CN201425374Y - Secondary heat exchanger of condensing gas water heater - Google Patents
Secondary heat exchanger of condensing gas water heater Download PDFInfo
- Publication number
- CN201425374Y CN201425374Y CN200920039245XU CN200920039245U CN201425374Y CN 201425374 Y CN201425374 Y CN 201425374Y CN 200920039245X U CN200920039245X U CN 200920039245XU CN 200920039245 U CN200920039245 U CN 200920039245U CN 201425374 Y CN201425374 Y CN 201425374Y
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- secondary heat
- water heater
- assembly
- flue gas
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The utility model relates to a secondary heat exchanger of a condensing gas water heater, which mainly comprises a flue gas emission component, a secondary heat exchanger component, a condensate drainage pipe, a condensate collection tray and a heat insulating plate, wherein the secondary heat exchanger is welded with the flue gas emission component, the condensate collection tray is arranged below the secondary heat exchanger component, the condensate collection tray is welded with the flue gas emission component, and the condensate drainage pipe is welded on the flue gas emission component.The secondary heat exchanger of the condensing gas water heater is characterized in that a double-layered coil heat exchanger is arranged in the secondary heat exchanger component, and the heat insulating plate is fixed on the flue gas emission component by a self-tapping screw. The secondary heat exchanger of the condensing gas water heater can prevent the condensate from corroding the welding seams on a waterway system and the condensate from being vaporized again, improves the heat exchange efficiency, greatly prolongs the service life of the product, and ensures the long-termed effectiveness of the heat exchange effect.
Description
Technical field
The utility model relates to a kind of secondary heat exchanger of condensing gas water heater, specifically is used on the condensed type combustion gas water heater gas combustion product--and the latent heat of steam fully absorbs in the sensible heat of-high-temperature flue gas and the flue gas.
Background technology
The employed secondary heat exchanger of condensed type combustion gas water heater in the market has following several types: the copper finned tube heat exchanger of corrugated stainless steel tubing formula heat exchanger, stainless steel shell-and-tube heat exchanger, stainless steel finned tube heat exchanger and the protection of increase erosion shield.The bellows-type heat exchanger, its employed bellows very easily causes weld cracking because there is an axial weld seam from start to finish in product itself when bend pipe; And the corrosion of condensed water butt welded seam in use also can cause the breakage of body, and generation causes leaking.The stainless steel shell-and-tube heat exchanger because itself structure can produce a lot of weld seams during making, after corrosivity condensed water butt welded seam carries out long-term corrosion in the use, can cause welding seam failure and produces the infiltration phenomenon.The stainless steel finned tube heat exchanger, when it was made, copper scolder was adopted in the welding of pipe and fin, after machine moves a period of time, condensed water soak into corrosion can make between pipe and fin welding seam failure and lose good heat exchange effect.Increase the copper finned tube heat exchanger that erosion shield is handled, because manufacture craft imperfection and complexity, coating is difficult to reach homogeneity and putting in place fully on parts, thereby has lost complete protective action; Because the influence of environment for use, machine be after operation a period of time, coating can produce to peel off and come off and lose protection effect with the copper body.Simultaneously, this series products makes condensed water vaporize once again owing to do not design thermal insulation board, has influenced the heat exchange effect.More than several heat exchangers because the many weld seams, the defective in the design and the many factors of technologic imperfection that produce when the weld seam of product existence itself, production, influenced the heat exchange effect of heat exchanger, life of product also is difficult to be ensured for a long time.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby provide a kind of vaporization once again that can avoid condensed water the burn into of weld seam on the water circuit system to be prevented condensed water, improved heat exchange efficiency, greatly prolong the service life of product, ensured the secondary heat exchanger of condensing gas water heater of heat exchange effect long-term effectiveness.
The technical scheme that provides according to the utility model, secondary heat exchanger of condensing gas water heater comprises fume emission assembly, secondary heat exchanger assembly, drip pipe, condensed water catch tray, secondary heat exchanger assembly and the welding of fume emission assembly, be positioned at secondary heat exchanger assembly below and be provided with the condensed water catch tray, condensed water catch tray and the welding of fume emission assembly, drip pipe is welded on the fume emission assembly, and feature is: be provided with the duplex coil heat exchanger in the described secondary heat exchanger assembly; Described fume emission assembly and thermal insulation board are fixed with self-tapping screw.
Described fume emission assembly is with the fixing thermal insulation board of self-tapping screw.
Described duplex coil heat exchanger is spiraled by the oblate pipe levels of single stainless steel jointless and forms.
Compared with the prior art the utility model has the following advantages:
During 1, owing to the stainless steel duplex coil heat exchanger in making the secondary heat exchanger assembly, adopted the oblate tubular construction of stainless steel jointless, so eliminated of the influence of the weld seam of product existence itself for life of product.
During 2, owing to the stainless steel duplex coil heat exchanger in making the secondary heat exchanger assembly, the structure that has adopted the oblate pipe of single stainless steel jointless to spiral up and down and form, the ingenious configuration that has solved water supply connector and water out adapter.There is not weld seam on the feasible water circuit system that is in the corrosive atmosphere of this structure, avoided of the influence of corrosive condensed water, ensured the chronicity of life of product water circuit system; Product structure and manufacture craft have been simplified.
