in FIG. 9B, the ventilation blowout to the upper floor room is a space between the vertical duct pipe 11a ″ and the upper floor (for example, the second floor) F and the lower floor (for example, the first floor) ceiling C. The air may be supplied from a conventional floor ventilation port V arranged on the upper floor.
Therefore, by appropriately setting the power of the duct fan 12c and the gas-liquid heat exchanger 5, it is an underfloor ventilation system that makes effective use of the underfloor space and is excellent in workability. Ventilation is possible, and under the floor, ventilation and drying can be maintained, and the occurrence of white ants and the hygroscopic decay of building materials can be suppressed.

  In addition, as shown in FIG. 10, for example, the air conditioning / ventilation system 1 of the present invention takes outdoor air into the room through a natural air inlet 13b and exhausts the air from the indoor air inlet 15b through the duct fan 12c through the outdoor air outlet 14a. In the so-called third type ventilation system, the air intake duct pipe 11a under the first floor reaches the air supply duct pipe 11a below the first floor via the descending vertical duct pipe 11a 'from the indoor air inlet 15b on the ceiling. It is preferable to ventilate each compartment space E1 to E8 below the first floor from the outlet 14 through the air outlet 12d, the duct fan 12c, and the gas-liquid heat exchanger 5 and to ventilate the room from the floor ventilation port V.

In this case, the inflow of air under the floor may be limited to the inflow of the descending vertical duct pipe 11a ', and the underfloor vent 15d for ventilation air is provided in each base 18f that partitions the partition spaces E1 to E8 under the floor. (Standard: 100 mm diameter circular hole) may be arranged.
Therefore, in the present invention, the peculiar effect of the arrangement of the ventilation system under the floor, that is, the large-diameter ventilation equipment piping can be moved under the floor. It is not affected and the construction period can be shortened. The underfloor space becomes a dehumidifying environment, so that the corrosion of structural wood and steel frames can be suppressed, the occurrence of white ants, and the reproduction can be suppressed. Since the operation of the gas-liquid heat exchanger 5 is an operation operation while circulating the air in the room, the heat exchange operation is performed in an environment with a small difference in cooling temperature, and energy can be saved.

  Further, in a cooling / heating ventilation system in which a ventilation system is arranged under the floor and the air supply to the gas-liquid heat exchanger 5 is circulated through the air in the room, for example, as shown in FIG. It is preferable to ventilate the living room from the air supply duct pipe 11a to the ceiling air supply duct pipe 11a via the ascending vertical duct pipe 11a "and from the ceiling air supply duct pipe 11a through the floor ventilation port V.

In this case, the vertical duct pipe 11a ″ may be connected to the in-ceiling air supply duct pipe 11a on each upper floor as necessary.
Therefore, in the present invention, an effect peculiar to the underfloor arrangement of the ventilation system is exhibited, and since it is an energy saving air conditioning operation in the circulating air flow of the gas-liquid heat exchanger 5, for example, under the floor of a middle-rise apartment or the like. It is also possible to carry out overall cooling and heating ventilation of the building from the upper floor to the upper floor.

  In the cooling / heating / ventilation system 1 of the present invention, the cold / hot water circulation circuit 6 divides from the outgoing piping 6 s ′ of the radiation circuit 4 for radiant heating / cooling, circulates in the gas-liquid heat exchanger 5, and returns to the heat dissipation circuit 4 again. Since the heat radiation circuit 4 and the cold / hot water circulation circuit 6 can be separately controlled and operated simultaneously, the circulation water temperature of the gas-liquid heat exchanger 5 is set to be lower than the circulation water temperature of the radiator 4a. The dehumidifying capacity of the radiator 4a can be made higher than that of the radiator 4a, moisture in the living room can be efficiently dehumidified, and the air conditioning system can suppress the occurrence of condensation on the surface of the radiator 4a.

Further, according to the present invention, the gas-liquid heat exchanger 5 is arranged in the air supply path of the mechanical ventilation device, so that the duct of the ventilation system can use the conventional system as it is, and is a radiation type air conditioning ventilation that is easy to construct. System.
Further, the gas-liquid heat exchanger 5 can collectively process moisture in the air supplied from the outside air by ventilation, and the latent heat load of a house or the like is mostly supplied from the outside air by the ventilation. Design is also easy.
And since the air conditioning ventilation system of this invention only attaches a gas-liquid heat exchanger to the ventilation system prescribed | regulated by the Building Standard Law, a high-performance air conditioning ventilation system can be easily constructed at low cost. .

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole explanatory diagram of the air conditioning ventilation system 1 of this invention. It is flowing water circuit explanatory drawing of this invention, Comprising: (A) is a circuit diagram, (B) is a disassembled perspective view of a flow volume adjustment socket. It is explanatory drawing of a gas-liquid heat exchanger, (A) is a vertical side view of a use state, (B) is a perspective view, (C) is a vertical side view, (D) is an arrow D view of (B). The figure (E) is the arrow E view figure of (B). It is explanatory drawing of a cold / hot water coil, Comprising: (A) is a flow diagram of the circulation coil 5c, (B) is a BB line longitudinal cross-sectional view of (A), (C) is a perspective view of a fin. It is explanatory drawing of a humidifier, Comprising: (A) is a whole perspective view, (B) is a vertical side view, (C) is a vertical front view, (D) is an exploded perspective view. BRIEF DESCRIPTION OF THE DRAWINGS It is ventilation explanatory drawing of this invention, Comprising: (A) is the whole airflow circuit diagram, (B) is the structure schematic diagram of the 1st type ventilation apparatus 7, (C) is the connection longitudinal section of the ventilation apparatus 7 and the duct pipe 11a. FIG. 4D is a connection longitudinal sectional view of the gas-liquid heat exchanger 5 and the ventilation device 7. It is explanatory drawing of the connection box 11J, (A) is a use condition front view, (B) is a use condition side view, (C) is an exploded perspective view of a connection box. It is a modification example of the present invention, (A) is a schematic top view of modification 1, (B) is a schematic top view of modification 2, (C) is a schematic top view of modification 3. . It is explanatory drawing of the modification 4 of this invention, Comprising: (A) is an underfloor top view, (B) is a schematic side view of an airflow circuit. It is explanatory drawing of the modification 5 of this invention, Comprising: (A) is an underfloor top view, (B) is the schematic side view of an airflow circuit. It is a prior art example, Comprising: (A) is a schematic explanatory drawing of the prior art example 1, (B) is a schematic explanatory drawing of the prior art example 2. It is a prior art example, (A) is a schematic explanatory drawing of the air heat exchanger for dehumidification of the prior art example 3, (B) is a vertical side view of the room air conditioner of the prior art example 4.

[Overall configuration of air conditioning / heating system]
As shown in FIG. 1, an air-conditioning / ventilation system 1 embodying the present invention supplies cold / hot water from a heat source device 2 arranged outdoors to a forward header 6a through a circulation pump 3, and returns from a forward header 6a to a return header. Up to 6b, a conventional chilled / hot water circulation type radiant cooling / heating system equipped with a heat radiating circuit 4 returning to the heat source unit 2 from the return side header 6b via the radiant heat radiator 4a of each living room A ventilation system having a dehumidifying and heating function by the heat exchanger 5 and a humidifying function to the dry air by the humidifying device 16 is operated by the cold / hot water circulation circuit 6 branching and joining from the heat radiation circuit 4.

