JPH0554935U - Air-conditioning system for highly-ventilated rooms such as toilets and kitchens - Google Patents

Abstract

(57) [Summary] [Purpose] By recovering and using the waste heat in the exhaust gas, the heat drop is reduced and the air conditioning load to the ventilation room such as the toilet room and kitchen is reduced. [Constitution] An indoor unit 10 of a heat pump type air conditioner is provided in a toilet room 1 as a ventilation-rich room.
The indoor unit 10 includes an air conditioning heat exchanger 12 and a blower fan 13. An exhaust duct 14 is piped behind the ceiling of the toilet room 1, and an exhaust intake 14a communicating with the exhaust duct 14 is opened on the ceiling surface. An exhaust fan 15 is arranged inside the exhaust duct 14, and a heat exchanger 16 which constitutes an outdoor unit of an air conditioner is arranged in the vicinity of the exhaust fan 15. The heat exchanger 16 includes a refrigerant pipe 17, a compressor and a switching device. And the like, and is connected to the heat exchanger 12 on the indoor unit 10 side to form a refrigerant circuit therebetween.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an air conditioner for a ventilation / utilization room such as a toilet / kitchen that recovers and uses exhaust heat generated from a ventilation / utilization room such as a toilet room / kitchen.

[0002]

[Prior Art]

 In buildings such as office buildings that have multiple tenants, the hygiene equipment installed in the toilet room for each floor or each tenant has recently become highly functional, for example, flush toilet seats and automatic sensing flush valves for urinals. Alternatively, there are an increasing number of cases where hot water supply facilities for washbasins are installed.

Conventionally, air conditioning in a toilet room is generally referred to as a third type ventilation, and a natural air supply using a glazing window or the like and a room air passage method using a mechanical exhaust such as a fan have been adopted. Along with the higher grade of such sanitary equipment, it is desired that even in such a room, air conditioning be performed at the same temperature as in other general rooms and corridors. Such requirements are also made in ventilation-rich rooms such as kitchens other than toilet rooms.

[0004]

[Problems to be solved by the device]

 However, in a ventilation-rich room such as a toilet room or kitchen, it is indispensable to introduce fresh outside air and exhaust the internal air, and even if conditioned air is introduced as the outside air, it is immediately exhausted, so it is narrow. Even in space, the air-conditioning efficiency was extremely low compared to other places, the energy loss was large, and the air-conditioning load was high, so it was not actually put to practical use.

In a large-scale building, indirect air conditioning can be performed even in a ventilation-rich room such as a toilet room / kitchen due to the inflow of conditioned air from a corridor continuous to a ventilation-intensive room such as a toilet room / kitchen. Since there are one or more tenants in each floor of the building, it is necessary to air-condition each floor or tenant, and this type of indirect air conditioning cannot be expected.

[0006] Therefore, the present invention, by recovering and utilizing the waste heat in the exhaust gas, can reduce the heat drop and reduce the air-conditioning load to the ventilation-intensive room such as the toilet room and kitchen. The air conditioner is provided.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an air-conditioning outlet of an air conditioner that opens in a ventilation-intensive room such as a toilet room or a kitchen, and an exhaust duct that opens one end in the ventilation-intensive room and the other end to the outside. In the toilet provided with, an exhaust side heat exchange section connected to the air conditioner is arranged in the exhaust duct, and a heat pump type refrigerant is provided between the exhaust side heat exchange section and the heat exchange section of the air conditioner. It constitutes a circuit.

[0008]

[Action]

 According to the above configuration, the air-conditioning air blown out from the air outlet of the air conditioner maintains a predetermined temperature in the ventilation-intensive room such as the toilet room and the kitchen. On the other hand, the waste heat in the exhaust gas exhausted from the ventilation rooms such as toilets and kitchens is recovered and circulated and used as a cooling or heating source for air conditioners.

[0009]

【Example】

 An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows, for example, an air conditioning pipe in an office toilet room as a ventilation-rich room according to the present invention. The toilet room 1 is closed to a corridor 2 through a partition 3 such as a wall and a door. It has been cut. The inside of the toilet room 1 is further divided into a washroom 1a and a toilet 1b via a partition 4 in a distribution state.

