CN104713234A - Water heater heat exchanger and manufacturing method thereof - Google Patents
Water heater heat exchanger and manufacturing method thereof Download PDFInfo
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- CN104713234A CN104713234A CN201510062025.9A CN201510062025A CN104713234A CN 104713234 A CN104713234 A CN 104713234A CN 201510062025 A CN201510062025 A CN 201510062025A CN 104713234 A CN104713234 A CN 104713234A
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Abstract
The invention discloses a water heater heat exchanger which comprises a water inlet tube, a water outlet tube, a first group of communicating tubes, a second group of communicating tubes and a heat exchange main body which comprises a combustor, heat conduction tubes and a heat exchange fin which are formed by integral die-casting forming through aluminum alloy, three or more heat conduction tubes are arranged, and each heat conduction tube protrudes out of the first end and the second end of the heat exchange main body; the first group of communicating tubes and the water inlet tube are located at the first end of the heat exchange main body, the water inlet tube is used for being communicated with one heat conduction tube which protrudes out of the first end of the heat exchange main body, and the first group of communicating tubes is used for being communicated with the rest heat conduction tubes which protrude out of the first end of the heat exchange main body; the second group of communicating tubes and the water outlet tube are located at the second end of the heat exchange main body, the water outlet tube is used for being communicated with one heat conduction tube which protrudes out of the first end of the heat exchange main body, and the second group of communicating tubes is used for being communicated with the rest heat conduction tubes which protrude out of the first end of the heat exchange main body. The invention further discloses a manufacturing method of the water heater heat exchanger. The water heater heat exchanger and the manufacturing method thereof have the advantages that the cost is reduced, and the overall strength and the heat conduction efficiency of the heat exchanger are improved.
Description
Technical field
The present invention relates to technical field of water heaters, particularly relate to a kind of water-heater heat-exchanging device and manufacture method thereof.
Background technology
The heat exchange structure of existing heat-exchanger for gas-fired, all adopt red copper heat pipe to intert in fin, and red copper material cost of manufacture is higher, therefore people start to adopt lower-cost aluminum alloy material to make.But existing heat exchanger makes to be needed to wear some fins on heat pipe, and arranges coil pipe in periphery, combustion chamber, and not only efficiency is low, and the aluminum alloy heat exchanger intensity made is lower.
Summary of the invention
Main purpose of the present invention is to provide a kind of water-heater heat-exchanging device and manufacture method thereof, is intended to save cost, and improves the intensity of the heat exchanger of water heater.
In order to achieve the above object, the invention provides a kind of water-heater heat-exchanging device, described water-heater heat-exchanging device comprises the heat exchange main body being molded combustion chamber, heat pipe, heat exchange fin by aluminium alloy integrated die-casting, described heat pipe is provided with at least three, and every root heat pipe all protrudes out first end and second end of heat exchange main body; Described hot water heat exchanger also comprises water inlet pipe, outlet pipe and first group of communicating pipe, second group of communicating pipe, first group of communicating pipe and water inlet pipe are positioned at the first end of heat exchange main body, described water inlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described first group of communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between connection; Second group of communicating pipe and outlet pipe are positioned at the second end of heat exchange main body, described outlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described second group of communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between be communicated with.
Preferably, described combustion chamber, heat pipe, heat exchange fin form described heat exchange body by aluminium alloy integrated die-casting is shaping together.
Preferably, also coil pipe is provided with outside described combustion chamber; Described coil pipe is communicated with described water inlet pipe away from one end of heat exchange fin, and described coil pipe is communicated with the heat pipe protruding out heat exchange main body second end by second group of communicating pipe near one end of described heat exchange fin.
Preferably, described coil pipe forms described heat exchange body by aluminium alloy integrated die-casting is shaping together with combustion chamber, heat pipe, heat exchange fin; Described coil pipe is also provided with opening near the position of heat exchange main body first end and the second end; Described opening is by plug shutoff.
