US20220163235A1 - Heat exchanger having circulation guide - Google Patents
Heat exchanger having circulation guide Download PDFInfo
- Publication number
- US20220163235A1 US20220163235A1 US17/669,619 US202217669619A US2022163235A1 US 20220163235 A1 US20220163235 A1 US 20220163235A1 US 202217669619 A US202217669619 A US 202217669619A US 2022163235 A1 US2022163235 A1 US 2022163235A1
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- Prior art keywords
- heat exchanger
- water
- guide
- body tube
- side flow
- Prior art date
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 162
- 230000002093 peripheral effect Effects 0.000 claims description 32
- 239000000567 combustion gas Substances 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000008236 heating water Substances 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/205—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with furnace tubes
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
- F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
- F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
- F24H1/287—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged in line with the combustion chamber
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
- F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1638—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing with particular pattern of flow or the heat exchange medium flowing inside the conduits assemblies, e.g. change of flow direction from one conduit assembly to another one
- F28D7/1646—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing with particular pattern of flow or the heat exchange medium flowing inside the conduits assemblies, e.g. change of flow direction from one conduit assembly to another one with particular pattern of flow of the heat exchange medium flowing outside the conduit assemblies, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1669—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube
- F28D7/1676—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/226—Transversal partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/228—Oblique partitions
Definitions
- the present invention relates to a heat exchanger having a circulation guide and, more particularly, to a heat exchanger having a circulation guide, which induces circulation to prevent water exchanging heat with a combustion gas at a high temperature from stagnating.
- the present invention relates to a heat exchanger having a circulation guide, which includes a spiral guide disposed on the side of a discharge port to force water to be introduced to a discharge side and a plate-shaped guide disposed on the side of an inlet port to force water to be supplied to the discharge side.
- a boiler used in a home, an office, a factory, and various types of public buildings includes a burner for supplying a heat source (flames and a combustion gas at a high temperature) and a heat exchanger that performs heat-exchanging between the heat source supplied by the burner and water.
- a boiler disclosed in Korean Patent Laid-open Publication No. 2013-0085090, as illustrated in FIGS. 1 and 2 includes a combustion device 150 having a blower fan 152 and a fuel suction port 153 in addition to a burner 151 , and a heat exchanger installed below the combustion device 150 .
- the heat exchanger includes a boiler casing 110 , a water tank 120 , a top end plate 121 , a bottom end plate 122 , and a combustion pipe 130 .
- water supplied via a direct water supply pipe 112 a passes through the water tank 120 corresponding to a water chamber and then is discharged to a discharge pipe 112 b.
- a heat source such as flames and a combustion gas at a high temperature
- the burner 151 connected to a fire chamber 111 , and the combustion gas heats water while passing through the combustion pipe 130 .
- the combustion gas of which heat is dissipated due to water, is discharged to the outside via a discharge portion 140 .
- a wide flow space (a first space portion) is formed in a lower portion of the top end plate 121 that constitutes the fire chamber 111
- a narrow flow path (a second space portion) is formed between sidewalls of the fire chamber 111 and the boiler casing 110 , so that severe stagnation occurs in a section in which water is introduced from the second space portion to the first space portion.
- the present invention is directed to providing a heat exchanger having a circulation guide, which induces circulation to prevent water exchanging heat with a combustion gas at a high temperature from stagnating.
- a heat exchanger including a circulation guide including: a heat exchanger body ( 210 ) including therein a water chamber ( 210 a ); a top body tube ( 220 ) including therein a fire chamber ( 220 a ), installed at a top end of an inside of the heat exchanger body ( 210 ), and including a sidewall ( 221 ) of which at least a portion is spaced apart from an inner circumferential surface of the heat exchanger body ( 210 ); an inlet port (IN) formed at a bottom end of the heat exchanger body ( 210 ) and allowing water to be supplied therethrough to the water chamber 210 a; an outlet port (OUT) connected to a top end of the heat exchanger body ( 210 ) and allowing the water that is heated while passing through the water chamber ( 210 a ) to be discharged therethrough; a spiral guide ( 223 ) formed at the sidewall ( 221 ) of the top body tube ( 220 ) in a spiral
- the plate-shaped guide ( 250 ) may further include a central side flow guide ( 250 - 1 ) space apart from the peripheral side flow guide ( 250 - 2 ) in a longitudinal direction of the plurality of combustion pipes ( 240 ) and disposed relatively adjacent to the inlet port (IN) than the peripheral side flow guide ( 250 - 2 ) is thereto.
- the central side flow guide ( 250 - 1 ) may be installed to extend from a center of the heat exchanger body ( 210 ) outwardly by a predetermined length.
- the peripheral side flow guide ( 250 - 2 ) may be installed to extend from an inner circumferential surface of the heat exchanger body ( 210 ) inwardly by a predetermined length.
- the floor surface ( 222 ) of the top body tube ( 220 ) may be adjacent to the sidewall ( 221 ) of the top body tube ( 220 ).
- peripheral side flow guide ( 250 - 2 ) and the floor surface ( 222 ) of the top body tube ( 220 ) may be disposed in parallel to each other.
- the plurality of combustion pipes ( 240 ) may be connected so that a top end of each of the plurality of combustion pipes ( 240 ) passes through the floor surface ( 222 ) of the top body tube ( 220 ) and guide flow of a high-temperature combustion gas introduced through the fire chamber 220 a.
- FIG. 1 is a cross-sectional view of a boiler according to the related art.
- FIG. 2 is a perspective view of a heat exchanger of the boiler according to the related art.
- FIG. 3 is a cross-sectional view of a heat exchanger having a circulation guide according to a first embodiment of the present invention.
- FIG. 4 is a perspective view of a spiral guide according to the first embodiment of the present invention.
- FIG. 5 is a cross-sectional view of a heat exchanger having a circulation guide according to a second embodiment of the present invention.
- FIG. 6 is a plan view of a plate-shaped guide according to the second embodiment of the present invention.
- FIG. 7 is a front cross-sectional view illustrating a heat exchanger including a circulation guide according to a third embodiment of the present invention.
- a spiral guide 223 is illustrated as the circulation guide that prevents stagnation of water.
- the heat exchanger having the circulation guide includes a heat exchanger body 210 having a water chamber 210 a formed inside thereof, a top body tube 220 installed at a top end of the heat exchanger body 210 and having a fire chamber 220 a formed inside thereof, a bottom end plate 230 that closes a bottom end of the heat exchanger body 210 , and a combustion pipe 240 through which a combustion gas at a high temperature is discharged.
- the present invention includes the spiral guide 223 disposed at sidewalls 221 of the top body tube 220 , unlike in the related art, so that a stagnation phenomenon, such as an eddy or a counter current, is prevented from occurring locally in the water chamber 210 a inside the heat exchanger body 210 .
- the heat exchanger body 210 has the water chamber 210 a that is a space portion in which water flows, formed inside thereof.
- the heat exchanger body 210 has a cylindrical shape, for example, and the entire inside thereof is used as the water chamber 210 a.
- an inlet port IN through which the supply of water occurs, is installed to be connected to the bottom end of the heat exchanger body 210
- a discharge port OUT through which water is discharged from the water chamber 210 a, is installed to be connected to the top end of the heat exchanger body 210 .
