JP2010107074A - Energy supply system, self-supporting housing and self-supporting region - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an energy supply system that utilizes solar energy to maximum. <P>SOLUTION: This energy supply system 1 utilizes solar energy and includes a solar power generation device 2 generating power by solar light; a solar heat cogeneration device 3 producing heat by solar energy; a storage battery 4 for storing power generated by the solar power generating device; a heat pump refrigeration device 51 generating cold by power; an absorption-type refrigeration device 52 producing cold from exhaust heat of the solar heat cogeneration device 3; and a cold storage tank 53 for storing cold produced by the heat pump refrigeration device 51 and the absorption-type refrigerating device 52. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an energy supply system using solar energy, a self-supporting house that receives energy supply therefrom, and a self-supporting area where a plurality of such houses are gathered.

  2. Description of the Related Art Conventionally, energy supply systems that supply energy such as electricity, gas, and water to a local community where a plurality of houses are gathered are known in addition to a large-scale lifeline (see Patent Documents 1 and 2).

  For example, in Patent Document 1, when power is generated by a cogeneration (hereinafter referred to as “cogeneration”) facility, electric power and heat generated by the power generation are supplied to each house, so that energy is effectively used in the area. An invention for use is disclosed.

  In Patent Document 2, in villages where lifelines such as remote islands are not established, power generation for operating streetlights and water pumps is performed jointly, and power used in each house is covered by private power generation. As a general rule, a configuration is disclosed in which each is connected with an electric wire so that power can be distributed in the event of in-house power generation shortage or failure.

  Furthermore, in Patent Document 3, when there is a wave in the time and amount that can be generated as in a solar power generation device, ice is made with a cold heat generation device in order to store surplus power with low energy loss and effectively use it. Thus, it is disclosed to store cold as cold energy.

  Further, in Patent Document 4, hydrogen gas is generated by surplus heat generated by a solar heat storage utilization device, and the hydrogen gas is stored in a hydrogen storage container for long-term heat storage, so that from spring to summer and from autumn to winter. In particular, it is disclosed that long-term energy storage across seasons is possible.

Furthermore, Patent Document 5 discloses a system house that purifies and circulates rainwater and domestic wastewater.
Japanese Patent No. 3776010 JP 2006-115661 A JP 2006-179681 A Japanese Patent Publication No. 63-59063 Japanese Patent Laid-Open No. 10-317687

  However, in the conventional energy supply systems disclosed in Patent Documents 1 and 2, it is disclosed that electric power and heat are accumulated to level the energy supply and demand between one day and between houses. There is no disclosure about leveling energy supply and demand during the season by accumulating energy over a long period of time.

  Further, Patent Document 3 discloses that the surplus power of solar power generation is stored as cold energy, but leveling by this storage is only for a short period of one day.

  Furthermore, Patent Document 4 discloses that hydrogen gas can be generated for long-term storage of energy, but in order to generate hydrogen gas, a metal hydride is required. In order to store hydrogen gas safely, there is a problem that an administrator with sufficient knowledge and cost are required.

  Moreover, patent document 5 is only the structure which reuses rainwater or domestic wastewater, and there is no connection with another structure.

  On the other hand, in tropical regions, subtropical regions, or desert regions in these regions, the energy load reaches a peak in summer and the load varies greatly with winter. And long-term energy storage is indispensable in order to live a self-sustaining life using solar energy in places where such a lifeline is not established. Since it becomes large and expensive, it is not realistic.

  On the other hand, in such a high temperature area, even if heat is generated by solar energy, the amount of use is small, and heat must be exhausted wastefully.

  Therefore, even if the present invention is separated from an energy supply system capable of maximizing the use of solar energy and a lifeline such as electricity, energy is stably supplied from this energy supply system. The purpose is to provide self-supporting housing and self-supporting areas.

