CN204100593U - For the heat exchanger of gas-fired water heater - Google Patents
For the heat exchanger of gas-fired water heater Download PDFInfo
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- CN204100593U CN204100593U CN201420537187.4U CN201420537187U CN204100593U CN 204100593 U CN204100593 U CN 204100593U CN 201420537187 U CN201420537187 U CN 201420537187U CN 204100593 U CN204100593 U CN 204100593U
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Abstract
A kind of heat exchanger for gas-fired water heater, it comprises heat exchanger header board, plate after heat exchanger, heat exchanger first member plate, heat exchanger right end plate, heat exchanging fin, heat exchange straight tube, heat exchange straight tube is fixed in heat exchanger first member plate and heat exchanger right end plate through heat exchanging fin, heat exchanger header board, plate after heat exchanger, heat exchanger first member plate and heat exchanger right end plate surround the shell of heat exchanger, technical characteristics is that it also comprises heat exchanger left cover, heat exchanger right cover plate, heat exchanger first member plate and heat exchanger left cover integrally welded, heat exchanger right end plate and heat exchanger right cover plate integrally welded, and between heat exchanger first member plate and heat exchanger left cover, the separate passage being communicated with each heat exchange straight tube is formed between heat exchanger right end plate with heat exchanger right cover plate, this channel connection each heat exchange straight tube forms a complete heat exchange water route.Have and effectively can reduce water leakage fault, improve the reliability of product, and then extend the feature such as service life of heat exchanger.
Description
Technical field
The utility model relates to a kind of heat exchanger for gas-fired water heater, particularly a kind of heat exchanger for gas heater.
Background technology
In the prior art, be communicated with by " U " type pipe between heat exchange straight tube on heat exchanger, due to the contact that the connection between " U " type pipe and heat exchange straight tube is line and line, contact area is less, easily cause the soldering reliability of weld not high, after heat exchanger is arranged on and uses a period of time in gas heater, easily there is water leakage fault in weld.For overcoming these defects, the heat exchanger for gas-fired water heater is improved.
Summary of the invention
Technical problem to be solved in the utility model to provide a kind of heat exchanger for gas-fired water heater, and it can reduce the fault of leaking effectively, improves the reliability of product, and then extend the service life of heat exchanger.
The technical scheme that the utility model solves the employing of its technical problem is:
It comprises heat exchanger header board, plate after heat exchanger, heat exchanger first member plate, heat exchanger right end plate, heat exchanging fin, heat exchange straight tube, heat exchange straight tube is fixed in heat exchanger first member plate and heat exchanger right end plate through heat exchanging fin, heat exchanger header board, plate after heat exchanger, heat exchanger first member plate and heat exchanger right end plate surround the shell of heat exchanger, it also comprises heat exchanger left cover, heat exchanger right cover plate, heat exchanger first member plate and heat exchanger left cover integrally welded, heat exchanger right end plate and heat exchanger right cover plate integrally welded, between heat exchanger first member plate and heat exchanger left cover, the separate passage being communicated with each heat exchange straight tube is formed between heat exchanger right end plate with heat exchanger right cover plate, this channel connection each heat exchange straight tube forms a complete heat exchange water route.
After heat exchanger header board, heat exchanger, plate, heat exchanger first member plate, heat exchanger right end plate, heat exchanging fin, heat exchange straight tube, heat exchanger left cover and heat exchanger right cover plate are that stainless steel material is made.
Described heat exchanger left cover, heat exchanger right cover plate are provided with boss, and inwall and heat exchanger first member plate, the heat exchanger right end plate of boss form the separate passage being communicated with each heat exchange straight tube.
The channel connection that the inwall of every two heat exchange straight tubes and boss is formed, forms the heat exchange water route of two-tube parallel connection.
Described heat exchange straight tube is cross section is oval pipe.
After described heat exchanger header board and heat exchanger, plate is provided with tongue, and intrados and the heat exchange straight tube of tongue match and fit tightly.
