JP2007188730A - Heat utilization system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively use an electrolytic solution circulation type battery in the winter season when there is less leveling effect by utilizing heat generated by an electrolytic solution of the electrolytic solution circulation type battery as a heat source of a heater or the like. <P>SOLUTION: This is a heat utilization system which includes the electrolytic solution circulation type battery 1 which includes as constituting elements a battery cell 11, a positive electrode tank 2, a negative electrode tank 3, a positive electrode electrolytic solution circulation passage 4 to circulate and supply a positive electrode electrolytic solution to the battery cell, a negative electrode electrolytic solution circulation passage 5 to circulate and supply a negative electrode electrolytic solution to the battery cell, and pumps 13, 14 installed at the respective electrolytic solution circulation passages, and mixing flow passages 71, 72 to mix an appropriate amount of a positive electrode electrolytic solution and a negative electrode electrolytic solution flowing in the respective electrolytic solution circulation passages, and in which the heat generated in the mixing flow passage is used in a heating system. A part in which the electrolytic solution generates heat in the mixing flow passage is assembled into a heat exchanger 812, and the electrolytic solution heat exchanged in the heat exchanger 812 is made to return to the electrolytic solution circulation passage. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heat utilization system including an electrolyte circulation type battery that charges and discharges by supplying a positive electrode electrolyte and a negative electrode electrolyte to a cell. In particular, the present invention relates to a heat utilization system that uses heat generated in an electrolytic solution as a heat source for a heating system.

  An electrolyte circulation type battery such as a redox flow battery has been conventionally used for load leveling, a measure against voltage sag, and the like, as disclosed in Patent Document 1, for example. FIG. 9 is an explanatory diagram showing the operating principle of the redox flow battery. This battery includes a cell 1A separated into a positive electrode cell 2A and a negative electrode cell 2B by a diaphragm 2C made of an ion exchange membrane. Each of the positive electrode cell 2A and the negative electrode cell 2B contains a positive electrode 3A and a negative electrode 3B.

  Connected to the positive electrode cell 2A is a positive electrode tank 4A that stores the positive electrolyte solution that is supplied to the positive electrode cell 2A and then discharged from the positive electrode cell 2A via a conduit 6A that serves as a circulation path for the electrolyte solution. A negative electrode tank 4B for storing a negative electrode electrolyte that is supplied to the negative electrode cell 2B and then discharged from the negative electrode 3B is connected to the negative electrode cell 2B via a conduit 6B that serves as a circulation path for the electrolyte.

  Each electrode electrolyte uses an ionic solution that changes in valence, such as vanadium ion, and the electrolyte is circulated by pumps 5A and 5B, and charge and discharge are performed in accordance with the ion valence change reaction in positive electrode 3A and negative electrode 3B. Do. For example, when an electrolytic solution containing vanadium ions is used, the reaction that occurs during charging and discharging in the cell is as follows.

The positive ^{electrode: V 4+ → V 5+ + e} - ( ^{charging) V 4+ ← V 5+ + e} - ( discharge)
The negative ^{electrode: V 3+ + e - → V} 2+ ( ^{charging) V 3+ + e - ← V} 2+ ( discharge)

  In addition, the charge / discharge reaction in the redox flow battery is affected by the temperature of the electrolytic solution, and the higher the temperature, the lower the internal resistance, so that a larger output is obtained and the battery capacity is improved. Therefore, as shown in Patent Document 2, there has been proposed a structure in which a positive electrode tank and a negative electrode tank are connected with a communication pipe near the bottom of the tank, and a valve is provided on the communication pipe. With this configuration, when the temperature of the electrolyte in at least one of the tanks is lower than a predetermined temperature, the valve is opened to mix the electrolyte in both tanks, and the electrolyte is self-discharged. The liquid is heated to raise the temperature.

  According to the configuration of Patent Document 2, even when the temperature of the electrolyte is low, such as when starting operation or when a new electrolyte is replenished from the outside, the positive electrode electrolyte and the negative electrode electrolyte are mixed via the communication pipe. Thus, heat can be generated by self-discharge to increase the temperature of the electrolytic solution and improve the battery capacity.

JP-A-8-138716 Japanese Patent Laid-Open No. 2001-43884

  When the electrolyte circulation type battery as described above is used for load leveling, it is usually designed according to the maximum power load in summer. However, since heating with a heat source such as gas is often used in the winter, the power peak is small and the amount of power used is reduced, and there is a leveling effect when the electrolyte circulation type battery is used for load leveling in the winter. Less merit to operate battery.

  By the way, when heating is performed, heating is performed using an electric heater, a heat pump chiller, a hot water heater (floor heating or the like), a combustion heater using gas or petroleum. When heating is performed using each such heating device, there are the following problems.

  Heating by an electric heater mainly uses daytime electricity, so there is a problem that the electricity bill becomes high.

  In the heating by the heat pump chiller, the capacity of the heat pump varies depending on the outside air temperature, and since the compressor is usually outdoors, the heat generated by the compressor escapes outdoors. Further, when heating is performed when the outside air temperature is very low, the outdoor unit tries to exchange heat with wind of 0 ° C. or less, so that the outdoor unit is often frosted and defrosting operation (heating stop) is often required. As described above, in the heating by the heat pump chiller, there is a problem in the heating performance such that the heating is not good and stops in the defrosting operation in the early morning when the heating is most necessary.

  In the case of hot water heating, the running cost is low because it mainly uses cheap electricity, gas, and oil at night, but the warmed water is transported and used for heating, so the water temperature decreases during transportation. However, it is difficult to adjust the temperature. In addition, usually a certain amount of warm water is made and this warm water is used as heating, so it is hot water type for irregular heating operation or operation with many changes such as heating some rooms irregularly. Heating is inefficient.

Heating with gas and petroleum is inexpensive and excellent in heating capacity, but there is an environmental problem of increasing exhaust gas and CO ₂ because fuel is burned.

  An object of the present invention is to provide a heat utilization system that solves the problems of the heating system by using heat generated in an electrolyte circulation type battery in winter when the effect of leveling is small and the battery operation merit is small.

  The present applicant pays attention to the heat generated in the electrolyte when charging / discharging the electrolyte circulation type battery, and uses the heat of the electrolyte in a heating system such as a heating device. It has been found that not only the problem can be solved, but also the utility value of the electrolyte circulation type battery in winter can be increased.

  The heat utilization system of the present invention includes an electrolyte circulation type battery, and a mixing channel for mixing an appropriate amount of a positive electrode electrolyte and a negative electrode electrolyte flowing through each electrolyte circuit of the electrolyte circulation type battery. The heat of the electrolytic solution generated in step 1 is used for a heating system.

  The electrolyte circulation type battery includes a battery cell to which a positive electrode electrolyte and a negative electrode electrolyte are supplied, a positive electrode tank in which a positive electrode electrolyte is stored, a negative electrode tank in which a negative electrode electrolyte is stored, and a positive electrode electrolyte. A positive electrode electrolyte circulation path that circulates and supplies to the battery cell, a negative electrode electrolyte circulation path that circulates and supplies the negative electrode electrolyte solution to the battery cells, and a pump provided in each electrolyte circulation path are included as constituent elements.

  In the present invention, the portion of the mixing channel where the electrolyte is generating heat is incorporated into a heating system such as a heating device, and the electrolyte is exchanged in the heating system.

