JP2021050890A5

JP2021050890A5 - Air-conditioning system, air-conditioning method and control method for air-conditioning system

Info

Publication number: JP2021050890A5
Application number: JP2019175400A
Authority: JP
Filing date: 2019-09-26
Publication date: 2022-09-01
Anticipated expiration: 2039-09-26

Claims

An air conditioning system using well water,
a first water pump for feeding well water from a well;
a first air-conditioning means for air-conditioning an air-conditioned space by exchanging heat with well water fed by the first water pump;
a heat storage tank for storing well water fed by the first water pump;
a second water pump for feeding well water stored in the heat storage tank;
a second air-conditioning means for air-conditioning the air-conditioned space by exchanging heat with well water fed by the second water pump;
air conditioning system.

The first air conditioning means is
a first heat exchanger for exchanging heat between at least part of the well water fed by the first water pump and the first heat medium;
a first air supply means for supplying air heat-exchanged with the first heat medium to the air-conditioned space;
a first circulation pump that pumps and circulates the first heat medium between the first heat exchanger and the first air supply means;
The air conditioning system of Claim 1.

The first water pump operates in two water feeding modes, a first water feeding mode and a second water feeding mode,
In the first water supply mode, the amount of well water supplied is adjusted so that the outlet temperature of the first heat medium in the first heat exchanger is a predetermined temperature,
In the second water supply mode, the amount of well water supplied is adjusted so that the amount of water stored in the heat storage tank is a predetermined amount.
The air conditioning system of claim 2.

The first air supply means includes an outside air processor that dehumidifies the outside air and supplies the air to the air-conditioned space by exchanging heat between the first heat medium and the outside air,
The first circulation pump circulates to the outside air treatment machine based on the enthalpy of the outside air sucked into the outside air treatment machine and the state of the exhaust discharged from the outside air treatment machine after exchanging heat with the sucked outside air. Adjusting the amount of the first heat transfer medium that causes
The air conditioning system according to claim 2 or 3.

The first air supply means includes a plurality of loads that individually supply air to respective locations in the air-conditioned space,
The second air conditioning means has means for uniformly adjusting the temperature of the entire air-conditioned space.
5. Air conditioning system according to any one of claims 2-4.

The first circulation pump adjusts the amount of the first heat medium to be circulated to the plurality of loads based on the number of the plurality of loads in operation.
An air conditioning system according to claim 5 .

At least some of the plurality of loads are installed in the ceiling space of the air-conditioned space or on a desk arranged in the air-conditioned space, and supply air to the air-conditioned space.
The air conditioning system according to claim 5 or 6.

at least some of the plurality of loads installed behind the ceiling of the air-conditioned space include fan coil units;
The fan coil unit is
a fan that blows air toward the air-conditioned space;
a coil disposed on the side of the air-conditioned space when viewed from the fan and through which a first heat medium that exchanges heat with the air blown from the fan passes;
a plate-shaped member provided between the fan and the coil and having a plate surface arranged to block the air blown out from the fan;
Air conditioning system according to any one of claims 5 to 7.

The second air conditioning means is
a second heat exchanger for exchanging heat between the well water supplied by the second water pump and the second heat medium;
a second circulation pump that pressure-feeds and circulates the second heat medium between the second heat exchanger and the second air conditioning means;
The second water supply pump adjusts the amount of well water supply so that the outlet temperature of the second heat medium in the second heat exchanger reaches a predetermined temperature.
Air conditioning system according to any one of the preceding claims.

An air conditioning method using well water,
a first air-conditioning step of air-conditioning the space to be air-conditioned by exchanging heat with the well water fed by the first water pump;
a water storage step of storing well water fed by the first water pump in a heat storage tank;
a second air-conditioning step of air-conditioning the air-conditioned space by exchanging heat with well water fed by a second water pump that feeds well water stored in the heat storage tank;
air conditioning method.

A control method for an air conditioning system using well water,
a first air-conditioning step of air-conditioning the space to be air-conditioned by exchanging heat with the well water fed by the first water pump;
a second air-conditioning step of air-conditioning the air-conditioned space by exchanging heat with well water fed by the first water pump and stored and fed by a second water pump that feeds well water;
How to control the air conditioning system.