  In order to achieve the above object, an energy supply system of the present invention is an energy supply system using solar energy, a solar power generation device that generates power by sunlight, and heat that generates at least heat by the solar energy. Generation device, power storage device for accumulating electric power generated by the solar power generation device, electric cold heat generation device for generating cold using electric power, and absorption cold heat generation device for generating cold from the heat of the heat generation device And a cold storage tank for storing the cold generated by the electric cold heat generator and the absorption cold heat generator.

  Here, the heat generation device can be a solar heat cogeneration device that simultaneously generates power. Further, the electric cold heat generating device may be a heat pump refrigeration device.

  Furthermore, the self-supporting house of the present invention is a self-supporting house provided with the above energy supply system, the electric equipment operated by the power supplied from the solar power generation device or the power storage device, and the heat storage in the cold storage tank And a cooling device that operates by the cooled heat.

  The self-supporting area of the present invention is a self-supporting area composed of the energy supply system and a plurality of houses, and the solar power generation device, the heat generation device, and the power storage device are arranged in each house. The cold storage tank is shared by the entire area or a plurality of houses.

  Here, it can be set as the structure provided with the water circulation system which has the waste water treatment apparatus which processes the waste_water | drain of the said house, and the water supply apparatus which supplies water to the said house.

  The energy supply system of this invention comprised in this way produces electric power and heat from the solar power generation device and heat generation device which operate with solar energy. Moreover, it has a cold storage tank capable of converting the generated heat and electricity into cold heat and storing it.

  For this reason, even if it is an area where air temperature is high, the generated heat is not wasted and solar energy can be utilized to the maximum extent. In addition, such a cold storage tank can be increased in size with a relatively low budget, and long-term energy storage across seasons becomes possible.

  Furthermore, by using the cold energy stored in the cold storage tank, the power consumption peak can be lowered and leveled, and the scale of the solar power generation device and the power storage device can be suppressed.

  Moreover, by using a solar heat cogeneration device that simultaneously generates heat and generates power as the heat generation device, solar energy can be used more efficiently than a solar power generation device that performs only power generation.

  Furthermore, by using a heat pump refrigeration apparatus as an electric cold heat generating apparatus, natural energy other than solar energy such as outside air temperature can be effectively utilized.

  Moreover, the self-supporting house of this invention receives supply of energy from the said energy supply system.

  For this reason, even in an area where a lifeline is not established, it is possible to live a comfortable life in which electrical equipment, cooling devices, and the like can be used.

  Furthermore, the self-supporting area of the present invention is an area where a plurality of houses that receive energy supply from the energy supply system are gathered. And a solar power generation device, a heat generation apparatus, and an electrical storage apparatus are arrange | positioned at each house, and the cool storage tank becomes the structure shared by the whole area or a some house.

  For this reason, since the excess heat in a region can be collectively stored as cold heat, surplus heat can be easily collected and storage efficiency can be increased. Moreover, the cost per capacity | capacitance can be lowered | hung by enlarging a cool storage tank.

  In addition, by providing a water circulation system, it is possible to live a comfortable life not only in lifelines such as electricity and gas but also in areas without water and sewage.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of an energy supply system 1 of the present invention and a house 6 as a self-supporting house that receives energy supply from the energy supply system 1.

  The energy supply system 1 generates power by using a solar power generation device 2 that generates power using sunlight, a solar thermal cogeneration device 3 as a heat generation device that generates heat using solar energy, and the solar power generation device 2 and the solar thermal cogeneration device 3. Battery 4 as a power storage device for storing the generated power, a heat pump refrigeration device 51 as an electric cold heat generating device for generating cold heat with surplus power, and an absorption type as an absorption cold heat generating device for generating cold heat from surplus heat It is mainly composed of a refrigeration apparatus 52 and a cold storage tank 53 for storing cold energy.

  This solar power generation device 2 is a device that generates electricity by directly converting sunlight as solar energy into electric power by using a solar cell. This solar power generation device 2 is a device that can supply electric power only in a time zone in which sunlight can be received.

  On the other hand, the solar heat cogeneration device 3 includes a power generation device that uses a heat engine such as a solar heat Stirling engine, and a device that extracts the heat using exhaust heat generated during the power generation.