  Examples of the heating system include a floor heater, a fan heater, and a heat pump chiller.

  In the present invention, an exothermic electrolytic solution is used as a heat source. In order to increase the calorific value, it is preferable to use a mixture of a charged positive electrode electrolyte and a negative electrode electrolyte as a heat source of the heat utilization system. Furthermore, it is preferable that the electrolyte solution of these positive electrodes and negative electrodes is mixed in an appropriate amount according to the amount of heat required in the heating system.

  For example, in the case of a floor heater, the heating water used in the heating unit of the floor heater is heated with the heat of the electrolyte, or the floor heater is heated. Directly using the heat of the electrolytic solution as the hot part.

  Further, in the case of a fan heater, the fluid flowing in the heat exchanger provided in the fan heater can be heated by the heat of the electrolytic solution, or directly used as the fluid flowing the electrolytic solution in the heat exchanger.

  In the case of a heat pump chiller, the refrigerant used for the heat pump chiller is heated by the heat of the electrolyte. In particular, heating the refrigerant flowing through the heat exchanger disposed outside the heat pump chiller with the heat of the electrolyte is preferable in preventing the generation of frost in winter.

  In the present invention, the positive electrode electrolyte and the negative electrode electrolyte are mixed in the mixing channel, and the electrolyte is heated by self-discharge by mixing. And the heat which generate | occur | produced in electrolyte solution is utilized with a heating system by incorporating in the heating system the part which the electrolyte solution in the mixing flow path is exothermic. In the heating system, the heat-exchanged electrolyte returns to the positive electrolyte circulation circuit and the negative electrolyte circulation circuit.

  It is preferable to provide an adjustment valve for adjusting the mixing amount of the positive electrode electrolyte and the negative electrode electrolyte in the mixing channel. Thus, by providing the adjusting valve in the mixing channel, the positive and negative electrolyte solutions can be easily and reliably mixed by the opening and closing operation of the adjusting valve so that the amount of heat required by the heating system can be obtained.

  Further, in the case of providing a regulating valve in the mixing channel, temperature detecting means for detecting the temperature of the electrolyte solution heat generation point in the mixing channel and electrolysis in the mixing channel by the regulating valve based on the detection result of the temperature detecting means. And a control means for controlling the mixing amount of the liquid.

  In this case, the temperature detection means detects the heat generation temperature of the electrolyte solution in the mixing flow path, and the control means controls the opening / closing operation of the regulating valve based on the detection result. The amount of the electrolyte solution mixed can be adjusted so that is obtained. Thus, by providing the temperature detection means and the control means, the heat generated in the electrolytic solution can be utilized in the heating system without excess or deficiency, so that reliable heating control is possible.

  Specifically, the mixing flow path includes an upstream part connected to the downstream side of the pump in each electrolyte circulation path, and a positive electrode electrolyte and a negative electrode electrolyte formed by joining the upstream flow paths. A joining portion that joins and a downstream portion that diverts the electrolyte flowing through the joining portion and returns it to the downstream side from the upstream connection position of each electrolyte circulation path.

  The upstream portion has a positive-electrode-side upstream portion connected downstream from the pump in the positive-electrode electrolyte circulation path and a negative-electrode-side upstream portion connected downstream from the pump in the negative-electrode electrolyte circulation circuit. The downstream portion also includes a positive-electrode-side downstream portion that returns the electrolyte solution to the positive-electrode electrolyte circulation path and a negative-electrode-side downstream portion that returns the electrolyte solution to the negative-electrode electrolyte circulation path.

  At the junction, the positive electrode electrolyte and the negative electrode electrolyte are mixed and the electrolyte generates heat. After the electrolyte solution is radiated in the heating system to exchange heat, the electrolyte solution after the heat exchange is divided into a positive electrode side and a negative electrode side to constitute a downstream portion.

  Further, the merging section may include a branch flow path in which the merged electrolyte solutions are divided and flowed, and an adjustment valve that controls the flow rate of the electrolyte solution to each branch flow path.

  In this case, the merging section divides the merged electrolyte solution into a plurality of parts before radiating heat in the heating system to form a branch flow path. And at least one part of a branch flow path is arrange | positioned in a heating system, and this part is used as a heating part in a heating system. Furthermore, a plurality of heating systems may be provided, and the branch flow paths may be provided separately in these heating systems, or a plurality of branch flow paths may be provided in one heating system. The regulating valve is preferably provided upstream of the inlet to the heating system in the branch channel.

  The mixed electrolyte can be circulated to any branch flow path among the branch flow paths by controlling the regulating valve. As a result, when multiple heating systems are provided and at least part of the branch flow paths are individually arranged in these heating systems, a branch flow path corresponding to an arbitrary heating system is selected from the plurality of heating systems. As a result, the heat of the electrolyte can be supplied to the selected branch channel.

  When a plurality of branch channels are provided in one heating system, the amount of heating in the heating system should be controlled by supplying electrolyte to the branch channel that generates heat by controlling the regulating valve. Can do.

  As described above, the circulation path of the electrolyte solution can be easily changed by the piping and the regulating valve constituting the branch flow path. For example, when a plurality of heating systems are used as a floor heater, a plurality of floor heaters can be freely used. Can be heated. When heating a plurality of rooms, the plurality of rooms can be individually heated as necessary by using each branch channel for heating each room. In addition, even when a room is heated under the floor, the interior of this room can be divided into a plurality of areas, and branching channels can be arranged corresponding to each area. The area can be heated.

  Further, the upstream portion of the positive electrode electrolyte and the upstream portion of the negative electrode electrolyte are branched into a plurality of portions, and the flow paths after branching are merged to form a plurality of merge portions, and the electrolyte solution to each merge portion in the upstream portion You may make it provide the adjustment valve which controls the flow volume of this.

  And at least one part of each joining part is arrange | positioned in a heating system, and this part is used as a heating part in a heating system. Further, a plurality of heating systems may be provided, and a plurality of merging portions may be separately disposed in these heating systems, or a plurality of merging portions may be disposed in one heating system. The regulating valve is preferably provided upstream from the junction.

  Also in this case, when a plurality of heating systems are used as a heater, the merging position of each merging portion is arranged near each heater or in the heater facility with respect to the plurality of heaters. Since the distance from the joining position of the electrolyte solution to the heating part of the heater as a load can be shortened as much as possible, the heat dissipation loss during the transportation of the electrolyte solution can be minimized. As a result, the utilization efficiency of the heat generated in the electrolyte is improved.

  When the heating system is a floor heater, a heat generating portion in the mixing flow path can be disposed under the floor, and this heat generating portion can be used as a heating unit of the floor heater. By disposing the heat generating part in the mixing channel under the floor, the floor surface can be directly warmed by circulating the heat generating electrolyte under the floor. In this way, since the electrolyte generated by mixing is dissipated under the floor, it can be used for heating without waste. Furthermore, since the mixing flow path of the present invention replaces the hot water pipe constituting the heating section of the conventional floor heater, the hot water pipe can be dispensed with.

  Further, the heating system is a floor heater, and a hot water pipe is disposed under the floor so that water flowing through the hot water pipe can be heated by the heat of the electrolyte flowing through the electrolyte heating portion of the mixing channel.

  In the case of hot water heating, it becomes possible to use the excess energy in the electrolyte circulation battery to heat the hot water used in existing floor heaters, and heat exchange to heat the hot water used in the past The vessel can be made unnecessary. As a result, by combining the electrolyte circulation type battery and the existing hot water floor heating facility, floor heating can be performed by effectively utilizing inexpensive nighttime electric power by the electrolyte circulation type battery.

