CN203837277U - Integrated stainless steel heat exchanger of gas water heater - Google Patents
Integrated stainless steel heat exchanger of gas water heater Download PDFInfo
- Publication number
- CN203837277U CN203837277U CN201420258436.6U CN201420258436U CN203837277U CN 203837277 U CN203837277 U CN 203837277U CN 201420258436 U CN201420258436 U CN 201420258436U CN 203837277 U CN203837277 U CN 203837277U
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- Prior art keywords
- heat exchanger
- exchanger tube
- elongated member
- tube
- gas heater
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Abstract
The utility model provides an integrated stainless steel heat exchanger of a gas water heater. The integrated stainless steel heat exchanger comprises a fence and a plurality of heat exchange pipes penetrating through the fence. The ends, penetrating out of the fence, of the heat exchange pipes are provided with water collection boxes which connect the heat exchange pipes into a continuous runner. Long-strip-shaped parts are arranged in at least one row of heat exchange pipes close to a high temperature heating area. The long-strip-shaped parts are packaged in the heat exchange pipes through the water collection boxes. The fence, the heat exchange pipes, the water collection boxes and the long-strip-shaped parts are assembled and welded to form an integrated structure. The integrally-welded stainless steel heat exchanger is simple in structure, easy to machine and small in size, and sealing performance and corrosion resistance can both be greatly improved; the water flow field in pipes of the rapid gas water heater is changed and existing uneven distribution of water temperature is eliminated through the long-strip-shaped parts, and therefore scaling is reduced, and the service life of the heat exchanger is prolonged.
Description
Technical field
The utility model relates to field of water heaters, is specifically related to the integrated stainless heat exchanger of a kind of gas heater.
Background technology
Heat exchanger that in prior art, gas heater adopts is general is just the heat exchanger of copper product, heat exchanger comprises and encloses frame and Duo Gen through the heat exchanger tube that encloses frame, pass the heat exchanger tube termination of enclosing outside frame and connect between two by " U " type joint, thereby make all heat exchanger tubes form continuous runner.This structure is in process, and weld separately each joint and heat exchanger tube termination, and complicated operation, expends man-hour, and welding quality uniformity is poor.Prolongation along with service time, heat exchanger materials itself can be subject to the corrosion of micro-nitrogen oxide (NOx) aqueous solution that condenses in flue gas in normal use procedure, thereby greatly reduce the performance of main heat exchanger, thermal efficiency reduction, stack gas emissions exceed standard (being mainly carbon monoxide emission concentration over-standard) have been there is, the heat exchanger perforation quality problems such as leak, not only make the spendable life-span of heat exchanger greatly reduce, also can have a strong impact on the security that product is used.
In addition, existing heat exchanger for gas water heaters is (i.e. the region of the close burner thermal treatment zone) in high-temperature region, water in heat exchanger because of the temperature field of the distribution of water temperature in pipe inhomogeneous, water temperature near tube wall surface is higher, easily fouling, cause heat exchanger reduction of heat exchange efficiency, reduce service life.
Utility model content
The utility model provides a kind of gas heater integrated stainless heat exchanger, and complicated to solve existing heat exchanger processing, welding quality is poor, and the problem of easy fouling.
For this reason, the utility model proposes the integrated stainless heat exchanger of a kind of gas heater, comprise: enclose the heat exchanger tube that frame, many enclose frame described in passing, the described heat exchanger tube end of enclosing described in passing outside frame is provided with collecting box, and described collecting box is linked to be continuous runner by heat exchanger tube described in each; Close in the described heat exchanger tube of at least one row of the thermal treatment zone and be provided with elongated member; Described collecting box is packaged in described strip member in described heat exchanger tube; The described structure that is welded as a whole after frame, heat exchanger tube, collecting box and elongated member assembling of enclosing.