  As shown in FIG. 3, the gas-liquid heat exchanger 5 is in the form of a long cylinder with a short diameter, and is connected to a connection port 7e of a conventional total heat exchange type first-class ventilation device 7 arranged in the ceiling. The passing air connected to the reducer pipe 5J and flowing from the ventilator 7 to the air supply duct pipe 11a is cooled and dehumidified during cooling, and heated during heating. The humidifier 16 is shown in FIG. As shown in FIG. 1, the spray nozzle 16b group is provided in the longitudinal direction and arranged downstream of the gas-liquid heat exchanger 5 in the air supply duct 11a, and is heated by the gas-liquid heat exchanger 5 during heating. The humidified spray water is supplied under the control of the humidity sensor in the humidification circuit 60 branched from the cold / hot water circulation circuit 6 for operating the gas-liquid heat exchanger 5. .

  Further, the cold / hot water circulation circuit 6 for operating the gas-liquid heat exchanger 5 and the humidifier is, as shown in FIG. 2 (A), a large-diameter forward piping from the heat source device 2 of the heat radiation circuit 4 to the forward header 6a. In 6s', the 1st branch point P1 is arrange | positioned by the T-type socket 6m downstream from the circulation pump 3, and it branches off at the 1st branch point P1, and the outgoing side connection port of the gas-liquid heat exchanger 5 from the branch point P1 The fifth branch point P5 of the flow meter 10a, the solenoid valve 6C1, and the T-type socket 6m is arranged in the small diameter forward side pipe 6s "up to 5s, and the forward connection port of the gas-liquid heat exchanger 5 from the fifth branch point P5 5s, and joins via the flow rate adjusting socket 10c from the return side connection port 5r of the gas-liquid heat exchanger 5 to the second branch point P2 of the outgoing side piping of the heat radiation circuit 4, and the humidifying device 16 The humidification circuit 60 is diverted from the branch point P5 via the electromagnetic valve 6C2.

  Further, in the forward piping 6s ′ of the heat radiation circuit 4, a manually operated gate valve 10b is disposed between the first branch point P1 and the second branch point P2, and the water thermometer is sequentially provided downstream of the second branch point P2. 10f, the third branch point P3 of the T-shaped socket 6m, and the electromagnetic valve 6C3 to the forward header 6a. The large-diameter return-side pipe 6r 'from the return-side header 6b to the heat source unit 2 has a manually operated gate valve. 10b ′ and a T-type socket 6m as the fourth branch point P4 are disposed, and the manual connection between the third branch point P3 of the forward side pipe 6s ′ and the fourth branch point P4 of the return side pipe 6r ′ of the heat radiation circuit 4 is manually performed. An electromagnetic valve 6C4 that is connected via a gate valve 10b "and individually controls each radiator 4a is disposed between the forward header 6a of the radiator circuit 4 and each radiator 4a, as shown in FIG. The solenoid valves 6C1 and 6C2 are connected to the Humidaystat 9a by the electric wire 9e. The solenoid valves 6C3 and 6C4 were connected to the thermostat 8a by the electric wire 8e.

  And the cold / warm running water w1 created by the heat source device 2 and sent to the heat radiation circuit 4 at a predetermined temperature reaches the second branch point P2, and the running water w2 branched at the first branch point P1 is separated at the fifth branch point. It enters into the gas-liquid heat exchanger 5 as w3, circulates and radiates heat in the gas-liquid heat exchanger 5, and flows into the second branch point P2 as the return flowing water w4. At the second branch point P2, a predetermined temperature from the heat source unit 2 is reached. In the gas-liquid heat exchanger 5, the return flow water w4 whose temperature has increased during cooling and the temperature decreased during heating merged with the flowing water w1 of the water, and the outgoing flow w5 whose temperature has changed slightly flows into the outgoing header 6a. Then, each radiator 4a is cooled and heated as the distribution flowing water w6, the return flowing water w7 radiated by the radiator 4a enters the return header 6b, returns to the heat source device 2 from the return header 6b, and the radiator 4a is stopped ( In the interim period, cold and hot water for the heat dissipation circuit 4 Only ring circuit 6 is for circulating operation.

[Gas-liquid heat exchanger (Figs. 3 and 4)]
As shown in FIGS. 3B and 3C, the novel gas-liquid heat exchanger 5 used in the present invention is a rigid polyvinyl chloride cylinder body having a length L1 of 890 mm, a wall thickness of 4.5 mm, and an inner diameter r1 of 131 mm. A cold / hot water coil 5b having a length L2 of 650 mm in the longitudinal direction is sandwiched between upper and lower intermediate layers in 5a by upper and lower receiving brackets 5n, and the receiving bracket 5n is fixedly held on the cylinder body 5a with a screw N5. Then, the drain pipe 5g is suspended from the lower surface of the exhaust side Sb of the cylinder body 5a, and the forward side connection port 5s of the built-in cold / hot water coil 5b is inserted from the longitudinal slit notch 5m on the upper surface of the supply side Sf of the cylinder body 5a. The return side connection port 5r protrudes upward.

[Cold / hot water coil (Fig. 4)]
The cold / hot water coil 5b circulates cold / hot water and exchanges heat with an air flow that flows through the gas-liquid heat exchanger 5, and the cold / hot water coil itself is commonly used.
The cold / hot water coil 5b is adapted to be applied to the novel gas-liquid heat exchanger 5 having a short diameter and long cylinder shape according to the present invention. The overall structure is an arrangement of a group of fins 5f as shown in FIG. As shown in FIG. 4C, the length L2 is 650 mm, and each fin 5f is a rectangular aluminum plate having a vertical height h2 of 42.3 mm, a fin width w2 of 106.5 mm, and a wall thickness of 0.12 mm. As shown in FIG. 4, the fins 5f group are arranged in parallel with long circulation coils 5c arranged in parallel in a zigzag cross section with an interval of 0.5 mm, and fins 5f are arranged at both ends of the fins 5f group. The end plates 5e and 5e 'having the same shape were fixed to the circulating cold / hot water coil to prevent the fin 5f group from being held and dropped.

As shown in FIGS. 4A and 4B, the circulation coil 5c is arranged in an upper and lower zigzag arrangement with the upper four and the lower four penetrating into the fin 5f group and the end plates 5e and 5e 'at both ends. On the supply side Sf, the forward connection port 5s and the return connection port 5r are erected.
Then, with respect to the coil 5c mounted in the cylinder main body 5a, as shown in FIG. 3C, wind deflector plate groups 5u _{1 to} 5u ₆ inclined at a 45 ° angle to the air supply side Sf are provided at the rear end. The wind deflection plate 5u ₁ closes the upper space Su, and in order to expand the ventilation gap between the 5u ₂ , 5u ₃ and the upper inner surface of the cylinder body 5a, the upright anchor piece an of the wind deflection plate is fixed to the fin 5f. A wind deflection plate 5d for closing the lower space Sd was disposed on the lower surface of the front end of the coil 5c.

Accordingly, as shown in FIG. 2A, the gas-liquid heat exchanger 5 circulates cold water or hot water from the cold / hot water circulation circuit 6 through the outgoing connection port 5s and out of the return connection port 5r. As a result, in the coil 5c, as shown in FIG. 4A, the flow flows in the direction of arrows f1, f2, f3, f4,... F10, and the fins 5f group densely arranged in the radial direction of the cylinder body 5a is cooled or heated. As shown in FIG. 3C, the air supply air flow a4 flowing through the cylinder body 5a flows entirely into the upper space Su of the cold / hot water coil 5b on the air supply side Sf, and the air deflecting plates 5u ₁ With the deflection action of ˜5u ₆ , all the supply air flow a4 flows through the minute space (standard: 0.5 mm) between the fins 5f group from the upper side to the lower side to receive the heat exchange action, and the cold / hot water coil 5b The air flows out from the lower space Sd as the supply air flow a6.

[Humidifying device 16 (FIG. 5)]
The humidifier 16 arranges a group of spray nozzles 16b for spraying hot water in the longitudinal direction of the upper casing 16u, and converts it into high-temperature and low-humidity air during the heating season from the gas-liquid heat exchanger 5 through the supply side connection port 16s. The hot water is sprayed from the spray nozzle 16b, and the supply air passing through the humidifier 16 is supplied to the living room as high-temperature and high-humidity air, and the bottom surface of the lower casing 16d is sprayed by opening the bottom lid 16e. The nozzle 16b can be adjusted and replaced, and the casing can be cleaned.

  As shown in FIG. 5, the entire configuration of the humidifier is a long rectangular box shape having a width w16 of 150 mm, a height h16 of 150 mm, and a length L16 of 570 mm. The front end and the rear end have duct pipes 11a. As shown in FIG. 5D, the upper casing 16u and the lower casing 16d are integrated by screw fastening, and the lower casing 16d From the vicinity of the air supply side connection port 16s of the surface 16d ', a notch 16m having a length of 440mm and extending over the entire width is provided, and the screw holes H16' on the rising edges on both sides of the bottom cover 16e of the ship bottom form and the lower ends on both sides of the lower casing 16d The bottom cover 16e detachably closes the notch 16m of the lower casing 16d through the screw hole H16 '.

Then, an eliminator plate 16p having a diameter of 100 mm and having a clearance of 30 mm from both sides is provided on the inner end side of the supply side connection port 16r of the lower casing 16d from the connection port 16r through the support piece 16P ′. The drain pipe 16g is suspended from the lower surface of the front portion of the eliminator plate 16p.
Further, the upper casing 16u has a falling edge 16f with a width w16 of 150 mm and a length L16 of 570 mm, and a falling side 16f with a width of 25 mm depending on the upper plate. A group of branch pipes 16c that are perforated and provided with a threaded portion 16t for fastening at the front end and suspended from the straight steel pipe 16a having an outer diameter of 34 mm and a wall thickness of 3 mm at the rear end at intervals of 100 mm are inserted into the through hole H16. The tip of the branch pipe 16c is provided with a conventional spray nozzle 16b of a conical pattern spray integrated with a strainer and having a pressurizing function.

  Therefore, the humidifier 16 connects the straight pipe 16a to the pipe 6S "of the humidifying circuit 60 via the threaded portion 16t, and if the humidifying water is supplied to the straight pipe 16a, each spray nozzle 16b flows through the apparatus. Water is sprayed on the air supply to be humidified, mixing and discharging of sprayed water droplets is prevented by the eliminator plate 16p, and only the humidified air is supplied from the supply side connection port 16r into the living room through the air supply duct 11a. Water collected on the ship bottom 16d 'in the humidifier 16 can be removed by the drain pipe 16g. If necessary, the bottom lid 16e can be opened to maintain the spray nozzle 16b and clean the humidifier 16 It is.

[Connection box (Fig. 7)]
As shown in FIG. 7 (C), the connection box 11J is made of a steel plate with an open bottom, a width 120mm, a height 150mm, and a length 200mm shorter than the left and right width of the radiator 4a, and a connection port. 11e 'is provided with a closing plate 11e, a notch 14m at the center of the bottom plate, and a radiator outlet 14c with a group of adjusting blades 14f on the notch 14m. The box UB rises from the outlet 14c. A fastening plate 11e is fastened via a screw hole H11 'so as to cover the side 14t and cover the notch 11m on the front surface of the box UB. As shown in FIGS. 7 (A) and 7 (B), heat is dissipated. If it arrange | positions on the body 4a, the air supply which flows in through the connection port 11e 'from the air supply duct 11a will be blown down along the front-back surface of the heat radiator 4a by adjustment by the adjustment blade 14f group.

[Construction of air conditioning heating system]
[Construction of ventilation system (Fig. 6, Fig. 7)]
After building the building structure, roof, and outer wall, as shown in FIGS. 6 (C) and 6 (D) in the ceiling C, the total heat exchange type first ventilator 7 manufactured by Kyoritsu Airtech Co., Ltd. The liquid heat exchanger 5 and the humidifying device 16 are hung on the joist on the second floor with conventional suspension bolt means, and the outdoor exhaust port 14a and the outdoor intake port 15a are attached to the outside of the outer wall Wo, and the supply of the gas-liquid heat exchanger 5 is performed. Conventional reducer tubes 5J are arranged on the air side Sf and the supply side Sb.

  The first type ventilator 7 connects the outdoor air supply connection port 7e and the outdoor air intake port 15a, and the exhaust connection port 7e 'and the outdoor air exhaust port 14a via the conventional duct pipe 11a. The indoor air supply connection port 7e and the intake side reducer pipe 5J of the gas-liquid heat exchanger 5 are connected to the exhaust connection port 7e 'and the indoor air intake port 15b on the ceiling surface via the duct pipes 11a. To communicate.

  Next, the supply side reducer pipe 5J of the gas-liquid heat exchanger 5 and the air supply side connection port 16s of the humidifying device 16 are connected by a duct pipe 11a, and ceiling ceilings in each room are carried out, and the ceiling material is stretched. Before wearing, from the supply side connection port 16r of the humidifying device 16 to the indoor air outlet 14b at a predetermined location on the ceiling surface and the connection box 11J disposed on the ceiling C via the ceiling edge 18 on the radiator 4a. Each duct tube 11a is connected and connected.

[Running water circuit (Fig. 1, Fig. 2)]
As shown in the distribution circuit diagram of FIG. 2 (A), the heat-dissipating circuit 4 for cooling and heating is a heat pump type comprising a water heat exchanger or the like that is installed outdoors, and includes a conventional compressor, expansion valve, cold / hot water coil, and the like. A plastic resin pipe (cross-linked polyethylene pipe (JISK6769)) 6s ′ having a large diameter (inner diameter: 20.5 mm, wall thickness: 3.5 mm) is pulled out from the heat source device 2 as the cold / hot water preparation means to the outgoing header 6a. Connecting.

As shown in FIG. 2 (A), the large-diameter forward piping 6s' between the heat source device 2 and the forward header 6a has a T-type socket for the circulation pump 3 and the branch point P1 from upstream to downstream. 6m, gate valve 10b, flow rate adjusting socket 10c for branch point P2, water temperature gauge 10f, T-type socket 6m for branch point P3, and electromagnetic valve 6C3 are sequentially arranged.
Further, a large-diameter return-side pipe 6r ′ from the return-side header 6b to the heat source unit 2 is provided with a gate valve 10b ′ and a T-type socket 6m for the branch point P4, and a T for the branch point P3 in the forward path. A large-diameter pipe 6s ′ bypasses the mold socket 6m and the T-shaped socket 6m for the return point branch point P4, and the gate valve 10b ″ is disposed on the bypass large-diameter pipe 6s ′.

  As shown in FIG. 2 (B), the flow rate adjusting socket 10c itself is made of stainless steel, and is a small-diameter oblique piece protruding at an angle of 45 ° from the center of a straight pipe piece 10d having an inner diameter of 20 mm, a wall thickness of 3 mm, and a length of 75 mm. 10e, large diameter forward pipes 6s' are screwed into the front and rear ends of the straight pipe piece 10d with screw means 6t and 10t, and a small diameter return pipe (gas-liquid) is attached to the tip of the slant piece 10e. The pipe 6r ″ from the heat exchanger 5 is screwed into the screw means 6t and 10t, and the straight pipe piece 10d has an inner diameter larger than the inner diameter of the large-diameter pipe 6s ′, and the inflow from the inclined piece 10e. Water, that is, inflow water from the gas-liquid heat exchanger 5 is smoothly mixed and mixed into the outgoing water flowing in the large-diameter pipe 6s ′.

