CN103712330A - Double-layer tube-in-tube type gas water heater heat exchange system - Google Patents
Double-layer tube-in-tube type gas water heater heat exchange system Download PDFInfo
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- CN103712330A CN103712330A CN201310756530.4A CN201310756530A CN103712330A CN 103712330 A CN103712330 A CN 103712330A CN 201310756530 A CN201310756530 A CN 201310756530A CN 103712330 A CN103712330 A CN 103712330A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000007789 gas Substances 0.000 description 23
- 238000003287 bathing Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
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Abstract
The invention relates to the field of gas water heaters, in particular to a gas water heater heat exchange system, and discloses a double-layer tube-in-tube type gas water heater heat exchange system. The double-layer tube-in-tube type gas water heater heat exchange system comprises a water tank shell body, a water inlet tube and a heat exchanger, a water inlet of the heat exchanger is communicated with the water inlet tube, a water outlet of the heat exchanger is communicated with a hot water outlet tube, the heat exchanger is a plate-fin heat exchanger and comprises a heat exchange tube and heat exchange fins, the heat exchange tube is formed by connecting an inner water tube and an outer water tube in a sleeved mode, and a clearance is reserved between the inner water tube and the outer water tube to form a main water flow channel. Independent water channels are arranged in a front end cover and a rear end cover and are communicated with the inner water tube and the outer water tube respectively, and a solenoid valve is arranged in the water channel, communicated with the inner water tube, of the front end cover. According to the double-layer tube-in-tube type gas water heater heat exchange system, the passage of the inner water tube can be selectively opened, the heat exchange efficiency of the heat exchanger is lowered to ensure that a user can take a bath normally, the application range of a water heater is widened, and the water heater can be more suitable for working in areas with poor conditions and low water pressure.
Description
Technical field
The present invention relates to gas heater field, relate in particular to a kind of gas heater heat-exchange system.
Background technology
At present, China's domestic gas instantaneous water heater development is very fast, various in style, but its operation principle basic structure is roughly the same.Typical water heater generally comprises following components: shell, air-feeding-exhausting apparatus, burner, heat exchanger, air-control device, water-control device, gas linkage apparatus for gas and control system.
The effect of existing gas linkage apparatus for gas is to guarantee at hydraulic pressure enough, and when being introduced into heat exchanger and flowing, gas control valve just can be opened; And stop or during insufficient pressure, the air feed path that automatically cuts off combustion gas, prevents from burning out equipment because of lack of water i.e. usually said " water arrives, gas to " when current;
In order to realize the adjusting to temperature, in prior art, all by changing quantity combusted and air inflow, realize, although this mode can be applied smoothly in most of occasions, when the hydraulic pressure of subscriber household is too small, water heater often cannot normally be worked.When some occasion hydraulic pressure hour, because the existence of gas linkage apparatus for gas, only have hot water tap is reached to maximum, burner ability smooth ignition, and now because only opened hot water, even the aperture of burner is transferred to minimum, sometimes water temperature also can seem higher, directly bathing, so also need to open cold water faucet, the hydraulic pressure of hot and cold water tap in fact shares for user's water inlet pipe, when script user hydraulic pressure is just lower, cold water one has reduced the flow of hot water little, cause burner to be controlled and close by gas linkage apparatus for gas, just bathing smoothly of user like this, in prior art, to the adjusting of water temperature, be all to realize by adjusting the aperture of burner and changing cold water flow, in the situation that burner aperture is minimum, in existing gas heater, also cannot solve problems.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Double-layer sleeve-type gas heater heat-exchange system, when user's discharge too low, burner reaches minimum of a value leaving water temperature when still too high, controller is just controlled by the aperture to magnetic valve, open the path of inner conduit, the heat exchange efficiency that reduces heat exchanger, to guarantee normally bathing of user, has improved the range of application of water heater.
The present invention is achieved in that a kind of Double-layer sleeve-type gas heater heat-exchange system, comprise tank shell, water inlet pipe and heat exchanger, described water inlet pipe is close on the lower house that is coiled in tank shell, described heat exchanger is fixedly mounted in the upper shell of tank shell, the water inlet of heat exchanger is communicated with water inlet pipe, the delivery port of heat exchanger is communicated with hot water outlet pipe, described heat exchanger is plate-fin heat exchanger, heat exchanger comprises heat exchanger tube and heat exchange fin, heat exchanger tube has inside and outside two water pipes to be mutually socketed to form, between inner conduit and outer water pipe, leave gap and form main flow channel, in described drive end bearing bracket and rear end cap, being provided with independently water channel is communicated with respectively with inside and outside two water pipes, in the water channel that wherein drive end bearing bracket is connected with inner conduit, be provided with magnetic valve.
Described magnetic valve is normally closed solenoid valve.
Described heat exchanger tube bends setting repeatedly, and adjacent tubes gap is even, and described heat exchange fin two ends are close in the gap that is arranged on heat exchanger tube.