The integrated stainless heat exchanger of the utility model gas heater is made by stainless steel, adopt collecting box structure to replace existing a plurality of " U " type joint, and strip member is packaged in the heat exchanger tube of the contiguous thermal treatment zone by collecting box, enclose frame, heat exchanger tube, collecting box and the elongated member of heat exchanger are assembled into one and increase after solder flux in junction, and integral body enters smelting furnace and welds.Make so integrated stainless heat exchanger processing simple, welding quality is high, closing on the strip member encapsulating in the heat exchanger tube of the thermal treatment zone reduces the circulation area of these heat exchanger tubes, change the flow field of water in these heat exchanger tubes, near tube wall, water temperature rising amplitude reduces, thereby it is too fast that the heat exchanger tube tube wall water temperature of avoiding closing on the thermal treatment zone raises, water temperature is too high causes in heat exchanger tube the easily problem of fouling.
Further, described strip member is round bar shape.
Further, the stainless steel tube that described strip member is closed at both ends.
Further, described stainless steel tube two ends and described heat exchanger tube or described collecting box are welded as a whole.
Further, described strip member and described heat exchanger tube coaxially arrange, and the spacing of described strip member and described heat exchanger tube is between 1.5 to 4mm.
Further, described strip member has reduced the circulation area of described heat exchanger tube more than 5%.
Further, described heat exchanger tube comprises main heat exchange pipe and condensing heat-exchanging pipe, and described main heat exchange pipe one side is closed on the described thermal treatment zone, and opposite side is described condensing heat-exchanging pipe, between described main heat exchange pipe and described condensing heat-exchanging pipe, is provided with condensed-water collection device.
Two-part heat exchanger of the prior art (being main heat exchanger and condensing heat exchanger), main heat exchanger is made by copper product conventionally, and condensing heat exchanger is made by stainless steel material conventionally.Main heat exchanger and condensing heat exchanger form by heat exchanging part and the frame that encloses that is fixed on its periphery, and enclosing between frame of main heat exchanger and condensing heat exchanger links together by parts such as flange, screw and clamps.This syndeton size is large, use part is many, the decay resistance of different part materials is also different, for preventing that condensed water from causing condensed water leakage-proof or whole heat exchanger assembly being produced to the quality risk of corrosion the corrosion of part, also higher to the sealing requirements of syndeton, such as adopting high temperature sealing material to prevent the leakage of condensed water.This just makes all more complicated of the structure of existing two-part heat exchanger and processing technology.One of the integrated stainless heat exchanger of the utility model gas heater is enclosed in frame and is provided with main heat exchange pipe, condensing heat-exchanging pipe and current-collecting device, encloses frame collecting box is housed outward, will after above-mentioned assembling parts, by brass solder one-shot forming, complete the processing of heat exchanger assembly.Adopt heat exchanger assembly structure and the processing of this scheme processing simple, volume is little, and sealing and decay resistance all improve greatly, more obvious with respect to existing two-part heat exchanger advantage.
Further, described collecting box comprises tube sheet and end plate, described tube sheet is connected with heat exchanger tube termination described in each by the through hole corresponding with heat exchanger tube termination described in each, described end plate and the laminating of described tube sheet, and described end plate is provided with the groove that heat exchanger tube described in each is linked to be to continuous runner.
Further, the described heat exchanger tube that encloses frame described in being positioned at is provided with stainless steel fin, described in enclose the structure that is welded as a whole after frame, heat exchanger tube, collecting box, elongated member and fin assembling.
Further, the Surface Machining of elongated member has turbulence structure.
Further, described elongated member is the stainless steel tube of one end sealing, offers porose at stainless steel pipe surface.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the integrated stainless heat exchanger of gas heater of the utility model embodiment;
Fig. 2 is the side-looking structural representation of the integrated stainless heat exchanger of gas heater of the utility model embodiment;
Fig. 3 is the structural representation of the heat exchanger tube that closes on the thermal treatment zone of the utility model embodiment;
Fig. 4 is the structural representation of the first elongated member of the utility model embodiment;
Fig. 5 is the main TV structure schematic diagram of the tube sheet of the utility model embodiment;
Fig. 6 is the structural representation of the end plate of the utility model embodiment;
Fig. 7 is the main TV structure of the collecting box of the utility model embodiment;
Fig. 8 is the side-looking structure of the collecting box of the utility model embodiment;
Fig. 9 is the side-looking structural representation of the tube sheet of the utility model embodiment;
Figure 10 is the A-A sectional structure schematic diagram of Fig. 1;
Figure 11 is the main TV structure schematic diagram of the second elongated member of the utility model embodiment;
Figure 12 is the plan structure schematic diagram of the second elongated member of the utility model embodiment;
Figure 13 is the main TV structure schematic diagram of the third elongated member of the utility model embodiment;
Figure 14 is the plan structure schematic diagram of the third elongated member of the utility model embodiment.