  That is, this solar thermal cogeneration apparatus 3 is a heat collecting apparatus (not shown) for efficiently collecting and concentrating solar energy, a turbine power generator (not shown), and heat that conveys exhaust heat generated during power generation. It is mainly composed of a medium pipe 54.

  And this solar thermal cogeneration apparatus 3 can generate electric power with the conversion efficiency of 2 times or more higher than the solar power generation apparatus 2.

  Moreover, the storage battery 4 is an apparatus which accumulate | stores the electric power generated with the solar power generation device 2 or the solar thermal cogeneration apparatus 3, and a lithium battery, a lead battery, etc. can be used for it.

  Here, although not shown, a part of the power generated by the solar power generation device 2 or the solar thermal cogeneration device 3 may be directly supplied without being stored in the storage battery 4. By storing electricity in the storage battery 4, stable supply of electric power and night use are possible, but energy loss occurs during storage, and thus generated electric power may be supplied as it is when electric power is required.

  On the other hand, in tropical regions, subtropical regions, and desert areas in these regions, electricity consumption peaks during the summer due to the use of electric equipment such as cooling, but in winter the amount of solar energy is large enough to reduce electricity consumption. May be obtained, and the power generated by the solar power generation device 2 or the solar thermal cogeneration device 3 may exceed the consumption amount, and surplus power may be generated.

  Although not shown, hot water can be made and supplied from the heat generated by the solar heat cogeneration device 3, but when heat is generated in large quantities, the consumption of hot water is low and the temperature is high. There can be a lot of excess heat in the area.

  Therefore, cold energy is generated from these surplus power and surplus heat and stored in the cold storage tank 53.

  First, surplus power will be described. Surplus power when power is generated to the extent that the capacity of the storage battery 4 is exceeded is transmitted to the heat pump refrigeration apparatus 51. In the heat pump refrigeration apparatus 51, the compressor is operated by electric power to generate cold heat, and the cold heat is conveyed to the cold storage tank 53 through the refrigerant pipe 55A.

  The absorption refrigeration apparatus 52 is an apparatus that generates low-temperature cold heat from hot water of about 80 to 90 ° C. discharged from the solar heat cogeneration apparatus 3. In the absorption refrigeration apparatus 52, the refrigerant is evaporated in a low-temperature and low-pressure evaporator to produce cold water, and the evaporated refrigerant is absorbed by the absorption liquid in the absorber. Then, the absorption liquid that has absorbed the refrigerant is heated in the regenerator to evaporate the refrigerant to be separated and returned to the absorber again. Further, the evaporated and separated refrigerant is cooled and liquefied by a condenser, and again used in the evaporator. Here, water can be used as the refrigerant, and lithium bromide can be used as the absorbing solution.

  Thus, the cold generated by the absorption refrigeration apparatus 52 is conveyed to the cold storage tank 53 through the refrigerant pipe 55B.

  The cold storage tank 53 is constructed of reinforced concrete or the like in a place where the temperature is stable such as underground. Moreover, the cool storage tank 53 is made high in heat insulation performance by disposing a heat insulating material on the wall, floor, and ceiling.

  Then, refrigerant pipes 55A and 55B are connected to the cold storage tank 53, and the cold heat generated by the heat pump refrigeration apparatus 51 and the cold heat generated by the absorption refrigeration apparatus 52 are carried and stored. Here, as a cold heat storage method, a method of manufacturing ice in the inner space of the cold storage tank 53 by cold heat or the like can be applied.

  In addition, a refrigerant pipe 55 </ b> C for extracting cold heat is connected to the cold storage tank 53, and an end thereof is connected to the cooling device 61 of the house 6.

  This house 6 is provided with electrical equipment 62 such as lighting, a refrigerator, a television, and a heat pump water heater. In addition, the cooling of the house 6 can be performed by the cooling device 61 that is operated by the cold supplied from the cold storage tank 53. Note that an air conditioner that is operated by electric power may be installed as the electrical equipment 62 for use in auxiliary cooling at high temperatures in summer or heating.