  When the heating system is a heat pump chiller, it is preferable to heat the refrigerant flowing through the refrigerant pipe provided in the heat pump chiller with the heat of the electrolytic solution flowing through the electrolytic solution heating portion of the mixing channel. In this case, at low temperatures, the refrigerant flowing through the outdoor unit of the heat pump chiller is heated with the heat generated by the electrolyte, thereby suppressing the generation of frost in the outdoor unit and improving the heating function of the heat pump. Can do. As a result, it is possible to provide a heat pump chiller that is highly efficient, excellent in heating capacity, and capable of obtaining stable heating capacity.

In addition, the electrolyte circulation type battery can be charged using cheap and clean nighttime power obtained mainly by nuclear power generation, and the heat pump chiller can be driven using the heat of the electrolyte solution of the electrolyte circulation type battery. . Therefore, it is not necessary to use fuel heating such as gas or oil as a heating heat source in the morning of winter, which has been a problem in the popularization of all electrification, and it is effective for CO ₂ reduction.

  The electrolyte solution used in the electrolyte circulation type battery of the heat utilization system of the present invention has a high electromotive force, a large energy density, and the electrolyte solution is a single element system. A vanadium ion solution having many advantages that it can be regenerated by charging even if mixed is preferred. For each electrolyte circulation path and mixing channel, a pipe formed of an insulating material may be used so that an accident such as a short circuit does not occur even when the electrolyte contacts.

  Further, the control means for controlling each regulating valve described above is performed using a computer, a sequencer (programmable logic controller), or the like.

  The heat utilization system of the present invention having the above configuration generates heat by mixing a proper amount of positive and negative electrode electrolytes as necessary, and uses this heat as a heat source of a heating system such as a heating device. The heat generated by the charge / discharge loss is used as a heat source for the heating system.

  By configuring the heat utilization system in this way, the energy stored in the electrolytic solution can be taken out as a necessary amount of heat when necessary and used for the heating system.

  As a result, the energy accumulated in the electrolyte can be used not only as electricity but also as a heat source, so that the electrolyte circulation type battery can be effectively used throughout the year, including in winter when the power load is low.

  Furthermore, in the heat utilization system of the present invention, the heat used in the heating system is the heat generated by mixing the positive electrode electrolyte and the negative electrode electrolyte of the electrolyte itself that is the heat medium, and the necessary amount at the required place. Since heat is extracted only by mixing, waste such as heat dissipation loss during heat conduction that occurs when an electric heater or the like is used as a heat source as in the prior art is reduced, and the temperature controllability of the heat utilization system is excellent.

  In addition, the heat utilization system of the present invention stores the heat energy to be used as chemical energy and converts it into heat energy even compared to existing heat storage and heating equipment that stores cheap nighttime power and surplus power with heat. Therefore, there is no heat dissipation loss as in the case of the heat storage and heating equipment, the use efficiency of the heat energy is increased, and the controllability of heat with respect to the heating load is good.

  Embodiments of the present invention will be described below.

[First Embodiment]
FIG. 1 is a schematic configuration diagram of a first embodiment of a heat utilization system according to the present invention. The heat utilization system according to the present embodiment includes an electrolyte circulation type battery, and a mixing channel that mixes an appropriate amount of a positive electrode electrolyte and a negative electrode electrolyte flowing through each electrolyte circulation path of the electrolyte circulation type battery. The heat of the electrolyte generated in the flow path is used for floor heating equipment that is a heating system.

  In the present embodiment, a redox flow battery is used as the electrolyte circulation type battery 1. The electrolyte circulation type battery 1 includes a battery cell 11, a positive electrode tank 2 that stores a positive electrode electrolyte supplied / discharged to the battery cell 11, and a negative electrode tank that stores a negative electrode electrolyte supplied / discharged to the battery cell 11. 3 and an AC / DC converter 12.

  The battery cell 11 and the positive electrode tank 2 communicate with each other through a positive electrode electrolyte circulation path 4 that circulates and supplies the positive electrode electrolyte between the battery cell 11 and the positive electrode tank 2. The battery cell 11 and the negative electrode tank 3 are communicated with each other through a negative electrode electrolyte circulation path 5 that circulates and supplies a negative electrode electrolyte between the battery cell 11 and the negative electrode tank 3.

  The cathode electrolyte circulation path 4 includes an upstream cathode pipe 41 connected to the upstream side with respect to the battery cell 11 and a downstream cathode pipe 42 connected to the downstream side. A pump 13 is provided.

  The negative electrode electrolyte circulation path 5 includes an upstream negative electrode pipe 51 connected to the upstream side with respect to the battery cell 11 and a downstream negative electrode pipe 52 connected to the downstream side. A pump 14 is provided. Further, the positive electrode tank 2 and the negative electrode tank 3 are communicated with each other through a communication pipe 6.

The battery cell 11 has a stacked structure in which a plurality of single-layer cells are stacked. In this embodiment, the basic configuration of the battery cell 11 is the same as that of the cell 1A shown in FIG. 9, and is separated into a positive electrode cell and a negative electrode cell by an ion exchange membrane (diaphragm). The negative electrode is built in, and a positive electrode electrolyte and a negative electrode electrolyte are supplied to each electrode. In this embodiment, a solution containing V ⁵⁺ is used for the positive electrode electrolyte, and a solution containing V ²⁺ is used for the negative electrode electrolyte.

  In this embodiment, in order to mix the positive electrode electrolyte flowing through the positive electrode electrolyte circulation path 4 and the negative electrode electrolyte flowing through the negative electrode electrolyte circulation path 5, a positive electrode electrolyte mixing pipe 71 serving as a mixing flow path. One end of the positive electrode pipe 41 is connected to the upstream side positive electrode pipe 41, and the other end of the positive electrode electrolyte mixing pipe 71 is connected to the downstream side negative electrode pipe 52. Furthermore, one end of a negative electrode electrolyte mixing pipe 72 that also serves as a mixing flow path is connected to the upstream negative electrode pipe 51, and the other end of the negative electrode electrolyte mixing pipe 72 is connected to the downstream positive electrode pipe.

  The positive electrode electrolyte mixing pipe 71 is branched into a positive side merging pipe portion 71a and a positive side branch pipe portion 71b. The downstream end portion of the positive electrode side joining pipe portion 71 a is connected to the downstream negative electrode pipe 52 of the negative electrode electrolyte circulation path 5. The downstream end of the positive branch pipe 71b is connected to the negative electrolyte mixing pipe 72 so that the positive electrolyte is sent to the negative electrolyte mixing pipe 72.

  Also, the negative electrode electrolyte mixing pipe 72 is branched into a negative electrode side junction pipe part 72a and a negative electrode side branch pipe part 72b on the way. The downstream end portion of the negative electrode side joining pipe portion 72 a is connected to the downstream positive electrode pipe 42 of the positive electrode electrolyte circulation path 4. The downstream end portion of the negative electrode side branch pipe portion 72b is connected to the positive electrode electrolyte mixing pipe 71, and the negative electrode electrolyte is sent to the positive electrode electrolyte mixing pipe 71.

