CN203744508U - Bilayer tube-in-tube gas water heater heat exchange system - Google Patents
Bilayer tube-in-tube gas water heater heat exchange system Download PDFInfo
- Publication number
- CN203744508U CN203744508U CN201320896096.5U CN201320896096U CN203744508U CN 203744508 U CN203744508 U CN 203744508U CN 201320896096 U CN201320896096 U CN 201320896096U CN 203744508 U CN203744508 U CN 203744508U
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- water
- heat exchanger
- tube
- heat exchange
- heat
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Abstract
The utility model relates to a bilayer tube-in-tube gas water heater heat exchange system comprising a water tank shell, 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 type heat exchanger and comprises a heat exchange tube and heat exchange fins, the heat exchange tube is composed of an internal water tube and an external water tube in mutual sleeve connection, a gap is reserved between the internal water tube and the external water tube to form a main water passage, independent water channels are arranged in a front end cover and a rear end cover and communicated with the internal and external water tubes respectively, and an electromagnetic valve is arranged in the water channel, communicated with the internal water tube, of the front end cover. A passage of the internal water tube can be opened selectively, heat exchange efficiency of the heat exchanger is lowered so as to ensure a user to have a normal bath, application range of the a water heater is enlarged, and the water heater can be more suitable for working in regions poor in condition and low in pressure.
Description
Technical field
The utility model relates to gas heater field, relates 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 in the utility model 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 utility model 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 the utility model Double-layer sleeve-type gas heater heat-exchange system 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 the utility model Double-layer sleeve-type gas heater heat-exchange system looks schematic cross-section;
Fig. 2 is the schematic top plan view of the utility model Double-layer sleeve-type gas heater heat-exchange system;
Fig. 3 is the schematic cross-section of heat exchanger tube in the utility model;
Fig. 4 is the structural representation of the utility model medium wave shape wave heat exchange fin;
Fig. 5 is the structural representation of the utility model middle polyline shape heat exchange fin;
Fig. 6 is the stacked heat exchange fin structural representation of the utility model intermediate reach.
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 utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model 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,
At the magnetic valve 35 described in the utility model, be normally closed solenoid valve, 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 utility model, 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 utility model 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 utility model 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 domain of the present utility model.
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 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 |
|---|---|---|---|
| CN201320896096.5U CN203744508U (en) | 2013-12-29 | 2013-12-29 | Bilayer tube-in-tube gas water heater heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320896096.5U CN203744508U (en) | 2013-12-29 | 2013-12-29 | Bilayer tube-in-tube gas water heater heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203744508U true CN203744508U (en) | 2014-07-30 |
Family
ID=51344299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320896096.5U Expired - Fee Related CN203744508U (en) | 2013-12-29 | 2013-12-29 | Bilayer tube-in-tube gas water heater heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203744508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712330A (en) * | 2013-12-29 | 2014-04-09 | 卓朝旦 | Double-layer tube-in-tube type gas water heater heat exchange system |
| CN110017597A (en) * | 2019-04-15 | 2019-07-16 | 陈雄 | A kind of zero cold water section heat exchanger with water space |
-
2013
- 2013-12-29 CN CN201320896096.5U patent/CN203744508U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712330A (en) * | 2013-12-29 | 2014-04-09 | 卓朝旦 | Double-layer tube-in-tube type gas water heater heat exchange system |
| CN110017597A (en) * | 2019-04-15 | 2019-07-16 | 陈雄 | A kind of zero cold water section heat exchanger with water space |
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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: 20140730 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |