JP2008209103A - Underfloor radiation heating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive underfloor radiation heating method in which a radiator is not fixed in an underfloor space but is only laid or placed therein. <P>SOLUTION: In this floor heating method for performing hot water circulation by a heat pump system 40 of a heat source unit in a radiator 92 for underfloor radiation heating, the radiator 92 is not fixed to the underfloor space 12 but is laid on an earthen floor face 14 and is thereafter connected to a hose 30 through a one touch operation for performing hot water circulation. A concrete foundation 19 of a heat insulation heat storage foundation 10 is constructed to be damp-proof, and a heat insulating material 15 is integrated with the concrete. Further, The entire inner side bottom face of the concrete foundation 19 is heat insulated and damp-proof. A damp-proof film 17 is laid on the inner side bottom face of the concrete foundation 19, and a foamed heat insulating board material 16 is laid on the upper surface of the damp-proof film 17. Further, the upper part of foamed heat insulating board material is the heat insulation heat storage foundation 10 having a structure constructed with an earthen floor covered by reinforced concrete. A protective sheet is laid on the earthen floor face 14 of the heat insulation heat storage foundation 10, and the radiator 92 is placed on the upper face thereof. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an underfloor radiant heating system in which water or antifreeze is heated and circulated to a radiator that can be arranged only by being laid or placed in an underfloor space of a building.

In recent years, many of the residents have hoped to provide safe, secure, healthy and comfortable living spaces, and the incidental facilities of buildings such as houses have been considerably enhanced.
In recent years, there are many customers who want to use floor heating for new construction or home renovation.
However, in the case of new construction, there are many cases in which many residents abandon floor heating from the financial aspect, and even if flooring of solid flooring is desired from the aspect of sick house syndrome, it is solid that can support floor heating It is difficult to obtain and price flooring. Currently, in the case of hot water type floor heating and electric floor heating, floor heating flooring integrated with laminated flooring, plywood flooring and hot water tube is generally used. ing.
This floor heating method is adopted by many housing manufacturers and is also publicly known and described in housing-related technical materials.
JP-A-11-304171.

However, in the known floor heating method, the circulating hot water temperature (hereinafter referred to as water temperature) is approximately 60 ° C., and the distance between the hot water tube and the hot water tube is wide, so that a large temperature difference occurs locally. Even if there was hope, there was a problem such as having to give up.
Further, in the known floor heating method, the entire floor lower surface of the floor heating floor material is insulated so as not to be affected by the outside air temperature. Most of these heat insulating materials are made of foamed polystyrene, polyethylene foam, phenol foam, etc., and are used for construction methods for houses and the like that retain the heat insulation effect.
For this reason, if a fire breaks out, toxic gas is likely to be generated from expanded polystyrene and the like, and it cannot be said that it is a safe and secure house, and it can be said that there are many problems with existing construction methods for houses.

Therefore, the present invention is a petroleum-based heat insulating material that is used for the entire floor lower surface by heating the entire under-floor space without introducing outside air to a low temperature of approximately 25 ° C. so that the entire floor surface has a uniform floor surface temperature. Expanded polystyrene and the like can be excluded.
A low-cost underfloor radiant heating system that heats and circulates water or antifreeze liquid to a radiator that is simply laid or placed, without fixing the radiator to the underfloor space that is airtight and does not allow outside air to flow. The purpose is to provide.

In order to achieve the above object, the present invention takes the following technical means.
1stly, in the building which has an underfloor space part where the structure of a building is airtight which does not introduce outside air, an underfloor radiant heating system which arranges a radiator in the underfloor space part, warms and circulates water or antifreeze liquid to the radiator, did.
Second, the radiator is made of synthetic resin and has an inflow header pipe portion and an outflow header pipe portion having substantially the same shape at both ends, and a large number of thin spaces between the inflow header pipe portion and the outflow header pipe portion. The underfloor radiant heating system is characterized in that the tube tube communicates with the thin tube tube as a heat radiating portion.
Third, the radiator of claim 1 is the underfloor radiant heating system of claim 1, which is simply laid or placed.
Fourth, the radiator according to claim 1 is an underfloor radiant heating system characterized in that the copper tube is used as a heat radiating portion as it is except for the connection processing of the inflow portion or the outflow portion at both ends of the copper tube. .
Fifth, the air quality that can maintain the durability of the building was secured by combining a heat source device that warms and circulates water or antifreeze liquid to the radiator and a dehumidifier or an air conditioning / dehumidifying air conditioner.
Sixth, a heat collector that uses solar thermal energy or a heat pump that uses atmospheric thermal energy is used as the heat source unit, so that the under-floor radiant heating system is far more energy-saving than the electric heater type.
Seventh, an adiabatic heat storage base is added to the underfloor radiant heating system. For example, in a foundation having external heat insulation, a radiant heating system under a heat storage floor in which the entire inside of the foundation becomes a concrete heat storage section.

