WO2006038482A1 - 温水装置およびドレイン中和装置 - Google Patents
温水装置およびドレイン中和装置 Download PDFInfo
- Publication number
- WO2006038482A1 WO2006038482A1 PCT/JP2005/017653 JP2005017653W WO2006038482A1 WO 2006038482 A1 WO2006038482 A1 WO 2006038482A1 JP 2005017653 W JP2005017653 W JP 2005017653W WO 2006038482 A1 WO2006038482 A1 WO 2006038482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel oil
- oil
- container
- drain
- casing
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 230000003472 neutralizing effect Effects 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 title abstract description 3
- 239000000295 fuel oil Substances 0.000 claims abstract description 231
- 239000003921 oil Substances 0.000 claims abstract description 195
- 239000000567 combustion gas Substances 0.000 claims abstract description 67
- 238000011084 recovery Methods 0.000 claims abstract description 22
- 230000002378 acidificating effect Effects 0.000 claims abstract description 10
- 238000006386 neutralization reaction Methods 0.000 claims description 51
- 238000001514 detection method Methods 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 description 17
- 238000000926 separation method Methods 0.000 description 16
- 239000000446 fuel Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 11
- 239000007921 spray Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000005192 partition Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 230000008961 swelling Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000003350 kerosene Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000009429 electrical wiring Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
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- 239000011347 resin Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 235000003301 Ceiba pentandra Nutrition 0.000 description 1
- 244000146553 Ceiba pentandra Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009118 appropriate response Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 229920001155 polypropylene Polymers 0.000 description 1
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- 230000000717 retained effect Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/12—Preventing or detecting fluid leakage
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/36—Control of heat-generating means in heaters of burners
-
- 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
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
- F24H8/006—Means for removing condensate from the heater
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Definitions
- the present invention relates to a hot water device that generates hot water using a combustor that burns fuel oil such as kerosene or light oil, and more specifically, heat recovery from the combustion gas power generated by the combustor.
- the present invention relates to a type of hot water device in which drain (condensed water) is generated as a result of carrying out the above, and a drain neutralization device for performing neutralization treatment of the drain.
- a hot water apparatus for example, as described in Patent Document 1, there is a so-called latent heat recovery type apparatus.
- a heat exchanger such as a combustion gas generated by a combustor
- latent heat is also collected in addition to sensible heat of the combustion gas. Therefore, the heat exchange efficiency is high.
- water vapor in the combustion gas is condensed and a large amount of drain is generated. This drain has a strong acidity of about PH3 that absorbs sulfur oxides and nitrogen oxides in the combustion gas.
- the hot water apparatus is configured to use a drain neutralization apparatus in which a neutralizing agent is accommodated in a container, to perform neutralization treatment of the drain, and to perform power disposal.
- Patent Documents 2 and 3 propose a structure for detecting fuel oil leakage in a boiler equipped with a combustor. However, this structure does not take into account the structure peculiar to the hot water apparatus. Even if this structure is applied as it is, it is difficult to suitably detect the fuel oil leak specific to the hot water apparatus as described above. Lack of sex.
- Patent Document 1 Japanese Patent Laid-Open No. 2000-356311
- Patent Document 2 JP-A-1 111133
- Patent Document 3 Japanese Utility Model Publication No. 63-116747
- An object of the present invention is to provide a hot water device capable of detecting, when a fuel oil leak has occurred, with an appropriate and simple structure, and a drain neutralizing device used therefor. is there.
- the present invention takes the following technical means.
- a hot water apparatus includes a combustor that burns fuel oil, an exhaust port, and guides combustion gas generated by the combustor to the exhaust port.
- a heat exchanger having a gas flow path and a water pipe for heat recovery from the combustion gas power, a container into which an acidic drain generated by the heat recovery is introduced, and a neutralization accommodated in the container
- a drain neutralizer having an agent, and a container of the drain neutralizer when the fuel oil leaks to the combustor. It is provided so that the fuel oil may travel in at least one of the container and on the container, and the drain neutralizer may detect at least one fuel oil that has traveled in at least one of the container and on the container. It is characterized by having a sensor.
- the drain neutralizer is configured to allow the fuel oil to flow into the container when the fuel oil leaks into the combustion gas flow path and flows down.
- an oil trapping means positioned upstream of the oil sensor in the direction of fuel oil flow. The oil sensor detects that the amount of fuel oil flowing into the container exceeds the trappable amount of the oil trapping means. The fuel oil is detected when it flows downstream of the oil catching means.
- the container of the drain neutralizer is arranged below the combustor.
- the container of the drain neutralizer is arranged below the combustor.
- the fuel oil When the fuel oil leaks outside the combustion gas flow path from the combustor, the fuel oil includes an upper wall portion that receives the fuel oil, and the fuel oil flows through the combustion gas flow path.
- the fuel oil can flow into the container, and the oil sensor that detects the fuel oil that has progressed either on the top wall or inside the container is detected by the oil sensor. It is possible.
- the oil sensor is configured to be able to be detected by only one oil sensor in any region of the fuel oil in the container and on the upper wall portion. Used.
- the oil sensor has a hydrophobic casing that allows the fuel oil that has traveled to the outer surface to pass therethrough, and detects that the fuel oil has entered the casing. And at least a part of the casing of the oil sensor is arranged in the container so that the fuel oil in the container can enter the casing, and the oil sensor The fuel oil on the upper wall of the container is introduced into the casing of the oil sensor in one of the containers.
- An oil guide means is provided.
- the upper wall portion of the container is provided with an opening, and the casing of the foil sensor is passed through the opening of the bracket, so that at least the lower end of the casing is in the container.
