WO2012042868A1 - 電気分解装置及びこれを備えたヒートポンプ式給湯機 - Google Patents
電気分解装置及びこれを備えたヒートポンプ式給湯機 Download PDFInfo
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- WO2012042868A1 WO2012042868A1 PCT/JP2011/005465 JP2011005465W WO2012042868A1 WO 2012042868 A1 WO2012042868 A1 WO 2012042868A1 JP 2011005465 W JP2011005465 W JP 2011005465W WO 2012042868 A1 WO2012042868 A1 WO 2012042868A1
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- Prior art keywords
- water
- block
- electrode
- electrode pair
- electrolyzer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 195
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 34
- 238000011144 upstream manufacturing Methods 0.000 claims description 61
- 230000007423 decrease Effects 0.000 claims description 15
- 239000003792 electrolyte Substances 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 claims description 9
- 239000008236 heating water Substances 0.000 claims description 5
- 230000006870 function Effects 0.000 description 9
- 235000020679 tap water Nutrition 0.000 description 5
- 239000008399 tap water Substances 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 5
- 235000020681 well water Nutrition 0.000 description 5
- 239000002349 well water Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4602—Treatment of water, waste water, or sewage by electrochemical methods for prevention or elimination of deposits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/0092—Devices for preventing or removing corrosion, slime or scale
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0015—Guiding means in water channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
- F24H9/455—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means for water heaters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4611—Fluid flow
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/46125—Electrical variables
- C02F2201/46135—Voltage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/028—Tortuous
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
Definitions
- the present invention relates to an electrolyzer for removing scale components in water in a water heater such as a heat pump water heater, and a heat pump water heater provided with the same.
- a heat pump type water heater is composed of a refrigerant circuit in which a compressor, a water heat exchanger, an expansion valve and an air heat exchanger are connected in this order by a pipe, a tank in which water is stored, and the water in this tank is converted into a water heat exchanger. And a hot water storage circuit having a hot water discharge pipe for returning water heated by the water heat exchanger to the tank.
- the water stored in the tank usually uses tap water or well water as a water supply source.
- tap water and well water contain components such as calcium ions and magnesium ions that cause scales (hereinafter referred to as scale components). Therefore, scales such as calcium salt and magnesium salt are deposited in the water heater.
- groundwater such as well water has a higher concentration of the scale component than tap water, and has a water quality that tends to cause scale.
- scales are more likely to deposit than other parts. If the scale is deposited and deposited on the inner surface of the pipe in the water heat exchanger, there may be a problem that the heat transfer performance of the water heat exchanger is lowered or the flow path of the pipe is narrowed.
- Patent Document 1 proposes a cooling water circulation device including an electrolysis device in which one electrode pair is installed in an electrolytic cell. This Patent Document 1 describes that scale components can be removed from the cooling water by electrolysis, so that scale adhesion in the circulation path can be reduced.
- an object of the present invention is to provide an electrolysis apparatus capable of improving the removal efficiency of scale components, and a heat pump type water heater provided with the same. There is to do.
- the electrolyzer of the present invention is used in a water heater having a water heat exchanger (21) for heating water.
- the electrolyzer includes a container (47) having an inlet and an outlet of water, a first electrode pair (49) and a second electrode pair (49) disposed in the container (47), And a power source (51) for applying a voltage to the electrode pair (49).
- the electrolyzer is configured such that water that flows into the container (47) from the inlet flows from the upstream side to the downstream side through the container (47) and flows out from the outlet.
- the first electrode pair (49) is disposed upstream of the second electrode pair (49). In the electrolysis apparatus, so as to suppress a decrease in current density due to the electrolyte concentration in water in the second electrode pair (49) disposed downstream of the first electrode pair (49), The current density of the second electrode pair (49) is adjusted.
- FIG. 1 is sectional drawing which shows the electrolyzer concerning 1st Embodiment of this invention, and is a figure when the said electrolyzer is seen from the side.
- B is a plan view thereof.
- C is sectional drawing to which a part of (A) was expanded. It is sectional drawing which shows the electrolyzer concerning 2nd Embodiment of this invention. It is sectional drawing which shows the electrolyzer concerning 3rd Embodiment of this invention. It is sectional drawing which shows the electrolyzer concerning 4th Embodiment of this invention. It is sectional drawing which shows the electrolyzer concerning 5th Embodiment of this invention.
- a heat pump type hot water heater 11 heats low temperature water by exchanging heat with the heat pump unit 13 in which the refrigerant circulates and the refrigerant in the heat pump unit 13, and the tank 15 has a high temperature.
- a hot water storage unit 17 that stores the water, a water supply pipe 37, a hot water supply pipe 35, an electrolyzer 41, and a control unit 33.
- the water heater 11 of the present embodiment is a transient water heater that does not return the hot water supplied from the hot water supply pipe 35 to the tank 15.
- the heat pump unit 13 includes a compressor 19, a water heat exchanger 21, an electric expansion valve 23, an air heat exchanger 25, and a pipe connecting them.
- carbon dioxide is used as the refrigerant circulating in the heat pump unit 13.
- the refrigerant exchanges heat with water circulating in the hot water storage unit 17 in the water heat exchanger 21 to heat the water, and exchanges heat with the outside air in the air heat exchanger 25 to absorb heat from the outside air.
- the hot water storage unit 17 includes a tank 15 in which water is stored, a water inlet pipe 27 that sends water from the tank 15 to the water heat exchanger 21, and water that is heated by heat exchange with the water heat exchanger 21 in the tank 15. There is a return hot water piping 29.
- a pump 31 is provided in the incoming water pipe 27. The pump 31 sends water that has flowed into the incoming water pipe 27 from the lower part of the tank 15 to the water heat exchanger 21, and further to the upper part of the tank 15 through the hot water outlet pipe 29.
- the electrolyzer 41 is provided in the incoming water pipe 27 and is located between the pump 31 and the water heat exchanger 21. Details of the electrolyzer 41 will be described later.
- the hot water supply pipe 35 is connected to the upper part of the tank 15.
- the hot water supply pipe 35 is for taking out hot water stored in the tank 15 and supplying hot water to a bathtub or the like.
- the water supply pipe 37 is connected to the bottom of the tank 15.
- the water supply pipe 37 is for supplying low-temperature water into the tank 15 from a water supply source.