- direct water at a low temperature or heating circulation water is introduced into the water chamber 210 a inside the heat exchanger body 210 through the inlet port IN, and the introduced direct water or heating circulation water is heated by heat-exchanging and then is discharged through the discharge port OUT.
- the water discharged through the discharge port OUT is used as hot water or heating water.
- the top body tube 220 is installed at a top end of an inside of the heat exchanger body 210 and covers the top end of the opened heat exchanger body 210 .
- the top body tube 220 includes cylindrical sidewalls 221 and a floor surface 222 disposed at a lower portion of the top body tube 220 .
- the fire chamber 220 a is provided in an inside space of the top body tube 220 surrounded by the sidewalls 221 and the floor surface 222 .
- a burner (see 151 of FIG. 1 ) is installed at an upper portion of the opened fire chamber 220 a to spout out flames and a combustion gas at a high temperature generated in the burner in a downward direction.
- the sidewalls 221 of the top body tube 220 are spaced apart from each other inwardly from an inner circumferential surface of the heat exchanger body 210 .
- water introduced into a space therebetween is discharged to the outside through the discharge port OUT.
- the floor surface 222 of the top body tube 220 serves as a top end plate that closes the upper portion of the heat exchanger body 210 .
- a plurality of assembly holes are formed through the floor surface 222 of the top body tube 220 so that a top end of the combustion pipe 240 is inserted into the top body tube 220 through the plurality of assembly holes.
- the bottom end plate 230 is installed at a bottom end of the inside of the heat exchanger body 210 and closes the bottom end of the opened heat exchanger body 210 .
- a plurality of assembly holes are also formed through the bottom end plate 230 so that a bottom end of the combustion pipe 240 is inserted into the bottom end plate 230 through the plurality of assembly holes.
- the number of the assembly holes formed in the bottom end plate 230 is the same as that of the assembly holes formed in the floor surface 222 of a top end plate, and positions thereof are the same as those of the assembly holes formed in the floor surface 222 of the top end plate.
- the combustion pipe 240 is coupled between the floor surface 222 of the top body tube 220 and the bottom end plate 230 , which are disposed in parallel in the vertical direction, so that the combustion gas generated in the fire chamber 220 a passes through the combustion pipe 240 and is discharged to the outside.
- the combustion pipe 240 is used as a path on which the combustion gas at the high temperature is discharged, and a plurality of combustion pipes 240 are provided to smoothly discharge the combustion gas spouted out to the fire chamber 220 a, and the plurality of combustion pipes 240 are spaced apart from each other and increase a heat-exchanging surface area within the water chamber 210 a.
- top ends of the plurality of combustion pipes 240 are connected to each other to pass through the floor surface 222 of the top body tube 220 , and bottom ends of the plurality of combustion pipes 240 are connected to each other to pass through the bottom end plate 230 .
- the combustion gas at the high temperature introduced via the fire chamber 220 a is discharged, and in this procedure, the combustion gas at the high temperature heat-exchanges with water filled in the water chamber 210 a.
- heat-exchanging fins are disposed on inner circumferential surfaces of the combustion pipes 240 so as to improve heat-exchanging efficiency between the combustion gas and water.
- the spiral guide 223 is installed at inner circumferential surfaces of the sidewalls 221 that constitute the top body tube 220 .
- the spiral guide 223 prevents water from stagnating in the water chamber 210 a inside the heat exchanger body 210 .
- the spiral guide 223 is formed at the inner circumferential surfaces of the sidewalls 221 to have a spiral shape that circles in a height direction.
- the spiral guide 223 protrudes from the sidewalls 221 inwardly by a predetermined length.
- a wide flow space (a first space portion) is formed in the lower portion of the top body tube 220 that constitutes the fire chamber 220 a, whereas a narrow flow path (a second space portion) is formed between the sidewalls 221 of the top body tube 220 and the heat exchanger body 210 . Stagnation of water is prevented even in a point where water flows into the first space portion from the second space portion.
- water-boiling noise is prevented from occurring due to water in a stagnation area excessively heated, or heat-exchanging efficiency is prevented from being lowered due to foreign substances, such as lime, generated in the stagnation area, or a temperature difference is prevented from occurring in hot water or heating water.
- ends of the spiral guide 223 in a protrusion direction thereof are in contact with the inner circumferential surface of the heat exchanger body 210 .
- water passes through the spiral guide 223 , and water spirals with a larger force.
- the heat exchanger having the circulation guide according to the second embodiment of the present invention is characterized by further including a plate-shaped guide in addition to the above-described spiral guide as the circulation guide for preventing stagnation of water.
- the heat exchanger having the circulation guide also includes a heat exchanger body 210 having a water chamber 210 a, a top body tube 220 having a fire chamber 220 a formed inside thereof, a bottom end plate 230 that closes a bottom end of the heat exchanger body 210 , and a combustion pipe 240 through which a combustion gas at a high temperature is discharged.
- top body tube 220 includes sidewalls 221 and a floor surface 222 , and a spiral guide 223 is installed at the sidewalls 221 of the top body tube 220 .
- a spiral guide 223 is installed at the sidewalls 221 of the top body tube 220 .
- direct water or heating circulation water supplied to the water chamber 210 a inside the heat exchanger body 210 through an inlet port IN passes through an inside of the water chamber 210 a and is discharged through a discharge port OUT.
- stagnation of water is prevented by the spiral guide 223 .
- the heat exchanger having the circulation guide according to the second embodiment of the present invention further includes a plate-shaped guide 250 , and the plate-shaped guide 250 is assembled to be passed through by the combustion pipe 240 inside the heat exchanger body 210 and closes a part of the water chamber 210 a of the heat exchanger body 210 to force the flow of water to be changed.
- the purpose of forcing the flow of water to be changed by the plate-shaped guide 250 is, firstly, to prevent stagnation of water from occurring locally in a particular area of the water chamber 210 a, and secondly, to allow water to be uniformly distributed into the water chamber 210 a to improve heat-exchanging efficiency.
- one or a plurality of plate-shaped guides 250 capable of achieving at least the two purposes may be used, and an installation position thereof is also properly selected according to the shape of the heat exchanger body 210 .
- the plate-shaped guide 250 includes a plurality of sub-guides 250 - 1 and 250 - 2 , and the plurality of sub-guides 250 - 1 and 250 - 2 are installed in the heat exchanger body 210 in a height direction to be spaced apart from each other.
- the plate-shaped guide 250 includes two sub-guides 250 - 1 and 250 - 2 .
- the two sub-guides 250 - 1 and 250 - 2 include a central side flow guide 250 - 1 and a peripheral side flow guide 250 - 2 .
- the central side flow guide 250 - 1 is installed to extend from the center of the heat exchanger body 210 outwardly by a predetermined length. Thus, water flows through an outside periphery of the water chamber 210 a having no central side flow guide 250 - 1 formed inside thereof.
- the central side flow guide 250 - 1 has a shape of a disc having a smaller diameter than that of the water chamber 210 a, and a plurality of first assembly holes 250 - 1 a through which combustion pipes 240 are inserted into and assembled to the central side flow guide 250 - 1 , are formed in the central side flow guide 250 - 1 .