Preferably, described in be positioned at heat exchange main body first end communicating pipe form right end cap by aluminium alloy integrated die-casting, the communicating pipe being positioned at heat exchange main body second end forms left end cap by aluminium alloy integrated die-casting.
Preferably, described left end cap and right end cap are provided with opening, and described opening is by plug shutoff.
Preferably, described heat exchange main body and the surfaces externally and internally of communicating pipe all adopt chemical nickel plating surface treatment.
Preferably, the shape of cross section of described heat pipe can be circle, ellipse, oblateness, rectangle, square.
In addition, for achieving the above object, present invention also offers a kind of manufacture method of water-heater heat-exchanging device, it is characterized in that, the manufacture method of described water-heater heat-exchanging device comprises the following steps:
According to the heat exchange main body die casting pre-set, the heat exchange main body with combustion chamber, heat pipe, heat exchange fin is molded by aluminium alloy integrated die-casting, wherein said heat pipe is provided with at least three, and every root heat pipe all protrudes out heat exchange main body first end and the second end;
Water inlet pipe, outlet pipe and two groups of communicating pipes are provided, first group of communicating pipe and water inlet pipe are positioned at the first end of heat exchange main body, described water inlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described first group of communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between be communicated with; Second group of communicating pipe and outlet pipe are positioned at the second end of heat exchange main body, described outlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described second group of communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between be communicated with.
Preferably, the aluminium alloy compression casting that adopts communicating pipe being positioned at heat exchange main body first end described in is molded as one structure; The described communicating pipe being positioned at heat exchange main body second end adopts aluminium alloy compression casting to be molded as one structure.
Preferably, the manufacture method of described water-heater heat-exchanging device also comprises:
Chemical nickel plating surface treatment is all adopted to described heat exchange body and the surfaces externally and internally of communicating pipe.
Preferably, periphery, described combustion chamber is also provided with coil pipe, and described coil pipe forms described heat exchange body by aluminium alloy integrated die-casting is shaping together with combustion chamber, heat pipe, heat exchange fin.
Preferably, the manufacture method of described water-heater heat-exchanging device also comprises:
There is provided plug, by the opening shutoff on the coil pipe of heat exchange main body.
To sum up, water heater of the present invention has following beneficial effect relative to the water heater of prior art:
(1) heat exchanger main body adopts integral Al-alloy die casting, and intensity is high; And fin and water channel entirety heat transfer, improve heat transfer efficiency;
(2) be communicated with the integrative-structure adopting aluminium alloy compression casting shaping communicating pipe of the heat pipe in heat exchanger main body, i.e. left end cap and right end cap, not only strengthens the intensity of communicating pipe, but also facilitates installation.
(3) each structural design of fittings of water heater can make the surfaces externally and internally process of aluminium alloy, can improve service life, and makes water nonpollution much cleaner, better to user's body;
(4) adopt aluminum alloy die-casting technological greatly to enhance productivity, and reduce costs.
Accompanying drawing explanation
Fig. 1 be heat exchanger of the present invention face structural representation;
Fig. 2 is the structural representation of the heat exchanger right side view shown in Fig. 1;
Fig. 3 is the structural representation of the heat exchanger left side view of the present invention shown in Fig. 1;
Fig. 4 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of A-A line;
Fig. 5 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of B-B line;
Fig. 6 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of C-C line;
Fig. 7 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of D-D line.
Fig. 8 be heat exchange main body of the present invention face structural representation;
Fig. 9 is the structural representation of the heat exchange main body right side view shown in Fig. 8;
Figure 10 is the structural representation of the heat exchange main body left side view shown in Fig. 8;
Figure 11 be the right end cap of heat exchanger of the present invention face structural representation;
Figure 12 is the backsight structural representation of the right end cap of heat exchanger of the present invention;
Figure 13 is for the right end cap shown in Figure 12 is along the sectional structure schematic diagram of E-E;
Figure 14 be the left end cap of heat exchanger of the present invention face structural representation;
Figure 15 is the backsight structural representation of the left end cap of heat exchanger of the present invention;
Figure 16 is for the left end cap shown in Figure 15 is along the sectional structure schematic diagram of F-F;
Figure 17 is the schematic flow sheet of manufacture method first embodiment of water-heater heat-exchanging device of the present invention;
Figure 18 is the schematic flow sheet of manufacture method second embodiment of water-heater heat-exchanging device of the present invention.