- a water supply source for supplying water to the tank 15 for example, tap water or ground water such as well water can be used.
- the control unit 33 includes a central processing unit (CPU), a memory in which data such as a program is stored, a memory for storing data at the time of program execution, various setting values, measured data, and the like. .
- the control unit 33 controls the heat pump unit 13 and the hot water storage unit 17 based on temperature data measured by a temperature sensor (not shown) provided in the tank 15, the water heat exchanger 21, piping, and the like.
- the control unit 33 drives the compressor 19 of the heat pump unit 13 to adjust the opening degree of the electric expansion valve 23 and drives the pump 31 of the hot water storage unit 17. .
- low-temperature water in the tank 15 is sent to the water heat exchanger 21 through the inlet pipe 27 from the water outlet provided at the bottom of the tank 15, and is heated in the water heat exchanger 21.
- the heated high-temperature water is returned into the tank 15 from a water inlet provided in the upper part of the tank 15 through the hot water supply pipe 29.
- hot water is stored in the tank 15 in order from the upper part.
- the heat pump type water heater 11 of the present embodiment is a transient type water heater.
- the water (hot water) supplied from the hot water supply pipe 35 is used by the user and does not return to the tank 15. Accordingly, the same amount of water supplied from the tank 15 through the hot water supply pipe 35 is supplied to the tank 15 from the water supply source through the water supply pipe 37. That is, the tank 15 is frequently replenished with water containing scale components from a water supply source such as tap water or well water, and the amount of replenishment is also large. Therefore, in the case of a transient heat pump type hot water heater, it is necessary to efficiently remove scale components as compared with the circulating type cooling water circulation device and the circulating type water heater.
- FIG. 2A is a cross-sectional view showing the electrolyzer 41 according to the first embodiment of the present invention used in the water heater 11.
- FIG. 2A is a view of the electrolyzer 41 as viewed from the side.
- FIG. 2B is a plan view of the electrolyzer 41.
- the electrolyzer 41 according to the first embodiment includes a container 47, a plurality of electrode pairs 49, and a power source 51.
- the container 47 has a substantially rectangular parallelepiped shape.
- the container 47 has a first wall portion 471 located on the upstream side of the water flow, a second wall portion 472 located on the downstream side, and a side wall portion 48 connecting these wall portions 471 and 472.
- the first wall portion 471 and the second wall portion 472 are opposed to the direction in which the side wall portion 48 extends (arrangement direction D of the plurality of electrode plates 53) via a plurality of electrode plates 53 described later.
- the side wall part 48 has a third wall part 473 and a fourth wall part 474 shown in FIG. 2 (A), and a fifth wall part 475 and a sixth wall part 476 shown in FIG. 2 (B).
- the arrangement when using the electrolyzer 41 can be, for example, the orientation shown in FIG. 2A so that the third wall portion 473 is located below and the fourth wall portion 474 is located above.
- the present invention is not limited to this.
- the electrolyzer 41 may be arranged and used such that the longitudinal direction is directed in the vertical direction, or may be used in other arrangements.
- the third wall portion 473 and the fourth wall portion 474 are opposed to each other in the height direction H (vertical direction) with the plurality of electrode plates 53 interposed therebetween.
- the fifth wall portion 475 and the sixth wall portion 476 are opposed to each other in the width direction W (horizontal direction perpendicular to the arrangement direction D) with the plurality of electrode plates 53 interposed therebetween.
- the 1st wall part 471 has the 1st distribution port 43 which functions as an entrance and exit of water.
- the 2nd wall part 472 has the 2nd circulation port 45 which functions as an entrance / exit of water.
- the first circulation port 43 functions as an inlet
- the second circulation port 45 functions as an outlet.
- a water inlet pipe 27 is connected to each of the first circulation port 43 and the second circulation port 45.
- the first circulation port 43 is provided in the first wall portion 471 at a position closer to the third wall portion 473 than the fourth wall portion 474 and closer to the fifth wall portion 475 than the sixth wall portion 476.
- the second flow port 45 is provided in the second wall portion 472 at a position closer to the fourth wall portion 474 than the third wall portion 473 and closer to the sixth wall portion 476 than the fifth wall portion 475.
- the first flow port 43 and the second flow port 45 are respectively provided in the vicinity of the diagonal in the rectangular parallelepiped container 47.
- the container 47 has an elongated shape.
- the distance between the outer surface of the first wall portion 471 and the outer surface of the second wall portion 472 is the distance between the outer surface of the third wall portion 473 and the outer surface of the fourth wall portion 474 and the outer surface of the fifth wall portion 475 and the sixth surface. It is larger than the distance from the outer surface of the wall portion 476.
- the plurality of electrode pairs 49 are disposed in the container 47.
- the plurality of electrode pairs 49 are arranged along the longitudinal direction of the container 47.
- Each electrode pair 49 includes a pair of electrode plates 53 (a first electrode plate 531 and a second electrode plate 532). Therefore, the plurality of electrode pairs 49 are constituted by a plurality of electrode plates 53.
- Each electrode plate 53 is substantially rectangular. Examples of the material of the electrode plate 53 include titanium, platinum, nickel, carbon, graphite, copper, and vitreous carbon.
- the plurality of electrode plates 53 are arranged at intervals in the thickness direction of the electrode plates 53.
- Each electrode plate 53 is arranged in a posture extending in a direction substantially perpendicular to the arrangement direction D.
- the arrangement direction D substantially coincides with the direction in which the side wall 48 extends (the longitudinal direction of the container 47).
- the distance between the electrode plates 53 of each electrode pair 49 is substantially the same.
- the plurality of electrode plates 53 include a plurality of first electrode plates 531 connected to the positive electrode of the power source 51 and a plurality of second electrode plates 532 connected to the negative electrode of the power source 51.
- the first electrode plate 531 functions as an anode
- the second electrode plate 532 functions as a cathode.
- the first electrode plates 531 and the second electrode plates 532 are alternately arranged along the arrangement direction D of the plurality of electrode plates 53.
- the plurality of electrode pairs 49 are divided into four blocks 50.
- the four blocks 50 are arranged at the most upstream block 50A, the block 50B arranged downstream of the block 50A, the block 50C arranged downstream of the block 50B, and the downstream of block 50C.