After described heat exchanger header board, heat exchanger, plate is provided with flange, and flange is provided with locating hole, and heat exchanger first member plate and heat exchanger right end plate are provided with the positioning boss matched with locating hole.
On described heat exchanging fin, two ends, left and right are provided with flanging.
On described heat exchanging fin, the flanging at two ends, left and right narrows downwards gradually.
The through hole that on described heat exchanging fin, confession heat exchange straight tube passes is for shifting to install.
Described heat exchanging fin left and right sides are provided with otch.
The utility model compares produced beneficial effect with background technology:
1, because the utility model adopts heat exchanger left cover, heat exchanger right cover plate, heat exchanger first member plate and heat exchanger left cover integrally welded, heat exchanger right end plate and heat exchanger right cover plate integrally welded, and between heat exchanger first member plate and heat exchanger left cover, the separate passage being communicated with each heat exchange straight tube is formed between heat exchanger right end plate with heat exchanger right cover plate, this channel connection each heat exchange straight tube forms the structure in a complete heat exchange water route, between heat exchanger first member plate and heat exchanger left cover, bonding area between heat exchanger right end plate and heat exchanger right cover plate is larger, therefore it can reduce the fault of leaking effectively, improve the reliability of product, and then extend the service life of heat exchanger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the explosive view of Fig. 1.
Fig. 3 is the structural representation of the heat exchanger header board 1 in Fig. 2.
Fig. 4 is the structural representation of plate 2 after the heat exchanger in Fig. 2.
Fig. 5 is the structural representation of the heat exchanger right end plate 4 in Fig. 2.
Fig. 6 is the structural representation of the heat exchanger left cover 11 in Fig. 2.
Fig. 7 is the structural representation of the heat exchanger right cover plate 12 in Fig. 2.
Fig. 8 is the structural representation of the heat exchanging fin 5 in Fig. 2.
Detailed description of the invention
Shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, accompanying drawing 8, the present embodiment comprises plate 2, heat exchanger first member plate 3, heat exchanger right end plate 4, heat exchanging fin 5, heat exchange straight tube 6, heat exchanger left cover 11, heat exchanger right cover plate 12 after heat exchanger header board 1, heat exchanger.
Heat exchange straight tube 6 is fixed in heat exchanger first member plate 3 and heat exchanger right end plate 4 through heat exchanging fin 5, carries out expansion tube process make it be adjacent to mutually with the through hole 8 in heat exchanging fin 5 by heat exchanging straight tube 6.The through hole 8 that heat exchanging fin 5 passes for heat exchange straight tube 6 shifts to install, and is conducive to ensureing better heat transfer effect.
Heat exchanger first member plate 3 and heat exchanger left cover fit, by the mutual location fit of flange flange that heat exchanger first member plate 3 and heat exchanger left cover 11 are arranged.Heat exchanger right end plate 4 and heat exchanger right cover plate 12 fit, by the mutual location fit of flange flange that heat exchanger right end plate 4 and heat exchanger right cover plate 12 are arranged.
Heat exchanger first member plate 3 is integrally welded with heat exchanger left cover 11, heat exchanger right end plate 4 is integrally welded with heat exchanger right cover plate 12, and forming the separate passage being communicated with each heat exchange straight tube 6 between heat exchanger first member plate 3 with heat exchanger left cover 11, between heat exchanger right end plate 4 with heat exchanger right cover plate 12, this channel connection each heat exchange straight tube 6 forms a complete heat exchange water route.The utility model eliminates in prior art " U " type pipe being communicated with each heat exchange straight tube 6, because the weld of " U " type pipe and heat exchange straight tube 6 is linear contact lay, contact surface comparatively little Yi produces water leakage fault, therefore the utility model cancellation " U " type Guan Houneng effectively reduces the fault of leaking, and improves the reliability of product.
Heat exchanger left cover 11, heat exchanger right cover plate 12 can be provided with boss 13, and inwall and heat exchanger first member plate 3, the heat exchanger right end plate 4 of boss 13 form the separate passage being communicated with each heat exchange straight tube 6.