The underfloor radiant heating method of the present invention has the greatest merit that floor heating can be provided at a low price because it can be installed simply by laying or placing it without placing the required number of radiators in the underfloor space. .
In addition, since the radiator can only be laid or placed, it can be easily installed, moved or removed in a few minutes, so there is a great merit in terms of maintenance.
Furthermore, since the heat radiator has a heat radiating portion composed of a large number of thin tube tubes made of synthetic resin, the heat radiating performance is excellent.
Furthermore, even when a radiator is disposed, the flexibility is high and it has an excellent feature such that it can be installed while avoiding obstacles.
Next, in terms of the environment, the present invention is also effective for problems such as the existing floor heating flooring material being integrated with a hot water tube or the like, which takes time and labor during separation.
And underfloor heating in a state where outside air does not enter the underfloor space portion of an airtight structure in which a concrete foundation of a building such as a house and the building are integrated, low temperature floor heating can be realized. Moreover, the flooring of the solid floor material considered to be good from a sick house disease countermeasure side is also attained.
This low-temperature underfloor radiant heating system is an energy-saving house and can realize a healthy and comfortable living and living space that does not cause sick house disease.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a conceptual diagram of a radiant heating system under a heat storage floor of a heating method for warming and circulating water to a radiator.
・ Figure a shows the layout plan of the radiator.
・ B is a cross-sectional view of the heat insulation heat storage foundation and radiator.
FIG. 2 is a flowchart of underfloor radiant heating that combines a solar thermal energy collection system and a heat pump system.

The first embodiment, FIG. 1, illustrates the concept of a heat storage underfloor radiant heating system 90 of a heating method that warms and circulates water to a radiator 92.
FIG. 3A is a plan view of the arrangement of the radiator 92, and illustrates a floor heating method in which the hose 30 is connected in parallel to the radiator 92 for underfloor radiant heating and hot water is circulated by the heat pump system 40 of the heat source unit.
The radiator 92 is a heat storage underfloor radiant heating system 90 in which the hose 30 is connected with one touch after being laid on the soil surface 14 without being fixed to the underfloor space 12 and the hot water is circulated.

Fig. b is a cross-sectional view of the heat insulating heat storage base 10 and the radiator 92. The concrete base 19 of the heat insulating heat storage base 10 is moisture-proofed and the heat insulating material 15 is integrated with the concrete, but the main part that supports the weight of the entire building is sufficient. It is a reinforced concrete foundation part 18 having a sufficient strength.
And the inside of the foundation is an integrated concrete foundation 19 in which the heat insulating material 15 surrounds without breaks.
Further, the entire inner bottom surface of the concrete foundation 19 has a heat and moisture proof construction, and a moisture-proof film 17 is laid on the inner bottom surface of the concrete foundation 19 and a moisture-resistant petroleum foam insulation board 16 is laid on the top surface. The upper part is a heat insulating heat storage base 10 for soil construction covered with concrete with reinforcing bars.

  The protective sheet 13 is laid on the soil surface 14 of the heat insulation and heat storage base 10 having the outer heat insulation and the heat storage, and the hose 30 or the copper tube that circulates the hot water is connected to the radiator 92 that is simply laid on the upper surface of the protection sheet 13. This is a heat storage underfloor radiant heating system 90 in which floor heating is performed by the heat pump system 40.

  The shape of the radiator 92 includes an inflow header pipe portion 93 and an outflow header pipe portion 94 for connecting a hose 30 for circulating hot water or a copper tube, and a thin pipe with a length of several meters between them. This is a mat-shaped synthetic resin radiator 92 composed of the heat radiating portion 96 of the tube tube 95.