- Block 50D These blocks 50 are arranged along the longitudinal direction (arrangement direction D) of the container 47.
- the plurality of first electrode plates 531 in each block are connected in parallel to the corresponding power supply 51, and the plurality of second electrode plates 532 in each block are connected in parallel to the corresponding power supply 51. Yes.
- FIG. 2C is an enlarged cross-sectional view of one block 50 in FIG.
- the four blocks 50A to 50D have substantially the same configuration.
- each block 50 has three electrode pairs 49 constituted by four electrode plates 53.
- the three electrode pairs 49 include an electrode pair 49a, an electrode pair 49b, and an electrode pair 49c, and are connected to the power source 51 in parallel.
- the electrode pair 49a includes a first electrode plate 531 located on the most upstream side and a second electrode plate 532 that is second from the upstream side.
- the electrode pair 49b includes a second electrode plate 532 that is second from the upstream side and a first electrode plate 531 that is third from the upstream side.
- the electrode pair 49c includes a third first electrode plate 531 from the upstream side and a fourth second electrode plate 532 from the upstream side.
- the two first electrode plates 531 in each block 50 are extended from the base end portion located on the third wall portion 473 toward the fourth wall portion 474, respectively.
- the base end portion of each first electrode plate 531 is connected to a connection plate 54 (or connection wiring 54) extending in a direction substantially parallel to the third wall portion 473.
- the connecting plate 54 is connected to the positive electrode of the power source 51.
- the connecting plate 54 is embedded in the third wall portion 473.
- a gap G ⁇ b> 1 through which water can flow is provided between the front end portion (end portion on the fourth wall portion 474 side) of each first electrode plate 531 and the inner surface of the fourth wall portion 474.
- the two second electrode plates 532 in each block 50 are extended from the base end portion located on the fourth wall portion 474 toward the third wall portion 473, respectively.
- the base end portion of each second electrode plate 532 is connected to a connection plate 56 (or connection wiring 56) extending in a direction substantially parallel to the fourth wall portion 474.
- the connecting plate 56 is connected to the negative electrode of the power source 51.
- the connecting plate 56 is embedded in the fourth wall portion 474.
- a gap G ⁇ b> 2 through which water can flow is provided between the tip of each second electrode plate 532 (the end on the third wall 473 side) and the inner surface of the third wall 473. Further, the gap between the electrode plates 53 in each electrode pair 49 functions as a flow path (water flow path) F through which water flows.
- the electrolysis apparatus 41 of the first embodiment includes four power supplies 51 (power supplies 511 to 514) connected to each block 50.
- the voltage E2 applied to each electrode pair 49 (second electrode pair) in the block B is larger than the voltage E1 applied to each electrode pair 49 (first electrode pair) in the block A.
- the voltage E3 applied to each electrode pair 49 (third electrode pair) in the block C is higher than the voltage E2 applied to each electrode pair 49 in the block B.
- the voltage E4 applied to each electrode pair 49 (fourth electrode pair) in the block D is larger than the voltage E3 applied to each electrode pair 49 in the block C (E1 ⁇ E2 ⁇ E3 ⁇ E4).
- the water flowing into the container 47 from the first circulation port 43 flows out of the container 47 from the second circulation port 45 along the following path. That is, the water flowing into the container 47 is electrolyzed when passing between the electrode plates (water flow path F) of each electrode pair 49 in the block A.
- the water that has passed through block A flows further downstream in the order of block B, block C, and block D, and is similarly electrolyzed in block B, block C, and block D.
- the water that has passed through the block D flows out of the container 47 through the second circulation port 45.
- the scale is formed on the second electrode plate 532 that is the cathode of each electrode pair 49 by electrolysis. Precipitate.
- the scale attached to the second electrode plate 532 is removed from the electrolyzer 41, for example, by periodically cleaning the second electrode plate 532. Further, for example, by periodically reversing the polarity of the electrode plate 53, the scale attached to the cathode can be removed from the cathode.
- FIG. 3 is a sectional view showing an electrolyzer 41 according to the second embodiment of the present invention.
- the electrolysis apparatus 41 of the second embodiment is different from the first embodiment in that the number of electrode pairs 49 constituting the block C and the block D is smaller than the number of electrode pairs 49 constituting the block A and the block B. Is different.
- the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and detailed description thereof is omitted.
- the block 50 ⁇ / b> A and the block 50 ⁇ / b> B each have five electrode pairs 49 constituted by six electrode plates 53. These five electrode pairs 49 are connected to the power source 51 in parallel.
- the block 50C and the block 50D arranged on the downstream side of the block 50A and the block 50B have three electrode pairs 49 formed by four electrode plates 53. These three electrode pairs 49 are connected to the power source 51 in parallel. The distance between the electrode plates 53 of each electrode pair 49 is substantially the same.
- the electrolyzer 41 of the second embodiment includes four power supplies 51 (power supplies 511 to 514) connected to each block 50, as in the first embodiment.
- the voltages of the four power supplies 51 can be set, for example, similarly to the first embodiment (E1 ⁇ E2 ⁇ E3 ⁇ E4).
- the voltage applied to the downstream block 50 is made larger than the voltage applied to the upstream block 50, thereby suppressing a decrease in the current density of the downstream block 50. Furthermore, in the second embodiment, the number of electrode pairs 49 in the blocks 50C and 50D located on the downstream side is reduced compared to the blocks 50A and 50B located on the upstream side. Compared to the case where the number of electrode pairs 49 in the blocks 50C and 50D is the same as the number of electrode pairs 49 in the blocks 50A and 50B (five), in the second embodiment, in the blocks 50C and 50D, one The current density per electrode pair 49 can be increased.
- FIG. 4 is a sectional view showing an electrolyzer 41 according to the third embodiment of the present invention.
- the container 47 includes a first accommodating portion 47A that accommodates the block 50A, a second accommodating portion 47B that accommodates the block 50B, a third accommodating portion 47C that accommodates the block 50C, and an accommodating portion 47A.
- a connecting pipe 28B that connects the accommodating part 47B and the accommodating part 47C.
- the first housing portion 47A, the second housing portion 47B, and the third housing portion 47C are connected in series in this order by the connecting tube 28A and the connecting tube 28B.
