CN109838886A - Gas heater - Google Patents
Gas heater Download PDFInfo
- Publication number
- CN109838886A CN109838886A CN201711223178.2A CN201711223178A CN109838886A CN 109838886 A CN109838886 A CN 109838886A CN 201711223178 A CN201711223178 A CN 201711223178A CN 109838886 A CN109838886 A CN 109838886A
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- China
- Prior art keywords
- shell
- matrix
- reaction device
- heat
- mounting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011159 matrix material Substances 0.000 claims abstract description 88
- 239000003054 catalyst Substances 0.000 claims abstract description 81
- 238000006243 chemical reaction Methods 0.000 claims abstract description 66
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 48
- 230000002093 peripheral effect Effects 0.000 claims description 32
- 239000011148 porous material Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 29
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 20
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 9
- 238000002485 combustion reaction Methods 0.000 description 16
- 238000009434 installation Methods 0.000 description 11
- 230000003197 catalytic effect Effects 0.000 description 9
- 239000003517 fume Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- HERJJROLHRDFEX-UHFFFAOYSA-N [AlH3].[Si](O)(O)(O)O Chemical compound [AlH3].[Si](O)(O)(O)O HERJJROLHRDFEX-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gas Burners (AREA)
Abstract
The present invention discloses a kind of gas heater, gas heater includes heat exchanger and catalyst reaction device, the heat exchanger includes shell and two heat exchange departments that are disposed in the housing, two heat exchange departments are spaced setting along the vertical direction, each heat exchange department includes a fins set and one is arranged in heat-exchange tube in the fins set, two heat-exchange tubes are connected to by communicating pipe, and two the fins set pass through interconnecting piece connect, the catalyst reaction device is arranged between two heat exchange departments, the catalyst reaction device includes matrix, described matrix is equipped with multiple catalysis holes through its upper and lower surface, the hole wall in each catalysis hole is equipped with catalyst.Technical solution of the present invention can reduce the content of carbon monoxide in flue gas.
Description
Technical field
The present invention relates to technical field of water heaters, in particular to a kind of gas heater.
Background technique
The heating method of gas heater is to carry out burning generation heat with air to be heated, due to this using fuel
The characteristic of kind of heating method itself, when fuel and air burning, especially under conditions of burning is not enough, can generate compared with
More carbon monoxide, such harmful substance are discharged into outside with flue gas together, cause greatly to endanger to environmental and human health impacts
Evil.
Summary of the invention
The main object of the present invention is to provide a kind of gas heater, it is intended to reduce the content of carbon monoxide in flue gas.
To achieve the above object, gas heater proposed by the present invention includes heat exchanger and catalyst reaction device, described
Heat exchanger includes shell and two heat exchange departments that are disposed in the housing, and two heat exchange departments are spaced along the vertical direction to be set
It sets, each heat exchange department includes a fins set and one is arranged in heat-exchange tube in the fins set, and two heat are handed over
It changes pipe to be connected to by communicating pipe, and two fins sets are connected by interconnecting piece, the catalyst reaction device is arranged described in two
Between heat exchange department, the catalyst reaction device includes matrix, and described matrix is equipped with multiple catalysis through its upper and lower surface
The hole wall in hole, each catalysis hole is equipped with catalyst.
Preferably, it is equipped at intervals with resigning mouthful on the shell and between corresponding two heat exchange departments, the catalysis is anti-
Answer device that can pass in and out the shell via the resigning mouthful.
Preferably, the catalyst reaction device includes the mounting plate fixed for described matrix, and the mounting plate is along the base
The one side of body extends, and the edge beyond described matrix is arranged, and described matrix is arranged in the shell from the resigning mouthful,
The mounting plate abuts fixation with the outer surface of the shell, closes the resigning mouthful with lid.
Preferably, the lateral surface equipped with the resigning mouthful of the shell is equipped with two otic placodes, and two otic placodes correspond
The two opposite sides edge of the shell is arranged, and the laterally protruding shell, is equipped with fixation hole on two otic placodes for described
Mounting plate installation.