- the oil sensor includes a support member that is attached to the periphery of the opening of the upper wall portion and supports the casing, and the oil guide means includes the support member and the upper wall portion. It includes at least one of a fuel oil passage gap formed between the periphery of the opening and a fuel oil passage hole formed in the support member.
- the casing of the oil sensor and the entire detection unit are provided in a container of the drain neutralizer, and the oil guide means supplies the fuel oil on the upper wall of the container to the container. Including the displacement of the member to be lowered and the hole.
- the oil sensor has a casing that is hydrophobic and allows fuel oil that has traveled to the outer surface to pass therethrough, and detects that the fuel oil has entered the casing.
- the casing is disposed on the upper wall portion of the container so that fuel oil on the upper wall portion of the container advances into the casing.
- an oil guide member is provided which extends through the upper wall portion into the container and raises the fuel oil in the container toward the casing.
- a hot water device provided by the second aspect of the present invention includes a combustor that burns fuel oil, a can body in which the combustor is attached to an upper portion, and a lower portion of the can body.
- a combustor that burns fuel oil
- a can body in which the combustor is attached to an upper portion, and a lower portion of the can body.
- Combustion gas that is formed in a series and is generated by the combustor and travels downward in the can body makes a U-turn in the bottom casing and enters the exhaust duct upward.
- a combustion gas flow path a heat exchanger having a water pipe disposed in at least one of the inside of the can and the bottom casing and performing water recovery for the combustion gas power, and accompanying the heat recovery
- a drain neutralizer having a container containing a neutralizing agent for neutralizing an acidic drain generated by The bottom casing produced fuel oil leakage in the combustion gas flow path when the drain dropped from the water pipe of the heat exchanger and from the combustor cover.
- it has a bottom plate portion for receiving the drain and fuel oil and a discharge port formed in the bottom plate portion, and a portion of the container of the drain neutralizer is arranged below the bottom plate portion.
- the other part is formed as a protruding portion that protrudes to the side of the lower region of the bottom plate portion, and the drain and fuel oil received by the bottom plate portion are contained in the container from the discharge locuser.
- the fuel oil leaked from the combustor to the outside of the combustion gas flow path flows down the outside of the can body and the bottom casing and is received by the protruding portion.
- the fuel oil that has flowed into the container and the fuel oil received by the protruding portion can be detected by at least one oil sensor provided in the drain neutralizer. It is characterized by that.
- the hot water device provided by the third aspect of the present invention includes a combustor that burns fuel oil, a can body in which the combustor is attached to an upper portion, and a bottom casing connected to the lower portion of the can body And an exhaust duct provided on the bottom casing so as to stand side by side with the can body and having an exhaust port, and inside the can body, the bottom casing, and the exhaust duct.
- Combustion gas formed in series and generated by the combustor and proceeding downward in the can body makes a U-turn in the bottom casing and enters upward into the exhaust duct.
- the heat exchanger having a water pipe disposed in at least one of the inside of the can and the bottom casing and performing water recovery for the combustion gas force heat recovery, and the bottom casing.
- a drain flow path forming member that forms a flow path for circulating an acidic drain generated in association with the heat recovery.
- the bottom casing removes the drain and the fuel oil when the drain falls from the heat exchanger water pipe and when the fuel oil leaks in the combustion gas flow path from the combustor. It has a bottom plate portion to be received and a discharge port formed in the bottom plate portion, and at least a part of the drain flow path forming member is formed as a protruding portion that protrudes to the side of the lower region of the bottom plate portion.
- the fuel oil flowing into the flow path in the drain flow path forming member and the fuel oil received by the protruding part are configured to be received by the protruding part after flowing down the outside of the bottom casing. It is characterized in that it can be detected by at least one oil sensor provided in the drain flow path forming member.
- the drain neutralization device provided by the fourth aspect of the present invention is combined with a hot water device that generates hot water by performing heat recovery of combustion gas power generated by a combustor that burns fuel oil.
- a drain neutralizer comprising a container into which an acidic drain generated along with the heat recovery is introduced, and a neutralizing agent accommodated in the container, It is characterized by comprising at least one oil sensor capable of detecting when the fuel oil has progressed in the container and / or on the container.
- the oil sensor includes an oil trapping unit positioned upstream of the oil sensor in the direction of fuel oil flow in the container, and the oil sensor is configured so that the fuel oil flowing into the container is the oil oil. It is configured to detect when it passes through the oil trapping means by exceeding the trappable amount of the trapping means, and the container receives this when the fuel oil flows down from above.
- the oil sensor is configured to be able to detect fuel oil received by the upper wall portion.
- FIG. 1 is a cross-sectional view of a main part showing an example of a hot water device according to the present invention.
- FIG. 2 is a cross-sectional view taken along the line II II in FIG.
- FIG. 3 is a cross-sectional view of a principal part showing a drain neutralization device provided in the hot water device shown in FIG. 1.
- FIG. 4 is a cross-sectional view of the main part of FIG.
- FIG. 5 is a cross-sectional view of a principal part showing another example of the drain neutralization apparatus according to the present invention.
- FIG. 6 is a cross-sectional view of the principal part showing another example of the drain neutralization apparatus in the present invention.
- FIG. 7 is a cross-sectional view of a principal part showing another example of a structure for attaching an oil sensor to a drain neutralizing device according to the present invention.
- FIG. 8 is a cross-sectional view of a main part showing another example of a structure for attaching an oil sensor to a drain neutralization device according to the present invention.
- FIG. 9A is a cross-sectional view of the main part showing another example of the oil sensor mounting structure according to the present invention
- 9B is a cross-sectional view of IX-IX of 9A.
- FIG. 10 is a plan cross-sectional view of a main part showing another example of an oil sensor mounting structure according to the present invention.
