JPS6222927A - Method for cooling and heating building by utilizing geothermal heat storage - Google Patents

Abstract

PURPOSE:To realize a substantial energy saving and decrease an expenditure of heating and cooling operation by a method wherein underground water is supplied to a heat collecting water tank, the underground water is agitated, gas in the water tank is sucked to heat or cool a room through aeration passages formed in a circumferential wall of a building and in a garret or the like. CONSTITUTION:Underground water taken up from underground through an underground water sucking pipe 1 is supplied to a heat collecting tank 2 by a supplying pipe 1a, gas is supplied from an outer agitating blower 4 into underground water 3 in the heat collecting water tank 2 to agitate the underground water 3, the gas in the heat collecting water tank 2 is forcedly sucked from above the agitated underground water 3 under operation of a suction-type turbo-type blower 5 and then supplied to a hot or cold water accumulation part 7 formed at the ground under a floor. Gas in the hot or cold water accumulation part 7 is supplied to aeration passage 8a, 8b... 8e formed at an under-floor part, a circumferential wall, a ceiling space and a garret or the like of a building 6 so as to heat or cool the indoor part 12. With this arrangement, a substantial energy-saving can be realized and at the same time an expenditure of heating or cooling can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of heating or cooling the inside of a building using geothermal heat.

(Prior art) Although the underground temperature at a depth of several meters to several meters below the ground varies somewhat depending on the region, it remains almost constant throughout the year, and is approximately 1.
The temperature is about 2 to 15°C. This geothermal heat is higher than the outside temperature in the winter and lower than the outside temperature in the summer. Therefore, it is known to supply this geothermal heat under the floor or indoors for heating in winter, and to use beans for cooling.

(Problems with conventional technology) However, all of the conventional geothermal utilization methods have invasiveness and disadvantages. ! The reality is that heat cannot be used effectively and it has not yet been fully put into practical use.

(Means for Solving the Problems) An object of the present invention is to effectively utilize geothermal heat for heating and cooling buildings to achieve significant energy savings and to reduce heating and cooling costs.

In order to achieve the object described in 1-, the present invention does not supply #A heat to the building to heat and cool the room, but instead uses geothermal heat while storing it in a cold storage heat section, or after it has been stored once. It is designed to be used. The present invention is also designed to prevent dew condensation that occurs on the surrounding walls and ceilings of buildings during the cold season.

As shown in FIG. 1, the invention of claim 1 supplies surface water taken out from underground by a groundwater pump l to a heat collecting tank 2 through a supply pipe la, and Gas is supplied into the ground water 3 from an external stirring blower 4 to stir the ground water 3.

The gas in the heat collecting water tank 2 is forcibly sucked by the suction turbo blower 5 from the L force of the agitated surface water 3 and supplied to the cold storage heat sink 7 formed in the ground under the floor of the dyed material 6. The gas in this cold storage heat section 7 is passed through ventilation channels 8a, 8b, etc. formed in the surrounding wall under the floor of the building 6, the ceiling space, the attic, etc.
8e (Fig. 7) to heat or cool the room 12.

The invention recited in claim 3 not only supplies the gas in the heat collecting water tank 2 to the cold storage heat unit 7, but also supplies the gas in the heat collecting water tank 2 to the cold storage heat unit 7, and also supplies the gas in the heat collecting water tank 2 to the cold storage heat unit 7. All or part of the channels 8a, 8b, . . . 8e are also directly supplied.

(Embodiments) FIGS. 1 and 2 show the principle of the present invention, and FIGS. 3 to 6 show various embodiments of the present invention.

Of these, the ones shown in Figures 3 and 5 are suitable for heating or cooling general homes, and the ones shown in Figure 4 are suitable for use in offices, hospitals, public facilities, general housing, doffing, and cage sheds. The one shown in Fig. 6 is suitable for heating or cooling the floors of indoor spaces such as greenhouses for cultivating plants, gardening facilities, etc.

The one in Figure 3 is the suction turbo type blower 5 in Figures 1 and 2.
The gas in the heat collection water tank 2 is supplied from.

JI under the floor of building 6 by gas supply pipe 9! It is drawn into the cold storage heat section 7 formed in the gas supply pipe 9 and supplied to the ventilation passages 8a to 8e (FIG. 7) of the building 6 through a lead-in pipe 10 branched from the gas supply pipe 9 to heat the interior of the room 12. Or it is air-conditioned. The gas supply pipe 9 is installed in the cold storage heat section 7 in a meandering manner as shown in FIG.