  A heat pump system 40 including a heat pump 41, a hot water tank 42, and a heat collection / circulation pump 43 that can effectively use the heat energy of the atmosphere is installed as a heat source that warms and circulates water to the two radiators 92. The floor heating of the heat storage underfloor radiant heating system 90 is used to heat the entire underfloor space 12 to approximately 25 ° C. by a heat source device.

However, since this heat storage underfloor radiant heating system 90 alone cannot dehumidify when moisture accumulates in the underfloor space 12, the dehumidifier or the air conditioning / dehumidifying air conditioner 77 is operated to make the entire underfloor space 12 low in humidity. Is maintained.
The low-humidity air is circulated by the fan 78 to provide a heat storage underfloor radiant heating system 90 that can provide effective floor heating of the entire floor surface at a low price while maintaining the durability of the building.

2nd Embodiment and FIG. 2 have illustrated the flow of the underfloor radiant heating which combined the solar energy collection system 20 and the heat pump system 55. FIG.
Although 2nd Embodiment demonstrates the best floor heating method gentler to the global environment which combined the solar thermal energy heat collection system 20 with the thermal storage underfloor radiation heating system 90 which used the heat pump 41 of 1st Embodiment as a heat source, 1st A description of points that are substantially the same as the contents described in the embodiment will be omitted.

The floor heating of the heat storage underfloor radiant heating system 90 configured by combining the solar thermal energy collection system 20 and the heat pump system 55 is operated by the following control system.
The antifreeze is warmed by the solar heat collector 25 to exchange heat with the water in the approximately 300 L hot water tank 29 to produce hot water.

  This antifreeze is circulated by the pump 21, but the operation condition of the pump 21 is circulated under the condition that the antifreeze temperature at the outlet of the solar heat collector 25 is approximately 7 ° C. higher than the water temperature in the hot water tank 29. The pump 21 is controlled to stop when the temperature falls below 7 ° C.

In addition, the flow of the antifreeze circulates through the radiator 27 for underfloor radiant heating.
This antifreeze is a part of the warmest antifreeze from the solar heat collector 25 and is first sent to the heat radiating copper tube 35 by the pump 22 to remove heat, and then flows into the inlet of the radiator 27 made of synthetic resin.
The antifreeze liquid flows out from the outlet of the radiator 27 after the radiator 27 radiates heat.
The antifreeze liquid flowing out from the outlet of the radiator 27 is mixed with the antifreeze liquid circulating between the solar heat collector 25 and the hot water tank 29, and is sent to the solar heat collector 25 by the pump 21 through the hot water tank 29. Is again heated and circulated by solar thermal energy.

On the other hand, under-floor radiant heating using hot water circulates as hot water heated by a heat source after being radiated by the radiator 92 after the hot water is sent to the two radiators 92 by the pump 23.
There are two systems of heating sources for heating the circulating hot water and the warm water tank 29, the first system is from the solar thermal energy collection system 20, and the second system is using the heat pump system 55 as a heating source. Yes.

Next, the control system for the two heating sources will be described with reference to the flowchart of FIG.
The control of the heat storage underfloor radiant heating system 90 that combines the solar thermal energy collection system 20 and the heat pump system 55 is important as a control method that efficiently and effectively collects solar thermal energy and atmospheric thermal energy. It is proposed as a control system that can make full use of energy and underfloor radiant heating and hot water supply with minimal electricity bills using midnight power.

The operating conditions of the control of the heating source of the first system, the pump 21 that circulates the antifreeze liquid between the solar heat collector 25 and the hot water tank 29, and the pump 22 that circulates the antifreeze liquid to the radiator 27 are the solar heat collector 25. The pump 21 is circulated under the condition that the temperature of the antifreeze at the outlet is approximately 7 ° C. higher than the temperature in the hot water tank 29.
The pump 21 is controlled to stop when the temperature difference falls below 7 ° C.
The low flow rate pump 22 operates only in winter, but moves in conjunction with the operation and stoppage of the pump 21.

  The control of the heat source of the second system, the operation of the heat pump 41 that is the heat source machine and the heat collecting circulation pump 43 for the heat pump are only in the midnight power use time zone, and the control is operated at a temperature lower than the set temperature of the hot water tank 29 and above the temperature setting Then stop.