In order to make technical scheme of the present invention clearly, understand, be described in further detail below in conjunction with accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of heat exchanger.As shown in Figure 1 to Figure 3, Fig. 1 be heat exchanger of the present invention face structural representation; Fig. 2 is the structural representation of the heat exchanger right side view shown in Fig. 1; Fig. 3 is the structural representation of the heat exchanger left side view of the present invention shown in Fig. 1.This heat exchanger comprises heat exchange main body, left end cap 60, right end cap 50, water inlet pipe 70, outlet pipe 80 and plug 90.
Particularly, as shown in Figures 4 to 6, Fig. 4 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of A-A line; Fig. 5 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of B-B line; Fig. 6 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of C-C line; Fig. 7 is for the heat exchanger shown in Fig. 1 is along the cross-sectional view of D-D line.Heat exchange main body comprise molded by aluminium alloy integrated die-casting combustion chamber 10, heat pipe 20, heat exchange fin 30 and coil pipe 40.Heat exchange fin 30 is positioned at the top of combustion chamber 10.Described heat pipe 20 is many, and is arranged in heat exchange fin 30, and protrudes out heat exchange main body two ends.Coil pipe 40 is coiled on combustion chamber 10, and spirals up around the side of combustion chamber 10 by bottom combustion chamber 10.In the present embodiment, this coil pipe 40 comprises the first segmentation 41, second segmentation 42 and the 3rd segmentation 43.Wherein,
One end of first segmentation 41 is positioned at the first end 101 of heat exchange main body, and forms water inlet port 411; The other end of the first segmentation 41 extends to another side 103b of combustion chamber 10 along the side 103a of combustion chamber 10 always, and is communicated with one end of the second segmentation 42 on the first end 101 being positioned at heat exchange main body.And the cross section due to combustion chamber 10 is quadrangle, after therefore the first segmentation 41 and the side of combustion chamber 10 are fitted, the knuckle place of the first segmentation 41 will form perforate, and this perforate, by plug 90 shutoff, forms to make this first segmentation 41 water route closed.
One end that 3rd segmentation 43 is positioned on the first end 101 of heat exchange main body is communicated with the other end of described second segmentation 42, and the other end of the 3rd segmentation 43 extends to another side 103b of combustion chamber along the side 103a of combustion chamber 10 always, and forms water outlet port 432.And the cross section due to combustion chamber 10 is quadrangle, after therefore the 3rd segmentation 43 and the side of combustion chamber 10 are fitted, the knuckle place of the 3rd segmentation 43 will form perforate, and this perforate, by plug 90 shutoff, forms to make the 3rd segmentation 43 water route closed.
Composition graphs 8-Figure 10, Fig. 8 be heat exchange main body of the present invention face structural representation; Fig. 9 is the structural representation of the heat exchange main body right side view shown in Fig. 8; Figure 10 is the structural representation of the heat exchange main body left side view shown in Fig. 8.In the present embodiment, heat pipe 20 is 5, and one end of heat pipe 20 protrudes out the first end 101 of heat exchange main body, and the other end of heat pipe 20 protrudes out the second end 102 of heat exchange main body.Wherein, the end correspondence protruding out the heat pipe 20 of the first end 101 of heat exchange main body forms corresponding heat pipe opening 21a, 22a, 23a, 24a, 25a, and the end protruding out the heat pipe 20 of the second end 102 of heat exchange main body forms corresponding heat pipe opening 21b, 22b, 23b, 24b, 25b.Be understandable that, the shape of cross section of above-mentioned heat pipe 20 can be circle, ellipse, oblateness, rectangle, square.