- the number and position of the plurality of first assembly holes 250 - 1 a are the same as those of the combustion pipes 240 that pass through the central side flow guide 250 - 1 among the plurality of combustion pipes 240 .
- peripheral side flow guide 250 - 2 is installed to extend from an inner circumferential surface of the heat exchanger body 210 inwardly by a predetermined length.
- water flows through a central side 250 - 2 b of the water chamber 210 a having no peripheral side flow guide 250 - 2 formed inside thereof.
- the peripheral side flow guide 250 - 2 has a shape of a disc having the same diameter as that of the water chamber 210 a, and a plurality of second assembly holes 250 - 2 a through which the combustion pipes 240 are inserted into the peripheral side flow guide 250 - 2 , are formed in the periphery of the peripheral side flow guide 250 - 2 .
- a flow hole 250 - 2 b through which water passes, is formed in the center of the peripheral side flow guide 250 - 2 .
- the above-described peripheral side flow guide 250 - 2 is installed above the central side flow guide 250 - 1 .
- the plate-shaped guide 250 causes a change in the flow of water supplied by a pump so that stagnation of water is prevented from occurring in a local area of the water chamber 210 a.
- the plate-shaped guide 250 installed at the inlet port IN guides water to the spiral guide 223 .
- stagnation of water is further prevented.
- the heat exchanger including the circulation guide includes a heat exchanger body 210 , an inlet port IN, an outlet port OUT, a top body tube 220 , a spiral guide 223 , a combustion pipe 240 , and a plate-shaped guide 250 .
- a water chamber 210 a is provided in the heat exchanger body 210 .
- the inlet port IN is formed on an outer periphery of a bottom end of the heat exchanger body 210 , so that water is supplied into the water chamber 210 a of the heat exchanger.
- the outlet port OUT is formed on an outer periphery of an upper end of the heat exchanger body 210 , so that water having passed through the water chamber 210 a is discharged.
- the outlet port OUT and the inlet port IN may be disposed to be spaced apart from each other in an outer circumferential direction of the heat exchanger body 210 .
- At least a portion of the top body tube 220 is installed by being inserted to an upper end portion of the heat exchanger body 210 .
- a fire chamber 220 a is formed inside the top body tube 220 .
- an end of the top body tube 220 is supported at an upper end of the heat exchanger body 210 , and a region of an outer periphery of the top body tube 220 may be spaced apart from an inner circumferential surface of the heat exchanger body 210 .
- a heat source such as a flame and high-temperature combustion gas is supplied to the fire chamber 220 a.
- a spiral guide 223 is installed at an outer periphery of the top body tube 220 to guide water introduced through the inlet port IN to be discharged to the outlet port OUT without stagnation.
- the spiral guide 223 may be spirally disposed along a circumferential direction of the top body tube 220 on a sidewall 22 f 1 of the top body tube 220 spaced apart from the inner circumferential surface of the heat exchanger body 210 .
- the spiral guide 223 may protrude from the sidewall 221 of the top body tube 220 . Accordingly, when the top body tube 220 is installed at the heat exchanger body 210 , the top body tube 220 in which the spiral guide 223 is installed may be easily assembled.
- the water introduced into the water chamber 210 a may spirally move along the spiral guide 223 to move to the outlet port OUT.
- the water introduced from the inlet port IN which is formed at a lower position than the outlet port OUT whirls to be discharged through the outlet port OUT, it serves to suck in and draw in the water flowing below the top body tube 220 , thereby preventing stagnation such as vortex or countercurrent from occurring in the water chamber 210 a of the heat exchanger body 210 .
- a plurality of combustion pipes 240 are spaced apart from each other in the heat exchanger body 210 and are disposed below a floor surface 222 of the top body tube 220 .
- the combustion pipe 240 communicates with the fire chamber 220 a of the top body tube 220 to guide the flame and high-temperature combustion gas to move. That is, a plurality of assembling holes are formed in the floor surface 222 of the top body tube 220 so that a top end of the combustion pipe 240 is fitted and assembled thereto.
- the combustion pipe 240 is disposed in the water chamber 210 a in a direction parallel to the heat exchanger body 210 . Accordingly, water introduced through the inlet port IN may be heated through heat exchange with the flame or combustion gas passing through the combustion pipe 240 .
- a plate-shaped guide 250 may be formed in the same manner as the plate-shaped guide 250 of 250 including the circulation guide according to the second embodiment of the present invention described above.
- the plate-shaped guide 250 may be assembled so that the combustion pipe 240 passes therethrough and may block a portion of the water chamber 210 a of the heat exchanger body 210 to forcibly change the flow of water and prevent stagnation of water in a specific area within the water chamber 210 a.
- the plate-shaped guide 250 may be spaced apart from the floor surface 222 of the top body tube 220 along a longitudinal direction of the combustion pipe 240 .
- the plate-shaped guide 250 may include a plurality of sub-guides 250 - 1 and 250 - 2 , and the plurality of sub-guides 250 - 1 and 250 - 2 may be spaced apart from each other in the water chamber 210 a.
- One of the plurality of sub-guides 250 - 1 and 250 - 2 that is adjacent to the floor surface 222 of the top body tube 220 is spaced apart from the floor surface 222 of the top body tube 220 by a distance D in a range of 15 mm to 20 mm.
- a boiling noise e.g., water boiling noise
- the heat exchanger including the circulation guide according to the third embodiment of the present invention may effectively reduce noise generated by excessive heating of water in a local area that may occur due to stagnation of water in the water chamber 210 a.
- the problem of a decrease in heat exchange efficiency which may occur as lime is generated inside the heat exchanger due to water stagnation may be effective reduced.
- the plurality of sub-guides 250 - 1 and 250 - 2 may include a central side flow guide 250 - 1 and a peripheral side flow guide 250 - 2 .
- the peripheral side flow guide 250 - 2 adjacent to the floor surface 222 of the top body tube 220 may be spaced apart from the floor surface 222 of the top body tube 220 by a distance D in a range of 15 mm to 20 mm.
- the peripheral side flow guide 250 - 2 may disposed to have a distance in a range of 15 mm to 20 mm from a surface of the floor surfaces 222 of the top body tube 220 that is adjacent to the sidewall 221 of the top body tube 220 .
- peripheral side flow guide 250 - 2 and the floor surface 222 of the top body tube 220 may be arranged in parallel (e.g., side by side).
- the central side flow guide 250 - 1 may be spaced apart from the peripheral side flow guide 250 - 2 in a longitudinal direction of the combustion pipe 240 .
- the central side flow guide 250 - 1 may be penetrated and supported by the combustion pipe 240 to include at least an area that is not covered by the peripheral side flow guide 250 - 2 , thereby changing the flow of water in the water chamber 210 a and preventing water stagnation.
- the central side flow guide 250 - 1 may be disposed relatively adjacent to the inlet port IN than the peripheral side flow guide 250 - 2 is thereto.
- the heat exchanger including the circulation guide according to the third embodiment of the present invention may include a bottom end plate 230 included in the heat exchanger including the circulation guide according to the first and second embodiments described above.
