JP2008116191A - Subterranean heat utilizing air conditioning system and its purification heat exchange apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation air conditioning system friendly to the environment and the human body, utilizing subterranean heat, and to provide a system and device carrying out ventilation, air conditioning, and purification by outside air and heat storage liquid utilizing heat of a subterranean constant heat layer. <P>SOLUTION: To efficiently carry out reception and dissipation of heat of gas, the outside air is blown into the heat storage liquid in a rotated/agitated heat storage tank to carry out heat exchange with the outside air and purification of dust or the like. For reheating and re-cooling, air is passed through a heat exchange duct provided with a heat exchange coil unit with a filler, and it is sent to each room of a building to carry out air conditioning along with ventilation. In regard to subterranean heat utilized therefor, it is investigated that a temperature zone close to constant heat can be obtained in a layer at a comparatively shallow underground depth of about 2-3 m right below the building, and by burying the heat storage tank and a heat storage liquid piping for heat exchange in the layer, subterranean heat is utilized in a short period time with inexpensive construction costs by easy construction using common machinery. Air is humidified/dehumidified, cleaned, heated/cooled, and sent by a purification heat exchange apparatus system utilizing natural subterranean energy. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a system and an apparatus for performing ventilation air adjustment and air purification by outside air using geothermal heat.

Conventional geothermal use involves transmitting geothermal heat itself to the building floor, or taking in any of the air under the floor and the back of the ceiling by cooling and heating using geothermal heat, and deep underground Some refrigerants or air are sent through a pipe, receive heat propagation, and are used to assist heat exchange efficiency of air conditioning or hot water supply by a heat pump or the like.

However, when considering indoor ventilation and construction workability, the conventional underground thermostatic layer uses a special machine such as boring to bury pipes to a depth of about 10m to 100m in order to exchange heat. Otherwise, construction could not be done, so the construction period was long and the construction cost was considerably high and unsuitable.

In the conventional method using a tank, the temperature of the liquid inside cannot be kept constant, and the liquid cannot be purified, so the liquid must be replaced frequently, which is not economical and uses geothermal heat. There was not.

JP-A-9-292153 JP 2001-41479 A JP 2002-13829 A JP 2006-266575 A

Since the conventional underground thermostatic layer is used in the deep layer of about 10m to 100m underground, it is difficult to construct with general construction machinery by special construction methods such as boring and construction with construction machinery, and heat conduction of air Since the rate is low, heat transfer that can be used as air conditioning is not obtained even if the outside air is blown only by heat exchange such as a heat pump or heat exchange by geothermal heat.
When there is a need to prevent global warming or suppress heat islands, water or an aqueous solution and air are considered when considering systems and devices that ventilate and air-condition each building using the geothermal heat of natural energy that is inexhaustible. The problem is heat transfer and purification of water, and filtration of water or aqueous solution in the tank and heat reception by geothermal heat.
Therefore, an object of the present invention is to provide a system and an apparatus to cope with such a problem.

The present invention includes a heat storage layer (A) for storing a heat storage liquid, jetting means for jetting gas bubbles to be purified and heat exchanged in the liquid heat storage liquid, and purification and heat exchange with the heat storage liquid, A purifying / heat exchanging device having recovery means for recovering gas discharged from the upper surface of the heat storage liquid through a heat exchange duct (C) in which the heat storage liquid is circulated, wherein the heat storage liquid is stored in the heat storage tank (A). In order to use the inexhaustible natural energy underground heat, the heat storage liquid is stored in the heat storage tank (A) buried in the ground, and the inside of the heat storage tank Pump in heat storage fluid (P1)
In order to further enhance the heat exchange effect of the outside air taken into the ventilation pipe (1) from the outside air inlet (H) to the heat storage liquid, the foam is blown out from the bubble pipe (6) shown in FIG. Rotor blade (W) installed on the aeration tube at the bottom of the aquarium using the bubbles to maximize the contact area with water
Rotate the heat storage liquid in the heat storage tank to increase the heat receiving time of the bubble-like gas in water, exchange more heat, and remove dust contained in the air This is a purification heat exchanger system using medium heat energy.