In the system shown in FIG. 4, the substrate in the heat collecting water tank 2 is supplied to the ventilation channels 8a to 8e of the building 6 through a lead-in pipe 10 branched from the gas supply pipe 9 to heat or cool the room 12. , the gas supply pipe 9 is arranged in a meandering manner as shown in FIG. The floor 13 of the building 6 is heated or cooled.

In the system shown in FIG. 5, cold air or hot air supplied from a gas supply pipe 9 is supplied to a cold storage heat section 7, and hot or cold air is taken out from the cold storage heat section 7 through a pipe 14, and is taken out from the outlet 14a. The air is supplied to a ventilation passage 8a of the building 6, and from this ventilation passage 8a to other ventilation passages 8b to 8e to heat or cool the interior 12 of the building 6.

The dot end 14b of the take-out pipe 14 is widened so that hot air or cold air can be taken out efficiently from the cold storage heat section 7. Reference numeral 15 designates a bellows-shaped extendable portion of the extraction pipe 14.

The one shown in FIG. 6 supplies cold or warm air supplied from a gas supply pipe 9 to a cold storage heat section 7, and uses the warm or cold air accumulated here to heat or cool a floor 13 of a building 6. This is the cold storage heat section 7 in Figures 4 to 6.
The gas supply pipe 9 buried inside has an eighth pipe on its peripheral wall.
As shown in the figure, a large number of through holes 16 are formed, from which cool air or hot air is released, and the cool air or hot air is transferred from the gas supply pipe 9 to the cold storage heat section 7. Although heat may be stored efficiently within the cooling heat storage section 7, this increases the humidity within the cold storage heat storage section 7, so if you dislike humidity, the through holes 16 may not be formed.

In Figures 3 to 6, 17 is the first sand layer of the F-most layer, 18
19 is a plastic film installed on top of that, 19 is a second sand layer on top of that, 20 is a heating surface of raw or processed stone placed on top of that, or a material made from rice husks that has been processed by chemical treatment. 21 and 22 are heat-insulating materials, 23 are conventional materials, and 24 is a foundation stone for the building 6.

Reference numeral lb in FIGS. 1 and 2 is a branch pipe, which supplies a portion of the groundwater pumped up by the underground water pumping pipe L to the heat pump 26 for cooling.

42 is a drain pipe that discharges the cooling water discharged from the P1 pump 26, and 43 is a JI! Heat collection water tank 2 where heat was collected
44 is a return pipe that returns part of the gas in the ventilation path 8b of the building 6 to the heat collecting water tank 2, and 45 and 46 are small holes formed underground.

Reference numeral 47 denotes a circulation pipe for returning indoor air to the ventilation path 8b, which passes from the ceiling through the ventilation path 8d in the side wall of the building, and then through the cold storage heat section 7 and opens into the ventilation path 8b.

48 is a dehumidifier installed in the middle of the circulation pipe, and 49 is an intake fan.

50.51 in FIG. 2 is a switching valve. When the valve 50 is closed and the valve 51 is opened, the gas sent from the suction turbo blower 5 to the heat collecting water tank is transferred to the gas supply pipe 9.
The gas is supplied to the cold storage heat section 7 through the cooling heat storage section 7 but not to the dehumidifier a52, and when the valve 50 is opened and the valve 51 is closed, the gas is not supplied to the cold storage heat section 7 but is supplied to the dehumidifier 52. It is.

Reference numeral 53 in FIG. 2 is a control pump for temperature control, which directly sends the gas dehumidified by the dehumidifier from the suction turbo type blower Ia5 to the ventilation path 8b of the building 6.

Reference numeral 27 in FIGS. 4 to 6 is a medium supply pipe, which is buried in the concrete floor 13 in a meandering manner. A heating or cooling medium such as hot water, steam, or cold water is supplied into the pipe 27 from the heat pump 26 shown in FIG. It's Nishide. The cold storage heat section 7 has a medium and a gas supply pipe 9 supplied to the medium supply pipe 27.
This allows for efficient heating or cooling by both the gas supplied to the

A portion of the medium supply pipe 27 shown in FIGS. 4 and 6 is covered with a copper wire net 28 having excellent thermal conductivity to improve heating or cooling efficiency. 29 is a heat transfer layer with good heat transfer coefficient.

In FIG. 7, 30 is an automatic controller for indoor gas and external fresh gas, and 31 is, for example, J? Air pipe and its device for sending cold air or warm air into the room from the cooling/heating section 7, 32
[] Gas flows out into the attic 33 from the floor ventilation passage 8a, the wall ventilation passages 8b and 8d, and the ceiling ventilation passage 8e.
, 34 are suction fans that suck gas from the ventilation paths 8a to 8e to the roof 'A33.