Described heat exchange fin is waveform.
Described heat exchange fin is fold-line-shaped.
Described heat exchange fin is equidistant stacked setting.
The cross section of described heat exchanger tube is the flat tube of ellipse or kidney-shaped.
Heat exchanger tube in Double-layer sleeve-type gas heater heat-exchange system of the present invention is double-layer sleeve structure, only has at ordinary times the main flow channel participation work between internal and external casing, guarantees the heat exchange efficiency of heat exchanger; When user's discharge too low, burner reaches minimum of a value leaving water temperature when still too high, controller is just controlled by the aperture to magnetic valve, open the path of inner conduit, the heat exchange efficiency that reduces heat exchanger, to guarantee normally bathing of user, has improved the range of application of water heater, make water heater more be adapted at condition poor, the district work that hydraulic pressure is lower.
Accompanying drawing explanation
Fig. 1 is that the master of Double-layer sleeve-type gas heater heat-exchange system of the present invention looks schematic cross-section;
Fig. 2 is the schematic top plan view of Double-layer sleeve-type gas heater heat-exchange system of the present invention;
Fig. 3 is the schematic cross-section of heat exchanger tube in the present invention;
Fig. 4 is the structural representation of medium wave shape wave heat exchange fin of the present invention;
Fig. 5 is the structural representation of middle polyline shape heat exchange fin of the present invention;
Fig. 6 is the stacked heat exchange fin structural representation of intermediate reach of the present invention.
In figure: 1 tank shell, 2 water inlet pipes, 3 heat exchangers, 4 hot water outlet pipes, 5 main flow channels, 31 heat exchanger tubes, 32 heat exchange fins, 33 drive end bearing brackets, 34 rear end caps, 35 magnetic valves.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's statement, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
As Fig. 1, 2, shown in 3, a kind of Double-layer sleeve-type gas heater heat-exchange system, comprise tank shell 1, water inlet pipe 2 and heat exchanger 3, described water inlet pipe 2 is close on the lower house that is coiled in tank shell 1, described heat exchanger 3 is fixedly mounted in the upper shell of tank shell 1, the water inlet of heat exchanger 3 is communicated with water inlet pipe 2, the delivery port of heat exchanger 3 is communicated with hot water outlet pipe 4, described heat exchanger 3 is plate-fin heat exchanger, heat exchanger 3 comprises heat exchanger tube 31 and heat exchange fin 32, heat exchanger tube 31 has inside and outside two water pipes to be mutually socketed to form, between inner conduit and outer water pipe, leave gap and form main flow channel 5, in described drive end bearing bracket 33 and rear end cap 34, being provided with independently water channel is communicated with respectively with inside and outside two water pipes, in the water channel that wherein drive end bearing bracket 33 is connected with inner conduit, be provided with magnetic valve 35,
Described magnetic valve 35 is normally closed solenoid valve in the present invention, and when stable water pressure water heater is normally worked, magnetic valve 35 is all the time in closed condition, and inner conduit does not have current to be passed through; Only have when burner is during in minimum firepower, according to user, select, the controller of water heater just can be controlled the aperture of magnetic valve 35, after magnetic valve 35 is opened, part current can flow through from inner conduit, and the current heat exchange efficiency in inner conduit is very low, has realized the reduction to water temperature; Because now the firepower of burner is minimum, so even the heat exchange efficiency of current decreases in heat exchanger, can not make heat exchanger cross cause thermal damage yet, can not have influence on the security of water heater, because the total flow of heat exchanger tube 31 and hot water outlet pipe's 4 interior water can not change, so gas linkage apparatus for gas still can guarantee that burner is in running order, guarantees normally bathing of user.
In the present invention, in order to guarantee the heat exchange efficiency of heat exchanger under normal condition, the cross section of described heat exchanger tube 31 is the flat tube of ellipse or kidney-shaped, can increase to a certain extent heat exchange area like this, guarantees the performance of heat exchanger.
Heat exchanger tube described in the present invention bends setting repeatedly; adjacent tubes gap is even; adjacent tubes gap is the passage of high-temperature flue gas; described heat exchange fin 32 two ends are close in the gap that is arranged on heat exchanger tube; the shape of the heat exchange fin 32 in the present invention can be illustrated in figure 4 waveform, also can be illustrated in figure 5 fold-line-shaped, or is illustrated in figure 6 equidistant stacked setting; as discussed the heat exchange fin which kind of form is set, can not exceed protection scope of the present invention.