After above-mentioned heat exchange main body is shaping, by two groups of communicating pipes, connection, heat pipe 20 between heat pipe 20 are communicated with coil pipe 40, can conducting water circuit system.One group of first end being arranged on heat exchange main body communicating pipe, another group is arranged on the second end of heat exchange main body communicating pipe.Particularly, by some U-shaped communicating pipes, the water outlet port 432 of coil pipe 40 is communicated with heat pipe opening 21a, heat pipe opening 22a is communicated with heat pipe opening 23a, heat pipe opening 24a is communicated with heat pipe opening 25a, heat pipe opening 21b is communicated with heat pipe opening 22b, heat pipe opening 23b is communicated with heat pipe opening 24b.And then the water inlet port 411 of water inlet pipe 70 with described coil pipe 40 is communicated with, outlet pipe 80 is communicated with heat pipe opening 25b.Therefore, the path of water circuit system is: water is entered by water inlet pipe 70, and enters along the water inlet port 411 of coil pipe 40, is flowed out by the water outlet port 432 of coil pipe 40; Then flow into heat pipe 20 by heat pipe opening 21a, and flow through heat pipe opening 21b, heat pipe opening 22b, heat pipe opening 22a, heat pipe opening 23a, heat pipe opening 23b, heat pipe opening 24b, heat pipe opening 24a, the heat pipe opening 25a of heat pipe 20 successively; Finally flow out heat pipe 20 by heat pipe opening 25b, and flowed out by outlet pipe 80.
Conveniently install, the present embodiment also can be one-body molded by the multiple U-shaped communicating pipe be positioned on heat exchange main body first end 101 and the second end 102.
As shown in Figure 11 to Figure 13, be shaped to the integrative-structure with multiple communicating pipe by aluminium alloy compression casting, be namely positioned at the right end cap 50 on heat exchange main body first end 101.Wherein, six perforates that this right end cap 50 comprises end cap body and offers on this end cap body, i.e. the first perforate 501, second perforate 502, the 3rd perforate 503, the 4th perforate 504, the 5th perforate 505, the 6th perforate 506.And being also provided with three passages in the end cap body of this right end cap 50, this passage is for being communicated with two perforates.As shown in figure 13, be communicated with by passage 51 between the 5th perforate 505 and the 6th perforate 506.And the 5th perforate 505 is for docking with heat pipe opening 24a, the 6th perforate 506 is for docking with heat pipe opening 25a, thus the heat pipe achieving heat pipe opening 24a place is communicated with the heat pipe at heat pipe opening 25a place.
In like manner, by channel connection the 3rd perforate 503 and the 4th perforate 504.And the 3rd perforate 503 is for docking with heat pipe opening 22a, the 4th perforate 504 is for docking with heat pipe opening 23a, thus the heat pipe achieving heat pipe opening 22a place is communicated with the heat pipe at heat pipe opening 23a place.By channel connection first perforate 501 and the second perforate 502.And the first perforate 501 is for docking with the water outlet port 432 of coil pipe 40, the second perforate 502 for docking with heat pipe opening 21a, thus achieves coil pipe 40 and is communicated with heat pipe 20.
As shown in Figure 14 to Figure 16, be shaped to the integrative-structure with multiple communicating pipe by aluminium alloy compression casting, be namely positioned at the left end cap 60 on heat exchange main body first end 102.Wherein, four perforates that this left end cap 60 comprises end cap body and offers on this end cap body, i.e. the 7th perforate 601, the 8th perforate 602, the 9th perforate 603, the tenth perforate 604.And being also provided with two passages in the end cap body of this left end cap 50, this passage is for being communicated with two perforates.As shown in 16, be communicated with by passage 61 between the 9th perforate 603 and the tenth perforate 604.And the 9th perforate 603 is for docking with heat pipe opening 22b, the tenth perforate 604 is for docking with heat pipe opening 21b, thus the heat pipe achieving heat pipe opening 21b place is communicated with the heat pipe at heat pipe opening 22b place.