  In the present embodiment, in the positive electrode electrolyte mixing pipe 71, the upstream pipe part before branching becomes the upstream part, and the downstream side becomes the joining part from the position where the negative side branch pipe part 72b is connected. The positive-side merging pipe portion 71a after heat exchange in the exchanger 812 becomes the downstream portion.

  Also, in the negative electrode electrolyte mixing pipe 72, the upstream pipe part before branching becomes the upstream part, and the downstream side from the position where the positive branch pipe part 71b is connected becomes the joining part, and the heat exchanger 812 The negative electrode side merging pipe portion 72a after the replacement becomes the downstream portion.

  In the present embodiment, the negative electrode electrolyte from the negative branch pipe portion 72b is mixed with the positive electrode electrolyte flowing through the positive electrode side merge pipe portion 71a of the positive electrode electrolyte mixing pipe 71, thereby the downstream side from the electrolyte merge position. The electrolyte solution generates heat in the positive electrode side joining pipe portion 71a. Further, the negative electrode electrolyte flowing from the negative electrode side merging pipe part 72a of the negative electrode electrolyte mixing pipe 72 is mixed with the positive electrode electrolyte from the positive electrode side branch pipe part 71b, so that the negative electrode side downstream from the electrolyte merging position The electrolyte solution generates heat at the junction pipe portion 72a.

  Then, the heat generated in the positive side merging pipe portion 71a and the negative side merging pipe portion 72a of the heat utilization system of the present embodiment is the floor heating panel 811, the heat exchanger 812, the floor heating panel 811 and the heat exchanger 812. It is used in a floor heater 81 (heating system) having a hot water circulation path 813 for circulating hot water between them. The floor heating panel 811 of the floor heater 81 is heated with hot water flowing through the hot water circulation path 813. The hot water circulation path 813 is provided with a pump 814 for circulating hot water.

  Further, in the heat exchanger 812, the hot water circulation path 813 is arranged in a meandering manner, and the positive side merging pipe portion 71a and the negative side merging pipe portion 72a are also arranged in a meandering manner, so that the hot water circulation path 813 has a positive side merging piping portion. 71a and the negative side merging pipe portion 72a are overlapped. In the heat exchanger 812, the hot water flowing through the hot water circulation path 813 is heated by the heat of the electrolyte flowing through the positive electrode side joining pipe portion 71a and the negative electrode side joining pipe portion 72a.

  Further, the heat exchanger 812 is provided with temperature detection means 15 for detecting the temperature of the water temperature flowing through the hot water circulation path 813. Since the heat exchanger 812 is a heat generating portion of the electrolytic solution in the floor heater 81, the temperature detecting means 15 detects the temperature of the water heated by the heat of the electrolytic solution, thereby detecting the temperature of the electrolytic solution. Can do.

  Furthermore, in this embodiment, a large number of regulating valves are provided in the piping through which the electrolytic solution flows. The first regulating valve 91 is located downstream of the connection position of the positive electrode electrolyte mixing pipe 71 in the upstream positive electrode pipe 41 and the downstream side of the connection position of the negative electrode electrolyte mixing pipe 72 in the upstream negative electrode pipe 51. Two adjustment valves 92 are provided. A third regulating valve 93 is provided downstream of the branch position of the positive-side merging pipe portion 71a with the positive-side branch pipe portion 71b and upstream of the connection position of the negative-electrode-side branch pipe portion 72b. A fourth regulating valve 94 is provided downstream of the branching position of the negative side merging pipe part 72a with the negative side branch pipe part 72b and upstream of the connection position of the positive side branch pipe part 71b.

  A fifth adjustment valve 95 is provided in the positive side branch piping portion 71b, and a sixth adjustment valve 96 is provided in the negative side branch piping portion 72b. A communication regulating valve 6 a is provided in the communication pipe 6. In the present embodiment, by opening the communication adjustment valve 6a provided in the communication pipe 6, the positive electrode tank 2 and the negative electrode tank 3 are connected to adjust the temperature of the electrolyte solution in each tank. ing.

  These regulating valves are controlled to be opened and closed by a valve controller 16 (control means). Depending on whether or not the floor heater 81 is used, the valve controller 16 further uses the temperature of the hot water in the heat exchanger 812 detected by the temperature detecting means 15 when the floor heater 81 is used. Control the opening and closing of each regulating valve.

  Specifically, the operation control of the battery system in the present embodiment will be described. Normally, as a secondary battery for power storage, the electrolytic solution is supplied from the positive and negative tanks to the battery cells, and the electrolytic solution discharged from the battery cells is returned to each tank. I do.

  During this charging / discharging, the first regulating valve 91 and the second regulating valve 92 are opened, and the positive electrode electrolyte mixing pipe 71 and the negative electrode electrolyte mixing pipe 72 which are mixing channels are connected to the positive electrode. When mixing the electrolytic solution and the negative electrode electrolytic solution, the first regulating valve 91 and the second regulating valve 92 are closed.

  The third adjustment valve 93 to the sixth adjustment valve 96 provided in the mixing flow path are electrically operated, and the temperature detection means 15 detects the temperature of the hot water flowing through the heat exchanger 812, and the valve is based on the detection result. The amount of mixing is adjusted by controlling the opening degree.

  Specifically, while the floor heater 81 is being driven, when the temperature of the hot water in the heat exchanger 812 is equal to or lower than a predetermined temperature, the third adjustment valve 93 to the sixth adjustment valve 96 are fully opened, When the heater 81 is stopped, the third adjustment valve 93 to the sixth adjustment valve 96 are closed. In addition, when the temperature of the hot water in the heat exchanger 812 exceeds a predetermined temperature, the flow rate of the electrolyte is controlled by adjusting the opening degree of the third adjustment valve 93 to the sixth adjustment valve 96 according to the temperature. Or close it.

  By opening the sixth adjustment valve 96 from the third adjustment valve 93, the positive electrode electrolyte and the negative electrode electrolyte are mixed in the positive electrode side merging pipe portion 71a and the negative electrode side merging pipe portion 72a, and the electrolyte self-discharges to generate heat. To do.

  The heat generated in the electrolyte is exchanged with the warm water flowing through the warm water circulation path 813 in the heat exchanger 812 to heat the warm water, and the floor heating panel 811 is heated with this warm water.

  When the electrolytic solution is mixed, the first regulating valve 91 and the second regulating valve 92 are closed so that the heated electrolyte solution does not flow into the battery cell 11.

  The temperature detected by the temperature detecting means 15 is such that the temperature detecting means detects the temperature of each electrolyte flowing through the positive side merging pipe portion 71a and the negative side merging pipe portion 72a disposed in the heat exchanger 812. It may be. In this case, it is preferable to detect the temperature of the electrolytic solution after heat exchange with warm water. In this embodiment, existing hot water circulation path 813 and floor heating panel 811 are used.

[Second Embodiment]
In 1st Embodiment, the mixing flow path was comprised by the piping for positive electrode electrolyte mixing, and the piping for negative electrode electrolyte mixing, these piping was branched on the way, and it merged with each piping, and mixed the electrolyte solution. .

  In the heat utilization system of the second embodiment, as shown in FIG. 2, the configuration of the mixing channel, the configuration of the heat exchanger 812 of the floor heater 81, the number and arrangement locations of the regulating valves provided in the mixing channel are the first. Different from the embodiment. The second embodiment also uses a floor heater as a heating system, except for the configuration of the mixing channel, the configuration of the heat exchanger 812 of the floor heater 81, the number of adjustment valves provided in the mixing channel, and the arrangement location, Since it is the same structure as 1st Embodiment, description is abbreviate | omitted about the same component.

