CN201145486Y - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN201145486Y CN201145486Y CNU2007200827113U CN200720082711U CN201145486Y CN 201145486 Y CN201145486 Y CN 201145486Y CN U2007200827113 U CNU2007200827113 U CN U2007200827113U CN 200720082711 U CN200720082711 U CN 200720082711U CN 201145486 Y CN201145486 Y CN 201145486Y
- Authority
- CN
- China
- Prior art keywords
- heat
- heat exchanger
- exchanger
- exchanger rig
- smoke evacuation
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000779 smoke Substances 0.000 claims abstract description 30
- 238000000605 extraction Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 17
- 239000003546 flue gas Substances 0.000 description 17
- 239000000567 combustion gas Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- -1 contain two kinds Chemical compound 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Chimneys And Flues (AREA)
Abstract
The utility model discloses a heat exchanger, which comprises a heat exchange device consisting of a heat exchange water pipe (8-10) and a heat absorption sheet (8-2). The heat exchanger is characterized in that: the lower end of the heat exchange device is integrately formed with a water collection chamber (8-1); the outside of the heat exchange device has a smoke hood, while the middle part is provided with a smoke evacuation tube; and the lower end of the smoke evacuation tube is communicated with the water collection chamber (8-1), while the upper end extends out of the heat exchange device. The heat exchanger has simple structure and high thermal efficiency, and integrates the functions of heat exchange, condensed water collection and smoke evacuation.
Description
Technical field
The utility model relates to the heat exchanger of condensed type combustion gas fast water heater, especially relates to the multifunctional heat exchanger of a kind of thermal-arrest exchange, condensed water collection and smoke evacuation function one.
Background technology
Be becoming tight energy day now, under the situation that price constantly rises, the condensed type combustion gas fast water heater is owing to than the high attention that is subjected to each side more than 12% of the general gas fast water heater thermal efficiency, existing many now companies release condensing type water heater, but the heat exchanger of present condensed type combustion gas fast water heater and the layout type of flow of flue gas mainly contain two kinds, and deficiency is all respectively arranged.
Two heat exchangers of the general employing of the heat exchanger of condensed type combustion gas fast water heater can reduce cost like this.The heat exchanger that carries out heat exchange for the first time is called main heat exchanger, and most exchange heat is finished at this heat exchanger, and the structure of this heat exchanger is identical with the heat exchanger of common water heater.The heat exchanger that carries out heat exchange for the second time is called time heat exchanger, mainly be that heat with the water vapour in the flue gas cements out, can produce a large amount of condensed waters in this process, this condensed water has certain acidity, so the necessary withstand corrosion of this heat exchanger, cost is than general heat exchanger height.And condensed water must collect the discharge water heater.
First kind of mode of layout type of the heat exchanger of condensed type combustion gas fast water heater is that main heat exchanger and time heat exchanger are arranged from top to bottom now, be provided with condensed water collecting device between the two-layer heat exchanger, flue gas all is from lower to upper when two heat exchangers flow, the problem of this kind layout maximum is that maximum place that condensed water produces is on the top at inferior heat exchanger, when condensed water along heat absorbing sheet when dirty, can form moisture film on the heat absorbing sheet surface, and flue gas and condensed water are relative motions, with regard to easier generation moisture film, moisture film can produce the moisture film thermal resistance, worsen the heat transfer between flue gas and the water, cause the condensed type combustion gas fast water heater thermal efficiency to reduce.And its condensed water collecting device complexity.
The second way is that main heat exchanger and time heat exchanger are arranged from top to bottom, flue gas also flows from top to bottom, this layout is to being the formation that can alleviate moisture film greatly, its condensed water collecting device is simple relatively, but its combustion flame also is downward, be unfavorable for flame stabilization control, and complete machine structure is more complicated.
The utility model content
The purpose of this utility model is in order to solve above-mentioned deficiency, to provide a kind of simple in structure, thermal efficiency height, the heat exchanger of thermal-arrest exchange, condensed water collection and smoke evacuation function one.
The technical scheme that the utility model is taked in order to address the above problem is as follows: a kind of heat exchanger, comprise the heat-exchanger rig that constitutes by heat exchanging water pipe and heat absorbing sheet, lower end at heat-exchanger rig is formed with collect cavity, outside at heat-exchanger rig is covered with petticoat pipe, be provided with the smoke evacuation tube at the heat-exchanger rig middle part, described smoke evacuation tube lower end communicates with collect cavity, and stretch out outside the heat-exchanger rig its upper end.