In like manner, by channel connection the 7th perforate 601 and the 8th perforate 602.And the 7th perforate 601 is for docking with heat pipe opening 24b, the 8th perforate 602 is for docking with heat pipe opening 23b, thus the heat pipe achieving heat pipe opening 22b place is communicated with the heat pipe at heat pipe opening 24b place.
By left end cap 60 and right end cap 50, achieve the connection between every root heat pipe, and being communicated with between heat pipe with coil pipe.And formed by aluminium alloy integrated die-casting due to this left end cap 60 and right end cap 50, not only strengthen the intensity of communicating pipe, but also facilitate installation.
In addition, because left end cap 60 and right end cap 50 are in press casting procedure, the side of each passage all will form opening, therefore in order to ensure the closure of water circuit system, also will arrange plug 90 in the present embodiment, by its shutoff.
Further, put solder at each interface, and use method for welding seal welding, to strengthen the bonding strength of interface.The surfaces externally and internally of heat exchange main body, left end cap 60, right end cap 50 and water inlet pipe 70, outlet pipe 80 all adopts chemical nickel plating process of surface treatment, makes the surfaces externally and internally favorable anti-corrosion effect of part, long service life.
To sum up, water heater of the present invention has following beneficial effect relative to the water heater of prior art:
(1) heat exchanger main body adopts integral Al-alloy die casting, and intensity is high; And fin and water channel entirety heat transfer, improve heat transfer efficiency;
(2) be communicated with the integrative-structure adopting aluminium alloy compression casting shaping communicating pipe of the heat pipe in heat exchanger main body, i.e. left end cap and right end cap, not only strengthens the intensity of communicating pipe, but also facilitates installation.
(3) each structural design of fittings of water heater can make the surfaces externally and internally process of aluminium alloy, can improve service life, and makes water nonpollution much cleaner, better to user's body;
(4) adopt aluminum alloy die-casting technological greatly to enhance productivity, and reduce costs.
Accordingly, present invention also offers a kind of manufacture method of water-heater heat-exchanging device.As shown in figure 17, the manufacture method of this water-heater heat-exchanging device comprises the following steps:
Step S110, according to the die casting of heat exchange main body preset, adopt aluminium alloy integrated die-casting to mold to have the heat exchange main body of combustion chamber, heat pipe, heat exchange fin and coil pipe;
Step S120, provide communicating pipe, and by being communicated with, described coil pipe is communicated with heat pipe, be communicated with between heat pipe;
Step S130, provide water inlet pipe and outlet pipe, and be communicated with coil pipe by water inlet pipe, outlet pipe is communicated with heat pipe, to form water circuit system.
Be understandable that, heat exchange main body also can not arrange coil pipe, but is directly communicated with the heat pipe being positioned at heat exchange main body one end by water inlet pipe, and forms water circuit system.
As shown in figure 18, Figure 18 is manufacture method second embodiment of water-heater heat-exchanging device of the present invention.The manufacture method of the water-heater heat-exchanging device of this embodiment can comprise the following steps:
Step S210, according to the mould of heat exchange main body preset, adopt aluminium alloy integrated die-casting to mold to have the heat exchange main body of combustion chamber, heat pipe, heat exchange fin and coil pipe;
Step S220, according to preset end cap die casting, aluminium alloy integrated die-casting is adopted to mold the left end cap and right end cap with communicating pipe, and left end cap is arranged on one end of heat exchange main body, right end cap is arranged on the other end of heat exchange main body, be communicated with heat pipe to realize described coil pipe, be communicated with between heat pipe;
Step S230, provide water inlet pipe and outlet pipe, and be communicated with coil pipe by water inlet pipe, outlet pipe is communicated with heat pipe, to form water circuit system.