- configurations of the heat exchanger including the circulation guide according to the third embodiment of the present invention that have the same reference numerals as those of the heat exchanger including the circulation guide according to the second embodiment of the present invention may be provided for the same configuration and for the same purpose except a position of the inlet port IN, a shape of the floor surface 222 of the top body tube 220 , and a specific distance between the top body tube 220 and the peripheral side flow guide 250 - 2 of the heat exchanger including the circulation guide according to the second embodiment of the present invention.
- the water introduced into the water chamber 210 a from the inlet port IN is heated while heat is exchanged by the combustion pipe 240 and moves through an outer periphery of the water chamber 210 a without the central side flow guide 250 - 1 .
- the flow of water changes while the water passes through a region without the central side flow guide 250 - 1 in the water chamber 210 a, and the water moves through a flow hole 250 - 2 b formed in the peripheral side flow guide 250 - 2 .
- the water having passed through the flow hole 250 - 2 b moves toward a direction of the sidewall 221 of the top body tube 220 through a space between the peripheral side flow guide 250 - 2 and the floor surface 222 of the top body tube 220 . That is, the water having passed through the flow hole 250 - 2 b may pass through the distance in a range of 15 mm to 20 mm between the peripheral side flow guide 250 - 2 and the floor surface 222 of the top body tube 220 to move toward the sidewall 221 of the top body tube 220 .
- the water moves into a space between the sidewall 221 of the top body tube 220 and an inside of the heat exchanger body 210 .
- the spiral guide 223 may guide the water to move spirally along the outer circumferential surface of the top body tube 220 having a relatively higher temperature than the combustion pipe 240 , thereby preventing stagnation of the water and effectively providing a path for heat exchange of the water.
- the spiral guide 223 may prevent stagnation of the heated water discharged through the outlet port OUT, thereby effectively reducing noise generated by water being boiled locally.
- the spiral guide 223 may effectively provide a path for heating water through heat exchange with the flame or high-temperature combustion gas introduced into the fire chamber 220 a.
- the embodiment of the present invention specifically represents an ideal embodiment of the present invention. As a result, various modifications of the diagram are expected. Therefore, the embodiment is not limited to a specific shape of the illustrated area, and includes, for example, a shape modification by manufacturing.
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Abstract
A heat exchanger having a circulation guide, the heat exchanger comprising: a heat exchanger body; an inlet port, which is connected to a bottom end of the heat exchanger body; a discharge port which is connected to a top end of the heat exchanger body; a top body tube installed at a top end of an inside of the heat exchanger body; a bottom end plate installed at a bottom end of the inside of the heat exchanger body; and combustion pipes, which each have a top end connected to pass through a floor surface of the top body tube.
Description
- This application is a continuation-in-part of U.S. patent application Ser. No. 15/306,326, filed on Nov. 4, 2016, which is a U.S. National Phase Patent Application of International Patent Application No. PCT/KR2015/003962, filed on Apr. 21, 2015, which claims the benefit of priority to Korean Patent Application No. 10-2014-0047842, filed on Apr. 22, 2014. The disclosures of the above-listed applications are hereby incorporated by reference herein in their entirety.
- The present invention relates to a heat exchanger having a circulation guide and, more particularly, to a heat exchanger having a circulation guide, which induces circulation to prevent water exchanging heat with a combustion gas at a high temperature from stagnating.
- In particular, the present invention relates to a heat exchanger having a circulation guide, which includes a spiral guide disposed on the side of a discharge port to force water to be introduced to a discharge side and a plate-shaped guide disposed on the side of an inlet port to force water to be supplied to the discharge side.
- In general, a boiler used in a home, an office, a factory, and various types of public buildings, includes a burner for supplying a heat source (flames and a combustion gas at a high temperature) and a heat exchanger that performs heat-exchanging between the heat source supplied by the burner and water. For example, a boiler disclosed in Korean Patent Laid-open Publication No. 2013-0085090, as illustrated in
FIGS. 1 and 2 , includes acombustion device 150 having ablower fan 152 and afuel suction port 153 in addition to aburner 151, and a heat exchanger installed below thecombustion device 150. - The heat exchanger includes a
boiler casing 110, awater tank 120, atop end plate 121, abottom end plate 122, and acombustion pipe 130. In this case, water supplied via a direct water supply pipe 112 a passes through thewater tank 120 corresponding to a water chamber and then is discharged to adischarge pipe 112 b. - Thus, a heat source, such as flames and a combustion gas at a high temperature, is supplied by the
burner 151 connected to afire chamber 111, and the combustion gas heats water while passing through thecombustion pipe 130. The combustion gas of which heat is dissipated due to water, is discharged to the outside via adischarge portion 140. - However, in the above-described related art, while water supplied via the direct water supply pipe 112 a passes through the
water tank 120, stagnation, such as an eddy or a counter current, occurs in a particular portion of thewater tank 120. - In particular, a wide flow space (a first space portion) is formed in a lower portion of the
top end plate 121 that constitutes thefire chamber 111, whereas a narrow flow path (a second space portion) is formed between sidewalls of thefire chamber 111 and theboiler casing 110, so that severe stagnation occurs in a section in which water is introduced from the second space portion to the first space portion. - Thus, when water is excessively heated in a local area where stagnation occurs, water-boiling noise (i.e., boiling noise) occurs, and foreign substances, such as lime, are generated in the stagnation area and are attached thereto, heat-exchanging efficiency with the heat source is lowered, and a wobble phenomenon (i.e., ±temperature difference) of temperature of hot water or heating water being supplied occurs.
- The present invention is directed to providing a heat exchanger having a circulation guide, which induces circulation to prevent water exchanging heat with a combustion gas at a high temperature from stagnating.
- One aspect of the present invention provides a heat exchanger including a circulation guide, including: a heat exchanger body (210) including therein a water chamber (210 a); a top body tube (220) including therein a fire chamber (220 a), installed at a top end of an inside of the heat exchanger body (210), and including a sidewall (221) of which at least a portion is spaced apart from an inner circumferential surface of the heat exchanger body (210); an inlet port (IN) formed at a bottom end of the heat exchanger body (210) and allowing water to be supplied therethrough to the
water chamber 210 a; an outlet port (OUT) connected to a top end of the heat exchanger body (210) and allowing the water that is heated while passing through the water chamber (210 a) to be discharged therethrough; a spiral guide (223) formed at the sidewall (221) of the top body tube (220) in a spiral direction and guiding the water having passed through the water chamber (210 a) to be discharged to the outlet port (OUT) without stagnation; and a plate-shaped guide (250) including a peripheral side flow guide (250-2) penetrated and supported by at least some of a plurality of combustion pipes (240), blocking a portion of the water chamber (210 a) of the heat exchanger body (210) to change flow of the water forcibly, and spaced apart from a floor surface (222) of the top body tube (220) by a distance in a range of 15 mm to 20 mm. - In some embodiments, the plate-shaped guide (250) may further include a central side flow guide (250-1) space apart from the peripheral side flow guide (250-2) in a longitudinal direction of the plurality of combustion pipes (240) and disposed relatively adjacent to the inlet port (IN) than the peripheral side flow guide (250-2) is thereto.