After heat exchanger header board 1, heat exchanger, plate 2, heat exchanger first member plate 3, heat exchanger right end plate 4, heat exchanging fin 5, heat exchange straight tube 6, heat exchanger left cover 11 and heat exchanger right cover plate 12 are made for stainless steel material.The material that the heat exchanger of gas heater of the prior art uses is generally copper material, because of the restriction of each producer technical conditions and cost, have by integral braze-welded oxygen-free copper technique, some copper surface leaching splicer skills.The heat of rated load lower water-heater input is certain, improve the quantity of heat given up under rated load, reducing water heater exhaust gas temperature is the important channel of improving heat output, and the reduction of exhaust gas temperature increases flue gas moisture content, humidity of flue gas increases the rising causing flue gas dew point temperature, moisture in flue gas is finally caused easily to be condensed out, and condensed water is in acid, corrosiveness is had to copper material heat exchanger, there is heat exchanger easily to be corroded by acid condensate water, shorten the defects such as the service life of heat exchanger.The main parts size of heat exchanger of the present utility model can be stainless steel material and makes, and can effectively avoid heat exchanger to be condensed aqueous corrosion and then the service life of prolongation heat exchanger.
On heat exchanging fin 5, two ends, left and right are provided with flanging 10, and flanging 10 is conducive to increasing the contact area of plate 2 after heat exchanging fin 5 and heat exchanger header board 1, heat exchanger.
On heat exchanging fin 5, the flanging 10 at two ends, left and right narrows downwards gradually, is conducive to heat in flue gas and is more fully absorbed by heat exchanging fin 5, is conducive to improving the thermal efficiency.
Heat exchanging fin 5 left and right sides can be provided with otch 9, are conducive to putting more solders when welding, and ensure that the left and right flanging of heat exchanging fin 5 is more reliable with welding of plate 2 after heat exchanger header board 1 and heat exchanger.
After heat exchanger header board 1, heat exchanger, plate 2, heat exchanger first member plate 3 and heat exchanger right end plate 4 surround the shell of heat exchanger.After heat exchanger header board 1, heat exchanger, plate 2 is provided with flange, and flange is provided with locating hole, and heat exchanger first member plate 3 and heat exchanger right end plate 4 are provided with the positioning boss matched with locating hole.
The channel connection that every two heat exchange straight tubes 6 are formed with the inwall of boss 13, forms the heat exchange water route of two-tube parallel connection, is conducive to reducing water route resistance.
Heat exchange straight tube 6 is oval pipe for cross section, effectively can improve the tube wall Contact area of high-temperature flue gas and heat exchange straight tube 6, is conducive to strengthening heat transfer intensity.
After heat exchanger header board 1 and heat exchanger, plate 2 is provided with tongue 7, and intrados and the heat exchange straight tube 6 of tongue 7 match and fit tightly, and being conducive to increases contact area, promotes heat transfer effect.
Due to contact that the connection between " U " type pipe and heat exchange straight tube 6 is line and line in prior art, contact area is less, easily cause the soldering reliability of weld not high, after heat exchanger is arranged on and uses a period of time in gas heater, easily there is water leakage fault in weld.
In the utility model, set up heat exchanger left cover 11, heat exchanger right cover plate 12, eliminate " U " of the prior art type pipe, heat exchanger first member plate 3 is integrally welded with heat exchanger left cover 11, heat exchanger right end plate 4 is integrally welded with heat exchanger right cover plate 12, form the separate passage being communicated with each heat exchange straight tube 6 between heat exchanger first member plate 3 with heat exchanger left cover 11, between heat exchanger right end plate 4 with heat exchanger right cover plate 12, and be communicated with each heat exchange straight tube 6 and form a complete heat exchange water route.What the utility model adopted is the contact in face and face, increases bonding area, makes two pieces of weld parts obtain more firm, substantially increase the soldering reliability of weld.After heat exchanger is arranged on and uses a period of time in gas heater, weld is not easy to occur water leakage fault, improves the sealing in whole heat exchange water route.Therefore the utility model cancellation " U " type Guan Houneng reduces the fault of leaking effectively, improves the reliability of product.