Drawing reference numeral explanation:
1 encloses heat exchanger tube 910 elongated member 71 tube sheet 710 through hole 715 flange 73 end plate 730 groove 9101 hole 9103 twisted strip 9105 spiral windings that frame 3 main heat exchange pipe 4 condensing heat-exchanging pipe 7 collecting box 9 heat exchanger tubes 91 close on the thermal treatment zone
The specific embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing explanation the utility model.
As shown in Fig. 1, Figure 10 and Fig. 2, the integrated stainless heat exchanger of gas heater of the utility model embodiment, comprise: enclose the heat exchanger tube 9 that frame 1 and Duo Gen enclose frame 1 described in passing, the described heat exchanger tube end of enclosing described in passing outside frame 1 is provided with collecting box 7, and described collecting box 7 is linked to be continuous runner by heat exchanger tube described in each 9; Close in the described heat exchanger tube 91 of at least one row of the thermal treatment zone and be provided with elongated member 910, described heat exchanger tube 91 is from the thermal treatment zone or the nearest row's heat exchanger tube of burner, the heat exchanger tube in this region temperature in the many all heat exchanger tubes of the integrated stainless heat exchanger of gas heater is the highest, higher easy fouling; Described collecting box 7 is packaged in described elongated member 910 in described heat exchanger tube 9; Described frame 1, heat exchanger tube 9, collecting box 7 and the elongated member 910 of enclosing is the structure that is welded as a whole after stainless steel material assembling, and making so upper is integral manufacturing, and structure is more firmly solid.Because elongated member is arranged in the heat exchanger tube 91 that closes on the thermal treatment zone, can reduce like this circulation area of heat exchanger tube, improve water velocity in heat exchanger tube, prevent high-temperature region heating water temperature over-high, reduce fouling.Certainly, in order better to reduce fouling, not only can in the described heat exchanger tube 91 of at least one row who closes on the thermal treatment zone, be provided with elongated member 910, can also from the thermal treatment zone, in the heat exchanger tube away from, be provided with elongated member 910 at other regions or other.
Further, as shown in Figure 3 and Figure 4, described elongated member 910 is round bar shape, is convenient to make and install, and can effectively control the circulation area of heat exchanger tube.
Further, as shown in Figure 4, the stainless steel tube that described elongated member 910 is closed at both ends, in elongated member 910, no longer include the passage of liquid communication, to reach the object of the circulation area of controlling heat exchanger tube, and elongated member self intensity is higher, not fragile.
And then as Figure 11 and Figure 12, elongated member 910 can be adopted as the stainless steel tube of one end sealing, offers porose or aperture or pitting 9101 at stainless steel pipe surface, to change water flow field, upsets the situation of original distribution of water temperature inequality.
And then as Figure 13 and Figure 14, the Surface Machining of the elongated member 910 of another embodiment has turbulence structure.This elongated member 910 comprises: tie 9103 and be wrapped in the spiral winding 9105 on twisted strip 9103.Twisted strip 9103 can be for stainless steel substrates is twisted into spirality, and the frame mode of this elongated member can have turbulence structure, reaches good flow-disturbing effect, realizes better heat exchange.
Further, described stainless steel tube two ends and described heat exchanger tube 9 or described collecting box 7 are welded as a whole, to realize fixing that integral type connects and elongated member 910 is stable.
Further, described elongated member 910 coaxially arranges with described heat exchanger tube 91, like this, elongated member 910 is even with the spacing of heat exchanger tube 91 of closing on the thermal treatment zone, the interior water stream channel of heat exchanger tube 91 that assurance closes on the thermal treatment zone is evenly distributed, to avoid the inhomogeneous and scale formation that produces of the interior water stream channel of heat exchanger tube 91.The spacing of described elongated member 910 and described heat exchanger tube, between 1.5 to 4mm, can guarantee the normal circulation area of heat exchanger tube, can guarantee again the effect of the raising water velocity of elongated member 910.