- the first accommodating portion 47A has a substantially rectangular parallelepiped shape.
- 47 A of 1st accommodating parts have the 1st wall part 471A located in the upstream of the flow of water, the 2nd wall part 472A located in the downstream, and the side wall part 48 which connects these wall parts 471A and 472B. ing.
- the first wall portion 471A and the second wall portion 472A face each other in the direction in which the side wall portion 48 extends (arrangement direction D) with the plurality of electrode plates 53 interposed therebetween. Since the 2nd accommodating part 47B and the 3rd accommodating part 47C also have the structure similar to the 1st accommodating part 47A, the same code
- the first wall portion 471A of the first housing portion 47A is provided with a first flow port 43 that functions as an inlet for water near the lower end thereof.
- An upstream water inlet pipe 27 is connected to the first circulation port 43.
- the second wall portion 472A of the third housing portion 47C is provided with a second circulation port 45 that functions as a water outlet near the upper end thereof.
- a downstream inlet pipe 27 is connected to the second circulation port 45.
- the upstream end of the connecting pipe 28A is connected to the vicinity of the lower end of the second wall 472A of the first housing 47A, and the downstream end of the connecting pipe 28A is the first wall of the second housing 47B. It is connected near the upper end of 471A.
- the upstream end portion of the connecting pipe 28B is connected to the vicinity of the lower end of the first wall portion 471A of the second accommodating portion 47B, and the downstream end portion of the connecting tube 28B is the first wall portion of the third accommodating portion 47C. It is connected near the upper end of 471A.
- Each block 50 has seven electrode pairs 49 constituted by eight electrode plates 53. These electrode pairs 49 are connected to the power source 51 in parallel. Further, the electrolyzer 41 of the third embodiment includes three power sources 51 (power sources 511 to 513) connected to each block 50 (E1 ⁇ E2 ⁇ E3). The distance between the electrode plates 53 of each electrode pair 49 is substantially the same.
- FIG. 5 is a sectional view showing an electrolyzer 41 according to the fourth embodiment of the present invention.
- the electrolyzer 41 of the fourth embodiment is different from the electrolyzer 41 of the second embodiment of FIG. 3 in that four blocks 50A to 50D are connected in series to a power source 51. Since other configurations are substantially the same as those of the second embodiment, only the main configuration will be described below.
- the block 50 ⁇ / b> A and the block 50 ⁇ / b> B have five electrode pairs 49 constituted by six electrode plates 53. These five electrode pairs 49 are connected to the power source 51 in parallel.
- the block 50C and the block 50D arranged on the downstream side of the block 50A and the block 50B have three electrode pairs 49 each including four electrode plates 53. These three electrode pairs 49 are connected to the power source 51 in parallel.
- the number of the electrode pairs 49 of the block 50C and the block 50D is smaller than the number of the electrode pairs 49 of the block 50A and the block 50B arranged on the upstream side of these.
- the distance between the electrode plates 53 of each electrode pair 49 is substantially the same.
- the positive electrode of the power source 51 is connected to the first electrode plate 531 of the block 50A
- the negative electrode of the power source 51 is connected to the second electrode plate 532 of the block 50D.
- the second electrode plate 532 of the block 50A and the first electrode plate 531 of the block 50B are connected by a wiring 52A.
- the second electrode plate 532 of the block 50B and the first electrode plate 531 of the block 50C are connected by a wiring 52B.
- the second electrode plate 532 of the block 50C and the first electrode plate 531 of the block 50D are connected by a wiring 52C.
- FIG. 6 is a sectional view showing an electrolyzer 41 according to the fifth embodiment of the present invention.
- three blocks 50A, 50B, and 50C are connected in series to the power source 51, and the container 47 includes a first accommodating portion 47A, a second accommodating portion 47B, and a second accommodating portion that accommodate each block 50. 3 containing 47C and connecting pipe 28A, 28B.
- symbol same as FIG. 4 is attached
- the block 50 ⁇ / b> A has seven electrode pairs 49 constituted by eight electrode plates 53. These seven electrode pairs 49 are connected to the power source 51 in parallel.
- the block 50 ⁇ / b> B has five electrode pairs 49 constituted by six electrode plates 53. These five electrode pairs 49 are connected to the power source 51 in parallel.
- the block 50 ⁇ / b> C has three electrode pairs 49 constituted by four electrode plates 53. These three electrode pairs 49 are connected to the power source 51 in parallel.
- the number of electrode pairs 49 in the block 50C located on the most downstream side is smaller than the number of electrode pairs 49 in the block 50B located on the upstream side, and the number of electrode pairs 49 in the block 50B is the most upstream. Is less than the number of electrode pairs 49 of the block 50A located in the block 50A. The distance between the electrode plates 53 of each electrode pair 49 is substantially the same.
- the positive electrode of the power source 51 is connected to the first electrode plate 531 of the block 50A
- the negative electrode of the power source 51 is connected to the second electrode plate 532 of the block 50C.
- the second electrode plate 532 of the block 50A and the first electrode plate 531 of the block 50B are connected by a wiring 52A.
- the second electrode plate 532 of the block 50B and the first electrode plate 531 of the block 50C are connected by a wiring 52B.
- FIG. 7 is a sectional view showing an electrolyzer 41 according to the sixth embodiment of the present invention.
- the distance between the adjacent electrode plates 53 is as small as the electrode pair 49 on the downstream side.
- the plurality of first electrode plates 531 are extended from the base end portion located in the vicinity of the third wall portion 473 toward the fourth wall portion 474, respectively.
- the base end portion of each first electrode plate 531 is connected to a connection plate 54 (or connection wiring 54) extending in a direction substantially parallel to the third wall portion 473.
- the connecting plate 54 is connected to the positive electrode of the power source 51.
- the plurality of second electrode plates 532 extend from the base end portion located in the vicinity of the fourth wall portion 474 toward the third wall portion 473.
- the base end portion of each second electrode plate 532 is connected to a connection plate 56 (or connection wiring 56) extending in a direction substantially parallel to the fourth wall portion 474.
- the connecting plate 56 is connected to the negative electrode of the power source 51.
- the plurality of electrode plates 53 are arranged at intervals in the thickness direction of the electrode plates 53.
- the first electrode plates 531 and the second electrode plates 532 are alternately arranged along the arrangement direction D.