- In some embodiments, the central side flow guide (250-1) may be installed to extend from a center of the heat exchanger body (210) outwardly by a predetermined length.
- In some embodiments, the peripheral side flow guide (250-2) may be installed to extend from an inner circumferential surface of the heat exchanger body (210) inwardly by a predetermined length.
- In some embodiments, the floor surface (222) of the top body tube (220) may be adjacent to the sidewall (221) of the top body tube (220).
- In some embodiments, the peripheral side flow guide (250-2) and the floor surface (222) of the top body tube (220) may be disposed in parallel to each other.
- In some embodiments, the plurality of combustion pipes (240) may be connected so that a top end of each of the plurality of combustion pipes (240) passes through the floor surface (222) of the top body tube (220) and guide flow of a high-temperature combustion gas introduced through the
fire chamber 220 a. -
FIG. 1 is a cross-sectional view of a boiler according to the related art. -
FIG. 2 is a perspective view of a heat exchanger of the boiler according to the related art. -
FIG. 3 is a cross-sectional view of a heat exchanger having a circulation guide according to a first embodiment of the present invention. -
FIG. 4 is a perspective view of a spiral guide according to the first embodiment of the present invention. -
FIG. 5 is a cross-sectional view of a heat exchanger having a circulation guide according to a second embodiment of the present invention. -
FIG. 6 is a plan view of a plate-shaped guide according to the second embodiment of the present invention. -
FIG. 7 is a front cross-sectional view illustrating a heat exchanger including a circulation guide according to a third embodiment of the present invention. - Hereinafter, Hereinafter, a heat exchanger having a circulation guide according to exemplary embodiments of the present invention will be described with the accompanying drawings in detail.
- However, hereinafter, a downward type in which a burner is installed at an upper side to spout out flames in a downward direction, will be illustrated, but the present invention may be applied to an upward type, and it is obvious that up and down directions can be freely changed depending on the downward type or the upward type.
- First, as illustrated in
FIG. 3 , in a heat exchanger having a circulation guide according to a first embodiment of the present invention, aspiral guide 223 is illustrated as the circulation guide that prevents stagnation of water. - Meanwhile, the heat exchanger having the circulation guide according to the present invention includes a
heat exchanger body 210 having awater chamber 210 a formed inside thereof, atop body tube 220 installed at a top end of theheat exchanger body 210 and having afire chamber 220 a formed inside thereof, abottom end plate 230 that closes a bottom end of theheat exchanger body 210, and acombustion pipe 240 through which a combustion gas at a high temperature is discharged. - In particular, the present invention includes the
spiral guide 223 disposed atsidewalls 221 of thetop body tube 220, unlike in the related art, so that a stagnation phenomenon, such as an eddy or a counter current, is prevented from occurring locally in thewater chamber 210 a inside theheat exchanger body 210. - In more detail, the
heat exchanger body 210 has thewater chamber 210 a that is a space portion in which water flows, formed inside thereof. Theheat exchanger body 210 has a cylindrical shape, for example, and the entire inside thereof is used as thewater chamber 210 a. - In addition, an inlet port IN through which the supply of water occurs, is installed to be connected to the bottom end of the
heat exchanger body 210, and a discharge port OUT through which water is discharged from thewater chamber 210 a, is installed to be connected to the top end of theheat exchanger body 210. - Thus, direct water at a low temperature or heating circulation water is introduced into the
water chamber 210 a inside theheat exchanger body 210 through the inlet port IN, and the introduced direct water or heating circulation water is heated by heat-exchanging and then is discharged through the discharge port OUT. The water discharged through the discharge port OUT is used as hot water or heating water. - The
top body tube 220 is installed at a top end of an inside of theheat exchanger body 210 and covers the top end of the openedheat exchanger body 210. To this end, thetop body tube 220 includescylindrical sidewalls 221 and afloor surface 222 disposed at a lower portion of thetop body tube 220. - Thus, the
fire chamber 220 a is provided in an inside space of thetop body tube 220 surrounded by thesidewalls 221 and thefloor surface 222. A burner (see 151 ofFIG. 1 ) is installed at an upper portion of the openedfire chamber 220 a to spout out flames and a combustion gas at a high temperature generated in the burner in a downward direction. - In addition, the
sidewalls 221 of thetop body tube 220 are spaced apart from each other inwardly from an inner circumferential surface of theheat exchanger body 210. Thus, water introduced into a space therebetween is discharged to the outside through the discharge port OUT. - In addition, the
floor surface 222 of thetop body tube 220 serves as a top end plate that closes the upper portion of theheat exchanger body 210. A plurality of assembly holes are formed through thefloor surface 222 of thetop body tube 220 so that a top end of thecombustion pipe 240 is inserted into thetop body tube 220 through the plurality of assembly holes. - The
bottom end plate 230 is installed at a bottom end of the inside of theheat exchanger body 210 and closes the bottom end of the openedheat exchanger body 210. - In addition, a plurality of assembly holes are also formed through the
bottom end plate 230 so that a bottom end of thecombustion pipe 240 is inserted into thebottom end plate 230 through the plurality of assembly holes. - The number of the assembly holes formed in the
bottom end plate 230 is the same as that of the assembly holes formed in thefloor surface 222 of a top end plate, and positions thereof are the same as those of the assembly holes formed in thefloor surface 222 of the top end plate. - Thus, the
combustion pipe 240 is coupled between thefloor surface 222 of thetop body tube 220 and thebottom end plate 230, which are disposed in parallel in the vertical direction, so that the combustion gas generated in thefire chamber 220 a passes through thecombustion pipe 240 and is discharged to the outside. - The
combustion pipe 240 is used as a path on which the combustion gas at the high temperature is discharged, and a plurality ofcombustion pipes 240 are provided to smoothly discharge the combustion gas spouted out to thefire chamber 220 a, and the plurality ofcombustion pipes 240 are spaced apart from each other and increase a heat-exchanging surface area within thewater chamber 210 a. - In this case, top ends of the plurality of
combustion pipes 240 are connected to each other to pass through thefloor surface 222 of thetop body tube 220, and bottom ends of the plurality ofcombustion pipes 240 are connected to each other to pass through thebottom end plate 230. Thus, the combustion gas at the high temperature introduced via thefire chamber 220 a is discharged, and in this procedure, the combustion gas at the high temperature heat-exchanges with water filled in thewater chamber 210 a. - However, heat-exchanging fins (see 130 a of
FIG. 2 ), as known fromFIG. 2 , are disposed on inner circumferential surfaces of thecombustion pipes 240 so as to improve heat-exchanging efficiency between the combustion gas and water. - Meanwhile, as known from (a) and (b) of
FIG. 4 in more detail, thespiral guide 223 is installed at inner circumferential surfaces of thesidewalls 221 that constitute thetop body tube 220. Thespiral guide 223 prevents water from stagnating in thewater chamber 210 a inside theheat exchanger body 210. - To this end, the
spiral guide 223 is formed at the inner circumferential surfaces of thesidewalls 221 to have a spiral shape that circles in a height direction. In this case, thespiral guide 223 protrudes from thesidewalls 221 inwardly by a predetermined length. - Thus, when water (i.e., direct water or heating circulation water) introduced through the inlet port IN due to an operation of a pump flows in an upward direction and inflow of the water occurs in a narrow flow path formed between the
heat exchanger body 210 and thesidewalls 221 of the top end plate, the water spirals due to thespiral guide 223. - In addition, when the water is discharged through the discharge port OUT while spiraling due to the
spiral guide 223, flowing water is sucked and drawn from the lower portion of thetop body tube 220 so that stagnation, such as an eddy or a counter current, does not occur in thewater chamber 210 a of theheat exchanger body 210. - In particular, a wide flow space (a first space portion) is formed in the lower portion of the
top body tube 220 that constitutes thefire chamber 220 a, whereas a narrow flow path (a second space portion) is formed between thesidewalls 221 of thetop body tube 220 and theheat exchanger body 210. Stagnation of water is prevented even in a point where water flows into the first space portion from the second space portion. - Thus, water-boiling noise is prevented from occurring due to water in a stagnation area excessively heated, or heat-exchanging efficiency is prevented from being lowered due to foreign substances, such as lime, generated in the stagnation area, or a temperature difference is prevented from occurring in hot water or heating water.