Preferably, gasket is equipped between the mounting plate and the outer surface of the shell, the gasket allows described in
The peritreme of position mouth is annularly arranged.
Preferably, the catalyst reaction device further includes the outer peripheral surface enclosed set on described matrix, and is fixed with described matrix
Peripheral frame, the peripheral frame fixes with the mounting plate.
Preferably, the interconnecting piece is bonded setting with the inner wall of the shell towards the resigning mouthful.
Preferably, the communicating pipe is located at outside the shell, and is arranged through the shell.
Preferably, the catalysis hole is arranged in bending.
Preferably, the hole wall in the catalysis hole is equipped with the intercommunicating pore for being connected to another catalysis hole.
In the present invention, by being arranged catalyst reaction device between two heat exchange departments, rather than it is arranged in heat exchange department
Top so that catalyst reaction device and burner, apart from closer, the temperature of catalyst reaction device is higher, urges to be more advantageous to
Agent plays catalytic action.The high-temperature flue gas that burner combustion generates is after heat exchange occurs for the heat-exchange tube of lower section, two
Generally 300-600 DEG C of the flue-gas temperature of interval between heat-exchange tube, which reaches the ignition temperature of catalyst reaction device
Degree, and catalyst reaction device carbon distribution can be reduced, to guarantee that the CO conversion of catalyst converter reaction unit reaches 90%
More than.Meanwhile by the way that upper and lower two fins set is connected, so that two fins sets form an entirety, it is advantageously implemented components
Globality, so as to reduce installation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of gas heater of the present invention, and wherein catalyst reaction device is not shown；
Fig. 2 is the cut-away illustration of gas heater in Fig. 1；
Fig. 3 is cut-away illustration of the gas heater after assembling catalyst reaction device in Fig. 1；
Fig. 4 is the top view of catalyst reaction device of the present invention；
Fig. 5 is catalyst reaction device in Fig. 4 along the cut-away illustration of A-A；
Fig. 6 is catalyst reaction device in Fig. 5 along the cut-away illustration of B-B；
Fig. 7 is catalyst reaction device in Fig. 5 along the cut-away illustration of C-C.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 11 | Shell | 21a | Mounting hole |
| 11a | Resigning mouthful | 22 | Matrix |
| 12 | Heat exchange department | 22a | It is catalyzed hole |
| 121 | Heat-exchange tube | 22b | Intercommunicating pore |
| 122 | Fins set | 23 | Peripheral frame |
| 123 | Interconnecting piece | 231 | Limit flange |
| 13 | Otic placode | 232 | Flange is installed |
| 13a | Fixation hole | 24 | Insulating layer |
| 20 | Catalyst reaction device | 30 | Gasket |
| 21 | Mounting plate |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of gas heater, and as shown in Figures 1 to 4, the gas heater includes burner, heat friendship
Parallel operation and catalyst reaction device 20.Burner is preferably shade burner, and burner is usually located at the lower section of heat exchanger, and
Independently it is connected with heat exchanger, so that heat exchanger is exchanged heat using the combustion product gases that burner generates.Heat exchanger packet
Shell 11 is included, and two heat exchange departments 12 in shell 11, the upper and lower ends perforation of shell 11, in order to burner generation
Combustion product gases can move upwards through shell 11, and finally flow into exhaust fume collecting hood, and arrange via exhaust fume collecting hood from the upper end of shell 11
Out.