  Then, a plastic resin pipe (cross-linked polyethylene pipe) 6s having a small diameter (inner diameter: 9.8 m, wall thickness: 1.6 mm) is pulled out from the forward header 6a for the radiator 4a of each room, and an electromagnetic valve 6C4 is interposed. The radiators 4a are connected to the forward connection ports 4s of the radiation radiators 4a, communicated with the return header 6b through the small diameter pipe 6r from the return side connection ports 4r of the radiators 4a, and each of the radiators in which the cold / hot water circulates. The heat radiation circuit 4 for 4a is formed.

Further, from the T-shaped socket 6m at the branch point P1 of the forward path of the heat radiation circuit 4, the same small diameter pipe 6s "as the small diameter pipes 6s, 6r for the heat radiation circuit 4 is extended, and the flowmeter 10a and the electromagnetic valve 6C1. The T-shaped socket 6m for the branch point P5 is connected to the outgoing connection port 5s of the gas-liquid heat exchanger 5 from the branch point P5, and the cold / hot water coil 5b in the gas-liquid heat exchanger 5 is connected. After that, the return side connection port 5r is connected to the flow rate adjusting socket 10c at the branch point P2 of the heat radiation circuit 4, and the cold / hot water circulation circuit 6 for the gas-liquid heat exchanger 5 is formed.
Further, from the T-shaped socket 6m at the branch point P5 of the cold / hot water circulation circuit 6, a humidification circuit 60 is formed in which a small-diameter pipe of the same shape extends through the electromagnetic valve 6C2 and is connected to the straight pipe 16a of the humidification device 16.

[Drain circuit]
From the drain pipe 5g of the gas-liquid heat exchanger 5, a conventional pipe joint is adopted and connected to the small-diameter drain pipe 17s of the soil cooling device 17, and the drain pipe 17s is meandered and connected to the drain 17a. .
Further, the drain pipe 16g of the humidifying device 16 and the drain pipe 7g of the first type ventilation device 7 are connected by a drain pipe 7k to be outdoor drainage.
The cold / hot water circulation circuit 6, the heat dissipation circuit 4, each pipe of the drain circuit, the headers, and the air supply path of the ventilation system are coated with a conventional heat insulating material to prevent condensation and heat loss.

[Air flow circuit (Fig. 6 (A)])
As shown in the air flow circuit of FIG. 6 (A), the air supply of the ventilation system is such that the outdoor air flow a1 is the outdoor intake port 15a → air flow a2 and the first type ventilation device 7 → air flow a4. The liquid heat exchanger 5 → the air flow a6 humidifies the device 16 → the air flow a7 enters the indoor outlet 14b, blows out into the room as the air flow a8, and the diverted air flow a9 blows to the radiator 4a as the air flow a10. put out.
Further, in the air flow exhaust system, room air enters the indoor intake port 15b as the air flow a11, enters the first type ventilator 7 with the air flow a12, and enters the outdoor exhaust port 14a with the air flow a13 → air flow a14. The air flow a15 is discharged outdoors.

[Control system (Fig. 1)]
As shown in FIG. 1, the indoor temperature and the circulating water temperature are controlled by connecting the temperature sensor 8b and the thermostat 8a to the electromagnetic valve 6C4 upstream of the radiator 4a and the electromagnetic valve 6C3 upstream of the forward header 6a through the electric wire 8e.
The indoor humidity is connected to the electromagnetic valve 6C2 of the humidification circuit 60 and the electromagnetic valve 6C1 upstream of the branch point P5 by the electric wire 9e from the Humidaystat 9a and the humidity sensor 9b.

The role of each solenoid valve is shown in the following table.
Solenoid valve Temperature Humidity Summer Winter Other
6C1 compatible Open / humidified, closed / humidified
Closed for 6C2
Corresponding to 6C3 Opening and closing when the temperature drops Opening and closing when the temperature rises All rooms
Corresponding to 6C4 Opening and closing due to temperature drop Opening and closing due to temperature rise Individual room correspondence Note that even if the humidifier 16 is closed due to increased humidity in the winter, the gas-liquid heat exchanger is still in operation, so the room temperature drops. Can be avoided.

The role of the manual gate valve is as shown in the following table.
Gate valve Role
10b For flow rate adjustment
10b 'Opened during air conditioning, closed during interim period
10b "Air-conditioning closed, mid-term open
In addition, the conventional remote control of the heat source unit 2 includes an operation switch, a timer operation switch, a stop switch, a high power operation switch, a modest mode switch, an air conditioning mode switch, a water temperature adjustment switch, a time adjustment switch, a check switch, a timer. A setting switch is attached.

[Operation of air-conditioning and ventilation system (Figs. 1 and 2)]
1. Cooling operation in summer Cooling operation is performed by setting the room air to a suitable temperature (standard: 28 ° C) and suitable humidity (standard: 50%) with the thermostat 8a and the Humidaystat 9a arranged on the partition wall surface of the room. The water supply temperature from 2 to the large diameter pipe 6s ′ is set to 13 ° C. by remote control of the heat source unit 2, and the gate valve 10b ″ on the forward side pipe 6s ′ between the branch point P3 and the branch point P4 is closed. The first type ventilator 7 is driven to absorb outdoor high temperature and high humidity air, and the first type ventilator 7 performs heat exchange and moisture exchange (water vapor exchange) with the low temperature and low humidity air in the room. The air is discharged to the outside as medium temperature and humidity, and the outdoor air is blown to the gas-liquid heat exchanger 5 as medium temperature and humidity, and further cooled and dehumidified to supply cooling and dehumidified air to the living room. Inhale with the seed ventilation device 7, exchange heat and moisture and let it discharge outdoors Reluctant drove radiator circuit 4 and cold water circulation circuit 6.

  In the gas-liquid heat exchanger 5 at the initial stage of operation, as shown in FIG. 2A, the circulating flowing water w1 at 13 ° C. flows from the circulating pump 3 through the water meter 10a and the electromagnetic valve 6C1 from the branch point P1. In w2, it flows into the cold / hot water coil 5b in the gas-liquid heat exchanger 5 from the outgoing connection port 5s and flows through the circulation coil 5c. The flowing air flow a4 is cooled and dehumidified, radiated in the coil 5b, and the flowing water w4 having a standard water temperature of 16 ° C. enters the socket 10c via the slant piece 10e of the flow rate adjusting socket 10c of the flow rate control unit 10. It flowed in.

  Further, the circulating water at 13 ° C. from the T-shaped socket 6m at the branch point P1 passes through the gate valve 10b as the flowing water w1 in the large-diameter pipe 6s ′, and the straight pipe piece of the flow rate adjusting socket 10c at the branch point P2. 10d, merged and mixed with the flowing water w4 from the gas-liquid heat exchanger 5, and circulated in the large-diameter pipe 6s' as the circulating water at 15 ° C. and then flowed into the forward header 6a.

