JPH031731Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air-conditioning, heating, and hot-water supply system (air-conditioning, heating, and hot-water supply system) for housing complexes such as condominiums, public housing, and the like.

[Prior art and its disadvantages] As an air-conditioning, heating and hot-water supply system in an apartment complex, a heat pump air conditioner for cooling and heating consisting of a fan-type air-conditioning/heating radiator (indoor unit) 01 and an outdoor unit 02 is installed in each dwelling unit as shown in Figure 3. , hot water is supplied from a heat source device 03 installed in each dwelling unit using gas or the like as fuel. A hot and cold water machine and a cooling tower are installed on the roof of the residential building, and the cold and hot water is then circulated through the fan type air-conditioning/heating radiator in each dwelling unit to perform air conditioning and heating. Supply hot water. This method is common.

However, in the above method, the outdoor unit that incorporates a compressor, a heat exchanger for heat dissipation, a fan, etc. is installed on the balcony, etc., so it occupies a large space on the balcony, and the noise of the fan and the hot air generated during cooling cause a nuisance to the neighbors. There was a problem with the impact.
In the other method, the water cooler and hot water tank installed on the rooftop etc. and the piping between each dwelling unit are all heat-insulated, which has the problem of increasing initial costs and running costs.

[Purpose of the present invention] The present invention was proposed in view of the above points.
By reducing the size of the outdoor unit to about 1/3 of the conventional size, we solved the problems related to the installation space of the outdoor unit, noise, and waste heat in the above method,
The purpose of this invention is to propose an air-conditioning, heating, and hot water supply system for apartment buildings that has lower initial and running costs than other systems.

[Configuration of the present invention] The present invention employs the following configuration as a means to achieve the above object.

Each dwelling unit is equipped with a heat dissipation circuit that circulates around the cooling tower that is shared by each dwelling unit, and a compressor unit that circulates refrigerant to the fan-type air-conditioning radiator installed inside each dwelling unit. A cooling circuit consists of a condensing heat exchanger connected to branch piping connected in parallel to each dwelling unit to the heat dissipation circuit surrounding the cooling tower, and a two-system heating system installed in each dwelling unit. A heating circuit configured such that hot water sent from the heat source device circulates through a fan-type air-conditioning radiator of the cooling circuit, and a heating circuit configured such that hot water sent out from the heat source device circulates through a fan-type air-conditioning radiator of the cooling circuit, and hot water sent out from a system different from the heating system of the heat source device is supplied to faucets, bathrooms, etc. A heating, cooling, and hot water supply system in an apartment complex consisting of a hot water supply circuit that leads to a hot water supply circuit.

In the above system, the cooling tower installed on the roof of the residential building is shared by each residential unit, so the return refrigerant from the fan-type heating/cooling radiator placed in each room is pressurized by the compressor of the compressor unit. In the condensing heat exchanger, heat is given to the heat transfer medium circulating in the heat dissipation circuit surrounding the cooling tower, which condenses and reaches the fan-type air conditioning radiator, where the latent heat of vaporization is taken from the indoor air to perform air conditioning. , which returns to the compressor unit again.

In addition, the hot water from one system of the heat source machine, which has two heating parts, is circulated through the fan-type heating/cooling radiator for heating, and the hot water from the other system is sent to the hot water supply circuit. It is supplied to kitchen faucets, bathtubs, showers, etc.

[Embodiment] Fig. 1 shows an embodiment of the present invention, in which 1 is a cooling tower installed on the roof of a residential building and includes a heat exchanger 2 for heat radiation and a fan 3; 4 is a cooling tower in the cooling tower 1; A heat radiation circuit is piped into the residential building via a heat radiation heat exchanger 2, and 5 is a circulation pump installed in this heat radiation circuit 4, and 6 is an expansion tank.

7 is an outdoor unit (compressor unit) that can be installed on the balcony, inside a pipe shaft, inside a shoe closet, in a closet, etc. of each dwelling unit.Inside this outdoor unit 7 are a compressor 8, a condensing heat exchanger 9, An accumulator 10 and a capillary reach tube 11 are incorporated.

12 is the condensing heat exchanger 9 and the heat radiation circuit 4
The heat medium for heat radiation circulating in the heat radiation circuit 4 is connected to the outdoor unit 7 from this branch pipe 12.
It circulates through the condensing heat exchanger 9 inside. 13 is a control valve attached to the branch pipe 12.

14 is a fan-type heating and cooling radiator (indoor unit) installed in the room of each dwelling unit, 15 is a heat exchanger,
16 is Juan.

Reference numeral 17 denotes the heat exchanger 15, the capillary reach tube 11, a condensing heat exchanger 9 that supplies the heat radiation circuit 4 around the cooling tower to condense the refrigerant, a compressor 8,
This is a cooling circuit that circulates through an accumulator 10 and a heat exchanger 15.

In FIG. 2, 18 has two systems of heating parts,
This heat source device 18 is a heat source device that uses gas as fuel, and is provided in each dwelling unit. 19 is a gas meter, and 20 is a gas pipe.

21 is a heating circuit for circulating hot water heated by the heat source device 18 to the fan type air-conditioning/heating radiator 14.

22 is a hot water supply circuit that supplies hot water heated by the heat source device 18 to a faucet 23 installed in the kitchen.