In the present embodiment, two heat exchange departments 12 are spaced setting along the vertical direction, and each heat exchange department 12 wraps
It includes a fins set 122 and one and is arranged in heat-exchange tube 121 in the fins set 122, two heat-exchange tubes 121 pass through connection
Pipe connection, and two fins sets 122 are connected by interconnecting piece 123.The heat-exchange tube 121 of extraneous tap water from below flows into,
After the fins set 122 with lower section is exchanged heat, then from the heat-exchange tube 121 that communicating pipe flows into top, and the wing with top
Piece group 122 exchanges heat, to be heated to form hot water.The setting of fins set 122, further increases combustion product gases and heat exchange
The heat exchange area of pipe 121, so that heat transfer effect is more preferable.Upper and lower two fins set 122 is linked into an integrated entity by interconnecting piece 123,
Interconnecting piece 123 specifically can plate-like, strip or threadiness etc., and the material of interconnecting piece 123 is identical as the material of fins set 122, together
Sample has good heating conduction.By the way that upper and lower two fins set 122 is connected, so that two fins sets 122 form an entirety, have
Conducive to the globality for realizing components, so as to reduce installation, such as can will wherein a fins set 122 with the fixation of shell 11 be
Can, another fins set 122 then depends on the fins set 122 fixed.In the present embodiment, to enable heat-exchange tube 121
It carries out repeating contact heat-exchanging with combustion product gases, therefore each heat-exchange tube 121 is arranged in detour shape, to increase heat-exchange tube
121 length.Heat-exchange tube 121 is preferably with detour in the horizontal direction, to reduce the height of heat-exchange tube 121, so that heat is handed over
Pipe 121 is changed to be arranged in upper layer and lower layer.
In the present embodiment, the catalyst reaction device 20 is arranged between two heat exchange departments 12, the catalysis reaction
Device 20 includes matrix 22, and described matrix 22 is equipped with multiple catalysis hole 22a through its upper and lower surface, each catalysis hole
The hole wall of 22a is equipped with catalyst.
Specifically, matrix 22 is in substantially bulk, such as in square, round block, hexagon bulk etc..Described matrix 22 can adopt
It is made into materials such as stainless steel, copper alloy, aluminium alloy or ceramics, so that catalyst is attached on the catalysis hole 22a of matrix 22.This
In embodiment, multiple catalysis hole 22a perfectly even arrange on matrix 22, such as can arrange in matrix, so that base
Body 22 is consistent to the catalysis situation of carbon monoxide everywhere.Preferably, the catalysis hole 22a is square hole, certainly, the catalysis hole
22a can also be circular hole or trapezoidal hole etc..Coating specifically can be used in the catalyst or the catalysis hole is arranged in the mode of immersion
The hole wall of 22a, that is to say, that can be applied directly to urge by catalyst using tool after forming matrix 22 in the present embodiment
On the hole wall for changing hole 22a；It is formed by liquid alternatively, being entirely immersed in matrix 22 using catalyst, so that catalyst is attached
On matrix 22.Catalyst can the carbon monoxide in catalytic combustion flue gas oxidation reaction occurs, so that its is generated carbon dioxide,
It is possible thereby to reduce the content of the carbon monoxide in the combustion product gases being discharged into air, and then the gas heater can be improved
Security performance and using effect.
Those skilled in the art are it is understood that the type of catalyst is not particularly limited in catalyst reaction device 20, as long as can
Oxidation reaction occurs for catalytic CO.For example, catalyst can be noble metal carrier catalyst, the noble-metal-supported
Type catalyst includes carrier and carried noble metal, and carrier can be aluminum oxide, carried noble metal can for Pt, Pd or
Au etc..Further, it is also possible to add certain additive in the catalyst.
In the present invention, by being arranged catalyst reaction device 20 between two heat exchange departments 12, rather than it is arranged and is handed in heat
The top in portion 12 is changed, so that catalyst reaction device 20 and burner, apart from closer, the temperature of catalyst reaction device 20 is higher, thus
It is more advantageous to catalyst and plays catalytic action.The heat-exchange tube 121 that the high-temperature flue gas that burner combustion generates passes through lower section occurs
After heat exchange, generally 300-600 DEG C of the flue-gas temperature of the interval between two heat-exchange tubes 121, which reaches catalysis
The initiation temperature of reaction unit 20, and 20 carbon distribution of catalyst reaction device can be reduced, to guarantee the one of catalyst converter reaction unit
Carbon oxide conversion rate reaches 90% or more.Meanwhile by the way that upper and lower two fins set 122 is connected, so that two fins sets 122 form one
A entirety is advantageously implemented the globality of components, so as to reduce installation.