In this case, the flow rate control unit 10 including the flow meter 10a, the gate valve 10b, and the flow rate adjusting socket 10c divides the running water w1 of the set outflow temperature (standard: 13 ° C.) from the heat source unit 2 at the branch point P1, Based on the flowmeter 10a on the cold / hot water circulation circuit 6 side, the flow rate (standard: 3.5 L / min) to the gas-liquid heat exchanger 5 is adjusted by opening and closing the gate valve 10b, and the running water w1 and running water are adjusted in the adjusting socket 10c. w4 is mixed and mixed and sent to the outgoing header 6a through the water temperature gauge 10f. The water supply temperature (standard: 15 ° C.) to the outgoing header 6a is confirmed with the water temperature gauge 10f, Reset the water supply temperature (standard: 13 ° C) as necessary.
The gate valve 10b ″ between the branch point P3 and the branch point P4 is closed, and the solenoid valves 6C3 and 6C4 on the forward side of the heat radiation circuit 4 and the gate valve 10b ′ between the return side branch point P4 and the return side header 6b. Is in a released state.

  Further, during the cooling operation, in the gas-liquid heat exchanger 5, the cold water at 13 ° C. (standard temperature) is radiated by the standard hot water coil 5b and chilled at the standard temperature of 3 ° C. to become the cold water at the standard 16 ° C. Returning to the adjusting socket 10c, it is merged and mixed and flows into the outgoing header 6a as cold water at 15 ° C. (standard temperature). In the heat dissipation circuit, water is sent to each group of radiators 4a via the outgoing header 6a, and the radiator 4a. Due to the cooling heat radiation inside, the temperature reached the standard 22 ° C. and returned to the return side header 6b.

  In this case, since the solenoid valve 6C4 between the forward header 6a and the radiator 4a is connected to the thermostat 8a via the electric wire 8e, if the temperature sensor 8b determines that the room temperature is lower than the set temperature of the thermostat, The solenoid valve 6C4 is operated to stop the circulating water flow to the radiator 4a to prevent an abnormal decrease in the room temperature, and the solenoid valve 6C3 disposed upstream of the outward header 6a of the radiator circuit 4 is connected to the outward header 6a. The running water is opened and shut off according to the instruction of the thermostat, and the operation or stop of the cooling of all the rooms inside the building is controlled.

  Further, since the solenoid valve 6C1 upstream of the branch point P5 of the cold / hot water circulation circuit 6 is connected to the Humiday Stat 9a via the electric wire 9e, the humidity sensor 9b detects the indoor humidity, and the Humiday Stat 9a If the indoor humidity is determined to be equal to or lower than the set humidity, the circulating water flow to the gas-liquid heat exchanger 5 is stopped by a command to the electromagnetic valve 6C1 to prevent a decrease in the indoor humidity. The electromagnetic valve 6C1 The operation of the gas-liquid heat exchanger 5 is controlled, and the electromagnetic valve 6C2 downstream of the branch point P5 is closed during cooling, opened during heating, and supplies warm water to the humidifier 16. The gas-liquid heat exchanger 5 supplies cold dehumidified air by supplying cold water in the summer and hot air by supplying hot water by supplying hot water in the winter, and generates high-temperature and high-humidity air accompanied by humidification in the humidifier 16. The air is supplied into the living room.

Therefore, by the cooling operation, the radiator 4a can be cooled to the set room temperature by radiant heat radiation and the air in the room is dehumidified, so that the human body feels that the room temperature is lower than the set temperature and is refreshing. A cooling environment was obtained.
Moreover, a part of the supply air flow dehumidified by the gas-liquid heat exchanger 5 passes air having a lower temperature and lower humidity than the surface air of the radiator 4a from the radiator outlet 14c of the ceiling connection box 11J along the radiator 4a. Therefore, the surface condensation of the radiator 4a can be prevented, and the drain means for the radiator 4a is not necessary.

And the blown-down airflow a10 from the blower outlet 14c to the heat radiating body 4a stirred the staying air layer on the surface of the heat radiating body 4a, and also promoted the convective heat transfer of the heat radiating body 4a.
Note that the cooling and dehumidifying air blown down from the radiator outlet 14c becomes a cold draft on the front and rear surfaces with respect to the radiator 4a by adjusting the adjusting blade 14f, and flows in a state where no airflow is felt on the floor surface from above. It was.

Further, as shown in FIG. 3C, the dehumidifying action in the novel gas-liquid heat exchanger 5 is such that the supply air flow a4 from the supply side Sf is converted into the lower wind deflection plate 5d of the cold / hot water coil 5b. And the upper wind deflecting plates 5u _{1 to} 5u ₆ flow through the gaps of the fins 5f group from the high pressure upper surface space Su to the low pressure lower surface space Sd of the coil 5b, and supply from the lower space Sd to the supply side Sb, that is, supply In order to blow air to the side duct pipe 11a, the fin 5f group exhibits a high heat exchange rate despite the flow of the supply air flow a4 in a direction orthogonal to the width direction of the fin 5f, and the gas-liquid heat exchanger 5 exhibited a high dehumidifying effect.
In the fin 5f group of the gas-liquid heat exchanger 5, the passing air flow a4 is cleaned by the air filter 7d of the first type ventilation device 7, so there is no adhesion of dust and dust, and the fin 5f group. Periodic cleaning work is no longer necessary.

In addition, the gas-liquid heat exchanger 5 causes the condensed water of the fin 5f group generated by the dehumidifying action to fall to the lower surface of the cylinder main body 5a with an air flow that flows between the fins 5f downward from above, and from the drain pipe 5g, The small-diameter drain pipe 17s was discharged to the outdoor drainage basin 17a through the meandering pipe 17b of the doorway. For example, the temperature was 35 ° C., the humidity was 70%, and the temperature of the circulating water in the gas-liquid heat exchanger 5 was 13. In the case of ℃, flow rate 3.5L / min, air flow 150m ³ / h of the blower 7b, dew condensation water at a temperature of 16 ° C is generated at 43L per day. The coolness was almost halfway between the outdoor and air-conditioned rooms.

  In the living room, the first heat exchanging device 7 of the total heat exchange type performs heat exchange (sensible heat exchange) and moisture exchange (latent heat exchange) with the outdoor high temperature and high humidity air and the low temperature and low humidity air in the room, Since outdoor air is converted into medium-temperature, medium-humidity air and supplied to the living room as cooled and dehumidified air in the gas-liquid heat exchanger 5, the absolute humidity is 25.4 g / The amount of water vapor from kg to 12.9 g / kg was about 50%, and it became a comfortable air environment with a refreshing feeling that felt lower than the room temperature.

2. Heating operation in winter Heating operation is performed by thermostat 8a and Humidaystat 9a arranged on the partition wall Wi surface of the room, the room air is set to a temperature of 22 ° C. and a humidity of 50%, and the large-diameter piping on the outgoing side from the heat source machine 2 The water supply temperature to 6s ′ is set to 45 ° C. by remote control of the heat source device 2, the gate valve 10b ″ on the outgoing side pipe 6s ′ between the branch point P3 and the branch point P4 is closed, and the first type ventilation The device 7 is driven to suck in outdoor low-temperature and low-humidity air, and the first-class ventilation device 7 exchanges heat (sensible heat exchange) and water vapor (latent heat exchange) with high-temperature and high-humidity air in the room. The intake air is warmed by the heat exchanger 5, humidified by the humidifying device 16, heated humidified air is supplied to the living room, and the air in the living room is sucked by the first-class ventilation device 7 and sensible heat latent heat exchange is performed. While discharging to the outdoors, heat dissipation circuit 4, cold / hot water circulation circuit And it operated driving humidification circuit 60.