Further, because heat exchange main body, left end cap 60 and right end cap 50 are in press casting procedure, coil pipe 40 in heat exchange main body will form opening, the side of each passage in left end cap 60 and right end cap 50 also will form opening, therefore in order to ensure the closure of water circuit system, in the present embodiment, also plug 90 will be set, by its shutoff.Namely the manufacturing process of above-mentioned water heater also can comprise: provide plug, and by plug by the opening on the coil pipe 40 of heat exchange main body and by the opening shutoff on left end cap 60 and right end cap 50.
Further, in order to strengthen the bonding strength of each interface, the present invention will put solder at each interface, and use method for welding seal welding.Namely the manufacturing process of above-mentioned water heater also can comprise: to the junction of communicating pipe between heat pipe, and the junction of coil pipe and communicating pipe, the junction of water inlet pipe and coil pipe, outlet pipe and heat pipe junction all adopt seal welding process.
Further, because heat exchanger of the present invention adopts aluminum alloy material to make, therefore in order to make the favorable anti-corrosion effect of the surfaces externally and internally of part, the surfaces externally and internally of heat exchanger is also carried out preservative treatment by the present invention.Namely the manufacturing process of above-mentioned water heater also can comprise: all adopt chemical nickel plating surface treatment to the surfaces externally and internally of described heat exchange body and end cap, to make the surfaces externally and internally favorable anti-corrosion effect of heat exchanger, long service life.
To sum up, water heater of the present invention has following beneficial effect relative to the water heater of prior art:
(1) heat exchanger main body adopts integral Al-alloy die casting, and intensity is high; And fin and water channel entirety heat transfer, improve heat transfer efficiency;
(2) be communicated with the integrative-structure adopting aluminium alloy compression casting shaping communicating pipe of the heat pipe in heat exchanger main body, i.e. left end cap and right end cap, not only strengthens the intensity of communicating pipe, but also facilitates installation.
(3) each structural design of fittings of water heater can make the surfaces externally and internally process of aluminium alloy, can improve service life, and makes water nonpollution much cleaner, better to user's body;
(4) adopt aluminum alloy die-casting technological greatly to enhance productivity, and reduce costs.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (13)
1. a water-heater heat-exchanging device, it is characterized in that, described water-heater heat-exchanging device comprises the heat exchange main body being molded combustion chamber, heat pipe, heat exchange fin by aluminium alloy integrated die-casting, and described heat pipe is provided with at least three, and every root heat pipe all protrudes out first end and second end of heat exchange main body; Described hot water heat exchanger also comprises water inlet pipe, outlet pipe and first group of communicating pipe, second group of communicating pipe, first group of communicating pipe and water inlet pipe are positioned at the first end of heat exchange main body, described water inlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described first group of communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between connection; Second group of communicating pipe and outlet pipe are positioned at the second end of heat exchange main body, described outlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described second communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between be communicated with.
2. water-heater heat-exchanging device as claimed in claim 1, it is characterized in that, described combustion chamber, heat pipe, heat exchange fin form described heat exchange body by aluminium alloy integrated die-casting is shaping together.
3. water-heater heat-exchanging device as claimed in claim 1, is characterized in that, be also provided with coil pipe outside described combustion chamber; Described coil pipe is communicated with described water inlet pipe away from one end of described heat exchange fin, and described coil pipe is communicated with the heat pipe protruding out heat exchange main body second end by second group of communicating pipe near one end of heat exchange fin.
4. water-heater heat-exchanging device as claimed in claim 3, it is characterized in that, described coil pipe forms described heat exchange body by aluminium alloy integrated die-casting is shaping together with combustion chamber, heat pipe, heat exchange fin; Described coil pipe is also provided with opening near the position of heat exchange main body first end and the second end; Described opening is by plug shutoff.