Claims (10)
1. the heat exchanger for gas-fired water heater, it comprises heat exchanger header board (1), plate (2) after heat exchanger, heat exchanger first member plate (3), heat exchanger right end plate (4), heat exchanging fin (5), heat exchange straight tube (6), heat exchange straight tube (6) is fixed in heat exchanger first member plate (3) and heat exchanger right end plate (4) through heat exchanging fin (5), heat exchanger header board (1), plate (2) after heat exchanger, heat exchanger first member plate (3) and heat exchanger right end plate (4) surround the shell of heat exchanger, it is characterized in that it also comprises heat exchanger left cover (11), heat exchanger right cover plate (12), heat exchanger first member plate (3) is integrally welded with heat exchanger left cover (11), heat exchanger right end plate (4) is integrally welded with heat exchanger right cover plate (12), and between heat exchanger first member plate (3) and heat exchanger left cover (11), the separate passage being communicated with each heat exchange straight tube (6) is formed between heat exchanger right end plate (4) with heat exchanger right cover plate (12), this channel connection each heat exchange straight tube (6) forms a complete heat exchange water route.
2. the heat exchanger for gas-fired water heater according to claim 1, after it is characterized in that described heat exchanger header board (1), heat exchanger, plate (2), heat exchanger first member plate (3), heat exchanger right end plate (4), heat exchanging fin (5), heat exchange straight tube (6), heat exchanger left cover (11) and heat exchanger right cover plate (12) are made for stainless steel material.
3. the heat exchanger for gas-fired water heater according to claim 1 and 2, it is characterized in that described heat exchanger left cover (11), heat exchanger right cover plate (12) is provided with boss (13), inwall and heat exchanger first member plate (3), the heat exchanger right end plate (4) of boss (13) form the separate passage being communicated with each heat exchange straight tube (6).
4. the heat exchanger for gas-fired water heater according to claim 3, the channel connection that its feature is formed with the inwall of boss (13) every two heat exchange straight tubes (6), forms the heat exchange water route of two-tube parallel connection.
5. the heat exchanger for gas-fired water heater according to claim 4, it is characterized in that described heat exchange straight tube (6) for cross section be oval pipe.
6. the heat exchanger for gas-fired water heater according to claim 5, after it is characterized in that described heat exchanger header board (1) and heat exchanger, plate (2) is provided with tongue (7), and intrados and the heat exchange straight tube (6) of tongue (7) match and fit tightly.
7. the heat exchanger for gas-fired water heater according to claim 6, after it is characterized in that described heat exchanger header board (1), heat exchanger, plate (2) is provided with flange, flange is provided with locating hole, and heat exchanger first member plate (3) and heat exchanger right end plate (4) are provided with the positioning boss matched with locating hole.
8. the heat exchanger for gas-fired water heater according to claim 7, is characterized in that the upper two ends, left and right of described heat exchanging fin (5) are provided with flanging (10).
9. the heat exchanger for gas-fired water heater according to claim 8, is characterized in that the flanging (10) at the upper two ends, left and right of described heat exchanging fin (5) narrows gradually downwards.
10. the heat exchanger for gas-fired water heater according to claim 9, is characterized in that the upper through hole (8) supplying heat exchange straight tube (6) to pass of described heat exchanging fin (5) is for shifting to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537187.4U CN204100593U (en) | 2014-09-18 | 2014-09-18 | For the heat exchanger of gas-fired water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537187.4U CN204100593U (en) | 2014-09-18 | 2014-09-18 | For the heat exchanger of gas-fired water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204100593U true CN204100593U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420537187.4U Active CN204100593U (en) | 2014-09-18 | 2014-09-18 | For the heat exchanger of gas-fired water heater |
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| Country | Link |
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| CN (1) | CN204100593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-09-18 CN CN201420537187.4U patent/CN204100593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104864600B (en) * | 2015-04-23 | 2018-09-11 | 广东万家乐燃气具有限公司 | A kind of all steel heat exchanger |
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| GR01 | Patent grant |