  In the gas-liquid heat exchanger 5 at the initial stage of operation, as shown in FIG. 2 (A), the circulating water at 45 ° C. passes through the circulation pump 3 through the large-diameter pipe 6s ′, and reaches the small-diameter pipe 6s ”from the branch point P1. The water flows into the forward connection port 5s of the cold / hot water coil 5b in the gas / liquid heat exchanger 5 from the branch point P5 through the branch point P5 in the flowing water w2 and circulates in the cold / hot water coil 5b. In the gas-liquid heat exchanger 5, the air flow a4 flowing from the first type ventilation device 7 is heated to dissipate heat, and the circulating water becomes 40 ° C., and the cold / hot water coil 5b returns. The slant piece 10e flowed into the flow rate adjusting socket 10c from the side connection port 5r with running water w4.

  Also, the 45 ° flowing water w1 flowing into the branch point 2 from the branch point P1 through the gate valve 10b through the large-diameter pipe 6s ′ flows into the large-diameter straight pipe piece 10d of the flow rate adjusting socket 10c and into the slant piece 10e. It merges with the flowing water w4 of 40 ° C. to form a mixed flowing water w5 of 43 ° C., flows through the thermometer 10f, the T-shaped socket 6m, and the electromagnetic valve 6C3, flows into the outgoing header 6a, and flows into the outgoing header 6s with a small diameter. Into the heat radiating body 4a and radiate heat by the heat radiating body 4a to become warm water of 38 ° C. As the flowing water w7 from the return side pipe 6r, the return side header 6b, the gate valve 10b ′, and the T-shaped socket 6m at the branch point P4, 38 The mixture was recirculated to the heat source unit 2 with warm water of ° C., reheated to 45 ° C. with the heat source unit 2, and recirculated to perform a heating operation.

Then, as shown in FIG. 6A, the air flow a5 heated by the gas-liquid heat exchanger 5 flows into the humidifier 16, and the humidified air flow a7 passes through the duct pipe 11a and is blown into the room. The air flow a8 from the outlet 14b and the airflow blown down to the radiator 4a from the radiator outlet 14c having the adjustment blade 14f of the connection box 11J of the ceiling pipe as shown in FIG. A10 was blown into the room, and the room was heated and humidified for comfortable heating.
In this case, as shown in FIG. 1, the electromagnetic valves 6C1 and 6C2 before and after the branch point P5 are connected to the indoor medium 9a by the electric wires 9e, and the electromagnetic valve 6C1 is always open during heating operation. The solenoid valve 6C2 is closed when the humidity in the room becomes higher than the set humidity.

3. In the intermediate period of spring and autumn, as shown in FIG. 2 (A), the manual gate valve 10b 'disposed downstream of the return side header 6b of the heat radiation circuit 4 is closed and the branch point P3 is closed. And the branch valve 10b "disposed on the bypass pipe 6s' between the branch point P4 and the solenoid valve 6C3 upstream of the outgoing header 6a are closed, and the flowing water circuit reaches from the heat source unit 2 to the branch point P3, Only the circuit that diverts from the branch point P1 and enters the gas-liquid heat exchanger 5 and joins at the branch point P to the circuit that enters the branch point P4 and returns to the heat source unit 2 through the bypass pipe 6s ′. Only the flowing water circuit for the gas-liquid heat exchanger 5 and the humidifying device 16 can be operated, and the flowing water to the radiator 4a is closed.
In other words, the humidifier 16 operates when the Humidaystat 9a senses the humidity in the room, and the gas-liquid heat exchanger 5 operates during cooling and heating, and the humidity in the room is lower than the set humidity in the summer. Then, the solenoid valve 6C1 is shut off to stop the circulating water.

  In the middle of spring and autumn, in the water circuit shown in FIG. 2 (A), the manual gate valve 10b 'disposed downstream of the return side header 6b of the heat radiating circuit 4 is closed, and the branch point P3 is closed. And the branch valve 10b "on the bypass pipe 6s' between the branch point P4 and the solenoid valve 6C3 upstream of the forward header 6a are closed, and the flowing water circuit 4 is connected to the heat source unit 2 → the branch point P1 → the branch point P2 → A circuit in which the cold / hot water circulation circuit 6 from the branch point P1 → the gas-liquid heat exchanger 5 → the branch point P2 is added to the branch point P3 → the branch point P4 → the heat source unit 2 route, and the electromagnetic wave from the cold / hot water circulation circuit 6 to the humidifier 16 is obtained. The humidification circuit 60 controlled by the valves 6C1 and 6C2 can flow.

That is, only the gas-liquid heat exchanger 5 and the humidifier 16 can be operated, and the flowing water to the radiator 4a is closed.
Further, the humidifying device 16 is controlled by the Humidaystat 9a detecting and controlling the humidity in the room, and the gas-liquid heat exchanger 5 operates during cooling and heating, and the humidity in the room becomes lower than the set humidity in summer. Then, the solenoid valve 6C1 is shut off to stop the circulating water.

It should be noted that the temperature management in the room may be performed by the water temperature adjustment unit of the heat source unit 2, and the supply temperature in the room is 18.3 ° C at the flow rate to the cold / hot water circulation circuit 6 (standard: 3.5 L / min). The humidity is 12.9 g / kg and the dehumidification amount is 43 L / day, but if the flow rate is set to 4.7 L / min with the gate valve 10 b, the room supply temperature is 17.6 ° C., the absolute humidity is 12.3 g / kg, and the dehumidification amount 44L / day.
And in heating, when air temperature is 21 ° C., circulating water temperature is 45 ° C., flow rate is 3.5 L / min, and the air volume of the blower 7b is 120 m ³ / h, 39.6 ° C. air can be supplied into the living room. If it is 4.5 L / min, 40 degreeC air can be supplied.

  Then, if hot water or cold water is circulated through the gas-liquid heat exchanger 5 as required in the temperature and humidity environment in the living room, necessary high-temperature humidified air or low-temperature and low-humidity air can be provided to the living room. In the intermediate period, the cooling / heating in the radiator 4a is suspended, and only the operation of the gas-liquid heat exchanger 5 and the humidifying device 16 enables the cooling / heating corresponding to the intermediate period (spring, autumn). .

[Variation of ventilation system]
1. Modification 1 (FIG. 8A)
FIG. 8 (A) is a schematic diagram of the first modified example of the ventilation system, which is implemented by the first type ventilation method. In the ceiling, the gas-liquid heat exchanger 5 → the humidifier 16 → Since the gas-liquid heat exchanger 5, the humidifier 16, and the first-class ventilation device 7 are stored in the duct 11 in advance and unitized, the field work is easy because they are arranged in the order of the first-class ventilation device 7. become.
Moreover, the ventilation function exhibits the same function as the embodiment of the present invention.

2. Modification 2 (FIG. 8B)
FIG. 8B is a schematic diagram of a second modification of the ventilation system, in which the first type ventilation method according to the embodiment of the present invention is changed to the second type ventilation method, and the exhaust is the natural exhaust port 13a. Because it is a type 2 ventilation method, the ventilation system is not equipped with a heat exchange (sensible heat, latent heat) system, and is composed of a duct fan 12c and an air filter 12d. Therefore, it is less expensive than the embodiment of the present invention or the first modification.

3. Modification 3 (FIG. 8C)
FIG. 8C is a schematic diagram of a third modification of the ventilation system, in which supply air is taken in from the natural air inlet 13b, and exhaust air is passed through the duct fan 12c and the outdoor air outlet 14a via the duct pipe 11a. The air-liquid heat exchanger 5 and the humidifying device 16 do not communicate with the natural intake port 13b and the outdoor exhaust port 14a, and the indoor air is supplied from the indoor intake port 15b. This is a third type ventilation method that flows into the gas-liquid heat exchanger 5 and the humidifying device 16 from the duct fan 12c with low power consumption via the duct pipe 11a, and supplies and circulates through the indoor outlet 14b to the room. The heat exchanger 5 and the humidifier 16 have no restrictions on the arrangement position, and the construction arrangement is free.