- Each electrode plate 53 is arranged in a posture extending in a direction substantially perpendicular to the arrangement direction D.
- the arrangement direction D substantially coincides with the direction in which the side wall 48 extends (the longitudinal direction of the container 47).
- the distance between the electrode plates of the plurality of electrode pairs 49 gradually decreases from the most upstream electrode pair 49 to the most downstream electrode pair 49.
- the electrolyte concentration in water gradually decreases from the region close to the first flow port 43 toward the region close to the second flow port 45 in the container 47. Therefore, in the sixth embodiment, the current density between the electrode plates 53 of each electrode pair 49 can be finely adjusted by gradually decreasing the distance between the electrodes as the electrolyte concentration decreases.
- FIG. 8 is a sectional view showing an electrolyzer 41 according to the seventh embodiment of the present invention.
- the electrolyzer 41 of the seventh embodiment is shown in FIG. 4 in that three blocks 50A, 50B, and 50C are connected in parallel to the power source 51 and that the distance between the electrodes is smaller in the downstream block 50. This is different from the electrolysis apparatus 41 of the third embodiment. Since the other configuration is substantially the same as that of the third embodiment, only the main configuration will be described below.
- each block 50 has seven electrode pairs 49 constituted by eight electrode plates 53. These seven electrode pairs 49 are connected to the power source 51 in parallel. Further, the positive electrode of the power source 51 is connected to the first electrode plate 531 of each block 50, and the negative electrode of the power source 51 is connected to the second electrode plate 532 of each block 50.
- the distance between the electrodes in each electrode pair 49 of the block 50C located on the most downstream side is smaller than the distance between the electrodes in each electrode pair 49 of the block 50B located on the upstream side of the block 50C. Further, the distance between the electrodes in each electrode pair 49 of the block 50B is smaller than the distance between the electrodes in each electrode pair 49 of the block 50A located on the upstream side of the block 50B.
- the seven electrode pairs 49 in the block 50A have substantially the same distance between the electrodes.
- the seven electrode pairs 49 in the block 50B have substantially the same distance between the electrodes.
- the seven electrode pairs 49 of the block 50C have substantially the same distance between the electrodes.
- FIG. 9 is a cross-sectional view showing an electrolyzer 41 according to an eighth embodiment of the present invention.
- the electrolyzer 41 of the eighth embodiment differs from the electrolyzer 41 of the seventh embodiment in that the number of electrode pairs 49 is larger in the downstream block 50. Since other configurations are substantially the same as those in the seventh embodiment, only the main configuration will be described below.
- the block 50A has seven electrode pairs 49 formed by eight electrode plates 53. These seven electrode pairs 49 are connected to the power source 51 in parallel.
- the block 50 ⁇ / b> B has nine electrode pairs 49 constituted by ten electrode plates 53. These nine electrode pairs 49 are connected to the power source 51 in parallel.
- the block 50 ⁇ / b> C has eleven electrode pairs 49 constituted by twelve electrode plates 53. These eleven electrode pairs 49 are connected to the power source 51 in parallel.
- the current density per one electrode pair 49 decreases.
- the decrease in current density due to the increase in the number of electrode pairs 49 is compensated by reducing the distance between the electrodes of the electrode pairs 49 in the downstream block 50.
- the contact area between the electrode plate 53 and water is increased by increasing the number of the electrode pairs 49 in the downstream block 50 having a smaller distance between the electrodes.
- the space in each container 47 is effectively used.
- the second electrode pair 49 is configured to suppress the decrease in current density in the second electrode pair 49 arranged on the downstream side where the electrolyte concentration is lower than that on the upstream side.
- the current density is adjusted. Accordingly, the scale component can be effectively removed also in the second electrode pair 49 disposed on the downstream side where the electrolyte concentration is low. Therefore, the removal efficiency of the scale component in the electrolyzer can be improved.
- the current density of the second electrode pair 49 is adjusted as described above to improve the removal efficiency of the scale component, not only the first electrode pair 49 but also the second electrode pair 49 can efficiently apply the scale component. Since it can be removed, the total power consumption can be reduced.
- the voltage applied to the second electrode pair 49 is made larger than the voltage applied to the first electrode pair 49, whereby the current of the second electrode pair 49 is increased.
- the density is adjusted. Thereby, it is possible to suppress a decrease in current density in the second electrode pair 49 disposed on the downstream side where the concentration of the electrolyte in water is lower than that on the upstream side.
- the distance between the electrodes 53 constituting the second electrode pair 49 is made smaller than the distance between the electrodes 53 constituting the first electrode pair 49, thereby The current density of the electrode pair 49 is adjusted.
- the distance between the electrodes 53 of the electrode pair 49 is related to the electrical resistance, and the current density can be increased by reducing the distance between the electrodes 53. Therefore, in this configuration, by simply adjusting the distance between the electrodes 53, it is possible to suppress a decrease in current density in the second electrode pair 49 disposed on the downstream side where the electrolyte concentration in water is lower than that on the upstream side. Therefore, the structure of the electrolyzer 41 can be simplified and the electrolyzer 41 can be downsized.
- the container 47 has an upstream block 50 in which a plurality of first electrode pairs 49 are connected in parallel and a plurality of second electrode pairs 49 in parallel. And a downstream block 50 that is connected and disposed downstream of the upstream block 50. In this configuration, the current density can be adjusted for each block 50.
- the number of electrode pairs 49 constituting the downstream block 50 is smaller than the number of electrode pairs 49 constituting the upstream block 50. Therefore, compared with the case where the number of the electrode pairs 49 of the upstream block 50 and the downstream block 50 is the same, the current density per one electrode pair 49 in the downstream block 50 becomes large.
- the number of electrode pairs 49 constituting the downstream block 50 is smaller than the number of electrode pairs 49 constituting the upstream block 50, and the upstream block 50 and The downstream blocks 50 are connected to each other in series.
- the current density per electrode pair 49 in the downstream block 50 is larger than when the number of electrode pairs 49 in the upstream block 50 and the downstream block 50 is the same.
- the upstream block 50 and the downstream block 50 are connected in series, it is not necessary to prepare a plurality of power supplies in order to change the applied voltage for each block, for example. Therefore, the structure of the electrolyzer 41 can be simplified and the electrolyzer 41 can be miniaturized.