- FIG. 11] 11A ⁇ : L 1C is a cross-sectional view of the main part showing another example of the oil sensor mounting structure in the present invention.
- FIG. 12 is a cross-sectional view of a principal part showing another example of an oil sensor mounting structure according to the present invention.
- FIG. 13 is a cross-sectional view of a principal part showing another example of an oil sensor mounting structure according to the present invention.
- FIG. 14 is a cross-sectional view of the principal part showing another example of the structure for attaching the oil sensor to the drain neutralizing device in the present invention.
- FIG. 15A is a cross-sectional view of the main part showing another example of the drain neutralization apparatus according to the present invention
- 15B is an exploded cross-sectional view of 15A.
- FIG. 16 is a cross-sectional view of a principal part showing another example of the hot water device according to the present invention.
- Fig. 1 shows an embodiment of a hot water device according to the present invention.
- the hot water device A1 of this embodiment is composed of a combustor 1, a heat exchanger HT, a bottom casing 3, an exhaust duct 19 for silencing, and a container.
- the combustor 1 injects fuel oil such as kerosene or light oil downward from the spray nozzle 10, And it is of the reverse combustion type that is ignited by the spark plug 12 and burned.
- This combustor 1 has a configuration in which a spray nozzle 10 is provided in an upper portion of a can body 11 mounted on a can body 20 of a heat exchanger HT.
- the spray nozzle 10 is supplied with fuel oil from an oil tank (not shown) via a fuel supply unit 15.
- the fuel supply unit 15 includes an electromagnetic pump (not shown), an electromagnetic valve 15a, and an oil supply pipe 15b.
- Combustion air is sent downward from the blower fan 13 into the can 11, and the combustion air enters a combustion cylinder 14 provided around the spray nozzle 10 and the region below the spray nozzle 10. enter in.
- the combustion cylinder 14 has a plurality of vent holes on its peripheral wall, and the combustion air is swirled in the combustion cylinder 14. This swirling action promotes mixing of the atomized fuel oil and the combustion air.
- the bottom casing 3 is disposed below and supports the can body 20 and the exhaust duct 19.
- a combustion gas flow path 8 connected in series is formed in the can 20, the bottom casing 3, and the exhaust duct 19.
- Combustion gas generated by the combustor 1 travels downward in the can 20 and flows into the bottom casing 3, then makes a U-turn upward and flows into the exhaust duct 19. It is discharged to the outside as exhaust gas from the exhaust port 19a.
- a sound absorbing material (not shown) is arranged so that the exhaust sound can be reduced.
- the can body 20 and the exhaust duct 19 are erected side by side in a space-efficient manner, which appropriately suppresses an increase in the size of the water heater A1.
- the heat exchanger HT has primary and secondary heat exchange sections 2A and 2B.
- the primary heat exchange part 2 A is for recovery of sensible heat of combustion gas, and is provided in a region near the bottom in the can body 20.
- the primary heat exchange section 2A has a structure in which a plurality of water pipes 22b having a plurality of fins 24 penetrates the can body 20 in a substantially horizontal direction.
- the secondary heat exchanging section 2B is for recovering the latent heat of the combustion gas, and is provided in the bottom casing 3.
- the secondary heat exchanging section 2B includes a plurality of U-shaped tubes 23 each having a plurality of plate-like fins 26 as the water tubes.
- the base end portion of the U-shaped tube 23 having a pair of openings 23a and 23b passes through one side wall 30a of the bottom casing 3 and is connected to and fixed to a header portion 25 provided outside the one side wall 30a. Yes.
- the tip 23c of each U-shaped tube 23 Is a free end in an unsupported state, and each U-shaped tube 23 is supported in one piece.
- This support structure is suitable for preventing a large stress from being generated during the thermal expansion and contraction of each U-shaped tube 23.
- the plurality of U-shaped tubes 23 have a pair of openings 23a and 23b arranged in the vertical direction, and in a direction intersecting with the longitudinal direction of the plurality of U-shaped tubes 23 as shown in FIG. They are lined up at appropriate intervals.
- the plurality of U-shaped tubes 23 are arranged in steps so that the heights of the adjacent U-shaped tubes 23 are different from each other. With such an arrangement, the degree to which the combustion gas touches the plurality of U-shaped tubes 23 is increased, and the heat exchange efficiency is increased.
- each U-shaped tube 23 extends from one side wall 30a of the bottom casing 3 to a region immediately below the bottom opening of the can body 20 to a region directly below the exhaust duct 19.
- the heat transfer area is large.
- a gap between the upper portion of the fin 26 a in the longitudinal intermediate portion of each U-shaped tube 23 and the upper wall portion 30 c of the bottom casing 3 is closed by a blocking plate 31.
- a gap between the tip 23c of each U-shaped tube 23 and the other side wall 30b of the bottom casing 3 is closed by a blocking plate 32.
- the presence of these two blocking plates 31 and 32 further increases the degree of contact of the combustion gas with the plurality of U-shaped pipes 23 and fins 26.
- the header portion 25 has a pair of chambers 25a, 25b communicating with the openings 23a, 23b of the plurality of U-shaped tubes 23, respectively.
- a tube body having a water inlet 21a is connected to the chamber 25a, and an upstream end 22a ′ of the tube body 22a is connected to the chamber 25b.
- the water supplied to the water inlet 21a flows into the chamber 25a of the header section 25, then is heated while passing through the plurality of U-shaped tubes 23, and flows out into the chamber 25b.
- the water is heated while sequentially flowing through the pipes 22a and 22b, and then flows out from 2 lb of the hot water outlet and is supplied to a predetermined hot water supply destination.