Since the ceiling is not always water-tight depending on the building, the gas outlet 32 shall be installed in a part or the bottom of the ceiling depending on the situation. For the fan 34, install a powerful turbo fan or other fan suitable for dyeing.

Reference numeral 47 in FIG. 7 is a circulation pipe (same as the circulation pipe in FIGS. 1 and 2) for guiding the gas sucked by the suction fan 34 to the outside.

36 in FIGS. 1, 2, and 7 is an air intake [l, 37 formed in the attic 33 to introduce outside air from the outside into the roof+A33.
38 is a decorative hood, 38 is an exhaust duct, 39 is a collection/exhaust pipe for collecting gas in the attic, 40 is a collection/exhaust box, 41 is an exhaust fan, and 42 is an exhaust port.

The intake port 36 is formed in the 'F section of the attic, and the exhaust tact 38
It is best to form a pipe in the J: part of the attic so that the L rising gas in summer can be easily discharged to the outside.

(Effects in January) The heating and cooling method of this 9 AIJI is as described above, and has the following various effects.

(1) J1! Since the groundwater taken out from underground by the sewage pipe L is supplied to the heat collecting water tank 2, there is no need to dig a large diameter well to drain the groundwater into oil, thereby reducing the construction cost.

(2) Gas is supplied from an external stirring blower 4 into the groundwater 3 in the heat collecting water tank 2 to agitate the groundwater 3, extracting cold air from the groundwater in summer and hot air from the groundwater in winter. Therefore, compared to the geothermal extraction method that extracts geothermal heat by inserting a pipe into the ground, it is much more efficient in extracting geothermal heat and can be put to practical use.

(3) The invention according to claim 3 not only heats and cools the room 12 and the floor 13 using the cold or hot air in the heat collecting water tank 2, but also stores geothermal heat in the cold storage heat section 7. Since hot air or cold air is taken out from the cold storage heat section 7, stable hot air or cold air can be taken out at all times.

(4) The invention according to claim 2 or 4 not only cools or heats the cold storage heat section 7 with the cold air or hot air in the heat collecting water tank 2, but also heats or heats it with a heating medium or a cooling medium. Since it is designed to be cooled, J′1! The synergistic effect with heat significantly improves the heating or cooling effect.

(5) Because warm air is supplied to the surrounding walls and ceiling of the building,
It is also possible to prevent condensation from forming on parts of the surrounding walls and ceilings of buildings during the cold season.

[Brief explanation of the drawing]

1 and 2 are overall explanatory diagrams showing different examples of the j#Ap% 1 The figure is a schematic diagram of the entire building (Figure IJ1), and Figure 8 is an explanatory diagram of the piping of the cold storage heat section in the present invention. 1 is the underground water pumping pipe 2 is the heat collection water tank 3 is the underground water 6 is the building 7 is the cold storage heat section 8a to 8e is the ventilation passage 12 is the indoor room 13 is the floor

Claims (4)

[Claims] (1) Groundwater pumped up from underground is supplied to a heat collection water tank, gas is supplied from the outside into the groundwater in the heat collection tank to agitate the groundwater, and heat is collected from above the agitated groundwater. The gas in the tank is forcibly sucked and supplied to the cold storage heat section formed in the ground under the floor of the building to cool or heat the inside of the cold storage heat section. A method for heating or cooling a building using geothermal heat storage, characterized in that the supply is supplied to all or part of the ventilation passages formed in the ceiling space, attic, etc. to heat or cool the room. (2) A method for heating and cooling a building using geothermal heat storage according to claim 1, wherein the cold storage heat section is also cooled or heated by an external heating medium or cooling medium. (3) Groundwater pumped up from underground is supplied to a heat collection tank, gas is supplied from the outside into the groundwater in the heat collection tank to stir the groundwater, and heat is collected from above the agitated groundwater. The gas in the tank is forcibly sucked and supplied to the cold storage heat unit formed in the ground under the floor of the building, and all or all of the ventilation passages formed under the floor, peripheral walls, ceiling space, attic, etc. of the building. heating or cooling of a building by utilizing geothermal heat storage, characterized in that the room is heated or cooled by hot or cold air from the cold storage heat section and gas directly supplied to the ventilation path; Cold method. (4) The method for heating and cooling a building by utilizing geothermal heat storage according to claim 3, wherein the cold storage heat section is also cooled or heated by an external cooling medium or heating medium.