  Moreover, the cold heat of the cool storage tank 53 can be utilized not only for the cooling device 61 but also for a refrigerator, a drinking water cooler, and the like.

  Next, the operation of the energy supply system 1 and the house 6 according to the present embodiment will be described.

  The energy supply system 1 according to the present embodiment configured as described above includes a solar power generation device 2 and a solar thermal cogeneration device 3 that generate power and generate heat using solar energy.

  For this reason, a comfortable life in which the electric equipment 62 can be used can be provided even in an area where the lifeline is not maintained.

  Moreover, cold heat is produced | generated from the heat | fever discharged | emitted from the solar thermal cogeneration apparatus 3, and the electric power generated with the solar power generation device 2 and the solar thermal cogeneration apparatus 3, and it accumulates in the cool storage tank 53, and utilizes it for the air_conditioning | cooling apparatus 61.

  For this reason, even if surplus heat or surplus power is generated in a high temperature region such as a tropical or desert region, it is not wasted by using it for cooling, and solar energy can be utilized to the maximum extent.

  In addition, the storage amount of the cold storage tank 53 is maximized when the power consumption is low, such as in winter, and the cooling of the cold storage tank 53 is performed at a time when the power consumption is high in the summer. Can be leveled, and the scale of the solar power generation device 2 and the solar thermal cogeneration device 3 can be suppressed.

  Moreover, since such a cool storage tank 53 can build a large-sized thing with a comparatively low budget compared with the storage battery 4, the long-term energy storage which straddles a season is attained.

  Furthermore, by using the solar heat cogeneration device 3 that simultaneously generates heat and generates power, solar energy can be used more efficiently than the solar power generation device 2 that only generates power.

  Further, by using the heat pump refrigeration apparatus 51, natural energy other than solar energy such as outside air temperature can be effectively utilized.

  In this embodiment, an infrastructure free town 7 as a self-supporting area separated from a lifeline will be described with reference to FIG. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  The infrastructure-free town 7 described in FIG. 2 is an area where eight households similar to the house 6 described in the above embodiment gather.

  These houses 6,... Are provided with a solar power generation device 2, a solar thermal cogeneration device 3, and a storage battery 4, respectively. Here, the solar power generation device 2, the solar heat cogeneration device 3, and the storage battery 4 in each house 6 are used to operate the electrical equipment 62 in each house 6 in principle.

  Further, in the basement of the central plaza 72 surrounded by these houses 6..., A heat pump refrigeration device 51 as an electric cold heat generation device and an absorption refrigeration device 52 as an absorption cold heat generation device are shared. A storage battery 71 is installed. Furthermore, a large cold storage tank 53 is constructed in the basement where the ground of the central square 72 is excavated.

  Here, the heat pump refrigeration device 51, the absorption refrigeration device 52, the shared storage battery 71, and the cold storage tank 53 provided in the central plaza 72 are shared in this infrastructure free town 7, The houses 6, ... are not equipped with these devices.

  And the surplus electric power and surplus heat which were created in the house 6, ... but were not consumed or stored, are sent to the heat pump refrigeration apparatus 51, the absorption refrigeration apparatus 52 and the shared storage battery 71.

  Moreover, the electric power stored in the shared storage battery 71 is sent to the house 6 where the electric power is temporarily insufficient, or used to operate a street lamp in the infrastructure free town 7 and a water circulation system 8 described later.

  On the other hand, the heat pump refrigeration apparatus 51 and the absorption refrigeration apparatus 52 are operated by the electric power and the excess heat that is not stored in the shared storage battery 71, and cold heat is generated and stored in the cold storage tank 53. And the cold energy stored in the cold storage tank 53 is used for the cooling devices 61,... Of the houses 6,.

  The infrastructure free town 7 includes a water circulation system 8. The water circulation system 8 includes an advanced treatment septic tank 81 as a waste water treatment device for treating waste water, and a water storage tank 82 as a water supply device.