By rotating the heat storage liquid in the heat storage tank (A) with the rotor blade (W) shown in FIG. (4.5), heat exchange between the surface of the heat storage tank that has received heat exchange from geothermal heat and the heat storage liquid is also possible. The heat storage fluid that has passed through the whole and exchanged heat with air bubbles passes through the circulation path (3) equipped with the filter (F) and the heat storage fluid circulation pump (P2) shown in Fig. (3) for receiving heat and purification. In order to exchange heat a lot, the circulation path is meandering or spirally piping in the underground constant temperature layer, and the natural ground heat energy that circulates the heat storage liquid that has received heat exchange by underground heat in the heat storage tank It is a use purification heat exchange system.

The heat exchange duct (C) shown in FIG. 6 (6) embeds the pipe (5) in a constant temperature layer by meandering the pipe (5) and uses the geothermal heat to exchange heat with the heat storage liquid. The heat storage liquid is sent by the heat storage liquid circulation pump (P4) and circulated through the installed coil unit (G) with the necessary number of fins, and the duct incorporating the air purification filter is installed by the ventilation pipe (2) and the blower pump (P3). Utilizing natural geothermal energy to ventilate and air-condition air for 24 hours by passing outside air that has undergone heat exchange in the aquarium (A) through the heat exchange duct (C), cooling and heating, and blowing into each room of the building through the ventilation duct (4) It is a purification heat exchanger system.

The ventilation pipe (6), heat storage liquid pipe (5) and underground pipe in the heat storage tank use a metal or non-metal pipe with high thermal conductivity, and the ground exposed pipe uses a pipe with low thermal conductivity. Condensed water generated in the ventilation pipe is collected in the drainage pit (B) provided in the ground with a gradient in the ventilation pipe and drained to the outside by a pump (P4) when it reaches a certain amount. .

In order to minimize the effect of heat transfer from the outer periphery to the underground thermostatic layer directly under the building, the foundation of the outer periphery of the building is a deep foundation of about 2 to 3 meters, and a heat insulating material (E) is attached inside or outside to transmit heat. Suppress.

In the present invention, in order to use inexhaustible natural geothermal heat, the heat storage liquid is stored in the heat storage tank (A) buried in the ground, and the outside air inlet (H In order to further improve the heat exchange efficiency with respect to the heat storage liquid, the outside air taken in from the outside air supply pipe (1) is made into a bubble form from the bubble tube (6) or jet nozzle outlet shown in FIG. (7.9.10). The maximum contact area between the spray and the heat storage liquid is maximized. At the same time, the heat storage liquid in the heat storage tank is rotated and agitated by blowing out the bubbles and the heat storage liquid. This is a purification heat exchange system using natural underground heat energy that can exchange dust more in a gas while increasing the time and exchanging more heat.

The heat storage liquid in the heat storage tank (A) is heat-exchanged between the surface of the heat storage tank that has received heat propagation from geothermal heat and the heat storage liquid by rotating and stirring it by ejecting it in the ejection direction shown in Fig. (7.9). However, the heat storage fluid that has passed through the entire heat storage fluid in the heat storage tank and exchanged heat with the air bubbles is shown in Fig. 1.2.
In order to receive more heat exchange by the filter shown in 5) (R and the heat storage liquid circulation pump (P2), it passes through a circulation path (5) piped in a meandering or spiral manner in a layer having a temperature close to the constant temperature of underground. It is a purified heat exchanger system using natural underground heat energy that receives heat exchange by underground heat and circulates it in a heat storage tank.

The heat exchange duct (C) shown in FIG. 6 is a duct in which a necessary number of finned heat exchange coil units (G) that circulate the heat storage liquid in the heat storage tank that has received heat exchange by geothermal heat are installed and incorporated. The outside air that has undergone heat exchange in the heat storage tank (A) by the ventilation pipe (2) is passed through the heat exchange duct (C), reheated and dehumidified,
This is a purification heat exchanger system using natural underground heat energy that ventilates and air-conditions each building by ventilating pipes (4).