- Supplying unheated low-temperature water to each U-tube 23 increases the efficiency of latent heat recovery of water vapor in the combustion gas.
- the way of water flow to the primary heat exchange part 2A and the secondary heat exchange part 2B is not limited to this.
- the tube 22b and the fin 24, which hardly generate drain are made of, for example, copper or a copper alloy having excellent heat conduction and cacheability.
- Each U-shaped tube 23 is inclined so that the base end portion has a lower height than the distal end portion 23c. According to such a configuration, for example, the reason why the water heater A1 is not used for a long period of time is also used when draining the water in each U-shaped tube 23. Can be made to flow toward the base end to facilitate the draining operation.
- the bottom plate portion 34 of the bottom casing 3 has a role of receiving a drain from which the secondary heat exchange portion 2B force also drops.
- the bottom plate portion 34 is provided with a discharge port 34a for sending the received drain into the container 40 of the drain neutralizer B1. Inclined so that the height decreases as you approach.
- the bottom plate portion 34 is inclined so that the drain can be collected at the discharge port 34a even in the direction orthogonal to the paper surface of FIG.
- the bottom plate portion 34 is located below the spray nozzle 10. If a fuel oil leaks from the spray nozzle 10 downward, it receives this fuel oil and drains from the discharge port 34a. It also plays a role of feeding into the container 40 of the neutralizer B1.
- the container 40 of the drain neutralizer B1 is, for example, a blow molded product made of synthetic resin.
- An intermediate portion in the width direction of the container 40 is a neutralization treatment tank 4B in which a neutralizing agent 60 is accommodated.
- Neutralizer 60 is, for example, granular calcium carbonate.
- a portion near one end of the container 40 is a separation processing tank 4A for separating and trapping impurities mixed in the drain and a relatively small amount of fuel oil. If ignition failure occurs when the combustor 1 is driven, unburned fuel oil may be generated and mixed into the drain, and the separation treatment tank 4 A has a function of capturing such unburned fuel oil. Have it.
- the portion near the other end of the container 40 is an oil detection auxiliary portion 4C to which the oil sensor 5 is attached.
- the separation treatment tank 4A and the neutralization treatment tank 4B are disposed below the bottom plate 34 of the bottom casing 3.
- the drain neutralization device Bl is accommodated in the bottom of the outer case 90 with good space efficiency.
- Substantially the entire auxiliary portion 4C is located in the outer case 90, and is a protruding portion 49 that protrudes from the lower region of the bottom casing 3 to one side (left side in FIG. 1). As will be described later, the protruding portion 49 serves to receive the fuel oil that has failed in the combustor 1 and has flowed down the outer surface of the can 20 or the bottom casing 3.
- the separation treatment tank 4A is connected to the discharge port 34a via the piping member 34b so as to receive the drain from the discharge port 34a of the bottom casing 3.
- a partition wall 41A extending downward is formed on the upper wall portion of the separation treatment tank 4A.
- An oil adsorption filter 61 is provided in the second chamber 43b.
- This oil adsorption filter 61 is made of fibrous activated carbon, various activated carbons such as coconut husk activated carbon, vegetable fibers such as Kapok fibers, chemical polymers of polymer polymers such as polypropylene, or hydrocarbon granules.
- An opening 43b ′ with a lid is provided on the upper wall of the second chamber 43b, and this opening 43b ′ serves as an inlet / outlet for the oil adsorption filter 61.
- the drain when the drain flows into the first chamber 43a from the upper inlet 45a, the drain is stored at an appropriate liquid level height Ha and has a specific gravity smaller than that of the drain. Fuel oil and other contaminants float on the drain surface, forming their layer F1. However, since there is a partition wall 41A in the vicinity of the liquid level, these fuel oil and contaminants are prevented from flowing into the second chamber 43b and trapped in the first channel 3a. . Even if the fuel oil passes through the communication portion 46A and flows into the second chamber 43b, the fuel oil is captured by the oil adsorption filter 61. Therefore, the fuel oil is prevented from flowing into the neutralization tank 4B through the circulation port 45b.
- Contaminants having a specific gravity greater than that of the drain become precipitates 99. Although this deposit 99 may flow into the second chamber 43b, the flow port 45b of the second chamber 43b is at a certain height Ha from the bottom, so this precipitate 99 is neutralized.
- To flow into treatment tank 4B. Is properly blocked, and is also blocked by the oil adsorption filter 61.
- the first chamber 43a of the separation treatment tank 4A is also provided with a drain level sensor 97 and an outlet 47a.
- the liquid level sensor 97 detects when clogging occurs in the downstream area of the first chamber 43a and the liquid level of the drain in the separation processing tank 4A rises abnormally.
- the detection signal is transmitted to a control unit (not shown) that controls the operation of the hot water apparatus A1.
- the outlet 47a is for avoiding when the drain in the separation treatment tank 4A is frozen in the winter, for example, when the hot water device A1 is not used for a long period of time and the drain is pulled out. Normally, it is blocked by the plug 47b.
- the neutralization treatment tank 4B is provided with openings 43c 'and 43d' with lids for introducing the neutralizing agent 60 into the upper wall.
- the upper wall is provided with a partition wall 41B extending downward, the interior of the neutralization tank 4B is the first and second where the bottoms communicate with each other via the communication part 46B. It is divided into second chambers 43c and 43d.
- This neutralization treatment tank 4B is similar to that described for the separation treatment tank 4A when fuel oil is not captured in the separation treatment tank 4A and fuel oil flows into the neutralization treatment tank 4B. By principle, the fuel oil is trapped in the first chamber 43c.
- the fuel oil floats on the drain, and is prevented from flowing into the second chamber 43d due to the presence of the partition wall 41B, and is captured.