Claims (7)
1. a Double-layer sleeve-type gas heater heat-exchange system, comprise tank shell (1), water inlet pipe (2) and heat exchanger (3), described water inlet pipe (2) is close on the lower house that is coiled in tank shell (1), described heat exchanger (3) is fixedly mounted in the upper shell of tank shell (1), the water inlet of heat exchanger (3) is communicated with water inlet pipe (2), the delivery port of heat exchanger (3) is communicated with hot water outlet pipe (4), it is characterized in that: described heat exchanger (3) is plate-fin heat exchanger, heat exchanger (3) comprises heat exchanger tube (31) and heat exchange fin (32), heat exchanger tube (31) has inside and outside two water pipes to be mutually socketed to form, between inner conduit and outer water pipe, leave gap and form main flow channel (5), in described drive end bearing bracket (33) and rear end cap (34), being provided with independently water channel is communicated with respectively with inside and outside two water pipes, in the water channel that wherein drive end bearing bracket (33) is connected with inner conduit, be provided with magnetic valve (35).
2. Double-layer sleeve-type gas heater heat-exchange system as claimed in claim 1, is characterized in that: described magnetic valve (35) is normally closed solenoid valve.
3. Double-layer sleeve-type gas heater heat-exchange system as claimed in claim 1 or 2, it is characterized in that: described heat exchanger tube (31) bends setting repeatedly, adjacent tubes gap is even, and described heat exchange fin (32) two ends are close in the gap that is arranged on heat exchanger tube.
4. Double-layer sleeve-type gas heater heat-exchange system as claimed in claim 1 or 2, is characterized in that: described heat exchange fin (32) is waveform.
5. Double-layer sleeve-type gas heater heat-exchange system as claimed in claim 1 or 2, is characterized in that: described heat exchange fin (32) is fold-line-shaped.
6. Double-layer sleeve-type gas heater heat-exchange system as claimed in claim 1 or 2, is characterized in that: described heat exchange fin (32) is equidistant stacked setting.
7. Double-layer sleeve-type gas heater heat-exchange system as claimed in claim 1 or 2, is characterized in that: the cross section of described heat exchanger tube (31) is the flat tube of ellipse or kidney-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310756530.4A CN103712330A (en) | 2013-12-29 | 2013-12-29 | Double-layer tube-in-tube type gas water heater heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310756530.4A CN103712330A (en) | 2013-12-29 | 2013-12-29 | Double-layer tube-in-tube type gas water heater heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103712330A true CN103712330A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310756530.4A Withdrawn CN103712330A (en) | 2013-12-29 | 2013-12-29 | Double-layer tube-in-tube type gas water heater heat exchange system |
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| CN (1) | CN103712330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121279A (en) * | 2018-10-30 | 2020-05-08 | 宁波方太厨具有限公司 | Heat exchanger for gas water heater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154436Y (en) * | 1993-01-14 | 1994-01-26 | 丁志超 | Water temp. adjusting device in bathroom of gas hot-water apparatus |
| JPH06258490A (en) * | 1993-03-02 | 1994-09-16 | Hitachi Ltd | Mixed flow piping structure |
| CN2553295Y (en) * | 2002-04-30 | 2003-05-28 | 杨春新 | Wall hanging small gas water boiler |
| CN101105373A (en) * | 2007-08-01 | 2008-01-16 | 中原工学院 | Fin-tube type three-medium compound heat exchanger |
| CN101233359A (en) * | 2005-09-29 | 2008-07-30 | 三菱重工业株式会社 | Piping with fluid mixing region |
| CN102345934A (en) * | 2011-08-29 | 2012-02-08 | 中山华帝燃具股份有限公司 | Plate-fin heat exchanger for gas water heater |
| CN102853529A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Flow stabilizing and concurrent heating gas water heater |
| CN203744508U (en) * | 2013-12-29 | 2014-07-30 | 卓朝旦 | Bilayer tube-in-tube gas water heater heat exchange system |
-
2013
- 2013-12-29 CN CN201310756530.4A patent/CN103712330A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154436Y (en) * | 1993-01-14 | 1994-01-26 | 丁志超 | Water temp. adjusting device in bathroom of gas hot-water apparatus |
| JPH06258490A (en) * | 1993-03-02 | 1994-09-16 | Hitachi Ltd | Mixed flow piping structure |
| CN2553295Y (en) * | 2002-04-30 | 2003-05-28 | 杨春新 | Wall hanging small gas water boiler |
| CN101233359A (en) * | 2005-09-29 | 2008-07-30 | 三菱重工业株式会社 | Piping with fluid mixing region |
| CN101105373A (en) * | 2007-08-01 | 2008-01-16 | 中原工学院 | Fin-tube type three-medium compound heat exchanger |
| CN102345934A (en) * | 2011-08-29 | 2012-02-08 | 中山华帝燃具股份有限公司 | Plate-fin heat exchanger for gas water heater |
| CN102853529A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Flow stabilizing and concurrent heating gas water heater |
| CN203744508U (en) * | 2013-12-29 | 2014-07-30 | 卓朝旦 | Bilayer tube-in-tube gas water heater heat exchange system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121279A (en) * | 2018-10-30 | 2020-05-08 | 宁波方太厨具有限公司 | Heat exchanger for gas water heater |
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