  In the second embodiment, as shown in FIG. 2, the mixing flow path includes a positive electrode side mixing pipe upstream portion 73, a negative electrode side mixing pipe upstream portion 74, a mixing pipe merging portion 75, and a positive electrode side mixing portion. The pipe downstream portion 76 and the negative electrode side mixing pipe downstream portion 77 are configured.

  The positive electrode side mixing pipe upstream part 73 is connected to the upstream positive electrode pipe 41, and the negative electrode side mixing pipe upstream part 74 is connected to the upstream negative electrode pipe 51. The mixing pipe joining portion 75 is formed by joining the downstream end portions of the positive electrode side mixing pipe upstream portion 73 and the negative electrode side mixing pipe upstream portion 74. The positive electrode side mixing pipe downstream portion 76 and the negative electrode side mixing pipe downstream portion 77 are formed by branching the downstream end of the mixing pipe confluence portion 75, and the positive electrode side mixing pipe downstream portion 76 is connected to the downstream positive electrode. Connected to the pipe 42, the negative electrode side mixing pipe downstream portion 77 is connected to the downstream negative electrode pipe 52. In the present embodiment, the mixing pipe joining portion 75 is formed in a meandering shape, and this meandering portion is incorporated in the heat exchanger 812.

  Then, the third adjustment valve 93a is provided in the positive electrode side mixing pipe upstream portion 73, the fourth adjustment valve 94a is provided in the negative electrode side mixing pipe upstream portion 74, and the downstream side from the outlet of the heat exchanger 812 in the mixing pipe confluence portion 75. Is provided with a fifth adjusting valve 95a.

  These regulating valves are also controlled to be opened and closed by the valve controller 16 (control unit) based on the hot water temperature of the heat exchanger 812 detected by the temperature detecting means 15.

  Similarly to the first embodiment, the operation control of the heat utilization system in the present embodiment is also performed by charging / discharging the electrolyte circulation battery 1 as a secondary battery for power storage, and electrolysis as a heat source of the floor heater 81. Operation control using liquid is performed.

  During charging / discharging, the first regulating valve 91 and the second regulating valve 92 are opened, and the third regulating valve 93a to the fifth regulating valve 95a provided in the mixing flow path are closed. When mixing the positive electrode electrolyte and the negative electrode electrolyte, the first adjustment valve 91 and the second adjustment valve 92 are closed, and the third adjustment valve 93a to the fifth adjustment valve 95a provided in the mixing channel are Keep it open.

  The third to fifth adjusting valves 93a to 95a provided in the mixing channel perform opening / closing control based on the hot water temperature of the heat exchanger 812 detected by the temperature detecting means 15 while the floor heater 81 is being driven. .

  By opening the third regulating valve 93a and the fourth regulating valve 94a, the positive electrode electrolyte and the negative electrode electrolyte are mixed in the mixing pipe junction 75, and the electrolyte self-discharges to generate heat.

  The heat generated in the electrolyte is exchanged with the warm water flowing through the warm water circulation path 813 in the heat exchanger 812 to heat the warm water, and the floor heating panel 811 is heated with this warm water. In the second embodiment, the piping structure of the mixing channel can be simplified as compared with the first embodiment.

[Third Embodiment]
The third embodiment also uses a floor heater as a heating system that uses a heat utilization system. As shown in FIG. 3, the configuration of the mixing channel, the configuration of the floor heater 81, and the regulating valve provided in the mixing channel The number and the arrangement location are different from those of the above-described embodiments. In the third embodiment, the description of the same components as those in the first embodiment is omitted.

  Also in the third embodiment, one end of the positive electrode electrolyte mixing pipe 71 serving as a mixing flow path is connected to the upstream positive electrode pipe 41 of the positive electrode electrolyte circulation path 4 and the positive electrode electrolysis is connected to the downstream negative electrode pipe 52 of the negative electrode electrolyte circulation path 5. The other end of the liquid mixing pipe 71 is connected. Furthermore, one end of the negative electrode electrolyte mixing pipe 72 that becomes the mixing flow path is connected to the upstream negative electrode pipe 51 of the negative electrode electrolyte circulation path 5, and the negative electrode electrolyte mixing pipe is connected to the downstream positive electrode pipe 42 of the positive electrode electrolyte circulation path 4. The other end of 72 is connected.

  The positive electrode electrolyte mixing pipe 71 is branched into a positive side merging pipe part 71a and a positive side branch pipe part 71b on the way, and the positive side merging pipe part 71a is further branched into a plurality of branches. . As in the first embodiment, the downstream end of the positive electrode side branch pipe portion 71b is connected to the negative electrode electrolyte mixing pipe 72.

  Also, the negative electrode electrolyte mixing pipe 72 is branched into a negative side merging pipe part 72a and a negative side branch pipe part 72b in the middle, and the negative side merging pipe part 72a is further branched into a plurality of branches. ing. Similarly to the first embodiment, the downstream end of the negative-side branch pipe portion 72b is connected to the positive-electrode electrolyte mixing pipe 71.

  In the third embodiment, each of the positive-side merging pipe portion 71a and the negative-side merging pipe portion 72a is branched into a large number after the electrolyte is merged, and the floor heating panel of the floor heater 81 is provided in each branch passage. A heating unit 815 for heating 811a, 811b, and 811c is configured. Further, these branch flow paths are joined again downstream from the outlets of the floor heating panels 811a, 811b, 811c.

  In the third embodiment, the floor heater 81 has a plurality of floor heating panels 811a, 811b, 811c, and no hot water circulation path is provided. In the third embodiment, the floor heating panels 811a, 811b, and 811c are heated by the heating portions 815 of the positive-side merging pipe portion 71a and the negative-side merging pipe portion 72a instead of the hot water circulation path. . Each floor heating panel 811a, 811b, 811c is arranged individually for a plurality of rooms. In each of the floor heating panels 811a, 811b, and 811c, heating portions 815 of the positive-side joining pipe portion 71a and the negative-side joining pipe portion 72a are arranged. In this embodiment, each floor heating panel 811a, 811b, 811c is an individual heating system.

  Further, the heating unit 815 is arranged in a meandering manner in each of the floor heating panels 811a, 811b, 811c, and the whole of the floor heating panels 811a, 811b, 811c is efficiently heated by this meandering arrangement. It is like that.

  Also in this embodiment, a large number of regulating valves that are controlled to open and close by the valve controller 16 are provided. Similarly to the first embodiment, the first adjustment valve 91 is provided in the upstream-side positive electrode pipe 41, and the second adjustment valve 92 is provided in the upstream-side negative electrode pipe 51. A third regulating valve 93 is provided upstream of the connection position of the negative electrode side branch pipe portion 72b in the positive electrode side merge pipe portion 71a. A fourth regulating valve 94 is provided upstream of the connection position of the positive-side branch pipe portion 71b in the negative-side merging pipe portion 72a. A fifth adjustment valve 95 is provided in the positive side branch piping portion 71b, and a sixth adjustment valve 96 is provided in the negative side branch piping portion 72b. The first adjustment valve 91 to the sixth adjustment valve 96 have the same configuration as in the first embodiment.