- this neutralization treatment tank 4B when the drain flows from the first channel 3c through the communication part 46B to the second chamber 43d, the drain soaks below the partition wall 41B. Talk about the path. Accordingly, it is possible to obtain an effect of efficiently performing the neutralization treatment by making the drain flow path length in the neutralization treatment tank 4B long to allow the drain to come into contact with many neutralizing agents 60.
- the auxiliary part 4C has a flat and substantially box shape, and has a flow path 43e through which the drain flowing from the flow port 45c at the rear part of the neutralization treatment tank 4B flows.
- the drain that has flowed through the flow path 43e is led to the outside of the outer case 90 and flows out from the discharge port 45d to an appropriate drainage pipe (not shown) connected to that portion.
- Two area forces between the flow path 43e and the upper wall 44 in the auxiliary part 4C serve as an oil detection area by the oil sensor 5. It is.
- the separation treatment tank 4A and the neutralization treatment tank 4B of the drain neutralization apparatus B1 have a function of capturing the fuel oil mixed in the drain. Fuel oil does not flow into Road 43e.
- auxiliary portion 4C Almost the entire auxiliary portion 4C is the protruding portion 49 that protrudes from the lower region of the bottom casing 3 as described above.
- the protruding portion 49 is located immediately below the fuel supply portion 15 of the combustor 1, preferably the main piping portion of the fuel supply portion 15.
- the protruding portion 49 has a relatively large width in a direction orthogonal to the paper surface of FIG. 3, and most of the fuel oil that flows down from the fuel supply portion 15 is recessed 44b. To flow into.
- the protruding portion 49 is formed so as to occupy substantially the entire region immediately below the gap S 1 between one side wall 90 a of the outer case 90 and the bottom casing 3 at the bottom in the outer case 90. In this way, the fuel oil is more reliably received by the protruding portion 49.
- the oil sensor 5 is configured such that the oil swelling material 52a and the movable member 52b are accommodated in the casing 51, and the detection member is connected to the support member 55 joined to the casing 51.
- 52c has a structure attached via a cover case 57.
- the casing 51 has a cylindrical shape having a bottom wall portion at the bottom, and a flange 5 la is formed at the top.
- the entire casing 51 is made of, for example, a porous sintered resin, and has hydrophobicity, lipophilicity and oil permeability. When oil adheres to the outer surface of the casing 51, the oil permeates the casing 51 and can proceed to the inside.
- Oil swelling substance 52a, the movable member 52b, and the detection switch 52c constitute a detection unit 52 that detects when oil enters the casing 51.
- the oil swelling material 52a is made of, for example, silicone resin powder, and has a characteristic that when the oil enters the casing 51, the oil is absorbed to increase the volume.
- the movable member 52b rises accordingly, and presses the switching contact of the detection switch 52c. As a result, a signal indicating that oil has been detected is output and input to the control unit.
- An opening 44c is formed in the upper wall portion 44 of the auxiliary portion 4C, and the casing 51 passes through the opening 44c.
- the flange 51a of the casing 51 is in contact with and engaged with the upper surface of the peripheral edge 44d of the opening flange 44c. With this structure, the opening 44c is closed by the flange 51a, and the height of the casing 51 is set.
- a part 48a in the vicinity of the outlet 60b of the bottom part 48 of the auxiliary part 4C is higher than the other part by an appropriate dimension Hb, and an appropriate drain is located in the upstream area of the part 48a. It is stored at the surface height.
- a concave portion 48b is formed in the bottom portion 48 directly below the oil sensor 5, and the tip of the casing 51 enters the concave portion 48b.
- the volume in which the casing 51 is immersed in the drain can be further increased, and the amount of fuel oil entering the casing 51 can be increased.
- the support member 55 has a substantially disc shape made of water-impermeable and oil-impermeable, for example, synthetic resin or stainless steel, and covers the base end portion so as to close the opening of the base end portion of the casing 51. It is.
- the support member 55 is attached to the upper wall portion 44 by a plurality of screw bodies 92.
- a gap 56 is formed between the support member 55 and the upper surface of the upper wall portion 44 as a flow path for fuel oil passage. When the fuel oil also passes through the gap 56, the upper force of the upper wall 44 reaches the flange 51a of the casing 51, and then travels in various directions in the small cavity of the sintered resin that constitutes the casing 51 by capillary action.
- the peripheral portion 44d of the opening 44c is provided with a step, and the portion of the peripheral portion 44d with which the flange 5la abuts is lower than the outer peripheral portion. Because of this Thus, the opening width (width in the height direction) of the gap 56 is made smaller than the thickness of the flange 51a, and the fuel oil is easy to flow in, but solid dust is difficult to enter.
- the gap 56 is formed over the entire circumference of the support member 55.
- the drain sent to the drain neutralizer B1 is discharged to the outside via the separation treatment tank 4A, the neutralization treatment tank 4B, and the auxiliary unit 4C.
- an appropriate amount of fuel oil is first captured in the first chamber 43a of the separation processing tank 4A. Further, even if fuel oil that is not captured is generated, it is captured by the oil adsorption filter 61 of the second chamber 43b. Further, it is also captured by the first chamber 43c of the neutralization tank 4B. Contaminants other than fuel oil are also captured in the separation treatment tank 4A. In the neutral treatment tank 4B, the drain is neutralized.
- the fuel oil does not flow into the combustion gas flow path 8, but outside the can bodies 11, 20. It flows down the surface. Then, the fuel oil is received by the protruding portion 49 of the container 40 and collected in the concave portion 44b of the upper wall portion 44. Next, the fuel oil passes through a gap 56 between the upper wall portion 44 and the support member 55 of the oil sensor 5 and enters the casing 51 of the oil sensor 5 and is detected by the oil sensor 5. Therefore, even in this case, the fuel oil leak is appropriately notified.