- However, preferably, ends of the
spiral guide 223 in a protrusion direction thereof are in contact with the inner circumferential surface of theheat exchanger body 210. Thus, water passes through thespiral guide 223, and water spirals with a larger force. - Hereinafter, a heat exchanger having a circulation guide according to a second embodiment of the present invention will be described. The heat exchanger having the circulation guide according to the second embodiment of the present invention is characterized by further including a plate-shaped guide in addition to the above-described spiral guide as the circulation guide for preventing stagnation of water.
- As illustrated in
FIG. 5 , the heat exchanger having the circulation guide according to the second embodiment of the present invention also includes aheat exchanger body 210 having awater chamber 210 a, atop body tube 220 having afire chamber 220 a formed inside thereof, abottom end plate 230 that closes a bottom end of theheat exchanger body 210, and acombustion pipe 240 through which a combustion gas at a high temperature is discharged. - In addition, the
top body tube 220 includessidewalls 221 and afloor surface 222, and aspiral guide 223 is installed at thesidewalls 221 of thetop body tube 220. These configurations are the same as those of the first embodiment of the present invention. - Thus, direct water or heating circulation water supplied to the
water chamber 210 a inside theheat exchanger body 210 through an inlet port IN passes through an inside of thewater chamber 210 a and is discharged through a discharge port OUT. During discharge, stagnation of water is prevented by thespiral guide 223. - Furthermore, flames and the combustion gas spout out via a burner connected to the
top body tube 220, and the combustion gas is discharged to the outside through thecombustion pipe 240. Thus, direct water or heating circulation water supplied to thewater chamber 210 a heat-exchanges with the flames and the combustion gas and is heated, and heated water is supplied as hot water or heating water. - Meanwhile, the heat exchanger having the circulation guide according to the second embodiment of the present invention further includes a plate-shaped
guide 250, and the plate-shapedguide 250 is assembled to be passed through by thecombustion pipe 240 inside theheat exchanger body 210 and closes a part of thewater chamber 210 a of theheat exchanger body 210 to force the flow of water to be changed. - The purpose of forcing the flow of water to be changed by the plate-shaped
guide 250 is, firstly, to prevent stagnation of water from occurring locally in a particular area of thewater chamber 210 a, and secondly, to allow water to be uniformly distributed into thewater chamber 210 a to improve heat-exchanging efficiency. - Thus, one or a plurality of plate-shaped
guides 250 capable of achieving at least the two purposes may be used, and an installation position thereof is also properly selected according to the shape of theheat exchanger body 210. - However, it is obvious that a plurality of plate-shaped
guides 250 are used rather than one plate-shapedguide 250 so that the above two purposes will be more securely satisfied. Thus, the plate-shapedguide 250 includes a plurality of sub-guides 250-1 and 250-2, and the plurality of sub-guides 250-1 and 250-2 are installed in theheat exchanger body 210 in a height direction to be spaced apart from each other. - In
FIG. 5 , the plate-shapedguide 250 includes two sub-guides 250-1 and 250-2. The two sub-guides 250-1 and 250-2 include a central side flow guide 250-1 and a peripheral side flow guide 250-2. - The central side flow guide 250-1 is installed to extend from the center of the
heat exchanger body 210 outwardly by a predetermined length. Thus, water flows through an outside periphery of thewater chamber 210 a having no central side flow guide 250-1 formed inside thereof. - To this end, as shown (a) of
FIG. 6 , the central side flow guide 250-1 has a shape of a disc having a smaller diameter than that of thewater chamber 210 a, and a plurality of first assembly holes 250-1 a through whichcombustion pipes 240 are inserted into and assembled to the central side flow guide 250-1, are formed in the central side flow guide 250-1. The number and position of the plurality of first assembly holes 250-1 a are the same as those of thecombustion pipes 240 that pass through the central side flow guide 250-1 among the plurality ofcombustion pipes 240. - In addition, the peripheral side flow guide 250-2 is installed to extend from an inner circumferential surface of the
heat exchanger body 210 inwardly by a predetermined length. Thus, water flows through a central side 250-2 b of thewater chamber 210 a having no peripheral side flow guide 250-2 formed inside thereof. - To this end, as shown in (b) of
FIG. 6 , the peripheral side flow guide 250-2 has a shape of a disc having the same diameter as that of thewater chamber 210 a, and a plurality of second assembly holes 250-2 a through which thecombustion pipes 240 are inserted into the peripheral side flow guide 250-2, are formed in the periphery of the peripheral side flow guide 250-2. In addition, a flow hole 250-2 b through which water passes, is formed in the center of the peripheral side flow guide 250-2. However, preferably, the above-described peripheral side flow guide 250-2 is installed above the central side flow guide 250-1. - When water passes through the periphery of the
water chamber 210 a due to the central side flow guide 250-1 disposed below the peripheral side flow guide 250-2 and then passes through the center (i.e., the flow hole) of the peripheral side flow guide 250-2 disposed above the central side flow guide 250-1, water circulates, and a direction of water changes into the periphery of thewater chamber 210 a. This is because water is naturally guided to a portion where thespiral guide 223 is installed. - As described above, the plate-shaped
guide 250 causes a change in the flow of water supplied by a pump so that stagnation of water is prevented from occurring in a local area of thewater chamber 210 a. - Furthermore, as water spirals due to the
spiral guide 223 installed at the discharge port OUT, in a state in which a suction force is applied to water below thespiral guide 223, the plate-shapedguide 250 installed at the inlet port IN guides water to thespiral guide 223. Thus, stagnation of water is further prevented. - Hereinafter, a heat exchanger including a circulation guide according to a third embodiment of the present invention will be described with reference to
FIG. 7 . - The heat exchanger including the circulation guide according to the third embodiment of the present invention includes a
heat exchanger body 210, an inlet port IN, an outlet port OUT, atop body tube 220, aspiral guide 223, acombustion pipe 240, and a plate-shapedguide 250. - A
water chamber 210 a is provided in theheat exchanger body 210. - The inlet port IN is formed on an outer periphery of a bottom end of the