Interval for convenience of the taking-up of catalyst reaction device 20, on the shell 11 and between corresponding two heat exchange departments 12
Equipped with resigning mouthful 11a, the catalyst reaction device 20 can pass in and out the shell 11 via the resigning mouthful 11a.Usual combustion gas
Burner, heat exchanger and the exhaust fume collecting hood of water heater be it is sequentially connected from bottom to top, interrelated between each component, catalysis is anti-
It answers device 20 to be arranged in internal heat exchanger, if desired takes out catalyst reaction device 20, by exhaust fume collecting hood or must will just burn
Device is removed, so that the upper end of heat exchanger or lower ending opening appear, to take out catalyst reaction device 20.And in the present invention,
By the way that resigning mouthful 11a is arranged in the side of heat exchanger, the matrix 22 of catalyst reaction device 20 can be passed in and out via resigning mouthful 11a
Shell 11, to facilitate the taking-up of catalyst reaction device 20.In the embodiment, to avoid catalyst reaction device 20 from falling, therefore
In the settable support convex of the inner sidewall of shell 11, to support catalyst reaction device 20, and support convex only plays support and makees
With will not cause to interfere to the disengaging of catalyst reaction device 20.
Further, catalyst reaction device 20 includes mounting plate 21 and the matrix 22 being fixed on the mounting plate 21, institute
The one side that mounting plate 21 is stated along described matrix 22 extends, and the edge beyond described matrix 22 is arranged, and shell 11 is equipped with and allows
Position mouth 11a, described matrix 22 are arranged in the shell 11 from the resigning mouthful 11a, the mounting plate 21 and the shell 11
Outer surface abut and fix, the resigning mouthful 11a is closed with lid.In the present embodiment, mounting plate 21 is opposite with the one side of matrix 22
Setting, and the edge up and down of mounting plate 21 exceeds the edge setting of matrix 22, the one side of matrix 22 and installation
Plate 21 is bonded, and the modes such as can specifically take welding between matrix 22 and mounting plate 21, be spirally connected or be clamped be fixed, so that
Matrix 22 and mounting plate 21 form an entirety.In assembling, matrix 22 is directly directed at resigning mouthful 11a, to push base inwardly
Body 22, so that matrix 22 is placed in completely in shell 11, until mounting plate 21 is abutted with the outer surface of shell 11, it then again will peace
Loading board 21 and shell 11 are fixed, fall to avoid matrix 22, then matrix 22 does not need to be fixed with shell 11, only relies on installation
Plate 21 and shell 11 are fixed.It is envisioned that then being installed since mounting plate 21 is abutted with the outer surface of shell 11
The edge of plate 21 is also above the peritreme setting of resigning mouthful 11a, that is to say, that the area of mounting plate 21 is greater than resigning mouthful
The opening area of 11a so that mounting plate 21 be avoided also to be pushed into inside shell 11, and also ensures that mounting plate 21 being capable of Gai Herang
Position mouth 11a, avoids smog from running out of from resigning mouthful 11a.To be detachably connected between mounting plate 21 and shell 11, to facilitate catalysis anti-
The taking-up of device 20 is answered, is replaced or is cleaned conducive to catalyst reaction device 20.Specifically, mounting plate 21 passes through with shell 11
Screw fixes that perhaps mounting plate 21 is fixed with shell 11 by pin or mounting plate 21 and shell 11 pass through buckle clamping etc..
Concretely stainless steel plate or copper sheet, thickness are preferably 0.6-2mm to mounting plate 21, for example, the thickness of mounting plate 21 can be
0.6mm, 1mm or 2mm etc., it is excessively thin to avoid thickness and be broken or thickness is blocked up and cause the increase of cost.