- the user can immediately detect the abnormality and take appropriate countermeasures. At the time of detecting the abnormality, it is also possible to perform control for emergency stop of the operation of the hot water device A1.
- Combustor 1 is essentially free from fuel oil leakage as described above. Even if a fuel oil leak occurs, it is possible to take appropriate measures as described above, giving the user a sense of security.
- the drain neutralizer B1 is provided with an oil trapping means such as the oil adsorption filter 61. If a small amount of fuel oil generated due to mere ignition failure or the like flows into the container 40, this is detected. Therefore, when fuel oil is detected by the oil sensor 5 and is determined to be abnormal, the reliability of the determination is very high.
- This hot water apparatus A1 is performed using a configuration in which the oil sensor 5 is provided in the container 40 of the drain neutralization apparatus B1 for detecting the detection of fuel oil leakage from the combustor 1. Therefore, it is suitable to reduce the number of parts that do not need to be provided with a dedicated container for the leaked fuel oil separately from the container 40. In particular, since the fuel oil leaked inside or outside the combustion gas flow path 8 can be received by one container 40, the configuration is rational and the number of parts is reduced. It is more suitable to do. Since the oil sensor 5 is attached to the container 40, it is not necessary to separately provide a dedicated bracket for attaching the oil sensor 5.
- the oil sensor 5 can detect any fuel oil inside the container 40 and on the upper wall portion 44, it is not necessary to use another oil sensor. By minimizing the number of oil sensors used, the cost of parts can be reduced, and the structure of electrical wiring connected to the oil sensor can be simplified. For this reason, in the hot water apparatus A1, it is possible to suitably reduce the manufacturing cost and reduce the overall size.
- FIGS. 5-16 illustrate other embodiments of the present invention.
- elements that are the same as or similar to those in the embodiment are assigned the same reference numerals as in the embodiment.
- the partial force of the neutralization tank 4B and the lower region force of the bottom casing 3 inside the outer case 90 are the protruding portions 49A protruding to the side thereof.
- An oil sensor 5 is attached to the upper wall portion 44 of the protruding portion 49A.
- the structure for attaching the oil sensor 5 to the upper wall portion 44 is the same as that in the above embodiment.
- the casing 51 of this oil sensor 5 is set, for example, so that its lower end is in direct contact with the drain in the neutralization tank 4B and is mixed into the drain. Then, the fuel oil floating on the upper layer is detected by the oil sensor 5.
- an upright wall 41b is provided on the downstream side of the partition wall 41B.
- the upright wall 41b stands upward from the bottom of the neutralization treatment tank 4B. Since the drain upstream of the standing wall 41b travels beyond the standing wall 41b to the downstream region, the standing wall 41b is provided, so that the drain in the neutralization tank 4B is provided. In this case, the substantial flow path length of the drain becomes longer, and the neutralization process is further promoted.
- the protruding portion 49A is formed by using a part of the neutralization tank 4B, it is not necessary to provide the container 40 with a portion corresponding to the auxiliary portion 4C of the above embodiment. Therefore, the shape of the container 40 can be simplified and the cost can be reduced. Since there is no need to provide the auxiliary part 4C, it is possible to increase the size of the neutralization tank 4B and increase the neutralization capacity.
- the opening 44c for attaching the oil sensor 5 is formed on the upper wall 44 of the neutralization treatment tank 4B, the opening 44c can be used as an inlet for the neutralizing agent 60.
- the upper wall portion 44 of the container 40 of the drain neutralizer B3 has a concave shape whose height decreases as it approaches the oil sensor 5. According to such a configuration, it becomes possible to actively collect the fuel oil that has flowed into the upper wall portion 44 at the location where the oil sensor 5 is attached, and to improve the detection accuracy or detection speed of the fuel oil. Is more suitable.
- a fuel oil passage is formed between the support member 55 and the upper wall portion 44 by forming a step or a recess in the lower surface portion of the support member 55 of the oil sensor 5.
- a gap 56 is provided. Even with such a configuration, the fuel oil existing in both the inside of the container 40 and the upper wall portion 44 can be detected by one oil sensor 5 as in the above-described embodiment.
- the support member 55 of the oil sensor 5 is provided with one or a plurality of through holes 56A as fuel oil passages. According to such a configuration, when the fuel oil flows on the support member 55, the fuel oil passes through the through hole 56A. Head toward casing 51. As will be understood from this embodiment, the present invention does not work as a configuration for detecting the fuel oil flowing on the oil sensor 5 that is not directly on the upper surface of the upper wall portion 44. .
- the configuration in which the through hole 55 is provided in the support member 55 shown in FIG. 8 and the configuration in which the gap 56 is provided between the support member 55 and the upper wall portion 44 shown in FIG. 7 and FIG. 4 may be combined. ,.
- a cylindrical wall 69 projecting downward is provided on the lower surface of the upper wall 44 of the container 40.
- This wall 69 surrounds the casing 51 of the oil sensor 5.
- a standing wall 68 that blocks the drain is provided in the flow path 43e in the container 40 downstream of the oil sensor 5, and a part of the drain blocked by the standing wall 68 is a wall portion. It begins to stay in the area surrounded by 69.
- the layer F1 is surrounded by the wall portion 69. Stay in the area.
- the fuel oil in this layer F1 has more opportunities to come into contact with the casing 51 of the oil sensor 5. Accordingly, the fuel oil can easily enter the casing 51, and the detection accuracy of the fuel oil is increased.