4). Modification 4 (FIG. 9)
FIG. 9 is a schematic diagram of a fourth modification of the ventilation system, in which (A) is a top view below the floor, and (B) is a side view relating to the upper and lower floors.
In the fourth modification, the gas-liquid heat exchanger 5, the duct fan 12c, and the air filter 12d are arranged in the first floor under the duct pipe 11a. As shown in FIG. 9A, the foundation outside the foundation section E1 is arranged. An underfloor ventilation port 15c is arranged at the rising portion of 18f, suspended from the first floor, an air filter 12d and a duct fan 12c in the section E2, a gas-liquid heat exchanger 5 in the section E4, and a duct. The gas / liquid heat exchanger 5 is connected by the pipe 11a, and the gas-liquid heat exchanger 5 is connected to the return side pipe 6s "of the cold / hot water circulation circuit 6 branched from the heat dissipation circuit 4 and the return side pipe 5s. 6r ″ is connected to the return side connection port 5r, and the drain pipe 7k is projected from the drain pipe 5g to the outside from the rising portion of the foundation 18f.

And it connects to the duct pipe | tube 11a arrange | positioned to the division E6 from the rear end of the gas-liquid heat exchanger 5, and the blower outlet 14 provided with the air quantity adjustment damper 12f is orthogonally arranged from the duct pipe | tube 11a of the division E6.
Further, in the section E4, a vertical duct pipe 11a ″ that branches from the duct pipe 11a to the section E6 is provided upright, and a tip thereof is bent in the lateral direction between the first-floor ceiling C and the second-floor floor.

Further, at the rising part of each foundation 18f in the building, a floor under vent 15d having a diameter of 100 mm is formed by drilling, and cooling dehumidified air or humid air from the outlet 14 orthogonal to the duct pipe 11a disposed in the section E6 is supplied. Air supplied to each compartment group under the floor and air blown from the vertical ventilation duct 11a "into the first floor ceiling C from the floor ventilation port V group arranged on the first floor to the first floor living room is the second floor Supplied to the second floor of each room from the floor ventilation port V.
Exhaust air is exhausted through a natural exhaust port 13a disposed on the outer walls Wo on the first and second floors, and humid rooms such as kitchens, toilets, and bathrooms are controlled and exhausted by electrical control using a ventilation fan 14e.

That is, the ventilation system of the modification 4 takes outdoor air from the underfloor ventilation port 15c through the duct pipe 11a, cleans it with the air filter 12d, cools and dehumidifies it with the gas-liquid heat exchanger 5, or humidifies it. The adjustment damper 12f adjusts the air volume and blows air from the air outlet 14 to each space below the floor, while the first floor floor ventilation port V sends air to the first floor, and the vertical duct pipe 11a "sends air to the second floor. The air is blown between the second-floor living rooms through the mouth V, and the underfloor, first-floor room, and second-floor room are ventilated.
And the humidification apparatus 16 should just be integrated in a ventilation system as needed.

Therefore, since the ventilation system of the modification 4 can fully exhibit an air-conditioning / heating effect in a highly air-tight and highly insulated building, the under-floor air has no stagnation and less moisture due to under-floor ventilation;
(I). Prevent corrosion of structural wood and steel frame,
(B). Prevent the generation of white ants by dehumidifying under the floor,
(C). The floor can be replaced with storage space;
In the ceiling C, large-diameter ventilation equipment piping can be moved under the floor from inside the ceiling C where electrical piping, emergency equipment wiring, air conditioning equipment piping, ventilation equipment piping, water supply and sanitation equipment piping, etc. are concentrated. Also, piping work under the floor becomes easy, and the work under the floor is not affected by other work, so that the construction period can be shortened.

5. Modification 5 (FIG. 10)
10A and 10B are schematic views of Modification 5 of the ventilation system, in which FIG. 10A is a top view below the floor, and FIG. 10B is a side view showing the upper and lower floor relationship.
Similar to the fourth modification, the fifth modification arranges the gas-liquid heat exchanger 5, the duct fan 12c, and the air filter 12d by the duct pipe 11a in the lower floor of the first floor. Whereas only the duct pipe 11a ″ extends and is arranged in the first-floor ceiling C, the modified example 5 extends the forward-side vertical duct pipe 11a ″ into the first-floor ceiling C as shown in FIG. The difference is that the return side vertical duct pipe 11a 'is connected to the air supply duct pipe 11a below the floor from the inside of the second floor ceiling and the first floor ceiling.

  That is, the ventilation system of the modified example 5 is an underfloor ventilation system as shown in FIG. 10 (A), and the cooled dehumidified air or humidified air from the gas-liquid heat exchanger 5 is supplied into the spaces of the sections E1 to E8 under the floor. In addition, air is blown through the underfloor vents 15d, and as shown in FIG. 10 (B), the forward vertical duct pipe 11a "is bent in the first floor ceiling and the tip is connected to the floor vent V. The return-side vertical duct pipe 11a 'is connected to the return-side vertical duct pipe 11a in the second-floor ceiling C and the first-floor ceiling C, which has an indoor air inlet 15b at the tip, and the first-floor room and the second floor The air in the living room is sucked and returned to the air supply system under the floor again by the vertical duct pipe 11a '.

  That is, the ventilation system of the modified example 5 (FIG. 10) uses the air filter 12d under the floor, the duct fan 12c, the gas-liquid heat exchanger 5, and the supply air processed by the humidifier 16 additionally arranged as necessary. While blowing air to each space under the floor, it blows out from the floor ventilation port V below the first floor to ventilate the first floor room, and blows out from the second floor floor ventilation port V from the outgoing side vertical duct pipe 11a "to ventilate the second floor room. The closed-circulation ventilation system returns the intake air from the indoor inlet 15b group on the first floor ceiling C and the indoor inlet 15b group on the second floor ceiling C to the ventilation system below the floor again by the return side vertical duct pipe 11a '.

  As shown in FIG. 10B, a duct fan 12c for a conventional 24-hour planned ventilation system is arranged in the ceiling C on the first floor and the second floor, and the indoor air is sucked through the indoor air inlet 15b. Then, the air is discharged from the outdoor exhaust port 14a, and the air supply is taken in from the natural air supply port 13b arranged on the outer wall Wo surface, and the necessary exchange between the closed circulation ventilation air and the outside air is performed in the room.

  Therefore, the underfloor ventilation system of the modified example 5 (FIG. 10) has the advantages (i), (b), and (c) peculiar to the underfloor ventilation system of the modified example 4 (FIG. 9). Since the floor ventilation port V on the second floor communicates with the duct pipe 11a, the thermal efficiency of the blown air is high. (E). Since the ventilation system circulates the air in the room, it obtains a unique effect such as a small temperature difference in cooling or heat treatment, and energy saving operation.