Burner, heat exchanger and the exhaust fume collecting hood of usual gas heater be it is sequentially connected from bottom to top, each component it
Between it is interrelated, catalyst reaction device 20 be arranged in internal heat exchanger, if desired catalyst reaction device 20 is taken out, just it is necessary
It is removed by exhaust fume collecting hood or by burner, so that the upper end of heat exchanger or lower ending opening appear, to take out catalysis reaction dress
Set 20.And in the present invention, by the way that resigning mouthful 11a is arranged in the side of heat exchanger, the matrix 22 of catalyst reaction device 20 can
Shell 11 is passed in and out via resigning mouthful 11a, the mounting plate 21 of catalyst reaction device 20 is then fixed with shell 11, thus only needs to pacify
Loading board 21 is separated with shell 11, does not need to remove the burner below the exhaust fume collecting hood or heat exchanger above heat exchanger, so that it may
To realize the dismounting of catalyst reaction device 20, to improve the installation and removal speed of catalyst reaction device 20.Simultaneously as
Matrix 22 is fixed on mounting plate 21, is fixed on shell 11 by mounting plate 21, matrix 22 and 11 company of not needing of shell
It connects, therefore taking-up can be facilitated.
In the present embodiment, catalysis hole 22a can be flowed through to make combustion product gases, by catalyst, therefore in the shell
The inner wall of body 11 and circumferentially arranged with overlap joint protrusion (not shown go out), the overlap joint protrusion is in along the bottom surface periphery of described matrix 22
Ring-type setting, described matrix 22 are overlapped in the top surface of the overlap joint protrusion, are equivalent to matrix 22 and overlap joint protrusion jointly by shell
11 are separated into two parts up and down, are connected between upper and lower two parts by catalysis hole 22a, so all combustion product gases can
Be catalyzed in catalysis hole 22a, avoid combustion product gases from the gap between 11 inner wall of described matrix 22 and the shell and
It is just discharged without catalysis.In addition, by setting overlap joint protrusion, so that space set between matrix 22 and the inner wall of shell 11,
To facilitate matrix 22 to slide in and out with respect to shell 11.Meanwhile the setting for overlapping protrusion can also play support to matrix 22 and make
With the stress of reduction mounting plate 21.It overlaps protrusion to be preferably integrally formed with shell 11, to reduce installation.
Incorporated by reference to reference Fig. 1 and Fig. 5, in the present embodiment, the outer surface equipped with the resigning mouthful 11a of the shell 11 is set
There are two otic placodes 13, two otic placodes 13 correspond the two opposite sides edge setting of the shell 11, and the laterally protruding shell
11, fixation hole 13a is equipped on two otic placodes 13, and mounting hole 21a, mounting plate 21 and ear are correspondingly arranged on mounting plate 21
It is connected between plate 13 by fastener, fastener wears fixation hole 13a and mounting hole 21a setting, and fastener can be screw, pin
Deng.It is installed by two otic placodes 13 of setting for mounting plate 21, can be avoided and directly punched on shell 11 and cause combustion product gases
Leakage.Two mounting hole 21a are preferably provided on each otic placode 13, then the fixation of the catalyst reaction device 20 only needs four screws i.e.
Can, the workload of dismounting can be reduced.Certainly, in other embodiments, mounting plate 21 is directly fixed with shell 11.
To avoid combustion product gases from leaking from resigning mouthful 11a, thus the outer surface of the mounting plate 21 and the shell 11 it
Between be equipped with gasket 30, the gasket 30 is annularly arranged along the peritreme of the resigning mouthful 11a, and mounting plate 21 is pressed on sealing
On pad 30, so that resigning mouthful 11a sealing cover be closed, running out of for combustion product gases is avoided.The material of gasket 30 is preferably silicic acid
Aluminum fiber.In the present embodiment, the region of sealing is to set along the edge of resigning mouthful 11a relative to by catalyst reaction device 20
Set above shell 11, to the mode that the entire periphery of shell 11 is sealed, the opening of the resigning mouthful 11a of the present embodiment compared with
It is small, thus it is smaller along the sealing area of resigning mouthful 11a periphery, it is thus possible to reduce the setting of sealing material.