heat exchanger body 210, so that water is supplied into thewater chamber 210 a of the heat exchanger. - The outlet port OUT is formed on an outer periphery of an upper end of the
heat exchanger body 210, so that water having passed through thewater chamber 210 a is discharged. Specifically, the outlet port OUT and the inlet port IN may be disposed to be spaced apart from each other in an outer circumferential direction of theheat exchanger body 210. - At least a portion of the
top body tube 220 is installed by being inserted to an upper end portion of theheat exchanger body 210. In addition, afire chamber 220 a is formed inside thetop body tube 220. In addition, an end of thetop body tube 220 is supported at an upper end of theheat exchanger body 210, and a region of an outer periphery of thetop body tube 220 may be spaced apart from an inner circumferential surface of theheat exchanger body 210. - Specifically, a heat source such as a flame and high-temperature combustion gas is supplied to the
fire chamber 220 a. - A
spiral guide 223 is installed at an outer periphery of thetop body tube 220 to guide water introduced through the inlet port IN to be discharged to the outlet port OUT without stagnation. Specifically, thespiral guide 223 may be spirally disposed along a circumferential direction of thetop body tube 220 on a sidewall 22 f 1 of thetop body tube 220 spaced apart from the inner circumferential surface of theheat exchanger body 210. - For example, the
spiral guide 223 may protrude from thesidewall 221 of thetop body tube 220. Accordingly, when thetop body tube 220 is installed at theheat exchanger body 210, thetop body tube 220 in which thespiral guide 223 is installed may be easily assembled. - That is, the water introduced into the
water chamber 210 a may spirally move along thespiral guide 223 to move to the outlet port OUT. In other words, when the water introduced from the inlet port IN which is formed at a lower position than the outlet port OUT whirls to be discharged through the outlet port OUT, it serves to suck in and draw in the water flowing below thetop body tube 220, thereby preventing stagnation such as vortex or countercurrent from occurring in thewater chamber 210 a of theheat exchanger body 210. - A plurality of
combustion pipes 240 are spaced apart from each other in theheat exchanger body 210 and are disposed below afloor surface 222 of thetop body tube 220. In addition, thecombustion pipe 240 communicates with thefire chamber 220 a of thetop body tube 220 to guide the flame and high-temperature combustion gas to move. That is, a plurality of assembling holes are formed in thefloor surface 222 of thetop body tube 220 so that a top end of thecombustion pipe 240 is fitted and assembled thereto. - Specifically, the
combustion pipe 240 is disposed in thewater chamber 210 a in a direction parallel to theheat exchanger body 210. Accordingly, water introduced through the inlet port IN may be heated through heat exchange with the flame or combustion gas passing through thecombustion pipe 240. - A plate-shaped
guide 250, as illustrated inFIG. 6 , may be formed in the same manner as the plate-shapedguide 250 of 250 including the circulation guide according to the second embodiment of the present invention described above. - The plate-shaped
guide 250 may be assembled so that thecombustion pipe 240 passes therethrough and may block a portion of thewater chamber 210 a of theheat exchanger body 210 to forcibly change the flow of water and prevent stagnation of water in a specific area within thewater chamber 210 a. - In addition, the plate-shaped
guide 250 may be spaced apart from thefloor surface 222 of thetop body tube 220 along a longitudinal direction of thecombustion pipe 240. Specifically, the plate-shapedguide 250 may include a plurality of sub-guides 250-1 and 250-2, and the plurality of sub-guides 250-1 and 250-2 may be spaced apart from each other in thewater chamber 210 a. - One of the plurality of sub-guides 250-1 and 250-2 that is adjacent to the
floor surface 222 of thetop body tube 220 is spaced apart from thefloor surface 222 of thetop body tube 220 by a distance D in a range of 15 mm to 20 mm. - When the distance between the
floor surface 222 of thetop body tube 220 and the sub-guides 250-1 and 250-2 exceeds 20 mm, there is a problem in that a boiling noise (e.g., water boiling noise) may occur because water is excessively heated in a local region due to stagnation of the water in thewater chamber 210 a. - In addition, when the distance between the
floor surface 222 of thetop body tube 220 and the sub-guides 250-1 and 250-2 is less than 15 mm, there is a problem in that the distance between thefloor surface 222 of thetop body tube 220 and the sub-guides 250-1 and 250-2 is too narrow and it is difficult to expect an effect according to the original installation purpose of the sub-guides 250-1 and 250-2. Specifically, when the distance between thefloor surface 222 of thetop body tube 220 and the sub-guides 250-1 and 250-2 is less than 15 mm, there is a problem in that a space between an upper portion of the sub-guides 250-1 and 250-2 and thefloor surface 222 of thetop body tube 220 is too narrow, thus obstructing the flow of water, and the water passing therethrough may be locally heated. - With such a configuration, the heat exchanger including the circulation guide according to the third embodiment of the present invention may effectively reduce noise generated by excessive heating of water in a local area that may occur due to stagnation of water in the
water chamber 210 a. In the heat exchanger including the circulation guide according to the third embodiment of the present invention, the problem of a decrease in heat exchange efficiency which may occur as lime is generated inside the heat exchanger due to water stagnation may be effective reduced. - In addition, the plurality of sub-guides 250-1 and 250-2 may include a central side flow guide 250-1 and a peripheral side flow guide 250-2.
- The peripheral side flow guide 250-2 adjacent to the
floor surface 222 of thetop body tube 220 may be spaced apart from thefloor surface 222 of thetop body tube 220 by a distance D in a range of 15 mm to 20 mm. Specifically, the peripheral side flow guide 250-2 may disposed to have a distance in a range of 15 mm to 20 mm from a surface of the floor surfaces 222 of thetop body tube 220 that is adjacent to thesidewall 221 of thetop body tube 220. - Specifically, the peripheral side flow guide 250-2 and the
floor surface 222 of thetop body tube 220 may be arranged in parallel (e.g., side by side). - The central side flow guide 250-1 may be spaced apart from the peripheral side flow guide 250-2 in a longitudinal direction of the
combustion pipe 240. In addition, the central side flow guide 250-1 may be penetrated and supported by thecombustion pipe 240 to include at least an area that is not covered by the peripheral side flow guide 250-2, thereby changing the flow of water in thewater chamber 210 a and preventing water stagnation. - Specifically, the central side flow guide 250-1 may be disposed relatively adjacent to the inlet port IN than the peripheral side flow guide 250-2 is thereto.