The pump 23 for circulating hot water to the two radiators 92 operates only in winter.
The operation time zone of the pump 23 is controlled by a timer and is operated for 1 hour before the midnight power usage time zone, and is operated for 1 hour after the midnight power usage time zone expires.
The purpose of operating the pump 23 one hour before the midnight power usage time period is that if the inflow water temperature to the heat pump 41 is high, the heat energy of the atmosphere cannot be collected efficiently and effectively, and the efficiency decreases. If the inflowing water temperature is high, the heat pump 41 may be damaged, and therefore the interlock is avoided.
Next, the purpose of operating for 1 hour after the midnight power usage time period expires is to collect solar thermal energy by using the amount of heat in the hot water tank 29 for floor heating as much as possible and keeping the water temperature in the hot water tank 29 low. It is to increase thermal efficiency.

  In this way, by controlling solar heat energy and atmospheric heat energy efficiently and effectively, it is possible to realize floor heating and hot water supply that can be satisfied with little electricity charges.

As described above, the above control method is a method in which the heat pump system 55 is operated only in the late-night power usage time period with control focusing on the electricity bill to be paid. What is necessary is just to select another control method freely, without limiting to a control method.
Therefore, it is desirable to have a control system that allows the user to select and set the user's life pattern among several control methods.
In addition, the use place of the hot water supply of 1st Embodiment and 2nd Embodiment is only for a bathroom.

Industrial applicability

  The power generation efficiency using solar light is about 17%, and the heat collection efficiency using solar heat is about 70%. The present invention can present that the creation of an industry that links this point to the development of new equipment and systems is the shortcut to global warming prevention and global environmental maintenance.

FIG. 1 is a conceptual diagram of a radiant heating system under a heat storage floor of a heating method for warming and circulating water to a radiator.・ Figure a shows the layout plan of the radiator.・ B is a cross-sectional view of the heat insulation heat storage foundation and radiator. FIG. 2 is a flowchart of underfloor radiant heating that combines a solar thermal energy collection system and a heat pump system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, Insulation heat storage base 12, Underfloor space part 13, Protective sheet 14, Soil surface 15, Insulation material 16, Oil-based foam insulation board 17, Moisture-proof film 18, Reinforced concrete foundation part 19, Concrete foundation 20, Solar thermal energy collection system 21, 22, 23, pump 25, solar collector 27, radiator 29, hot water tank 30, hose 40, heat pump system 41, heat pump 42, hot water tank 43, heat collection circulation pump 55, heat pump system 77, dehumidifier and Air conditioning and dehumidification air conditioner 78, fan 90, heat storage underfloor radiant heating system 92, radiator 93, inflow header pipe section 94, outflow header pipe section 95, thin pipe tube 96, heat radiation section

Claims (7)

  In a building having an underfloor space portion where the building structure is airtight and does not introduce outside air, an underfloor radiant heating system in which a radiator is disposed in the underfloor space portion and water or antifreeze liquid is heated and circulated through the radiator.   The radiator is made of synthetic resin and has an inflow header tube portion and an outflow header tube portion having substantially the same shape at both ends, and a large number of thin tube tubes communicate between the inflow header tube portion and the outflow header tube portion. The underfloor radiant heating system according to claim 1, wherein the thin tube tube is a heat radiating portion.   The underfloor radiant heating system according to claim 1, wherein the radiator of claim 1 is simply laid or placed.   2. The underfloor radiant heating system according to claim 1, wherein the radiator of claim 1 uses the copper tube as a heat radiating portion as it is except for connection processing of the inflow portion or the outflow portion at both ends of the copper tube.   The underfloor radiant heating system according to any one of claims 1 to 4, wherein a heat source device that warms and circulates water or antifreeze liquid to the radiator and a dehumidifier or an air conditioning / dehumidifying air conditioner are combined.   6. The underfloor radiant heating system according to claim 1, wherein a heat collector using solar thermal energy or a heat pump using atmospheric thermal energy is used as the heat source unit.   The heat storage underfloor radiant heating system which added the heat insulation heat storage foundation to the underfloor radiant heating system of Claim 1.

Images