The underground heat-utilized ventilation air conditioning equipment of the present invention does not rely on a heat pump or the like, but performs ventilation and air conditioning for 24 hours with outside air. In the conventional method, in order to exchange heat of a necessary amount of air to a constant temperature,
Because it has to be piped deep underground, it becomes a construction with a special machine such as boring, the construction period is long, the construction cost is very high, and the thermal conductivity of air is very low, so it is used as an auxiliary for heat exchangers such as heat pumps Or it was used with assistance, but the outside air was bubbled through the vortex heat storage liquid in the heat storage tank and passed through the heat exchange duct to compensate for the low thermal conductivity. It is a natural geothermal energy-purified heat exchange system that can perform 24-hour ventilation air-conditioning using constant-temperature geothermal heat throughout the year, which also includes air purification with heat storage fluid and filters, and humidification and dehumidification.

The geothermal heat purification heat exchange device of the present invention first ventilates and air-conditions with the heat storage liquid and outside air in the heat storage tank, and the refrigerant liquid passed through the finned heat exchange coil unit in the heat exchange duct is also the heat storage tank. Circulates the heat storage fluid inside, combined with air purification and air conditioning throughout the year, and filtration of the heat storage fluid.
It is a purified heat exchanger system using natural underground heat energy that can be ventilated and air-conditioned using underground heat close to the constant temperature layer.

Thermal storage tank with bubble tube (6) and rotor blades (W) installed at the bottom of the constant temperature layer below the ground surface in order to use geothermal heat of about 2 to 3m deep below the ground surface directly under the building (A) is buried, the heat storage liquid in the heat storage tank is cooled by geothermal heat, and the air taken from the outside air inlet (H) is bubbled into the heat storage liquid from the bubble pipe (6) to improve the heat receiving efficiency, Each room blower pipe (4) passes through the heat exchange duct (C) provided with the finned coil unit shown in FIG. 6 (6), the air purifying filter and the dehumidifier from the blower pipe (2) through the heat exchange duct (C). This is a natural geothermal heat energy purification heat exchanger system that exhausts air from the exhaust port (D) to each room and ventilates and air-conditions for 24 hours.

The form of the present invention does not require special machinery, equipment and facilities for construction, and can be constructed by embedding a heat storage tank (A) and piping with a general construction machine in the basement of the building as shown in Fig. (1). This is a purification heat exchanger system using geothermal energy.

The present invention uses geothermal heat from the constant temperature layer to contribute to prevention of global warming and heat island suppression.
I can contribute.
Equipment can also be easily inspected and repaired for maintenance because it is installed on the floor floor or outdoors, and materials buried in the ground are made of metal or non-metal with excellent heat transfer effect and corrosion resistance. In order to take heat exchange at a stable temperature of geothermal heat, a heat insulating material is installed in the outer periphery foundation of the building or in the outer periphery to suppress the influence of heat transfer from the surrounding area, and it is a purification heat exchanger system using natural geothermal energy. is there.

[Claim 8] In order to rotate and stir the heat storage liquid in the heat storage tank (A) provided with a hollow portion in the center, an injection nozzle is provided at the outlet of the heat storage tank of the circulating heat storage liquid pipe. The outside air is sucked using the negative pressure generated on the ejection side of the nozzle, the outside air supply pipe (1) is connected to the ejection side of the ejection nozzle, and merged to be ejected into the heat storage tank. By combining bubbles and circulating heat storage liquid, it is possible to obtain a stronger stirring force and to strongly rotate and stir the heat storage liquid. Therefore, the geothermal heat is efficiently transferred to the entire heat storage liquid in the heat storage tank and received by the bubbles. Purification heat exchange system using natural geothermal energy for heat transfer and purification

There is a strong demand for prevention of global warming, suppression of heat islands, and reduction of carbon dioxide emissions, but it is difficult to respond and is not progressing at all in the present situation. In addition, it is to suppress emissions from combustion equipment.
As a countermeasure, the present invention, as a countermeasure, requires that 24-hour ventilation is currently required in newly-built houses and that air purification is required. It is a clean heat exchanger system using natural underground heat energy that can be widely used as an earth friendly 24-hour ventilation air conditioning system.

In order to efficiently exchange heat, the present invention rotates, agitates, and circulates the heat storage liquid in the heat storage tank, and in order to maximize the heat transfer effect, the outside air is ejected as small bubbles for purification, Heat exchange,
Again, the natural heat energy that is kind to the body and is gentle to the body is ventilated and air-conditioned by natural geothermal heat by ventilating the heat exchange duct that circulates the heat storage liquid in the heat storage tank as a refrigerant. It is a use purification heat exchange system.