- the container 47 includes a first storage portion 47A that stores the upstream block 50 and a second storage portion 47B that stores the downstream block 50.
- each electrode pair 49 is constituted by a pair of plate-like electrodes 53, and the plurality of electrode pairs 49 are arranged in the thickness direction of the electrodes 53.
- the contact area between the electrode 53 and water can be increased while suppressing the volume occupied by the plurality of electrode pairs 49.
- the removal efficiency of scale components can be improved.
- the electrolyzer 41 is provided in the feed-side flow path 27. Since the flow rate of water is low in the feed-side flow path 27 and its fluctuation is small, the water passing through the electrolyzer 41 is also almost constant at a low flow rate. Thereby, the electrolysis apparatus 41 can obtain a stable and effective removal effect of scale components. In addition, since the electrolysis is performed during the operation of the heat pump, it is possible to use nighttime power and to keep the electricity cost low.
- the electrolysis apparatus of the present invention is used for a water heater having a water heat exchanger for heating water.
- the electrolysis apparatus includes a container having an inlet and an outlet of water, a first electrode pair and a second electrode pair disposed in the container, and a power source that applies a voltage to each electrode pair. ing.
- the electrolyzer is configured such that water flowing into the container from the inlet flows from the upstream side to the downstream side through the container and flows out from the outlet.
- the first electrode pair is disposed on the upstream side of the second electrode pair.
- the second electrode pair is configured so as to suppress a decrease in current density caused by the electrolyte concentration in water in the second electrode pair disposed downstream of the first electrode pair. The current density is adjusted.
- the scale component contained in the water is gradually removed, so that the downstream region is more concentrated than the upstream region.
- the concentration is low. Therefore, in this configuration, the current density of the second electrode pair is adjusted so as to suppress a decrease in current density in the second electrode pair disposed on the downstream side where the electrolyte concentration in water is lower than that on the upstream side. ing.
- the removal efficiency of the scale component in the electrolyzer can be improved.
- the scale component can be efficiently removed not only in the first electrode pair but also in the second electrode pair. It is also possible to reduce the total power consumption.
- the current density of the second electrode pair is adjusted by making the voltage applied to the second electrode pair larger than the voltage applied to the first electrode pair. can do. Thereby, it is possible to suppress a decrease in current density in the second electrode pair arranged on the downstream side where the electrolyte concentration in water is lower than that on the upstream side.
- the distance between the electrodes constituting the second electrode pair is made smaller than the distance between the electrodes constituting the first electrode pair, whereby the second electrode The current density of the pair may be adjusted.
- the distance between the electrodes of the electrode pair is related to the electrical resistance, and the current density between the electrodes can be increased by reducing the distance between the electrodes. Therefore, in this configuration, it is possible to suppress a decrease in current density in the second electrode pair disposed on the downstream side where the electrolyte concentration in water is lower than that on the upstream side, by simply adjusting the distance between the electrodes. Therefore, the structure of the electrolyzer can be simplified and the electrolyzer can be miniaturized.
- the current density can be adjusted for each block.
- the number of electrode pairs constituting the downstream block may be smaller than the number of electrode pairs constituting the upstream block. Therefore, compared with the case where the number of electrode pairs of an upstream block and a downstream block is the same, the current density per one electrode pair in the said downstream block becomes large.
- the upstream block and the downstream block are connected in series. Is preferred. In this configuration, the current density per electrode pair in the downstream block is larger than in the case where the number of electrode pairs in the upstream block and the downstream block is the same.
- the upstream block and the downstream block are connected in series, it is not necessary to prepare a plurality of power supplies to change the applied voltage for each block, for example. For this reason, the structure of the electrolyzer can be simplified and the electrolyzer can be miniaturized.
- the container may include a first housing portion that houses the upstream block and a second housing portion that houses the downstream block.
- each electrode pair is preferably composed of a pair of plate-like electrodes, and the plurality of electrode pairs are preferably arranged in the thickness direction of the electrodes.
- the contact area between the electrodes and water can be increased while suppressing the volume occupied by the plurality of electrode pairs.
- the removal efficiency of scale components can be improved.
- the heat pump water heater of the present invention has a water heat exchanger for heating water, a heat pump unit in which a refrigerant circulates through a refrigerant pipe, a tank in which water is stored, and the water in the tank is subjected to the water heat exchange.
- a hot water storage unit having a feed side flow path for sending to a tank, a return side flow path for returning water heated by the water heat exchanger to the tank, a water supply pipe for supplying water to the tank from a water supply source, and the tank A hot water supply pipe for supplying hot water stored in the water, and the electrolyzer for removing scale components contained in the water.
- the electrolyzer since the electrolyzer is provided, the scale component in the water can be efficiently removed in the heat pump type hot water heater.
- the electrolyzer is preferably provided in the feed side flow path. Since the flow rate of water is low and its fluctuation is small in the feed-side flow path, the water passing through the electrolyzer is almost constant at a low flow rate. Thereby, the removal effect of the scale component which is stable and effective in the electrolysis apparatus can be obtained. In addition, since the electrolysis is performed during the operation of the heat pump, it is possible to use nighttime power and to keep the electricity cost low.
- the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the spirit of the present invention.
- the electrolyzer 41 may be provided in the incoming water pipe 27 upstream of the pump 31, or may be provided in the water supply pipe 37 that supplies water from the water supply source to the tank 15.
- each electrode plate may have a mesh shape in which a plurality of small through holes are formed, or may have a rod shape.
- the electrode plate is rod-shaped, among the dimensions in two directions perpendicular to the cross section perpendicular to the longitudinal direction of the electrode plate, the shorter one is the thickness, and the longer one is the width.
- the container 47 has a substantially rectangular parallelepiped shape has been described as an example, but the present invention is not limited to this.
- the container 47 may have a prismatic shape other than a rectangular parallelepiped or a cylindrical shape.
- the first flow port is provided in the first wall and the second flow port is provided in the second wall.
- the first flow port 43 may be provided in the vicinity of the first wall portion 471, and the second flow port 45 may be provided in the vicinity of the second wall portion 472.
- the first circulation port 43 may be provided in the third wall portion 473 in the vicinity of the first wall portion 471, and the second circulation port 45 is in the vicinity of the second wall portion 472.