In general, the height of resigning mouthful 11a is 10-50mm, for example, the optional 10mm, 20mm of the height of resigning mouthful 11a,
Any number between the 10-50mm such as 45mm or 50mm.If resigning mouthful 11a is too small, can only pass through for relatively thin matrix 22,
On matrix 22 catalysis hole 22a height it is smaller, the circulation path of carbon monoxide and oxygen is shorter, be unfavorable for carbon monoxide into
Row is sufficiently catalytic；If resigning mouthful 11a is excessive, the area needs of mounting plate 21 are arranged larger, cause the waste of material, and
It is unfavorable for mounting plate to be sealed resigning mouthful 11a, while but also the intensity of shell 11 is greatly reduced.In the present embodiment, lead to
The High definition by resigning mouthful 11a is crossed between 10-50mm, both ensure that the intensity of shell 11, also allows for matrix 22
Height is suitble to, good catalytic activity of the catalysis hole 22a to carbon monoxide.
Incorporated by reference to reference Fig. 6 and Fig. 7, further, the catalyst reaction device 20 further includes enclosing set on described matrix 22
Outer peripheral surface, and the peripheral frame 23 fixed with described matrix 22, the peripheral frame 23 and the mounting plate 21 are fixed.In the present embodiment,
Since matrix 22 is mainly arranged for catalyst, especially when matrix 22 is using ceramic material, it is unfavorable for matrix 22 and installation
The connection of plate 21, therefore by setting peripheral frame 23 so that packed tightly in matrix 22 is around in by peripheral frame 23, then by peripheral frame 23 with
Mounting plate 21 is fixed, to realize the fixation of matrix 22.Metal material specifically can be used in peripheral frame 23, to facilitate along matrix
22 circumferential surface bending.
In the present embodiment, to avoid matrix 22 from falling off from peripheral frame 23, the upper and lower ends of the peripheral frame 23 are equipped with towards varus
The limit flange 231 of folding, the two limit flange 231 clamp described matrix 22 jointly, so that matrix 22 is limited by upper and lower two
Flange 231.Certainly, in other embodiments, peripheral frame 23 can be arranged along the entire circumferential surface of matrix 22, to form closed hoop, and
It is close-fitting between peripheral frame 23 and matrix 22, so that peripheral frame 23 is tight by matrix 22 and the cladding power to matrix 22
Including Gu.
In the present embodiment, peripheral frame 23 only coats the portion peripheral surface of matrix 22.Specifically, described matrix 22 include it is multiple according to
The first side of secondary connection and with multiple end to end second sides of first side, the mounting plate 21 is along described
Second side extends, and the edge beyond the second side is arranged, i.e., mounting plate 21 is oppositely arranged with second side, institute
Peripheral frame 23 is stated then to be arranged in the first side.That is, in this embodiment, mounting plate 21 is pressed on the of matrix 22
Two side faces avoid matrix 22 from being extruded from the notch of peripheral frame 23, in matrix 22 is disposed around by peripheral frame 23 and mounting plate 21 jointly,
Peripheral frame 23 and mounting plate 21 interact, to limit to matrix 22.
It please recombine with reference to Fig. 4 and Fig. 5, it is described to enclose for convenience of the fixation of peripheral frame 23 and mounting plate 21 in the present embodiment
Frame 23 is turned down close to the both ends of the mounting plate 21 outwardly to be formed and install flange 232, the installation flange 232 and the peace
Loading board 21 is fixed.Specifically, the installation flange 232 is welded with the mounting plate 21 or is fixed by screw.Pacified by setting
The mode for filling flange 232, is capable of increasing the contact area of peripheral frame 23 Yu mounting plate 21, so that fixed effect is more preferable.In other realities
Apply in example, peripheral frame 23 can also entirely surround matrix 22 circumferential surface setting, then peripheral frame 23 towards the part of second side directly with peace
Loading board 21 is contacted and is fixed.
To reduce scattering and disappearing for 22 heat of described matrix, in the present embodiment, the outer peripheral surface of described matrix 22 is coated with heat preservation
Layer 24.Specifically, it is equipped between the peripheral frame 23 and described matrix 22 and between the mounting plate 21 and described matrix 22
Insulating layer 24, that is, between the peripheral frame 23 and the first side and the mounting plate 21 and the second side
Between be equipped with insulating layer 24.In the embodiment, the insulating layer 24 is preferably cushion blocking or heat-preservation cotton.By the way that insulating layer is arranged
24, heat can be reduced and scattered and disappeared towards surrounding, so that heat is concentrated inwardly to heat the catalyst, to improve heat energy utilization
Rate, preferably to be preheated to catalyst, so that the catalytic effect of catalyst is more preferable.Simultaneously because insulating layer 24 is generally soft
Material, therefore buffering and vibration damping can be played the role of, to react and fill when catalysis during mounting and dismounting catalyst reaction device
Set avoids matrix from damaging when being collided.