1 is an overall system explanatory diagram of the present invention. It is a thermal storage tank enlarged view. It is a geothermal exchange heat storage liquid circulation piping diagram in the constant temperature layer of the heat storage liquid in a heat storage tank (A). It is a thermal storage tank shape, the bubble tube in a thermal storage tank, and a rotary blade shape figure. It is a thermal storage tank shape, the bubble tube in a thermal storage tank, and a rotary blade shape figure. It is a heat exchange duct, a coil unit with a fin, and refrigerant liquid circulation piping explanatory drawing. 1 is an overall system explanatory diagram of the present invention. It is a bubble tube for rotating the thermal storage liquid in a thermal storage tank, and a bubble ejection direction view. It is a hollow heat storage tank figure. It is a heat exchange duct, a coil unit with a fin, and refrigerant liquid circulation piping explanatory drawing. It is a bubble tube for rotating the thermal storage liquid in a thermal storage tank, and a bubble ejection direction view.

Explanation of symbols

A Heat storage tank B Condensation water collecting pit C Heat exchange duct D Exhaust port E Heat insulating material F Filter G Finned coil unit H Air supply port R Living room W Heat storage tank rotor blade P1 Air supply pump P2 Thermal storage liquid circulation pump P3 Air blower Pump P4 Refrigerant liquid circulation pump P5 Drainage pump 1 Outside air supply pipe 2 Blower pipe 3 Ventilation pipe 4 Ventilation pipe in each chamber 5 Refrigerant pipe 6 Bubble pipe 7 Drainage pipe

Claims (11)