- the wall 69 is not substantially cylindrical, but has a substantially U-shape in plan sectional view having an opening 69a in the upstream portion in the drain flow direction (the direction indicated by the arrow in FIG. 10). .
- the fuel oil mixed and flowing into the drain can be actively introduced into the region surrounded by the wall 69 from the opening 69a and can be retained. Therefore, also in this embodiment, the fuel oil captured by the wall 69 can be easily brought into contact with the casing 51, and an effect of improving the detection accuracy of the fuel oil can be obtained.
- the entire oil sensor 5 is provided in the auxiliary portion 4 C of the container 40.
- the electrical wiring (not shown) for driving the detection unit 52 and for signal output is, for example, inserted through a hole (not shown) provided at an appropriate location of the auxiliary unit 4C and pulled out to the outside.
- the oil guide member 67 has, for example, a bar shape or a plate shape, and is hydrophobic, oleophilic and oil permeable, like the casing 51 of the oil sensor 5. It consists of the sintered resin which has.
- the oil guide member 67 passes through the upper wall portion 44, and an upper end thereof is exposed above the upper wall portion 44.
- the oil sensor 5 since the oil sensor 5 is provided in the flow path 43e, the fuel oil existing in the flow path 43e can be detected.
- the fuel oil existing on the upper wall 44 can be guided into the flow path 43e through the oil guide member 67.
- the fuel oil introduced into the flow path 43e in this way comes into contact with the casing 51 of the oil sensor 5 in the process of flowing downstream, and this is detected.
- the entire oil sensor 5 can be provided in the container 40, and the fuel oil on the upper wall portion 44 can be introduced into the container 40 by the guide means. According to such a configuration, the entire oil sensor 5 can be protected from the external environmental force of the container 40.
- the lower end 67 a of the oil guide member 67 is in contact with the outer surface of the casing 51 of the oil sensor 5. According to such a configuration, the fuel oil descending through the oil guide member 67 can be directly advanced to the casing 51, and the detection of the fuel oil becomes more reliable.
- the oil guide member 67A is a pipe having a force through hole, and the fuel oil existing on the upper wall portion 44 flows through the through hole of the oil guide member 67A. It is led into the road 43e. Even with such a configuration, when fuel oil is present on the upper wall portion 44, it can be detected by the oil sensor 5. However, in the configuration of the present embodiment, when there is a liquid or other substance other than the fuel oil on the upper wall portion 44, there is a possibility that these may be guided into the flow path 43e. Little! /, Prefer to use the lever configuration under certain conditions.
- the oil guide means in the present invention is preferably constructed using a member having hydrophobicity, lipophilicity and oil permeability, but such a member is not necessarily used.
- a through hole is provided in the upper wall portion 44, and the fuel oil on the upper wall portion 44 passes through the through hole. Therefore, it is possible to adopt a configuration in which the liquid is simply dropped into the flow path 43e.
- the entire oil sensor 5 is mounted on the upper wall portion 44 of the container 40.
- the fuel oil on the upper wall 44 can be directly detected.
- the upper wall portion 44 is inclined so that fuel oil can be collected around the casing 51, and a concave portion is formed.
- an oil guide member 67B that extends through the upper wall 44 and into the flow path 43e is connected to the bottom of the casing 51.
- the oil guide member 67B is made of the same material as the casing 51, for example, and has hydrophobicity, lipophilicity and oil permeability.
- the lower end tip portion of the oil guide member 67B is provided so as to enter the recess 48b provided in the bottom surface portion of the flow path 43e and be immersed in the drain stored in the recess 48b.
- casing 51 of oil sensor 5 is passed through opening 44c provided in upper wall portion 44. This casing 51 is located across the two oil detection areas in the container 40 and on the upper wall 44.
- the fuel oil in the container 40 travels from the lower end tip of the casing 51 into the casing 51, and the fuel oil on the upper wall 44 has an intermediate partial force in the height direction of the casing 51.
- the fuel oil can be detected even in the case of V, deviation, proceeding into the casing 51.
- it is not necessary to use an oil guide member separately. Therefore, the total number of parts can be reduced, and the manufacturing cost can be further reduced.
- the drain neutralization device B5 includes a cartridge type container 40A.
- An oil adsorption filter 61 is accommodated in a region near one end in the container 40A, and a neutralizing agent 60 is filled in the other region.
- the container 40A is removably accommodated in a space space 91 below or below the bottom casing 3.
- connection port 400 provided at the tip of the container 40A is freely detachable with respect to the tube body part 340 that forms the discharge port 34a of the bottom casing 3. As shown in FIG. 15B, when the container 40A is moved forward from the state where the container 40A is separated from the tube part 340 toward the tube part 340, the connection port 400 is easily fitted to the tube part 340. You can connect.
- the container 40A has a flange portion 401 at a base end portion thereof, and can be fixed by bolting it to a flange portion 30d provided in the bottom casing 3.
- a pipe member 50A equipped with an oil sensor 5 is connected to the drain discharge port 402 at the base end of the container 40A, and this is detected when fuel oil passes through the pipe member 50A.
- the structure of the drain neutralizer B5 is simple, and the price can be reduced. Therefore, for example, it is necessary to replace the oil adsorption filter 61 and the neutralizing agent 60, and it is possible to reduce the cost burden on the user when replacing the container 40A with a new one.
- the operation of attaching and detaching the container 40A to the discharge port 34a of the bottom casing 3 is also easy.
- the drain neutralization apparatus according to the present invention can be configured as a cartridge type.
- the oil trapping means in the present invention for example, only an oil adsorption filter can be used. In the configuration shown in FIG.