5. the hot water heat exchanger as described in any one of claim 1-4, it is characterized in that, the described communicating pipe being positioned at heat exchange main body first end forms right end cap by aluminium alloy integrated die-casting, and the communicating pipe being positioned at heat exchange main body second end forms left end cap by aluminium alloy integrated die-casting.
6. water-heater heat-exchanging device as claimed in claim 5, it is characterized in that, described left end cap and right end cap are provided with opening, and described opening is by plug shutoff.
7. the water-heater heat-exchanging device as described in any one of claim 1-4, is characterized in that, described heat exchange main body and the surfaces externally and internally of communicating pipe all adopt chemical nickel plating surface treatment.
8. the water-heater heat-exchanging device as described in any one of claim 1-4, is characterized in that, the shape of cross section of described heat pipe can be circle, ellipse, oblateness, rectangle, square.
9. a manufacture method for water-heater heat-exchanging device, is characterized in that, the manufacture method of described water-heater heat-exchanging device comprises the following steps:
According to the heat exchange main body die casting pre-set, the heat exchange main body with combustion chamber, heat pipe, heat exchange fin is molded by aluminium alloy integrated die-casting, wherein said heat pipe is provided with at least three, and every root heat pipe all protrudes out heat exchange main body first end and the second end;
Water inlet pipe, outlet pipe and two groups of communicating pipes are provided, first group of communicating pipe and water inlet pipe are positioned at the first end of heat exchange main body, described water inlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described first group of communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between be communicated with; Second group of communicating pipe and outlet pipe are positioned at the second end of heat exchange main body, described outlet pipe is used for being communicated with the heat pipe protruding out described heat exchange main body first end, described second group of communicating pipe for protrude out described heat exchange main body first end all the other heat pipes between be communicated with.
10. the manufacture method of water-heater heat-exchanging device as claimed in claim 9, is characterized in that, described in be positioned at heat exchange main body first end the aluminium alloy compression casting that adopts communicating pipe be molded as one structure; The described communicating pipe being positioned at heat exchange main body second end adopts aluminium alloy compression casting to be molded as one structure.
The manufacture method of 11. water-heater heat-exchanging devices as claimed in claim 10, it is characterized in that, the manufacture method of described water-heater heat-exchanging device also comprises:
Chemical nickel plating surface treatment is all adopted to described heat exchange body and the surfaces externally and internally of communicating pipe.
The manufacture method of 12. water-heater heat-exchanging devices as claimed in claim 9, it is characterized in that, periphery, described combustion chamber is also provided with coil pipe, and described coil pipe forms described heat exchange body by aluminium alloy integrated die-casting is shaping together with combustion chamber, heat pipe, heat exchange fin.
The manufacture method of 13. water-heater heat-exchanging devices as claimed in claim 12, it is characterized in that, the manufacture method of described water-heater heat-exchanging device also comprises:
There is provided plug, by the opening shutoff on the coil pipe of heat exchange main body.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108662782A (en) * | 2017-03-30 | 2018-10-16 | 芜湖美的厨卫电器制造有限公司 | Combustion heat-exchange system and gas heater with it |
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| CN201434510Y (en) * | 2009-06-01 | 2010-03-31 | 广东万和新电气股份有限公司 | Sensible heat exchanger of fuel gas water heater |
| CN201434611Y (en) * | 2009-06-11 | 2010-03-31 | 广东万和新电气股份有限公司 | Sensible heat exchanger of gas water heater |
| CN104251629A (en) * | 2014-09-18 | 2014-12-31 | 广东万和新电气股份有限公司 | Heat exchanger and gas water heater with same |
| CN204494831U (en) * | 2015-02-05 | 2015-07-22 | 芜湖美的厨卫电器制造有限公司 | Water heater and heat exchanger thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662782A (en) * | 2017-03-30 | 2018-10-16 | 芜湖美的厨卫电器制造有限公司 | Combustion heat-exchange system and gas heater with it |
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| CN104713234B (en) | 2018-09-28 |
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