Next, the operation of the above embodiment will be explained.

- Cooling operation During cooling operation, the heat medium for heat radiation in the heat radiation circuit 4 is circulated by the circulation pump 5, and when the cooling switch of the fan-type cooling/heating radiator 14 is turned on, the compressor 8 of the outdoor unit 7 starts operating. At the same time as the start, the control valve 13 opens and the fan type air conditioning/heating radiator 1
After compressing the refrigerant from 4 with compressor 8,
The condensing heat exchanger 9 gives the heat to the radiating heat medium in the radiating circuit 4 that circulates around the cooling tower, returns it in liquid form to the fan-type air-conditioning radiator 14, and the heat exchanger 15 transfers the latent heat of vaporization to the surrounding air. It cools the room by taking it away from the room.

In the case of the embodiment, a certain amount of the heat dissipation medium is constantly circulating inside the cooling tower 1. However, the circulation amount and the capacity of the cooling tower 1 are adjusted depending on the load.

The switch of the fan type air conditioning/heating radiator 14 is OFF.
When the compressor 8 of the outdoor unit 7 stops,
Control valve 13 is closed.

・ Heating operation The heating switch of the fan-type air-conditioning/heating radiator 14 is
When turned on, one system of the heat source device 18 is ignited, and hot water of around 80°C produced here is circulated through the heat exchanger 15 of the fan-type air-conditioning/heating radiator 14 via the heating circuit 21. Then, heating is performed.

- When supplying hot water When the faucet 23 is opened, the flow of water is sensed and a heating section of the heat source device 18 that is separate from the heating system is ignited, and the hot water heated here is sent to the faucet via the hot water supply circuit 22. 23.

[Effects of the present invention] As described above, the present invention incorporates a compressor and a condensing heat exchanger in the outdoor unit, and the heat radiation heat exchanger and this fan are shared throughout the residential building via a heat radiation circuit. Therefore, the following effects are obtained.

a The heat exchanger for heat radiation and this fan, which were the main cause of the increase in size, have been removed from the inside of the outdoor unit, so the size has been reduced to 1/3 compared to the conventional outdoor unit.
It can be downsized to a certain degree.

As a result, even if the outdoor unit is installed on the balcony, it does not take up space and does not emit heat, so the outdoor unit can be placed in a pipe shaft, shoe cabinet, closet, ceiling, under the floor, etc. This greatly contributes to space saving.

b. There is no loud noise or heat radiation from the outdoor unit, so there is no need to worry about disturbing the neighbors.

c. By removing the outdoor unit from balconies, etc., the aesthetic appearance of the building can be improved.

d Since the heat dissipation circuit does not require special heat insulation,
Equipment costs are low, and the cooling tower is shared by the entire residential building, making it an effective energy-saving measure.

e Next, we installed a heat source unit with two heating sections for each dwelling unit, and one system was circulated through the heating circuit to the fan-type air-conditioning radiator for heating. This eliminates the need to install piping from the water cooler/heater installed on the rooftop or the like to the fan-type air-conditioning/heating radiator of each dwelling unit, and to insulate it.

f Next, a hot water supply circuit is installed to share the heating heat source, and hot water can be supplied to various locations from now on.
It is no longer necessary to install piping to supply hot water from a hot water tank to each dwelling unit and to insulate the pipes as in the past.

g Next, since one heat source unit is shared by both the heating circuit and the hot water supply circuit, it is advantageous in terms of space; for example, the compressor unit and heat source unit can be installed in a pipe shaft in a single residential unit. , it is possible to save space.

[Brief explanation of the drawing]

FIG. 1 is an embodiment of the air conditioning and hot water supply system according to the present invention, FIG. 2 is a sectional view of an apartment building in which the entire air conditioning and hot water supply circuit is installed, and FIG. 3 is an explanatory diagram of a conventional cooling system. 1...Cooling tower, 2...Radiation heat exchanger, 3...
Fan, 4... Heat dissipation circuit, 5... Circulation pump, 6
... Expansion tank, 7 ... Outdoor unit (compressor unit), 8 ... Compressor, 9 ... Condensing heat exchanger, 10 ... Accumulator, 11 ...
Capillary reach tube, 12...Branch piping, 13
... Control valve, 14 ... Fan-type heating and cooling radiator (indoor unit), 15 ... Heat exchanger, 16 ... Fan, 1
7... Cooling circuit, 18... Heat source machine, 19... Gas meter, 20... Gas pipe, 21... Heating circuit, 2
2... Hot water circuit, 23... Faucet.

Claims (1)

[Scope of Claim for Utility Model Registration] A compressor unit is provided for each dwelling unit to provide a heat dissipation circuit that circulates around the cooling tower shared by each dwelling unit, and circulates refrigerant to the fan-type air-conditioning/heating radiator installed inside each dwelling unit. A cooling circuit is installed in each dwelling unit, in which the condensing heat exchanger in the compressor unit is connected to a branch pipe connected in parallel to each dwelling unit to the heat dissipation circuit surrounding the cooling tower. a heating circuit configured such that hot water sent out from a heat source device adopting a two-system heating method circulates through a fan-type air-conditioning radiator of the cooling circuit; A heating, cooling, and hot water supply system for an apartment complex consisting of a hot water supply circuit that sends hot water to faucets, bathrooms, etc.