DESCRIPTION OF SYMBOLS 1 Air-conditioning / ventilation system 2 Heat source machine 3 Circulation pump 4 Radiation circuit 4a Radiator 4r, 5r Return side connection port 4s, 5s Outward side connection port 5 Gas-liquid heat exchanger 5a Cylinder body 5b Cold / hot water coil 5c Circulation coil 5d Lower side wind Deflection plate (wind deflection plate)
5e, 5e' end plate 5f fins 5 g, 16g drain pipe 5J reducer pipe 5m, 14m, 16m notch 5n pivot bracket _{5u 1, 5u 2, 5u 3} , 5u 4, 5u 5, 5u 6 upper wind deflector (wind deflector Board)
6 Cold / hot water circulation circuit 6a Outward header 6b Return header 6C1, 6C2, 6C3, 6C4 Solenoid valve 6m T-type sockets 6r, 6r ', 6r "Return side piping (piping, pipe)
6s, 6s', 6s "Outward piping (piping, pipe)
7 First type ventilation device 7a Casing 7b, 7b "Blower 7c Element 7d, 12d Air filter 7e, 7e ', 11e Connection port 7k Drain pipe 8a Thermostat 8b Temperature sensor 8e, 9e Electric wire 9a Humidaystat 9b Humidity sensor 10a Flow meter 10b, 10b ', 10b "Gate valve 10c Flow rate adjusting socket 10d Large diameter straight pipe piece (straight pipe piece)
10e Slope 10f Water temperature gauge 11 Duct 11a Duct pipe 11a ', 11a "Vertical duct pipe 11J Connection box 12c Duct fan 12f Air flow adjustment damper 13a Natural exhaust port 13b Natural air inlet 14 Air outlet 14a Outdoor exhaust port 14b Indoor air outlet 14c Radiator outlet 14e Ventilation fan 14f Adjusting blade 15a Outdoor air inlet 15b Indoor air inlet 15c Underfloor vent 15d Underfloor vent 16 Humidifier 16a Straight pipe 16b Spray nozzle (nozzle)
16c Branch pipe 16d Lower casing 16d 'Ship bottom surface 16e Bottom lid 16p Eliminator plate 16r Supply side connection port 16s Air supply side connection port 16u Upper casing 17a Drainage 17b Dirt 17s Drain piping 18f Foundation 60 Humidification circuit C Ceiling E1, E2, E3 , E4, E5, E6, E7, E8 Partition space F Floor P1, P2, P3, P4, P5 Branch point Sd Lower space Su Upper space V Floor ventilation port Wo Outer wall Wi Partition wall

Claims (11)

Heat radiated from the heat source machine (2) for producing cold / hot water to the heat radiating body (4a), the return side header (6b), and the heat source machine (2) through the forward header (6a) by the circulation pump (3) The circuit (4) is diverted from the first branch point (P1) downstream of the circulation pump (3) of the outgoing side pipe (6s') of the heat dissipation circuit (4), and passes through the gas-liquid heat exchanger (5). A cold / hot water circulation circuit (6) that returns to the return pipe (6s') of the heat dissipation circuit (4) is attached, and a gas-liquid heat exchanger (5) is placed in the air supply path of the mechanical ventilation system. The cooling / heating ventilation system operates the radiator (4a) and the gas-liquid heat exchanger (5) by adjusting the temperature and humidity of the room, the temperature and flow rate of the radiator circuit (4) and the cold / hot water circulation circuit (6). And
The gas-liquid heat exchanger (5) connects the longitudinal cylinder body (5a) to the air supply path of the mechanical ventilation system, and the cylinder body (5a) is connected to a cold / hot water circulation circuit (6). The cold / hot water coil (5b) is arranged in the longitudinal direction of the upper and lower intermediate layers, the lower surface of the front end of the cold / hot water coil (5b) is closed by the lower wind deflector (5d), and the upper surface of the cold / hot water coil (5b) is The rear end is closed by the upper wind deflection plate (5u1), and the upper wind deflection plate groups (5u2 to 5u6) are spaced apart in the longitudinal direction so that the supply air flow (a4) is transferred to the upper front end of the cold / hot water coil (5b). An air-conditioning / ventilation system that is introduced into the hot-water coil (5b) and discharged from the rear end of the lower surface .   A humidifier (16) is disposed downstream of the gas-liquid heat exchanger (5) in the air supply path, and the humidifier is connected to the humidifier circuit (60) branched from the cold / hot water circulation circuit (6) via the solenoid valve (6C2). The air conditioning / ventilation system according to claim 1, wherein (16) is operated.   The humidifier (16) is in the form of a rectangular square tube and comprises a lower casing (16d) having a ship bottom (16d ') and an upper casing (16u) in the form of a lid. The upper casing (16u) is a humidifier. A plurality of branch pipes (16c) provided with spray nozzles (16b) penetrate from the upper straight pipe (16a) communicating with the circuit (60), and the lower casing (16d) is connected to the air supply side connection port at the front end. (16s) and a supply-side connection port (16r) at the rear end, and a bottom lid (16e) is detachably attached to a notch (16m) over the majority of the ship bottom surface (16d '), and a supply-side connection port The air conditioning / ventilation system according to claim 2, wherein an eliminator plate (16p) for preventing water droplet discharge is provided on the front surface of (16r), and a drain pipe (16g) is provided below the eliminator plate (16p).   The cooling and heating ventilation system according to claim 1, 2 or 3, wherein the supply air (a10) heat-exchanged by the gas-liquid heat exchanger (5) is blown to the radiator (4a).   The connection box (11J) connected to the duct pipe (11a) is arranged on the upper part of the radiator (4a), and the supplied air (a10) via the gas-liquid heat exchanger (5) is connected to the connection box (11J). The cooling and heating ventilation system according to claim 4, wherein the heat radiator (4a) is blown from a heat radiator outlet (14c) provided with adjusting blades (14f). Gas-liquid heat exchanger (5) is suspended a drain pipe (5 g) to the rear lower surface, upper wind deflecting plate group and (5U2～5u6), from the rear to the front, the interval arranged to increase sequentially passing air volume the air conditioning and heating ventilation system according to any one of claims 1 to 5.   A total heat exchange type 1 ventilator (7) is arranged in the mechanical ventilation system, and a gas-liquid heat exchanger (5) is installed on the outlet side or the inlet side of the type 1 ventilator (7) in the air supply path. Arranged and discharged from the gas-liquid heat exchanger (5) through the drain pipe (5g) through the drain pipe (17s) to the soil (17b) such as a doorway, and then discharged to the drainage basin (17a). The air-conditioning / ventilation system according to claim 1.   A duct pipe (11a) allows the ventilation system from the underfloor ventilation port (15c) to the air outlet (14d) through the air filter (12d), the duct fan (12c), the gas-liquid heat exchanger (5), and the air outlet (14) to be located under the first floor. The air supply air flow that is arranged and taken in from the underfloor ventilation port (15c) is processed by the gas-liquid heat exchanger (5) and blown to each partition space (E1 to E8) under the floor to ventilate the underfloor space. The air conditioning / ventilation system according to claim 1, wherein the room is also ventilated from the underfloor space through each floor ventilation opening (V).   An upward vertical duct pipe (11a ") for supplying air is led from the duct pipe (11a) arranged under the floor to the upper floor (F), and the upper-floor room is ventilated from the upper floor vent (V). Item 9. The air conditioning and ventilation system according to Item 8.   In a ventilation system in which outdoor air is taken into a room through a natural air inlet (13b) and exhausted from an indoor air inlet (15b) through a duct fan (12c) through an outdoor air outlet (14a), the ceiling indoor air inlet From (15b) to the air supply duct pipe (11a) under the first floor via the descending vertical duct pipe (11a '), the air supply duct pipe (11a) under the floor includes an air filter (12d), a duct fan ( 12c), through the gas-liquid heat exchanger (5), ventilate each compartment space (E1 to E8) below the first floor from the outlet (14), and ventilate the room from the floor vent (V). Item 2. The air conditioning and ventilation system according to Item 1.   From the air supply duct pipe (11a) under the floor to the air supply duct pipe (11a) in the ceiling via the upward vertical duct pipe (11a "), the air supply duct pipe (11a) in the ceiling to the floor ventilation port (V) The air conditioning / ventilation system according to claim 9, wherein the interior of the room is ventilated through a wall.

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