Further, the internal diameter of the first heat exchanger tube is for example 15 to 22mm, the area of elongated member 910 accounts for the more than 5% of area of the inner chamber of the heat exchanger tube that closes on the thermal treatment zone, described elongated member has reduced the circulation area of described heat exchanger tube more than 5%, and like this, the water velocity of heat exchanger tube improves comparatively obvious, water temperature rising amplitude reduces, identical adds under tight experiment condition, the fouling in 3 days of existing heat exchanger, and the utility model heat exchanger surpasses 45 genius foulings.
Further, as shown in figure 10, described heat exchanger tube comprises main heat exchange pipe 3 and condensing heat-exchanging pipe 4, described main heat exchange pipe 3 downsides close on the described thermal treatment zone, upside is described condensing heat-exchanging pipe 4, is provided with condensed-water collection device, to collect condensed water between described main heat exchange pipe 3 and described condensing heat-exchanging pipe 4.
Further, as shown in Fig. 2, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, described collecting box 7 comprises tube sheet 71 and end plate 73, the one side of described tube sheet 71 is connected with heat exchanger tube termination described in each by the through hole 710 corresponding with heat exchanger tube termination described in each, the plane laminating of the another side of described tube sheet 71 and described end plate 73, described end plate 73 is provided with groove 730, and the cavity of groove 730 is communicated with two through holes of corresponding tube sheet 71, thereby the heat exchanger tube that two through holes are connected is communicated with.A plurality of grooves 730 are linked to be continuous runner by all heat exchanger tubes 9.
As shown in Fig. 5 and Fig. 9, tube sheet 71 is for example rectangle, makes flange 715 around, and is provided with a plurality of projections in flange inner side; End plate is embedded to tube sheet flange inner side, and by the projection of tube sheet, end plate 73 is located.Tube sheet 71 is provided with flange around at through hole 710, and through hole 710 is pore in other words, to connect heat exchanger tube termination.
Further, the described heat exchanger tube 9 that encloses frame 1 described in being positioned at is provided with a plurality of stainless steel fins, to carry out effective heat exchange, the described structure that is welded as a whole after frame, heat exchanger tube, collecting box, elongated member and fin assembling of enclosing, one-body molded, integral production, reduces process time.
The utility model improves flow velocity by taking gas instantaneous water heater pipe inner volume to reduce circulation area, thereby reduces fouling, and is provided the service life of heat exchanger.
The foregoing is only the schematic specific embodiment of the utility model, not in order to limit scope of the present utility model.For each part of the present utility model can mutually combine under the condition of not conflicting; any those skilled in the art; do not depart from equivalent variations and the modification of having done under the prerequisite of design of the present utility model and principle, all should belong to the scope of the utility model protection.
Claims (11)
1. the integrated stainless heat exchanger of gas heater, comprise: enclose the heat exchanger tube that frame and Duo Gen enclose frame described in passing, it is characterized in that, the described heat exchanger tube end of enclosing described in passing outside frame is provided with collecting box, and described collecting box is linked to be continuous runner by heat exchanger tube described in each; Close in the described heat exchanger tube of at least one row of the thermal treatment zone and be provided with elongated member; Described collecting box is packaged in described elongated member in described heat exchanger tube; The described structure that is welded as a whole after frame, heat exchanger tube, collecting box and elongated member assembling of enclosing.
2. the integrated stainless heat exchanger of gas heater as claimed in claim 1, is characterized in that, described elongated member is round bar shape.
3. the integrated stainless heat exchanger of gas heater as claimed in claim 2, is characterized in that, the stainless steel tube that described elongated member is closed at both ends.
4. the integrated stainless heat exchanger of gas heater as claimed in claim 3, is characterized in that, described stainless steel tube two ends with described in close on the thermal treatment zone at least one row's heat exchanger tube or described collecting box be welded as a whole.
5. the integrated stainless heat exchanger of gas heater as claimed in claim 2, is characterized in that, described elongated member and described heat exchanger tube coaxially arrange, and the spacing of described elongated member and described heat exchanger tube is between 1.5 to 4mm.
6. the integrated stainless heat exchanger of gas heater as claimed in claim 1, is characterized in that, described elongated member has reduced the circulation area of described heat exchanger tube more than 5%.
7. the integrated stainless heat exchanger of gas heater as claimed in claim 1, it is characterized in that, described heat exchanger tube comprises main heat exchange pipe and condensing heat-exchanging pipe, described main heat exchange pipe one side is closed on the described thermal treatment zone, opposite side is described condensing heat-exchanging pipe, between described main heat exchange pipe and described condensing heat-exchanging pipe, is provided with condensed-water collection device.
8. the integrated stainless heat exchanger of gas heater as claimed in claim 1, it is characterized in that, described collecting box comprises tube sheet and end plate, described tube sheet is connected with heat exchanger tube termination described in each by the through hole corresponding with heat exchanger tube termination described in each, described end plate and the laminating of described tube sheet, described end plate is provided with the groove that heat exchanger tube described in each is linked to be to continuous runner.
9. the integrated stainless heat exchanger of gas heater as claimed in claim 1, it is characterized in that, the described heat exchanger tube that encloses frame described in being positioned at is provided with stainless steel fin, described in enclose the structure that is welded as a whole after frame, heat exchanger tube, collecting box, elongated member and fin assembling.
10. the integrated stainless heat exchanger of gas heater as claimed in claim 1, is characterized in that, the Surface Machining of described elongated member has turbulence structure.
11. integrated stainless heat exchangers of gas heater as claimed in claim 1, is characterized in that, described elongated member is the stainless steel tube of one end sealing, offers porose at stainless steel pipe surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258436.6U CN203837277U (en) | 2014-05-20 | 2014-05-20 | Integrated stainless steel heat exchanger of gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258436.6U CN203837277U (en) | 2014-05-20 | 2014-05-20 | Integrated stainless steel heat exchanger of gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837277U true CN203837277U (en) | 2014-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420258436.6U Withdrawn - After Issue CN203837277U (en) | 2014-05-20 | 2014-05-20 | Integrated stainless steel heat exchanger of gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837277U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994579A (en) * | 2014-05-20 | 2014-08-20 | 艾欧史密斯(中国)热水器有限公司 | Gas water heater integrated stainless steel heat exchanger |
| CN104864600A (en) * | 2015-04-23 | 2015-08-26 | 广东万家乐燃气具有限公司 | Heat exchanger made by full stainless steel |
| CN106989512A (en) * | 2017-05-10 | 2017-07-28 | 浙江广涛卫厨有限公司 | condensing secondary heat exchanger |
| CN112240725A (en) * | 2019-07-18 | 2021-01-19 | 芜湖美的厨卫电器制造有限公司 | Turbulence piece for heat exchange device, heat exchange device with turbulence piece and gas water heater with turbulence piece |
-
2014
- 2014-05-20 CN CN201420258436.6U patent/CN203837277U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994579A (en) * | 2014-05-20 | 2014-08-20 | 艾欧史密斯(中国)热水器有限公司 | Gas water heater integrated stainless steel heat exchanger |
| CN103994579B (en) * | 2014-05-20 | 2017-08-01 | 艾欧史密斯(中国)热水器有限公司 | The integrated stainless heat exchanger of gas heater |
| CN104864600A (en) * | 2015-04-23 | 2015-08-26 | 广东万家乐燃气具有限公司 | Heat exchanger made by full stainless steel |
| CN106989512A (en) * | 2017-05-10 | 2017-07-28 | 浙江广涛卫厨有限公司 | condensing secondary heat exchanger |
| CN106989512B (en) * | 2017-05-10 | 2023-11-14 | 浙江广涛卫厨有限公司 | Condensing secondary heat exchanger |
| CN112240725A (en) * | 2019-07-18 | 2021-01-19 | 芜湖美的厨卫电器制造有限公司 | Turbulence piece for heat exchange device, heat exchange device with turbulence piece and gas water heater with turbulence piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20170801 |
|
| AV01 | Patent right actively abandoned |