In the washroom 1a, a washbasin (not shown) and a hot water heater 6 for the washstand are arranged. A urinal 7 is arranged in the toilet 1b, and two western-style toilets 9 are arranged in a state of being partitioned by a partition 8.

Furthermore, the partition 3 of the toilet room 1 is provided with an indoor unit 10 of a heat pump type air conditioner. The indoor unit 10 has a housing 11 in which an air intake 11a is opened to the corridor 2 side and an air outlet 11b is opened in the toilet room 1, and a heat exchanger for air conditioning arranged in the housing 11 (evaporator during cooling). , And constitutes a condenser during heating) 12 and a fan 13 for blowing air.

An exhaust duct 14 is provided behind the ceiling of the toilet room 1, and an exhaust intake port 14 a communicating with the exhaust duct 14 is opened on the ceiling surface. The exhaust port 14b of the exhaust duct 14 communicates with the outside of the building, and an exhaust fan 15 is arranged inside the middle part thereof.

In the vicinity of the exhaust fan 15, inside the duct 14, a heat exchanger (which constitutes a condenser during cooling and constitutes an evaporator) 16 which constitutes an outdoor unit of the air conditioner is arranged. The heat exchanger 16 is connected to the heat exchanger 12 on the indoor unit 10 side through a refrigerant pipe 17 and a refrigerant circulation device 18 such as a compressor and a switch, and a heat pump type refrigerant circuit is formed between the two. There is. A refrigerant pipe 17 connected between the cooling medium circulation device 18 and the heat exchanger 12 is branched midway, and a cooling panel 19 for local cooling or heating provided in the partition 8 of the toilet room 1 is provided. It is connected to the.

In the above configuration, during cooling, the cool air blown into the toilet room 1 through the indoor unit 10 contacts the heat exchanger 16 as a condenser while being discharged to the outside through the duct 14, resulting in heat exchange. Since the cooler 16 deprives the cool heat, the heat drop between the heat exchanger 12 and the evaporator on the indoor unit 10 side can be made small, and as a result, the cooling load can be reduced.

Since the hot air discharged during heating contacts the heat exchanger 16 that is an evaporator, the heat drop between the heat exchanger 12 that is a condenser on the side of the indoor unit 10 and the heat exchanger 16 that is the same is small. The load can also be reduced.

Further, as shown in the drawing, the refrigerant pipe 17 is also switchably connected to the heat exchange section of the water heater 6, so that the high-temperature waste heat taken by the heat exchanger 16 during heating is heated by the water heater 6. It is used for heating the water stored inside by circulating and supplying heat to the.

It is needless to say that the present invention is not limited to the toilet room 1, but can be similarly applied to a ventilation-rich room such as a kitchen.

[0018]

[Effect of the device]

 As described in detail with reference to the embodiments above, in the air conditioner for the ventilation-intensive room such as the toilet and the kitchen according to the present invention, the fresh air-conditioning air blown out from the air outlet of the air-conditioner causes the ventilation-intensive room to reach a predetermined temperature. While being retained, the waste heat in the exhaust gas discharged from the ventilation-rich room is recovered and circulated and used as a cold or hot heat source for the air conditioner, reducing the heat drop during cooling and heating and reducing the air conditioning load. Therefore, it is suitable for air conditioning of ventilation-rich rooms that are provided for each floor or each tenant in a building such as an office building that has multiple tenants.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an air conditioning pipe in a toilet room for an office as an example of a ventilation multipurpose room according to the present invention.

[Explanation of symbols]

 1 Toilet Room (Ventilation Use Room) 10 Indoor Unit 12 Air Conditioning Heat Exchanger 14 Exhaust Duct 15 Exhaust Fan 16 Heat Exchanger 17 Refrigerant Pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Koga 4-33 Kitahamahigashi, Chuo-ku, Osaka City, Osaka Prefecture Obayashi Corporation Main Store

Claims (1)

[Scope of utility model registration request] 1. A toilet equipped with an air-conditioning outlet of an air-conditioning device that opens into a ventilation-rich room such as a toilet room or kitchen; An exhaust side heat exchange section connected to the air conditioner is arranged in the exhaust duct, and a heat pump type refrigerant circuit is configured between the exhaust side heat exchange section and the heat exchange section of the air conditioner. An air conditioner for ventilation-intensive rooms such as toilets and kitchens.