- substantially the entire container 40A is located below the bottom casing 3, and the container 40A receives fuel oil flowing down outside the combustion gas flow path of the hot water device. Not. Even in such a configuration, the fuel oil leaked into the combustion gas flow path flows into the container 40A and is appropriately detected by the oil sensor 5, and thus is included in the technical scope of the present invention. Is done. However, in this case, the fuel oil flowing down outside the combustion gas flow path is received on the upper surface of the piping member 50A (drain flow path forming member) and detected by the force oil sensor 5. I can do it.
- the drain for fuel oil leaking into the combustion gas flow path A configuration in which only the fuel oil leaked to the outside of the combustion gas flow path without being allowed to flow into the container of the neutralization device is received by the container or a drain flow path forming member instead of the container is also within the technical scope of the present invention. Be included.
- a container 40B that houses the oil adsorption filter 61 and the neutralizing agent 60 of the drain neutralizer B2 is formed integrally with the bottom casing 3. More specifically, the bottom casing 3 includes a plurality of side wall portions 39 extending below the bottom plate portion 34 having the discharge port 34a, and an additional bottom plate portion 38 that closes the bottom opening of the side wall portions 39. Accordingly, a container 40B having an accommodation space below the bottom plate portion 34 is formed in a body. In this container 40B, an oil adsorption filter 61 is disposed below and around the discharge port 34a, and the neutralizing agent 60 is accommodated in the adjacent region separated by the partition wall 49a. Has been. A piping member 50A having an oil sensor 5 is connected to the drain outlet 45g of the container 40B.
- the container 40B can be manufactured together with the bottom casing 3, and it is not necessary to prepare a separate container.
- the container of the drain neutralization apparatus referred to in the present invention is formed integrally with other components of the hot water apparatus which may not be formed as a single article. Even if it is being done, it is not enough.
- the fuel oil flowing down outside the combustion gas passage is received on the upper surface of the piping member 50A and can be detected by the force oil sensor 5 in the same manner as in the above embodiment.
- the secondary heat exchange unit 2B in the present embodiment is not provided in the bottom casing 3.
- the secondary heat exchange section 2B includes a can body 20B sandwiched between the can body 20 of the primary heat exchange section 2A and the bottom casing 3, and a tube body 22c provided across the can body 20B. It is set as the structure provided.
- the tube 22c is provided with a plurality of fins 24b, which are made of, for example, stainless steel having excellent corrosion resistance.
- the way of water flow in the heat exchange ⁇ HT is the same as that of the previous embodiment, and the water that has entered the inlet 21a passes through the tube 22c of the secondary heat exchange section 2B.
- the secondary heat exchange unit 2B as shown in the present embodiment can also recover the latent heat of the combustion gas, and such a configuration can be adopted in the present invention.
- the present invention is not limited to the embodiment described above.
- the specific configuration of each part of the hot water device and the drain neutralization device according to the present invention can be varied in design in various ways.
- oil sensors other than those described above can be adopted as the oil sensor.
- an optical detection means that detects a change in volume when an oil swelling material swells by absorbing fuel oil.
- the present invention is suitable when a reverse combustion method in which fuel is burned downward is employed.
- the present invention can also be applied to a combustion method different from this.
- the combustor may have a structure in which, for example, the fuel is vaporized and burned instead of the fuel oil spray combustion.
- the hot water device in the present invention means a device having a function of generating hot water.
- various hot water supply devices for general hot water supply, Furo hot water supply, heating, and snow melting, etc. Includes equipment that produces hot water to be used.
- the fuel oil as used in the present invention is a broad concept including petroleum oil such as kerosene and light oil, oil as a fractional component of petroleum, and combustion oil generated from other than petroleum.
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004-291859 | 2004-10-04 | ||
JP2004291859A JP4604635B2 (ja) | 2004-10-04 | 2004-10-04 | ドレイン処理装置を備えた給湯装置 |
JP2004-299454 | 2004-10-13 | ||
JP2004299454A JP4815779B2 (ja) | 2004-10-13 | 2004-10-13 | 給湯装置 |
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WO2006038482A1 true WO2006038482A1 (ja) | 2006-04-13 |
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PCT/JP2005/017653 WO2006038482A1 (ja) | 2004-10-04 | 2005-09-26 | 温水装置およびドレイン中和装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2011058671A (ja) * | 2009-09-08 | 2011-03-24 | Mizoguchi Shigeru | 結露回収装置を備えた熱交換器 |
JP2013071089A (ja) * | 2011-09-28 | 2013-04-22 | Noritz Corp | 中和装置、並びに、燃焼装置 |
JP2013215712A (ja) * | 2012-03-12 | 2013-10-24 | Noritz Corp | 中和装置 |
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JPS63251722A (ja) * | 1987-04-08 | 1988-10-19 | Matsushita Electric Ind Co Ltd | 漏油センサ |
JP2001252676A (ja) * | 2000-03-10 | 2001-09-18 | Osaka Gas Co Ltd | 排気ドレン中和装置 |
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2005
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS63251722A (ja) * | 1987-04-08 | 1988-10-19 | Matsushita Electric Ind Co Ltd | 漏油センサ |
JP2001252676A (ja) * | 2000-03-10 | 2001-09-18 | Osaka Gas Co Ltd | 排気ドレン中和装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2011058671A (ja) * | 2009-09-08 | 2011-03-24 | Mizoguchi Shigeru | 結露回収装置を備えた熱交換器 |
JP2013071089A (ja) * | 2011-09-28 | 2013-04-22 | Noritz Corp | 中和装置、並びに、燃焼装置 |
JP2013215712A (ja) * | 2012-03-12 | 2013-10-24 | Noritz Corp | 中和装置 |
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