  In the present embodiment, the regulating valves (seventh regulating valve 97, ninth) are further downstream from the branching point branched into a large number of the positive-side merging pipe portion 71a and upstream from the inlets of the floor heating panels 811a, 811b, 811c. A regulating valve 99, an eleventh regulating valve 101... Are provided downstream of the branching point branched into a large number of the negative side joining pipe portion 72a and upstream of the inlets of the floor heating panels 811a, 811b, 811c. 8 adjusting valve 98, 10th adjusting valve 100, 12th adjusting valve 102.

  Although not shown in the present embodiment, in each of the floor heating panels 811a, 811b, 811c, the temperature of the electrolyte flowing through the heating unit 815 disposed in the heating panel is detected by the temperature detection means. Yes. Based on the detection result, the opening / closing control of each regulating valve is performed to control the amount of electrolyte mixed and the flow rate of the electrolyte circulating through the respective floor heating panels 811a, 811b, 811c.

  In the operation control of the battery system in the present embodiment, when the floor heater 81 is operated, the third adjustment valve 93 to the sixth adjustment valve with the first adjustment valve 91 and the second adjustment valve 92 closed. Make 96 open. Further, according to the temperature at each floor heating panel 811a, 811b, 811c, and so as to circulate the electrolyte to the floor heating panels 811a, 811b, 811c that need heating, the positive side and the negative side merge Open / close control of the regulating valve provided in the branch flow path in the piping portion is performed.

  Further, in the operation control of the battery system in the present embodiment, when the floor heater 81 is not operated, the first adjustment valve 91 and the second adjustment valve 92 are opened, and the third adjustment valve 93 to the sixth adjustment valve are opened. Close 96.

  In this embodiment, since the merged pipe portion through which the mixed electrolyte flows is incorporated in the floor heating panels 811a, 811b, 811c, the heat radiation of the electrolyte can be used for floor heating without waste. In addition, the junction pipe section is branched to allow the electrolyte to circulate through a plurality of heating panels, and only the heating panels that require heating are heated by controlling the opening and closing of the regulating valves provided in the branch flow paths. It becomes possible to do.

  Further, in the electrolyte circulation type battery system of the present embodiment, a hot water circulation path for heating the floor heating panel, a heat exchanger, and a pump for circulating the hot water are unnecessary.

[Fourth Embodiment]
The fourth embodiment also uses a floor heater as a heating system that uses the heat utilization system. As shown in FIG. 4, the floor heater 81 has a plurality of floor heating panels 811a as in the third embodiment. , 811b, 811c, and the floor heating panels 811a, 811b, 811c are directly heated by the electrolyte flowing through the mixing channel.

  The fourth embodiment differs from the third embodiment in the configuration of the mixing channel, the number of adjusting valves provided in the mixing channel, and the arrangement location. In the fourth embodiment, the configuration of the battery cell 11, the AC / DC converter 12, the positive electrode tank 2, the negative electrode tank 3, the positive electrode electrolyte circulation path 4, the negative electrode electrolyte circulation path 5, and the circulation pumps 13 and 14 are as described above. It is the same structure as each embodiment, and the mixing flow path has the same component as the mixing flow path of 2nd Embodiment. Description of the same components is omitted.

  In the fourth embodiment, as in the second embodiment, the mixing flow path includes the positive electrode side mixing pipe upstream part 73, the negative electrode side mixing pipe upstream part 74, the mixing pipe merging part 75, and the positive electrode side mixing. The pipe downstream part 76 and the negative electrode side mixing pipe downstream part 77 are configured. In the fourth embodiment, the mixing pipe joining portion 75 is branched into a large number after the electrolyte is joined to form branch passages, and the floor heating panel of the floor heater 81 is formed in each branch passage. A heating unit 815 for heating 811a, 811b, and 811c is configured. Further, these branch flow paths are joined again downstream from the outlets of the floor heating panels 811a, 811b, 811c. In each of the floor heating panels 811a, 811b, 811c, a heating unit 815 of the mixing pipe joining unit 75 is disposed.

  Further, the heating unit 815 is also arranged in a meandering manner in each of the floor heating panels 811a, 811b, 811c, and the whole of the floor heating panels 811a, 811b, 811c is efficiently heated by this meandering arrangement. . Also in this embodiment, a large number of regulating valves that are controlled to open and close by the valve controller 16 are provided.

  A first adjustment valve 91 is provided in the upstream positive electrode pipe 41, and a second adjustment valve 92 is provided in the upstream negative electrode pipe 51. A third adjustment valve 93a is provided in the positive electrode side mixing pipe upstream portion 73, and a fourth adjustment valve 94a is provided in the negative electrode side mixing pipe upstream portion 74.

  In the present embodiment, the regulating valves (the fifth regulating valve 95b, the seventh regulating valve 95b, the seventh regulating valve) are further downstream from the branching point where the mixing pipe merging portion 75 is branched in many, and upstream from the inlets of the floor heating panels 811a, 811b, 811c. A regulating valve 97b, a ninth regulating valve 99b..., And regulating valves (sixth regulating valve 96b, eighth regulating valve 98b, downstream of the outlets of the floor heating panels 811a, 811b, 811c of the mixing pipe junction 75) A tenth regulating valve 100b ...) is provided.

  Although not shown in the present embodiment, the temperature detection means detects the temperature of the electrolyte flowing in the heating unit 815 disposed in the heating panel in each floor heating panel 811a, 811b, 811c. Yes. Based on the detection result, opening / closing control of each regulating valve provided in the mixing flow path is performed to control the mixing amount of the electrolytic solution and the flow rate of the electrolytic solution for circulating the respective floor heating panels 811a, 811b, 811c.

  In the operation control of the battery system in this embodiment, when the floor heater 81 is operated, the third adjustment valve 93a to the fourth adjustment valve are closed with the first adjustment valve 91 and the second adjustment valve 92 closed. Open 94a. Further, a regulating valve provided in the mixing pipe junction 75 to circulate the electrolyte according to the temperature in each floor heating panel 811a, 811b, 811c for the floor heating panels 811a, 811b, 811c that require heating. The opening / closing control of the fifth adjusting valve 95b to the tenth adjusting valve 100b is performed.

  In the operation control of the battery system in the present embodiment, when the floor heater 81 is not operated, the first adjustment valve 91 and the second adjustment valve 92 are opened, and the third adjustment valve 93a and the fourth adjustment valve are opened. 94a closes.

  Similarly to the third embodiment, the present embodiment is also configured to incorporate the pipe through which the mixed electrolyte flows into the floor heating panels 811a, 811b, 811c, so that the heat dissipation of the electrolyte can be used without waste. Further, the mixing pipe joining section 75 is branched so that the electrolyte is circulated through the plurality of floor heating panels 811a, 811b, 811c, and heating is performed by controlling the opening and closing of the adjusting valve provided in the mixing pipe joining section 75. It is possible to heat only the floor heating panels 811a, 811b, and 811c that require heat.

  Furthermore, this embodiment also eliminates the need for a hot water circulation path for heating the floor heating panel, a heat exchanger, and a pump for circulating the hot water.

[Fifth Embodiment]
The fifth embodiment also uses a heater as a heating system that uses the heat utilization system. As shown in FIG. 5, the floor heater 81 has a plurality of floor heating panels 811a, The floor heating panels 811a, 811b, 811c are directly heated by the electrolyte solution having 811b, 811c and flowing through the mixing channel.