During 3, owing to the stainless steel duplex coil heat exchanger in making the secondary heat exchanger assembly; adopt the oblate pipe of corrosion resistant high-quality stainless steel jointless; do not need the protection of erosion shield, manufacture craft is simplified, and product quality, life of product have obtained long-term guarantee.
During 4, owing to the stainless steel duplex coil heat exchanger in making the secondary heat exchanger assembly, adopt the oblate tubular construction of stainless steel jointless, strengthened the heat exchange effect, simplified product structure.
5, owing to when making secondary heat exchanger, increased the thermal insulation board structure, not only play the water conservancy diversion effect but also prevented the vaporization once again of condensed water, heat exchange efficiency significantly improves.
Description of drawings
Fig. 1 is the utility model secondary heat exchanger of condensing gas water heater overall structure schematic diagram.
Fig. 2, Fig. 3, Fig. 4 are stainless steel duplex coil heat exchanger structure schematic diagrames in the utility model secondary heat exchanger assembly.
Fig. 5 is the utility model secondary heat exchanger of condensing gas water heater thermal insulation board structural representation.
Fig. 6 is the utility model secondary heat exchanger of condensing gas water heater operation principle schematic diagram.
The specific embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As Fig. 1～shown in Figure 6, comprising: fume emission assembly 1, secondary heat exchanger assembly 2 (water supply connector 25 and water out adapter 24), drip pipe 3, condensed water catch tray 4, thermal insulation board 5 etc.
The utility model secondary heat exchanger of condensing gas water heater is to be used for condensed type combustion gas water heater.Secondary heat exchanger assembly 2 and 1 welding of fume emission assembly.Be provided with duplex coil heat exchanger 21 in the described secondary heat exchanger assembly 2, described duplex coil heat exchanger 21 is spiraled by the oblate pipe levels of single stainless steel jointless and forms; Duplex coil heat exchanger 21 is welded on the secondary heat exchanger assembly 2 with water supply connector 25 and water out adapter 24, be positioned at secondary heat exchanger assembly 2 belows and be provided with condensed water catch tray 4, condensed water catch tray 4 and 1 welding of fume emission assembly, drip pipe 3 is welded on the fume emission assembly 1, and described fume emission assembly 1 is fixed with thermal insulation board 5 usefulness self-tapping screws.
The operation principle of the utility model secondary heat exchanger of condensing gas water heater and the course of work:
The high-temperature flue gas that produces during the condensed type combustion gas water heater operation also has the part energy of equating not to be absorbed and used in this flue gas after the heat exchange of process main heat exchanger.This flue gas is upwards discharged by secondary heat exchanger assembly 2 through the below of thermal insulation board 5, fume emission assembly 1 arrival secondary heat exchanger assembly 2; Simultaneously, water enters secondary heat exchanger assembly 2 by the water supply connector 25 that is arranged on the secondary heat exchanger assembly 2, flows out by the water out adapter 24 that is arranged on the secondary heat exchanger assembly 2.The flue gas of the water of secondary heat exchanger assembly 2 internal circulations and the 2 outside circulations of secondary heat exchanger assembly is finished heat exchange by tube wall, and the sensible heat of flue gas and the latent heat of the steam in the flue gas are absorbed and used; The generation condensed water that condenses that releases energy of the steam in the flue gas simultaneously, the condensed water of generation is collected by condensed water catch tray 4 again and is discharged by drip pipe 3.Because the heat-blocking action of thermal insulation board 5 has been avoided the vaporization once again of condensed water.
In sum, the utility model secondary heat exchanger of condensing gas water heater is owing to adopted stainless steel duplex coil heat exchanger and thermal insulation board structure, avoided condensed water that the burn into of weld seam on the water circuit system has been improved heat exchange efficiency, simplified product structure and manufacture craft, life of product and heat exchange effect have all obtained long-term guarantee.
Claims (2)
1, a kind of secondary heat exchanger of condensing gas water heater, comprise fume emission assembly (1), secondary heat exchanger assembly (2), drip pipe (3), condensed water catch tray (4), described secondary heat exchanger assembly (2) and fume emission assembly (1) welding, be positioned at secondary heat exchanger assembly (2) below and be provided with condensed water catch tray (4), condensed water catch tray (4) and fume emission assembly (1) welding, drip pipe (3) is welded on the fume emission assembly (1), it is characterized in that: be provided with duplex coil heat exchanger (21) in the described secondary heat exchanger assembly (2); Described fume emission assembly (1) is fixed with self-tapping screw with thermal insulation board (5).
2, secondary heat exchanger of condensing gas water heater according to claim 1 is characterized in that described duplex coil heat exchanger (21) is spiraled by the oblate pipe levels of single stainless steel jointless to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920039245XU CN201425374Y (en) | 2009-04-28 | 2009-04-28 | Secondary heat exchanger of condensing gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920039245XU CN201425374Y (en) | 2009-04-28 | 2009-04-28 | Secondary heat exchanger of condensing gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425374Y true CN201425374Y (en) | 2010-03-17 |
Family
ID=42024825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920039245XU Expired - Fee Related CN201425374Y (en) | 2009-04-28 | 2009-04-28 | Secondary heat exchanger of condensing gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425374Y (en) |
-
2009
- 2009-04-28 CN CN200920039245XU patent/CN201425374Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20130428 |