Described petticoat pipe constitutes frame structure by front shroud, back shroud, right baffle-plate, right baffle plate.
Described smoke evacuation tube is formed in heat-exchanger rig by left plate, right baffle plate, and the upper end of left plate and right baffle plate and the front shroud of petticoat pipe, back shroud upper end are connected to form the sealing smoke extraction chamber respectively.
This heat exchanger is as the secondary heat exchange device of condensed type combustion gas fast water heater, this heat exchanger mainly is made of heat-exchanger rig, collect cavity and outer cover, collect cavity is integrally formed in the lower end of heat-exchanger rig, and heat-exchanger rig is positioned at outer cover, and its upper end is in closed state after smoke pipe is installed in the outer cover upper end.Gap between heat-exchanger rig and the outer cover forms exhaust gases passes, the sealing smoke extraction chamber that the smoke evacuation tube forms in heat-exchanger rig also is exhaust gases passes, the lower end of smoke evacuation tube communicates with the collect cavity of heat-exchanger rig lower end, the upper end of smoke evacuation tube is stretched out heat-exchanger rig and is communicated with smoke pipe, the flue gas of bringing under the utility model heat-exchanger rig can only rise to the heat-exchanger rig upper end through the exhaust gases passes between heat-exchanger rig and the outer cover like this, because the outer cover of heat-exchanger rig is in closed state, the flue gas that is in the heat-exchanger rig upper end can only arrive collect cavity through heat absorbing sheet toward current downflow, discharges through the smoke evacuation tube at heat-exchanger rig middle part again.In addition,, between collect cavity and the heat absorbing sheet certain distance is arranged, can prevent that like this condensed water from producing at the collect cavity outer surface because collect cavity is positioned at the lower end of heat-exchanger rig.
The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:
1, the direction that flows of condensed water and the direction of flow of flue gas are the heat absorbing sheet of flowing through from top to bottom, the flowing of flue gas can not produce resistance to flowing of condensed water and return on the contrary and quicken condensed water and flow downward, and maximum place that condensed water produces concentrates on the bottom of heat absorbing sheet, therefore the formation that farthest alleviates moisture film has improved the thermal efficiency.
2, the whole burning structure below the utility model is the same with conventional gas heater, and flame also is upwards, helps flame stabilization control;
3, between the utility model collect cavity and the heat absorbing sheet certain distance is arranged, be that heat absorbing sheet is wrapped in wherein, condensed water all can be collected and be discharged into the outer neutralisation treatment of water heater, can prevent that again condensed water from producing at the collect cavity outer surface, flow to main heat exchanger, damage main heat exchanger.
4, the smoke evacuation tube is positioned in the middle of the heat-exchanger rig, makes things convenient for the smoke pipe of water heater to install.
Description of drawings
Structural representation in the condensing type water heater that Fig. 1 is installed in for the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the B-B sectional structure schematic diagram of Fig. 3;
Fig. 5 is the C-C sectional structure schematic diagram of Fig. 3;
Fig. 6 removes the three-dimensional structure schematic diagram of smoke extraction chamber 8-5 for the utility model.
Description of reference numerals
1 shell, 2 controllers, 3 water flow sensors, 4 gas path control valves
5 blower fans, 6 condensed water neutralising arrangements, 7 main heat exchangers
No. 8 heat exchanger 9 igniters 10 induction installations
11 inflow temperature sensors, 12 leaving water temperature sensors
13 water inlet pipes, 14 primary and secondary heat exchanger tube connectors, 15 outlet pipes
16 condensed water discharge pipes, 17 combustion chambers, 18 burners
8-1 collect cavity 8-2 heat absorbing sheet 8-3 right baffle-plate
8-4 flue left plate 8-5 smoke extraction chamber 8-6 flue right plate
8-7 right baffle-plate 8-8 front shroud 8-9 back shroud
8-10 heat exchanging water pipe 8-11 water inlet pipe 8-12 outlet pipe
KQ----air YQ0---burning back high-temperature flue gas
Flue gas after the flue gas YQ2-----heat exchange for the second time after the YQ1---heat exchange for the first time
The LN------condensed water
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
The structure of a kind of heat exchanger of the utility model such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, comprise the heat-exchanger rig that constitutes by heat exchanging water pipe 8-10 and heat absorbing sheet 8-2, be formed with collect cavity 8-1 in the lower end of heat-exchanger rig, outside at heat-exchanger rig is covered with petticoat pipe, be provided with the smoke evacuation tube at the heat-exchanger rig middle part, described smoke evacuation tube lower end communicates with collect cavity 8-1, and stretch out outside the heat-exchanger rig its upper end.Described petticoat pipe constitutes frame structure by front shroud 8-8, back shroud 8-9, right baffle-plate 8-3, right baffle plate 8-7.Described smoke evacuation tube is formed in heat-exchanger rig by left plate 8-9, right baffle plate 8-7, and the upper end of the upper end of left plate 8-9 and right baffle plate 8-7 and the front shroud 8-8 of petticoat pipe, back shroud 8-9 is connected to form sealing smoke extraction chamber 8-5 respectively.The utility model is provided with the protective layer that prevents the condensate water acidic corrosion on its surface.Heat exchanging water pipe 8-10, water inlet pipe 8-11, outlet pipe 8-12 are fixed on left baffle 8-3, the 8-7.