  In the advanced treatment septic tank 81, the wastewater discharged from the houses 6,... Is processed at a high level and the water quality is improved. Therefore, the water should be effectively used by distributing it to the toilet as reused water. Can do.

  In the water storage tank 82, the groundwater and rainwater pumped up are stored, and the water purified by the purification device (not shown) is supplied to the houses 6,.

  The infrastructure free town 7 of the present embodiment configured as described above is an area where a plurality of houses 6,... That receive energy supply from the energy supply system 1 are gathered.

  And the solar power generation device 2, the solar thermal cogeneration apparatus 3, and the storage battery 4 are arrange | positioned at each house 6, and the cool storage tank 53 becomes a structure shared in the whole area.

  For this reason, since the excess heat in a region can be collectively stored as cold heat, surplus heat can be easily collected and storage efficiency can be increased. Moreover, the cost per storage capacity can be reduced by enlarging the cold storage tank 53.

  In addition, by providing the water circulation system 8, not only lifelines such as electricity and gas, but also a region where a water and sewage system is not maintained can be put into a state where a comfortable life can be provided.

  Other configurations and operational effects are substantially the same as those in the above-described embodiment, and thus the description thereof is omitted.

  The best embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment and example, and the design does not depart from the gist of the present invention. Such modifications are included in the present invention.

  For example, in the above-described embodiments and examples, the solar heat cogeneration apparatus 3 that simultaneously generates power as the heat generation apparatus has been described. However, the present invention is not limited to this, and a heat collector that generates only heat is a heat generation apparatus. It may be.

  Moreover, although the said Example demonstrated the case where the one cool storage tank 53 was provided in the infrastructure free town 7, it is not limited to this, The some cool storage tank 53,53 can also be provided in an area. it can. Further, the heat pump refrigeration apparatus 51 or the absorption refrigeration apparatus 52 may also be configured to be arranged for each house 6 or each of the plurality of houses 6,.

It is explanatory drawing explaining the structure of the energy supply system and house of best embodiment of this invention. It is explanatory drawing explaining the structure of the infrastructure free town of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Energy supply system 2 Solar power generation device 3 Solar thermal cogeneration apparatus (heat generation apparatus)
4 Storage battery (power storage device)
51 Heat pump refrigeration system (electric cold generator)
52 Absorption refrigeration system (absorption type cold heat generator)
53 Cold storage tank 6 Housing (self-supporting housing)
61 Cooling system 7 Infrastructure free town (independent area)
8 Water circulation system 81 Advanced treatment septic tank (waste water treatment equipment)
82 Water storage tank (water supply device)

Claims (6)

An energy supply system using solar energy,
A solar power generation device that generates power with sunlight;
A heat generating device that generates at least heat by the solar energy;
A power storage device for storing electric power generated by the solar power generation device;
An electrical cold generator that generates cold by electric power;
An absorption-type cold heat generator that generates cold from the heat of the heat generator;
An energy supply system comprising: the electric cold heat generation device and a cold storage tank for storing cold heat generated by the absorption cold heat generation device.   The energy supply system according to claim 1, wherein the heat generation device is a solar heat cogeneration device that simultaneously generates power.   The energy supply system according to claim 1, wherein the electric cold heat generating device is a heat pump refrigeration device. A self-supporting housing comprising the energy supply system according to any one of claims 1 to 3,
A self-supporting house comprising: electrical equipment that is operated by electric power supplied from the solar power generation device or the power storage device; and a cooling device that is operated by cold energy stored in the cold storage tank. A self-supporting area composed of the energy supply system according to any one of claims 1 to 3 and a plurality of houses,
The solar power generation device, the heat generation device, and the power storage device are arranged in each house, and the cold storage tank is shared by the whole area or a plurality of houses.   The self-supporting area according to claim 5, further comprising a water circulation system having a waste water treatment device for treating the waste water of the house and a water supply device for supplying water to the house.

Images