- the fourth wall 474 may be provided.
- the downstream block 50 disposed downstream of the side block 50 has been described as an example, the present invention is not limited to this.
- the plurality of electrode pairs 49 may not be divided into a plurality of blocks as in the sixth embodiment shown in FIG. 7, for example.
- a transient hot water heater has been described as an example.
- the present invention is not limited to this.
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Abstract
Description
図1に示すように、一実施形態にかかるヒートポンプ式給湯機11は、冷媒が循環するヒートポンプユニット13と、このヒートポンプユニット13の冷媒と熱交換して低温の水を沸き上げ、タンク15に高温の水を貯留する貯湯ユニット17と、給水配管37と、給湯配管35と、電気分解装置41と、制御部33とを備えている。本実施形態の給湯機11は、給湯配管35から給湯された水をタンク15に戻さない一過式の給湯機である。
(第1実施形態)
図2(A)は、給湯機11に用いられる本発明の第1実施形態にかかる電気分解装置41を示す断面図である。図2(A)は、電気分解装置41を側方から見たときの図である。図2(B)は、この電気分解装置41の平面図である。図2(A),(B)に示すように、第1実施形態にかかる電気分解装置41は、容器47と、複数の電極対49と、電源51とを備えている。
図3は、本発明の第2実施形態にかかる電気分解装置41を示す断面図である。この第2実施形態の電気分解装置41は、ブロックC及びブロックDを構成する電極対49の数がブロックA及びブロックBを構成する電極対49の数よりも少ない点が、第1実施形態とは異なっている。この第2実施形態では、第1実施形態と同様の構成については、第1実施形態と同じ符号を付し、その詳細な説明を省略する。
図4は、本発明の第3実施形態にかかる電気分解装置41を示す断面図である。この第3実施形態では、容器47は、ブロック50Aを収容する第1収容部47Aと、ブロック50Bを収容する第2収容部47Bと、ブロック50Cを収容する第3収容部47Cと、収容部47Aと収容部47Bをつなぐ連結管28Aと、収容部47Bと収容部47Cをつなぐ連結管28Bとを含む。連結管28A及び連結管28Bにより、第1収容部47A、第2収容部47B及び第3収容部47Cは、この順に直列に連結されている。
図5は、本発明の第4実施形態にかかる電気分解装置41を示す断面図である。この第4実施形態の電気分解装置41は、4個のブロック50A~50Dが電源51に直列に接続されている点で、図3の第2実施形態の電気分解装置41と異なっている。その他の構成については、第2実施形態とほぼ同様であるので、主な構成のみ以下に説明する。
図6は、本発明の第5実施形態にかかる電気分解装置41を示す断面図である。この第5実施形態では、3個のブロック50A,50B,50Cが電源51に直列に接続されており、容器47は、各ブロック50を収容する第1収容部47A、第2収容部47B及び第3収容部47Cと、連結管28A,28Bとを含む。容器47の構成については、第3実施形態とほぼ同様であるので、図4と同じ符号を付して説明を省略する。
図7は、本発明の第6実施形態にかかる電気分解装置41を示す断面図である。この第6実施形態では、隣り合う電極板53同士の距離が下流側の電極対49ほど小さい。
図8は、本発明の第7実施形態にかかる電気分解装置41を示す断面図である。この第7実施形態の電気分解装置41は、3個のブロック50A,50B,50Cが電源51に並列に接続されている点、及び下流側のブロック50ほど電極間の距離が小さい点で図4の第3実施形態の電気分解装置41と異なっている。その他の構成については、第3実施形態とほぼ同様であるので、主な構成のみ以下に説明する。
図9は、本発明の第8実施形態にかかる電気分解装置41を示す断面図である。この第8実施形態の電気分解装置41は、下流側のブロック50ほど電極対49の数が多い点で、第7実施形態の電気分解装置41と異なっている。その他の構成については、第7実施形態とほぼ同様であるので、主な構成のみ以下に説明する。
13 ヒートポンプユニット
15 タンク
17 貯湯ユニット
21 水熱交換器
27 入水配管(送り側流路の一例)
29 出湯配管(戻し側流路の一例)
31 ポンプ
35 給湯配管
37 給水配管
41 電気分解装置
43 第1流通口
45 第2流通口
47 容器
49 電極対
50 ブロック
51 電源
53 電極板
531 第1電極板
532 第2電極板
D 複数の電極板の配列方向
Claims (10)
- 水を加熱するための水熱交換器(21)を有する給湯機に用いられる電気分解装置であって、
水の入口及び出口を有する容器(47)と、
前記容器(47)内に配設された第1の電極対(49)及び第2の電極対(49)と、
各電極対(49)に電圧を印加する電源(51)と、を備え、
前記入口から前記容器(47)内に流入した水が前記容器(47)内を上流側から下流側に向かって流れて前記出口から流出するように構成されており、
前記第1の電極対(49)は、前記第2の電極対(49)よりも上流側に配置されており、
前記第1の電極対(49)よりも下流側に配置された前記第2の電極対(49)において水中の電解質濃度に起因する電流密度の低下を抑制するように、前記第2の電極対(49)の前記電流密度が調整される、電気分解装置。 - 前記第2の電極対(49)に印加される電圧は、前記第1の電極対(49)に印加される電圧よりも大きい、請求項1に記載の電気分解装置。
- 前記第2の電極対(49)を構成する電極(53)間の距離は、前記第1の電極対(49)を構成する電極(53)間の距離よりも小さい、請求項1又は2に記載の電気分解装置。
- 前記容器(47)内には、
複数の前記第1の電極対(49)が並列に接続された上流側ブロック(50)と、
複数の前記第2の電極対(49)が並列に接続され、前記上流側ブロック(50)よりも前記下流側に配置された下流側ブロック(50)と、が設けられている、請求項1~3のいずれか1項に記載の電気分解装置。 - 前記下流側ブロック(50)を構成する電極対(49)の数は、前記上流側ブロック(50)を構成する電極対(49)の数よりも少ない、請求項4に記載の電気分解装置。
- 前記上流側ブロック(50)と前記下流側ブロック(50)は、直列に接続されている、請求項5に記載の電気分解装置。
- 前記容器(47)は、前記上流側ブロック(50)を収容する第1収容部(47)と前記下流側ブロック(50)を収容する第2収容部(47)とを含む、請求項4~6のいずれか1項に記載の電気分解装置。
- 各電極対(49)は、一対の板状の電極(53)により構成されており、
前記複数の電極対(49)は、前記電極(53)の厚み方向に配列されている、請求項1~7のいずれか1項に記載の電気分解装置。 - ヒートポンプ式給湯機であって、
水を加熱するための水熱交換器(21)を有し、冷媒配管を通じて冷媒が循環するヒートポンプユニット(13)と、
水が貯留されるタンク(15)、前記タンク(15)の水を前記水熱交換器(21)に送る送り側流路(27)、及び前記水熱交換器(21)により加熱された水を前記タンク(15)に戻す戻し側流路(29)を有する貯湯ユニット(17)と、
給水源から前記タンク(15)に水を給水する給水配管(37)、及び前記タンク(15)に貯留された高温の水を給湯する給湯配管(35)と、
前記水に含まれるスケール成分を除去するための請求項1~8のいずれか1項に記載の電気分解装置(41)と、を備えているヒートポンプ式給湯機。 - 前記電気分解装置(41)は、前記送り側流路(27)に設けられている、請求項9に記載のヒートポンプ式給湯機。
Priority Applications (4)