The utility model heat exchanger is placed directly on the main heat exchanger as condensed type combustion gas fast water heater secondary heat exchange device, burner 18 burnings produce high-temperature flue gas YQ0, the YQ0 main heat exchanger 7 of flowing through from bottom to top, the flue gas YQ1 (temperature has dropped to about 200 ℃) that comes out from main switch 7 is from the bottom up along the front and rear cover plate 8-8 of petticoat pipe, exhaust gases passes between 8-9 and the collect cavity 8-1 arrives the top of heat absorbing sheet 8-2, heat absorbing sheet becomes YQ2 flowing through from top to bottom, flue-gas temperature drops to below the dew point, produce condensed water LN, condensed water LN drops into collect cavity from top to bottom along heat absorbing sheet, because collect cavity 8-1 bottom surface is an inclined-plane, at its lowest part drainpipe is arranged, condensed water just flows out from drainpipe along the collect cavity bottom surface, flue gas YQ2 continues along flue left side plate 8-4 simultaneously, exhaust gases passes between 8-6 and the collect cavity 8-1 flows from bottom to top, discharges water heater by the chimney of smoke extraction chamber 8-5 at last.
Claims (3)
1, a kind of heat exchanger, comprise the heat-exchanger rig that constitutes by heat exchanging water pipe (8-10) and heat absorbing sheet (8-2), it is characterized in that: be formed with collect cavity (8-1) in the lower end of heat-exchanger rig, outside at heat-exchanger rig is covered with petticoat pipe, be provided with the smoke evacuation tube at the heat-exchanger rig middle part, described smoke evacuation tube lower end communicates with collect cavity (8-1), and stretch out outside the heat-exchanger rig its upper end.
2, heat exchanger according to claim 1 is characterized in that: described petticoat pipe constitutes frame structure by front shroud (8-8), back shroud (8-9), right baffle-plate (8-3), right baffle plate (8-7).
3, heat exchanger according to claim 1, it is characterized in that: described smoke evacuation tube is formed in heat-exchanger rig by left plate (8-9), right baffle plate (8-7), and the upper end of the upper end of left plate (8-9) and right baffle plate (8-7) and the front shroud (8-8) of petticoat pipe, back shroud (8-9) is connected to form sealing smoke extraction chamber (8-5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200827113U CN201145486Y (en) | 2007-12-26 | 2007-12-26 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200827113U CN201145486Y (en) | 2007-12-26 | 2007-12-26 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145486Y true CN201145486Y (en) | 2008-11-05 |
Family
ID=40082369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200827113U Expired - Fee Related CN201145486Y (en) | 2007-12-26 | 2007-12-26 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145486Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566985A (en) * | 2015-01-07 | 2015-04-29 | 无锡锡州机械有限公司 | Condensing type water channel circulating structure of gas heat exchanger |
| CN109049830A (en) * | 2018-08-27 | 2018-12-21 | 张艳琛 | A kind of quick heating plate of thermal forming device |
-
2007
- 2007-12-26 CN CNU2007200827113U patent/CN201145486Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566985A (en) * | 2015-01-07 | 2015-04-29 | 无锡锡州机械有限公司 | Condensing type water channel circulating structure of gas heat exchanger |
| CN104566985B (en) * | 2015-01-07 | 2018-04-06 | 无锡锡州机械有限公司 | Condensing gas heat exchanger channel circulation structure |
| CN109049830A (en) * | 2018-08-27 | 2018-12-21 | 张艳琛 | A kind of quick heating plate of thermal forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |