JPS6059489B2 - Air conditioning method using computer generated heat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioning method using heat generated by a computer.

Computer rooms must be air-conditioned to maintain a constant temperature and humidity at all times, but since operating computers generates a large amount of heat, computer rooms require air-conditioning throughout the year.

The present invention relates to a method of utilizing heat generated by a computer as a heat source for heating a space other than a computer room in winter, and as shown in FIG. The packages 2 of the package type air conditioner are arranged to form a cooling water system to each package 2, and the unit 4 of the water heat source heat pump type air conditioner is arranged for air conditioning of the living space 3 other than the computer room 1. Independent from the above cooling water system. Form a heat source water system! In winter, the return water of this cooling water system and the outgoing water of the heat source water system are connected to a water-to-water heat exchanger 5.
It is characterized by heat exchange by. That is, the package 2 cools the computer room 1, and the waste heat from that cooling is recovered via the water-to-water heat exchanger 5 as a heat source for winter heating to the heat pump unit 4. In the past, even when using packages to air condition computer rooms, heat recovery was not performed, and a separate heat source was installed for air conditioning in offices attached to computer rooms, and no packages were used. When using a heat recovery heat pump as a heat source, a large-scale air conditioning system such as installing a heat storage barrel similar to ordinary building air conditioning was used, but the present invention
As shown in the figure, an extremely simple system is used to effectively recover the heat generated by computers.

Hereinafter, the details of the present invention will be explained with reference to FIG. The temperature of the return water after baking the package 2 is, for example, about 3TC, which is maintained at about 32'C throughout the year by the control valve 8 that operates in conjunction with the control valve 8. That is, the amount of circulating water to the cooling tower 9 is controlled by the control valve 8 to keep the temperature of the incoming water constant (approximately 37
f'C), the blowing condition of the package 2 is kept constant throughout the year. In the winter heat recovery operation, heat source water (outgoing water) to, for example, a ceiling-hidden heat pump unit 4 installed for a living space 3 such as an office is passed through a heat exchanger 5 to receive heat.

In this case, the valves 10 and 11 are left open and the valve 12 is closed, the temperature of the heat source water after passing through the heat exchanger 5 is measured by the thermosensor 13, and the heat exchanger is controlled to open and close the control valve 14 that operates in conjunction with this. By controlling the amount of water passing through the vessel 5,
Adjust the water temperature in the tube 18. In addition, the auxiliary heat source 15 (boiler or heat exchanger) is provided in case the heating load of the unit 4 becomes larger than the cooling load of the package 2. Provides heat when the heat source water temperature drops to. This auxiliary heat source 15 is hardly activated during normal operation, and is provided as a supplement for when the heating load becomes abnormally large, such as at the start of heating operation. For example, if the cooling load of the computer room 1 is greater than the heating load of the living space 3, the supply of heat from the auxiliary heat source 15 is only required for a short time, such as when starting the heating operation of the living space 3; When the cooling load of the computer room 1 is smaller than the heating load of the living space 3, the heat recovered from the computer room 1 is used, and then only the insufficient heating load is supplemented by the auxiliary heat source 15. An example of the set temperature of each pipe in this winter heat recovery operation is as follows:
Package outgoing pipe 6 = 37C, package return pipe 17 = 3T
C1 package outgoing pipe 18=25℃, unit return pipe 19=
The operation of the auxiliary heat source 15 is started when the temperature measured by the temperature sensor 16 is 25° C. or lower. In the summer,
The valves 10 and 11 are closed, the valve 12 is opened to cut off the flow of heat source water to the heat exchanger 5, and the amount of water flowing to the cooling tower 21 is controlled by controlling the control valve 20 to match the cooling load of the unit 4. Manage the heat source water temperature accordingly.

In this case as well, the package cooling water is maintained at the same temperature as in winter by the control valve 8. In this way, according to the present invention, which uses a package to cool a computer room and performs heat recovery, a heat pump unit for a living space other than a computer room, such as an office, can be installed in an extremely simple manner without the need for a heat storage tank. The equipment enables the necessary heating operation, achieves energy savings, and makes installation costs extremely low.

Furthermore, in conventional systems with heat storage tanks, the heat source water pipes are open systems, which increases the pump power and increases running costs, but in the present invention, the piping is a closed system, so running costs are significantly reduced. This excellent effect can be obtained.

[Brief explanation of drawings]

FIG. 1 is a piping system diagram showing an embodiment of the method of the present invention. 1...Computer room, 2...Package, 3
... Living space such as office, 4 ... Unit, 5 ... Water-to-water heat exchanger, 15 ...
・Auxiliary heat source.

Claims (1)

[Claims] 1 A water heat source package air conditioner package 2 is arranged in the computer room 1 to form a cooling water system to each package 2, and a water heat source heat pump type air conditioner is used for air conditioning of the living space 3 other than the computer room 1. At the same time, a heat source water system is formed which is independent of the cooling water system, and the return water of the cooling water system and the outgoing water of the heat source water system are transferred to the water-to-water heat exchanger 5 in winter. An air conditioning method that utilizes computer generated heat, which is characterized by heat exchange.