To avoid communicating pipe from causing to interfere to matrix 22, in one embodiment, the communicating pipe is located at outside the shell 11,
And be arranged through the shell 11, and it is respectively communicated with two heat-exchange tubes 121.Certainly, in other embodiments, communicating pipe is also reliable
The inner wall setting of nearly shell 11, such as inner wall of the shell 11 towards resigning mouthful 11a is set communicating pipe.It please recombine reference
Fig. 2, similarly, the interconnecting piece 123 are arranged close to the inner wall of resigning mouthful 11a described in 11 face of shell, to avoid base is hindered
The movement of body 22, interconnecting piece 123 are preferably to be bonded what shell 11 was arranged.Since upper and lower fins set 122 is connected by interconnecting piece 123
It connects, when the setting overlap joint protrusion in shell 11, the setting of interconnecting piece 123 is avoided in overlap joint protrusion, i.e., towards resigning mouthful 11a's
Not set overlap joint protrusion, matrix 22 move inwardly on 11 inner wall of shell, until abutting with interconnecting piece 123, can equally reduce burning
Flue gas is flowed from the gap between 11 inner wall of matrix 22 and shell.Certainly, interconnecting piece 123 may also be arranged on and resigning mouthful 11a phase
On adjacent inner wall.
To increase contact duration of the combustion product gases with catalyst, so that carbon monoxide is sufficiently catalytic, in the present embodiment,
The catalysis hole 22a is arranged in bending, so that the length of catalysis hole 22a is extended, so that combustion product gases are in catalysis hole 22a
Motion path lengthen, to strengthen catalytic effect.
Further, it is interconnected between the two adjacent catalysis hole 22a.Specifically, the hole of the catalysis hole 22a
Wall is equipped with the intercommunicating pore 22b for being connected to another catalysis hole 22a, settable multiple companies on the hole wall of each catalysis hole 22a
Through-hole 22b, different intercommunicating pore 22b can connect identical catalysis hole 22a, that is to say, that by multiple between two catalysis hole 22a
Intercommunicating pore 22b connection；Or the different intercommunicating pore 22b on same catalysis hole 22a are all connected with different catalysis hole 22a, to be formed
The branch of multiple supplied gas circulations, so that each catalysis hole 22a is directly or indirectly connected to, so that the duct of matrix 22 is in
The porous body of the labyrinth type tridimensional network of interconnection enhances catalytic effect, an oxygen to effectively increase catalysis area
Change carbon and the path that oxygen passes through are longer, react more abundant, so under equal conversion ratio, using such catalyst reaction device
20, volume can reduce one third or more, so as to avoid small product size excessive.Preferably, matrix 22 is foam pottery
Porcelain, the porosity of foamed ceramics is between 20%~95%, it is preferable that and the porosity may be provided between 60%~90%, such as
60%, 70% or 90% so that catalysis hole 22a both will not be excessive and influencing mechanical performance causes matrix 22 to be broken,
The smooth outflow of combustion product gases will not be influenced because catalysis hole 22a is very little.Foamed ceramics has low heat conduction coefficient, resistance to height
The advantages that temperature, corrosion resistance, good thermal shock resistance, stable mechanical performance.Carbon monoxide and oxygen are generated since temperature is higher
It is more advantageous that chemical reaction generates carbon dioxide, therefore the heat-resisting quantity of foamed ceramics can guarantee that catalyst reaction device 20 is placed
In the higher position of temperature, the better adaptability of such catalyst reaction device 20.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of gas heater, which is characterized in that including heat exchanger and catalyst reaction device, the heat exchanger includes shell
Body and two heat exchange departments being disposed in the housing, two heat exchange departments are spaced setting along the vertical direction, and each heat is handed over
It changes portion and includes a fins set and one and be arranged in heat-exchange tube in the fins set, two heat-exchange tubes, which pass through, to be connected communicating pipe
It is logical, and two fins sets are connected by interconnecting piece, the catalyst reaction device is arranged between two heat exchange departments, described
Catalyst reaction device includes matrix, and described matrix is equipped with multiple catalysis holes through its upper and lower surface, each catalysis hole
Hole wall be equipped with catalyst.