  In the fifth embodiment, the electrolyte solution is mixed near the entrance of each floor heating panel 811a, 811b, 811c. Also in the fifth embodiment, the configuration of the battery cell 11, the AC / DC converter 12, the positive electrode tank 2, the negative electrode tank 3, the positive electrode electrolyte circulation path 4, the negative electrode electrolyte circulation path 5, and the circulation pumps 13 and 14 are as described above. It is the same structure as each embodiment, and the mixing flow path has the same component as the mixing flow path of the fourth embodiment. Description of the same components is omitted.

  The fifth embodiment is a modification of the configuration of the mixing channel in the fourth embodiment, and the mixing channel includes the positive electrode side mixing pipe upstream portion 73 and the negative electrode side mixing, as in the fourth embodiment. The pipe upstream portion 74, the mixing pipe joining portion 75, the positive electrode side mixing pipe downstream portion 76, and the negative electrode side mixing pipe downstream portion 77 are configured. In the fifth embodiment, the positive electrode side mixing pipe upstream portion 73 and the negative electrode side mixing pipe upstream portion 74 are each branched into a large number of branch flow paths, and each branch flow path is heated under the floor. A plurality of mixing pipe joining portions 75 are formed by joining near the inlets of the panels 811a, 811b, and 811c. Each mixing pipe junction 75 is a heating unit 815 for heating a plurality of floor heating panels 811a, 811b, 811c of the floor heater 81. Further, the mixing pipe joining portion 75 is joined downstream from the outlets of the floor heating panels 811a, 811b, 811c.

  In the present embodiment, an adjustment valve that is controlled to open and close by the valve controller 16 is provided as follows.

  A first adjustment valve 91 is provided in the upstream positive electrode pipe 41, and a second adjustment valve 92 is provided in the upstream negative electrode pipe 51. A third regulator valve 93a is provided upstream from the branch position in the positive electrode side mixing pipe upstream portion 73, and a fourth regulator valve 94a is provided upstream from the branch position in the negative electrode side mixing pipe upstream portion 74.

  In the present embodiment, further, regulating valves (fifth regulating valve 95c, eighth regulating valve 98c, eleventh regulating valve 101c,...) Are provided downstream from the branch position in the positive electrode side mixing pipe upstream portion 73 for the negative electrode side mixing. Adjusting valves (sixth adjusting valve 96c, ninth adjusting valve 99c, twelfth adjusting valve 102c,...) Are provided downstream from the branch position in the pipe upstream portion 74. Then, downstream of the outlets of the floor heating panels 811a, 811b, 811c in the mixing pipe junction 75, before the electrolytes from the floor heating panels 811a, 811b, 811c join, the regulating valves (seventh regulating valve 97c, A tenth regulating valve 100c, a thirteenth regulating valve 103c, ...) are provided.

  Although not shown in the present embodiment, the temperature detection means detects the temperature of the electrolyte flowing in the heating unit 815 disposed in the heating panel in each floor heating panel 811a, 811b, 811c. Yes. Based on the detection result, opening / closing control of each regulating valve provided in the mixing flow path is performed to control the mixing amount of the electrolytic solution and the flow rate of the electrolytic solution for circulating the respective floor heating panels 811a, 811b, 811c.

  In the operation control of the battery system in the present embodiment, when the floor heater 81 is operated, the third adjustment valve 93a and the fourth adjustment valve are closed with the first adjustment valve 91 and the second adjustment valve 92 closed. Open 94a. In addition, other adjustments provided in the mixing channel to circulate the desired electrolyte according to the temperature at each floor heating panel 811a, 811b, 811c for the floor heating panels 811a, 811b, 811c that require heating Controls opening and closing of the valve.

  In the operation control of the battery system in the present embodiment, when the floor heater 81 is not operated, the first adjustment valve 91 and the second adjustment valve 92 are opened, and the third adjustment valve 93a and the fourth adjustment valve are opened. Close 94a.

  Also in this embodiment, since the piping through which the mixed electrolyte flows is incorporated in the floor heating panels 811a, 811b, 811c, the heat dissipation of the electrolyte can be used without waste, and immediately after the electrolyte is mixed In addition, since the floor heating panels 811a, 811b, and 811c are heated, the heat dissipation loss can be reduced as much as possible, and the waste of heat is eliminated. As a result, even when the heating load is separated from the battery body or when the mixing flow path passes through a cold place such as outdoors, the heat of the electrolyte can be used effectively.

  Furthermore, since the electrolyte circulation path is controlled by opening / closing control of the regulating valve, and the electrolyte can be circulated individually to the plurality of floor heating panels 811a, 811b, 811c, the floor heating panel 811a, which requires heating, Only 811b and 811c can be heated.

[Sixth Embodiment]
The sixth embodiment shown in FIG. 6 uses a fan heater 82 as a heating system using a heat utilization system.

  The electrolyte circulation type battery system of the sixth embodiment includes a battery cell 11, an AC / DC converter 12, a positive electrode tank 2, a negative electrode tank 3, a positive electrode electrolyte circulation path 4, a negative electrode electrolyte circulation path 5, a circulation pump 13, 14, the configuration of the mixing channel, each regulating valve, the heat exchanger 812 and the hot water circulation channel 813 used for the fan heater 82 are the same as those in the first embodiment. Description of the same components is omitted.

  The fan heater 82 using the heat utilization system of the sixth embodiment includes an indoor unit 821 including an air heat exchanger 822 and a fan 823, a heat exchanger 812, an air heat exchanger 822 of the indoor unit 821, and a heat exchanger. A hot water circulation path 813 for circulating hot water to and from 812 is provided. The hot water circulation path 813 is provided with a pump 814 for circulating hot water.

  In the sixth embodiment, the temperature detection means 15 detects the temperature of the hot water flowing through the hot water circulation path 813, and the valve controller 16 controls the opening / closing of the regulating valve based on the temperature detection result.

  Even when the fan heater 82 is used as the heating system, heating can be performed by effectively using the heat generated by the electrolyte.

[Seventh Embodiment]
In the sixth embodiment, the fan heater is provided with a heat exchanger separately from the indoor unit, and the hot water is heated by the heat of the electrolytic solution in this heat exchanger. The seventh embodiment shown in FIG. 7 has a configuration in which a mixing flow path through which an electrolytic solution flows is incorporated in an air heat exchanger 822 provided in an indoor unit 821 of a fan heater 82.

  The heat utilization system of the seventh embodiment includes a battery cell 11, an AC / DC converter 12, a positive electrode tank 2, a negative electrode tank 3, a positive electrode electrolyte circuit 4, a negative electrolyte circuit 5, circulation pumps 13 and 14, and mixing The configuration of the flow path and each regulating valve is the same as that of the first embodiment. Description of the same components is omitted.

  A fan heater 82 that uses the heat utilization system of the seventh embodiment includes an air heat exchanger 822 and an indoor unit 821 that includes a fan 823. In the seventh embodiment, the temperature detection means 15 detects the temperature of the air that has come out of the air heat exchanger 822, and the control means 16 performs opening / closing control of the regulating valve based on the temperature detection result.

  In the seventh embodiment, since heat generated in the electrolytic solution is directly exchanged in the air heat exchanger 822 of the fan heater 82, heating can be performed using the heat of the electrolytic solution more effectively. In the seventh embodiment, the hot water circulation path used in the sixth embodiment and the heat exchanger for heating the hot water can be eliminated.