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US13/824,133 US9140465B2 (en) | 2010-09-30 | 2011-09-28 | Electrolysis device and heat-pump-type water heater provided with same |
EP11828434.8A EP2623463A4 (en) | 2010-09-30 | 2011-09-28 | Electrolysis device and heat-pump-type water heater provided with same |
AU2011310303A AU2011310303B2 (en) | 2010-09-30 | 2011-09-28 | Electrolysis device and heat-pump-type water heater provided with same |
CN2011800457986A CN103118989A (zh) | 2010-09-30 | 2011-09-28 | 电解装置及具备该电解装置的热泵式供热水器 |
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JP2010220945A JP4968376B2 (ja) | 2010-09-30 | 2010-09-30 | 電気分解装置及びこれを備えたヒートポンプ式給湯機 |
JP2010-220945 | 2010-09-30 |
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US (1) | US9140465B2 (ja) |
EP (1) | EP2623463A4 (ja) |
JP (1) | JP4968376B2 (ja) |
CN (1) | CN103118989A (ja) |
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WO (1) | WO2012042868A1 (ja) |
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JP6247845B2 (ja) * | 2013-06-28 | 2017-12-13 | 豊商事有限会社 | エンジンシステム |
DE102016002942A1 (de) * | 2016-03-11 | 2017-09-14 | Stiebel Eltron Gmbh & Co. Kg | Heizblock für einen elektrischen Heizkörper und elektrischer Durchlauferhitzer |
CN116854203A (zh) | 2017-10-05 | 2023-10-10 | 伊莱克崔西有限公司 | 船舶上船载使用的电解型杀生剂生成*** |
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JPH10174975A (ja) * | 1996-12-20 | 1998-06-30 | Konica Corp | 固定床型多孔質電極電解槽とそれを用いた水処理方法及び水処理装置 |
JP2005046809A (ja) * | 2003-07-31 | 2005-02-24 | Kurita Water Ind Ltd | スケール防止装置 |
WO2006027825A1 (ja) | 2004-09-06 | 2006-03-16 | Innovative Design & Technology Inc. | 冷却水循環装置、および冷却水循環装置のスケール除去方法 |
JP2010091122A (ja) * | 2008-10-03 | 2010-04-22 | Panasonic Corp | 給湯機 |
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US3652433A (en) * | 1968-10-09 | 1972-03-28 | Nalco Chemical Co | Electrolytic softening of water |
DE2531850A1 (de) * | 1975-07-16 | 1977-01-20 | Einhell Hans Gmbh | Elektrolysezelle fuer die behandlung von wasser |
US6793801B2 (en) * | 2002-01-03 | 2004-09-21 | Herbert W. Holland | Method and apparatus for removing contaminants from conduits and fluid columns |
JP5224041B2 (ja) * | 2007-06-27 | 2013-07-03 | ダイキン工業株式会社 | ヒートポンプ式給湯装置 |
KR101059564B1 (ko) * | 2008-12-02 | 2011-08-26 | 삼성전자주식회사 | 연수화 장치 및 이를 구비한 세탁기 |
CN102123952B (zh) * | 2009-02-09 | 2013-07-24 | 松下电器产业株式会社 | 热水器 |
JP5310431B2 (ja) * | 2009-09-17 | 2013-10-09 | パナソニック株式会社 | ヒートポンプ式温水暖房装置 |
-
2010
- 2010-09-30 JP JP2010220945A patent/JP4968376B2/ja not_active Expired - Fee Related
-
2011
- 2011-09-28 AU AU2011310303A patent/AU2011310303B2/en not_active Ceased
- 2011-09-28 WO PCT/JP2011/005465 patent/WO2012042868A1/ja active Application Filing
- 2011-09-28 EP EP11828434.8A patent/EP2623463A4/en not_active Withdrawn
- 2011-09-28 CN CN2011800457986A patent/CN103118989A/zh active Pending
- 2011-09-28 US US13/824,133 patent/US9140465B2/en not_active Expired - Fee Related
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JPH10174975A (ja) * | 1996-12-20 | 1998-06-30 | Konica Corp | 固定床型多孔質電極電解槽とそれを用いた水処理方法及び水処理装置 |
JP2005046809A (ja) * | 2003-07-31 | 2005-02-24 | Kurita Water Ind Ltd | スケール防止装置 |
WO2006027825A1 (ja) | 2004-09-06 | 2006-03-16 | Innovative Design & Technology Inc. | 冷却水循環装置、および冷却水循環装置のスケール除去方法 |
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JP2012075983A (ja) | 2012-04-19 |
CN103118989A (zh) | 2013-05-22 |
US20130175160A1 (en) | 2013-07-11 |
AU2011310303A1 (en) | 2013-04-11 |
EP2623463A1 (en) | 2013-08-07 |
JP4968376B2 (ja) | 2012-07-04 |
EP2623463A4 (en) | 2017-02-08 |
US9140465B2 (en) | 2015-09-22 |
AU2011310303B2 (en) | 2014-07-31 |
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