2. gas heater as described in claim 1, which is characterized in that on the shell and corresponding two heat exchange departments it
Between be equipped at intervals with resigning mouthful, the catalyst reaction device can pass in and out the shell via the resigning mouthful.
3. gas heater as claimed in claim 2, which is characterized in that the catalyst reaction device includes solid for described matrix
Fixed mounting plate, the mounting plate extends along the one side of described matrix, and the edge beyond described matrix is arranged, described matrix
It is arranged in the shell from the resigning mouthful, the mounting plate abuts fixation with the outer surface of the shell, described in lid conjunction
Resigning mouthful.
4. gas heater as claimed in claim 3, which is characterized in that the lateral surface equipped with the resigning mouthful of the shell
Equipped with two otic placodes, two otic placodes correspond the two opposite sides edge setting of the shell, and the laterally protruding shell, two institutes
It states and is equipped with fixation hole on otic placode so that the mounting plate is installed.
5. gas heater as claimed in claim 3, which is characterized in that between the mounting plate and the outer surface of the shell
Equipped with gasket, the gasket is annularly arranged along the peritreme of the resigning mouthful.
6. gas heater as claimed in claim 3, which is characterized in that the catalyst reaction device further includes enclosing set on described
The outer peripheral surface of matrix, and the peripheral frame fixed with described matrix, the peripheral frame are fixed with the mounting plate.
7. gas heater as claimed in claim 2, which is characterized in that the interconnecting piece and the shell are towards the resigning
The inner wall of mouth is bonded setting.
8. gas heater as claimed in claim 2, which is characterized in that the communicating pipe is located at outside the shell, and runs through
The shell setting.
9. gas heater as described in claim 1, which is characterized in that the catalysis hole is arranged in bending.
10. gas heater as claimed in claim 9, which is characterized in that it is another that the hole wall in the catalysis hole is equipped with connection
The intercommunicating pore in the catalysis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223178.2A CN109838886A (en) | 2017-11-28 | 2017-11-28 | Gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223178.2A CN109838886A (en) | 2017-11-28 | 2017-11-28 | Gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109838886A true CN109838886A (en) | 2019-06-04 |
Family
ID=66881644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711223178.2A Pending CN109838886A (en) | 2017-11-28 | 2017-11-28 | Gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109838886A (en) |
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|---|---|---|---|---|
| JP2005326102A (en) * | 2004-05-17 | 2005-11-24 | Noritz Corp | Heat exchanger, and heat source machine using heat exchanger |
| CN204084861U (en) * | 2014-03-17 | 2015-01-07 | 海尔集团公司 | A kind of gas heater |
| CN204693830U (en) * | 2014-12-30 | 2015-10-07 | 芜湖美的厨卫电器制造有限公司 | Heat exchanger and gas heater |
| CN205351733U (en) * | 2015-12-10 | 2016-06-29 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN207487123U (en) * | 2017-11-28 | 2018-06-12 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
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2017
- 2017-11-28 CN CN201711223178.2A patent/CN109838886A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005326102A (en) * | 2004-05-17 | 2005-11-24 | Noritz Corp | Heat exchanger, and heat source machine using heat exchanger |
| CN204084861U (en) * | 2014-03-17 | 2015-01-07 | 海尔集团公司 | A kind of gas heater |
| CN204693830U (en) * | 2014-12-30 | 2015-10-07 | 芜湖美的厨卫电器制造有限公司 | Heat exchanger and gas heater |
| CN205351733U (en) * | 2015-12-10 | 2016-06-29 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN207487123U (en) * | 2017-11-28 | 2018-06-12 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
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