A heat storage tank for storing the heat storage liquid, jetting means for jetting gas bubbles to be purified / heat exchanged in the liquid heat storage liquid, purified / heat exchanged with the heat storage liquid, and discharged from the upper surface of the heat storage liquid A purifying / heat exchanging device having a collecting means for collecting gas through a heat exchange duct in which the heat storage liquid is circulated, and comprising a stirring swirling means for stirring and swirling the heat storage liquid in the heat storage tank Natural geothermal energy use purification heat exchange system. [Claim 1] An air conditioning system having the purification / heat exchange device according to claim 1 and performing air conditioning of a house using geothermal heat, wherein the temperature change of the heat storage liquid stored in the heat storage tank is converted using geothermal heat. The heat storage tank uses a geothermal heat of a constant-temperature layer of about 2 to 3 m or less below the ground surface directly under the building. The tank is embedded in a constant-temperature layer below the ground surface, and in the heat storage liquid in the heat storage tank heated and cooled by geothermal heat, the outside air taken in from the external intake port is ejected as bubbles in order to efficiently receive heat propagation from the bubble tube, Exhaust air that has undergone heat exchange is passed through a heat exchange duct equipped with a finned coil unit, a filter, and a dehumidifier from the vent pipe to the building rooms for ventilation and air conditioning. Equipment system. [Claim 1] In the heat storage tank, the bubble tube at the bottom of the heat storage tank uses a metal or non-metal pipe having high thermal conductivity, and the rotor blades installed on the bubble tube are rotated by the bubbles, By stirring and rotating the heat storage liquid, the residence time of the bubbles in the heat storage liquid is lengthened, and the geothermal heat received by the outer wall of the heat storage tank is transferred equally to the entire heat storage liquid in the heat storage tank, Purified heat exchange system using natural underground heat energy to enhance heat exchange. [Claim 1] In the heat storage liquid according to claim 1, the underground thermal layer uses a metal or non-metal pipe with high thermal conductivity as a heat exchange circulation pipe in order to use geothermal heat for cooling heat. A natural ground heat energy purification heat exchanger system that is buried in a spiral or spiral shape, installed in a filter to purify the heat storage liquid in the heat storage tank and circulated by a pump, and uses chlorine for sterilization. In [Claim 1], the air that has undergone heat exchange in the heat storage tank is circulated through a heat storage liquid that is heated and cooled using geothermal heat through a metal / non-metal pipe having a high thermal conductivity according to [Claim 2]. Natural heat energy purification heat exchanger system that ventilates and regulates air for 24 hours by ventilating and heat-cooling the heat exchange duct with a finned coil unit by a pump or the like. In the part directly under the building, the temperature close to constant heat is obtained in the shallower underground part compared to the surrounding part, so that the geothermal heat of the constant-temperature layer geothermal heat of about 2 to 3 m deep below the ground surface directly under the building is efficiently obtained. In order to use it, the influence of the high temperature in summer and the low temperature in winter on the outer surface of the building's outer surface that the underground constant temperature layer receives
Naturally, the outer periphery of the building is a deep foundation of about 2 to 3 meters, and heat insulation is applied to the inside or outside of the foundation, and the outside air to be taken in can be switched according to the season temperature in order to increase the efficiency of heat exchange. Purification heat exchange system using geothermal energy In [Claim 1], the capacity or quantity of the heat storage tank buried in the ground and the circulation pipe length, and the number of sets of finned coil units installed in the heat exchange duct of [Claim 5] are: A tank that is calculated and determined based on the room capacity and temperature for air conditioning, and is buried outdoors, is installed to temporarily store the heat storage liquid in the heat storage tank at the time of inspection, repair or cleaning in the heat storage tank. As a water storage tank for storing and using groundwater or rainwater in normal times, water that has received a lot of geothermal propagation at the bottom is replenished to the heat storage tank by a circulation pump using a switching valve, and at the same time used in various natural environments Heat energy purification heat exchanger system. In order to efficiently use the geothermal heat at a shallow temperature below the ground surface, the heat storage tank with a hollow in the center is buried directly under the building, and the heat storage liquid in the heat storage tank is geothermal In order to receive more heat propagation and keep the temperature constant and uniform, rotate and stir the heat storage liquid in the heat storage tank,
Among them, the outside air taken in is blown out in the form of bubbles, purifies purification, receives more heat propagation, and in order to further increase heat exchange to the outside air that has undergone purification and heat exchange, Ventilate a duct with a finned heat exchange coil unit that circulates the heat storage fluid that has undergone heat transfer and heat exchange in the heat storage tank,
Purified heat exchanger system using natural underground heat energy that ventilates and adjusts air for 24 hours by blowing outside air that has undergone heat exchange to each room through a ventilation pipe The heat storage liquid in the heat storage tank purifies the outside air contaminated with dust, nitrogen oxide, etc. as a liquid filter, and the contaminated heat storage liquid is purified by a filter installed in the circulation pipeline, and the heat storage tank jet It is ejected by the ejection nozzle provided to the outside, the outside air is sucked using the negative pressure generated on the ejection side, the bubbles and the circulating liquid are ejected together into the heat storage tank, the heat storage liquid is rotated and stirred more strongly,
Therefore, it is possible to efficiently transfer the heat received from the ground to the entire heat storage liquid in the heat storage tank, and to use the natural ground heat energy purification heat exchanger system to improve the heat transfer and purification received by the bubbles. In [Claim 1.8], in order to rotate and stir the heat storage liquid in the heat storage tank in the previous period, a rotating blade that rotates with bubbles at the bottom of the heat storage tank in the previous period, and a bubble tube that emits bubbles to rotate it are installed. Alternatively, by installing a spray nozzle for jetting the heat storage liquid and gas in the previous heat storage tank in the direction of rotation of the heat storage liquid in the heat storage tank, and rotating and stirring the heat storage liquid in the heat storage tank, The heat storage liquid in the heat storage liquid is lengthened, the purification is performed, heat is efficiently propagated to the gas, and the heat storage liquid in the heat storage tank is rotated and agitated. Purified heat exchange system using natural underground heat energy that efficiently transfers heat received by the tank wall to the entire heat storage liquid in the heat storage tank [Claim 8] In the heat storage tank provided with a hollow portion in the central part, an ejection nozzle is provided at the outlet in the heat storage tank of the circulating liquid pipe for rotating and stirring the heat storage liquid in the heat storage tank. In order to naturally suck the outside air by using the suction force generated by the ejection, the outside air intake pipe is connected to the ejection nozzle, merged and ejected into the heat storage tank, and the bubbles are combined with the circulating water / aqueous solution. A natural underground that obtains stronger jetting power and strongly rotates and stirs the heat storage liquid, thus efficiently transferring geothermal heat to the whole heat storage liquid in the heat storage tank and pursuing heat transfer purification received by bubbles Heat energy purification heat exchanger system