- In addition, the heat exchanger including the circulation guide according to the third embodiment of the present invention may include a
bottom end plate 230 included in the heat exchanger including the circulation guide according to the first and second embodiments described above. - In addition, configurations of the heat exchanger including the circulation guide according to the third embodiment of the present invention that have the same reference numerals as those of the heat exchanger including the circulation guide according to the second embodiment of the present invention may be provided for the same configuration and for the same purpose except a position of the inlet port IN, a shape of the
floor surface 222 of thetop body tube 220, and a specific distance between thetop body tube 220 and the peripheral side flow guide 250-2 of the heat exchanger including the circulation guide according to the second embodiment of the present invention. - Hereinafter, flow of water in the heat exchanger including the circulation guide according to an embodiment of the present invention will be described with reference to
FIG. 7 . - The water introduced into the
water chamber 210 a from the inlet port IN is heated while heat is exchanged by thecombustion pipe 240 and moves through an outer periphery of thewater chamber 210 a without the central side flow guide 250-1. - In addition, the flow of water changes while the water passes through a region without the central side flow guide 250-1 in the
water chamber 210 a, and the water moves through a flow hole 250-2 b formed in the peripheral side flow guide 250-2. - In addition, the water having passed through the flow hole 250-2 b moves toward a direction of the
sidewall 221 of thetop body tube 220 through a space between the peripheral side flow guide 250-2 and thefloor surface 222 of thetop body tube 220. That is, the water having passed through the flow hole 250-2 b may pass through the distance in a range of 15 mm to 20 mm between the peripheral side flow guide 250-2 and thefloor surface 222 of thetop body tube 220 to move toward thesidewall 221 of thetop body tube 220. - In addition, the water moves into a space between the
sidewall 221 of thetop body tube 220 and an inside of theheat exchanger body 210. - In such a case, the water spirally moves along an outer circumferential surface of the
top body tube 220 by thespiral guide 223 and is discharged through the outlet port OUT. Specifically, thespiral guide 223 may guide the water to move spirally along the outer circumferential surface of thetop body tube 220 having a relatively higher temperature than thecombustion pipe 240, thereby preventing stagnation of the water and effectively providing a path for heat exchange of the water. - That is, the
spiral guide 223 may prevent stagnation of the heated water discharged through the outlet port OUT, thereby effectively reducing noise generated by water being boiled locally. In addition, thespiral guide 223 may effectively provide a path for heating water through heat exchange with the flame or high-temperature combustion gas introduced into thefire chamber 220 a. - Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.
- It is noted that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. And the same reference numerals are used to indicate like features to the same structural element or part appearing in two or more drawings.
- The embodiment of the present invention specifically represents an ideal embodiment of the present invention. As a result, various modifications of the diagram are expected. Therefore, the embodiment is not limited to a specific shape of the illustrated area, and includes, for example, a shape modification by manufacturing.
-
- 210: Heat exchanger body
- 210 a: Water chamber
- 220: Top body tube
- 220 a: Fire chamber
- 221: Sidewall
- 222: Floor surface
- 223: Spiral guide
- 230: Bottom end plate
- 240: Combustion pipe
- 250: Plate-shaped guides
- 250-1: Central side flow guide
- 250-2: Peripheral side flow guide
Claims (7)
1. A heat exchanger including a circulation guide, the heat exchanger comprising:
a heat exchanger body including therein a water chamber;
a top body tube including therein a fire chamber, installed at a top end of an inside of the heat exchanger body, and including a sidewall of which at least a portion is spaced apart from an inner circumferential surface of the heat exchanger body;
an inlet port formed at a bottom end of the heat exchanger body and allowing water to be supplied therethrough to the water chamber;
an outlet port connected to a top end of the heat exchanger body and allowing the water that is heated while passing through the water chamber to be discharged therethrough;
a spiral guide formed at the sidewall of the top body tube in a spiral direction and guiding the water having passed through the water chamber to be discharged to the outlet port without stagnation; and
a plate-shaped guide including a peripheral side flow guide penetrated and supported by at least some of a plurality of combustion pipes, blocking a portion of the water chamber of the heat exchanger body to change flow of the water forcibly, and spaced apart from a floor surface of the top body tube by a distance in a range of 15 mm to 20 mm.
2. The heat exchanger including the circulation guide of claim 1 , wherein the plate-shaped guide further includes a central side flow guide space apart from the peripheral side flow guide in a longitudinal direction of the plurality of combustion pipes and disposed relatively adjacent to the inlet port than the peripheral side flow guide is thereto.
3. The heat exchanger including the circulation guide of claim 2 , wherein the central side flow guide is installed to extend from a center of the heat exchanger body outwardly by a predetermined length.
4. The heat exchanger including the circulation guide of claim 3 , wherein the peripheral side flow guide is installed to extend from an inner circumferential surface of the heat exchanger body inwardly by a predetermined length.
5. The heat exchanger including the circulation guide of claim 1 , wherein the floor surface of the top body tube is adjacent to the sidewall of the top body tube.
6. The heat exchanger including the circulation guide of claim 1 , wherein the peripheral side flow guide and the floor surface of the top body tube are disposed in parallel to each other.
7. The heat exchanger including the circulation guide of claim 1 , wherein the plurality of combustion pipes are connected so that a top end of each of the plurality of combustion pipes passes through the floor surface of the top body tube and guide flow of a high-temperature combustion gas introduced through the fire chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US17/669,619 US20220163235A1 (en) | 2014-04-22 | 2022-02-11 | Heat exchanger having circulation guide |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140047842A KR101606264B1 (en) | 2014-04-22 | 2014-04-22 | Heat exchanger having circulating guide |
KR10-2014-0047842 | 2014-04-22 | ||
PCT/KR2015/003962 WO2015163667A1 (en) | 2014-04-22 | 2015-04-21 | Heat exchanger having circulation guide |
US201615306326A | 2016-11-04 | 2016-11-04 | |
US17/669,619 US20220163235A1 (en) | 2014-04-22 | 2022-02-11 | Heat exchanger having circulation guide |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2015/003962 Continuation-In-Part WO2015163667A1 (en) | 2014-04-22 | 2015-04-21 | Heat exchanger having circulation guide |
US15/306,326 Continuation-In-Part US20170045310A1 (en) | 2014-04-22 | 2015-04-21 | Heat exchanger having circulation guide |
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US20220163235A1 true US20220163235A1 (en) | 2022-05-26 |
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US17/669,619 Pending US20220163235A1 (en) | 2014-04-22 | 2022-02-11 | Heat exchanger having circulation guide |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB256043A (en) * | 1925-07-20 | 1926-08-05 | Frank James Connor | Improvements in gas or other fuel fed boilers or water heaters |
GB278299A (en) * | 1926-06-29 | 1927-09-29 | Harold Hillier | Improvements in and relating to evaporators |
US6142215A (en) * | 1998-08-14 | 2000-11-07 | Edg, Incorporated | Passive, thermocycling column heat-exchanger system |
KR20090063438A (en) * | 2007-12-14 | 2009-06-18 | 주식회사 경동나비엔 | Condensing type boiler |
US20120080172A1 (en) * | 2010-10-01 | 2012-04-05 | Aic S.A. | Heat Exchanger |
-
2022
- 2022-02-11 US US17/669,619 patent/US20220163235A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB256043A (en) * | 1925-07-20 | 1926-08-05 | Frank James Connor | Improvements in gas or other fuel fed boilers or water heaters |
GB278299A (en) * | 1926-06-29 | 1927-09-29 | Harold Hillier | Improvements in and relating to evaporators |
US6142215A (en) * | 1998-08-14 | 2000-11-07 | Edg, Incorporated | Passive, thermocycling column heat-exchanger system |
KR20090063438A (en) * | 2007-12-14 | 2009-06-18 | 주식회사 경동나비엔 | Condensing type boiler |
US20120080172A1 (en) * | 2010-10-01 | 2012-04-05 | Aic S.A. | Heat Exchanger |
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