[Eighth Embodiment]
In the eighth embodiment shown in FIG. 8, a heat pump chiller 83 is used as a heating system using a heat utilization system.

  The heat utilization system of the eighth embodiment includes a battery cell 11, an AC / DC converter 12, a positive electrode tank 2, a negative electrode tank 3, a positive electrolyte circulation circuit 4, a negative electrolyte circulation circuit 5, circulation pumps 13 and 14, and mixing. The configuration of the flow path and each regulating valve is the same as that of the first embodiment. Description of the same components is omitted.

  A heat pump chiller 83 that uses the heat utilization system of the eighth embodiment includes an indoor unit 831, a heat exchanger 832 that serves as an outdoor unit, and a refrigerant circulation path 833 that circulates refrigerant between the indoor unit 831 and the heat exchanger 832. Have The refrigerant circulation path 833 is provided with a pump 814 for circulating the refrigerant.

  In the eighth embodiment, a mixing channel is incorporated in the heat exchanger 832 and the refrigerant is heated by the heat exchanger 832. In the eighth embodiment, the temperature of the refrigerant flowing through the refrigerant circulation path 833 is detected by the temperature detecting means 15, and the control means 16 controls the opening / closing of the regulating valve based on the temperature detection result.

  Even when the heat pump chiller 83 is used as the heating system, heating can be performed by effectively using the heat generated by the electrolyte.

  Furthermore, even in a state where the temperature is low such as early morning in midwinter and frost is likely to be generated in the heat exchanger, heating the refrigerant quickly with the heat of the electrolyte makes it possible to quickly start up the heating and perform high-power operation.

  When the temperature rises and the heat pump can perform high-efficiency heating operation only with outside air heat, the electrolytic solution mixing is stopped, the inexpensive electricity stored at night is discharged, and the heat pump chiller is fed. Thus, by using the energy stored in the electrolyte as a heat source for the heat pump chiller or for supplying power to the heat pump chiller, the energy stored in the electrolyte can be effectively used without waste.

  The heat utilization system of the present invention can utilize the energy of the electrolyte circulation type battery, which is used as load leveling or a measure against instantaneous voltage drop, as a heat source of the heating system.

1 is a schematic configuration diagram of a heating system according to a first embodiment of the present invention. It is a schematic block diagram of the heating system which concerns on 2nd Embodiment of this invention. It is a schematic block diagram of the heating system which concerns on 3rd Embodiment of this invention. It is a schematic block diagram of the heating system which concerns on 4th Embodiment of this invention. It is a schematic block diagram of the heating system which concerns on 5th Embodiment of this invention. It is a schematic block diagram of the heating system which concerns on 6th Embodiment of this invention. It is a schematic block diagram of the heating system which concerns on 7th Embodiment of this invention. It is a schematic block diagram of the heating system which concerns on 8th Embodiment of this invention. It is explanatory drawing of the principle of operation of an electrolyte circulation type battery.

Explanation of symbols

1 Electrolyte circulating battery
11 Battery cell 12 AC / DC converter 13 Positive side circulation pump
14 Negative side circulation pump 15 Temperature detection means
16 Valve controller (control means)
2 Positive electrode tank
3 Negative tank
4 Positive electrode electrolyte circuit
41 Upstream cathode piping
42 Downstream cathode piping
5 Negative electrode electrolyte circuit
51 Upstream negative piping
52 Downstream negative electrode piping
6 Communication pipe
6a Regulating valve for communication
71 Positive Electrolyte Mixing Pipe
71a Positive side merging piping 71b Positive side branch piping
72 Negative electrode electrolyte mixing piping
72a Negative side merging pipe part 72b Negative side branch pipe part
73 Upstream part of the positive side mixing pipe 74 Upstream part of the negative side mixing pipe
75 Mixing pipe junction
76 Downstream part of the positive side mixing pipe 77 Downstream part of the negative side mixing pipe
81 floor heater
811,811a, 811b, 811c Floor heating panel 812 Heat exchanger
813 Hot water circuit 814 Pump 815 Heating section
82 fan heater
821 Indoor unit 822 Air heat exchanger 823 Fan
83 Heat pump chiller
831 Indoor unit 832 Heat exchanger 833 Refrigerant circuit
91 First adjustment valve 92 Second adjustment valve
93,93a Third regulating valve 94,94a Fourth regulating valve
95,95a, 95b, 95c 5th regulating valve 96,96b, 96c 6th regulating valve
97,97b, 97c 7th regulating valve 98,98b, 98c 8th regulating valve
99,99b, 99c Nine adjustment valve 100,100b, 100c Tenth adjustment valve
101,101c 11th regulating valve 102,102c 12th regulating valve
103c 13th regulating valve
1A cell 2A positive electrode cell 2B negative electrode cell
2C Diaphragm 3A Positive electrode 3B Negative electrode
4A Positive tank 4B Negative tank
5A, 5B pump 6A, 6B conduit

Claims (8)

A battery cell to which a positive electrode electrolyte and a negative electrode electrolyte are supplied, a positive electrode tank in which the positive electrode electrolyte is stored, a negative electrode tank in which the negative electrode electrolyte is stored, and a positive electrode electrolyte that circulates and supplies the positive electrode electrolyte to the battery cells An electrolyte circulation battery including a circulation path, a negative electrode electrolyte circulation path that circulates and supplies the negative electrode electrolyte solution to the battery cell, and a pump provided in each electrolyte circulation path;
A mixing channel for mixing an appropriate amount of a positive electrode electrolyte and a negative electrode electrolyte flowing through each electrolyte circuit;
A heat utilization system characterized in that heat of an electrolyte generated in a mixing channel is used in a heating system. An adjustment valve for adjusting the mixing amount of the positive electrode electrolyte and the negative electrode electrolyte provided in the mixing channel;
Temperature detection means for detecting the temperature of the electrolyte solution heat generation point in the mixing channel;
The heat utilization system according to claim 1, further comprising: a control unit that controls a mixing amount of the electrolytic solution in the mixing flow path by an adjustment valve based on a detection result of the temperature detection unit.   The mixing channel separates the upstream part connected to the pump downstream side of each electrolyte circulation path, the merging part where the positive and negative electrolytes flowing through these upstream parts merge, and the electrolyte flowing through the merging part. The heat utilization system according to claim 1, further comprising a downstream portion that flows and returns to the downstream side from the upstream portion connection position of each electrolyte circulation path.   The merge section includes a branch flow path in which the merged electrolyte solutions are divided and flowed, and an adjustment valve that controls a flow rate of the electrolyte solution to each branch flow path. The described heat utilization system.   The upstream part of the positive electrode electrolyte and the upstream part of the negative electrode electrolyte are branched into a plurality of parts, and the flow paths after branching are merged to form a plurality of merged parts, and the electrolytes to the merged parts in the upstream part The heat utilization system according to claim 3, further comprising an adjustment valve that controls a flow rate of the heat.   The heat utilization system according to claim 1, wherein the heat generation part of the electrolyte solution in the mixing channel is disposed under the floor.   The heat utilization system according to claim 1, wherein a hot water pipe is disposed under the floor, and water flowing through the hot water pipe is heated by heat of the electrolytic solution flowing through the electrolytic solution heating portion of the mixing channel.   The heat utilization system according to claim 1, wherein the refrigerant flowing through the refrigerant pipe provided in the heat pump chiller is heated by the heat of the electrolytic solution flowing through the electrolytic solution heating portion of the mixing channel.

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