CN203771697U - Low-flow-protection gas water heater heat exchange system - Google Patents
Low-flow-protection gas water heater heat exchange system Download PDFInfo
- Publication number
- CN203771697U CN203771697U CN201320895246.0U CN201320895246U CN203771697U CN 203771697 U CN203771697 U CN 203771697U CN 201320895246 U CN201320895246 U CN 201320895246U CN 203771697 U CN203771697 U CN 203771697U
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- water
- heat exchanger
- pipe
- heat
- heat exchange
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Abstract
The utility model relates to the field of gas water heaters, in particular to a low-flow-protection gas water heater heat exchange system, wherein a heat exchanger is a plate-fin heat exchanger; multiple water pipes cling and are arranged side by side to serve as a whole heat exchange pipe; the multiple water pipes are connected in parallel with a front end cover arranged on a water inlet and then are communicated with inlet pipes; the multiple water pipes are connected in parallel with a back end cover arranged on a water outlet and then are communicated with a hot water outlet pipe; thermal fins and heat exchange pipes are arranged in a clinging way; at least one electromagnetic valve is arranged in the front end cover; each electromagnetic valve controls one water pipe independently. According to the low-flow-protection gas water heater heat exchange system, when the water flow for a user is too low, and the hot water temperature is still too high when a burner is switched to the minimum, a controller controls the opening of the electromagnetic valve, the thermal efficiency of the heat exchanger is reduced in a disguised form, the normal bathing of the user is guaranteed, the application range of the water heater is improved, and the water heater can be more suitable for working in areas with poorer conditions or areas with lower water 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 gas heater heat-exchange system of low discharge protection; 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; to guarantee normally bathing of user; make water heater more be adapted at condition poor, the district work that hydraulic pressure is lower.
The utility model is achieved in that a kind of gas heater heat-exchange system of low discharge protection, 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 some water pipes and heat exchange fin, some described water pipes are close to be arranged side by side becomes an overall heat exchange pipe, after the drive end bearing bracket parallel connection that some water pipes arrange by water inlet, be communicated with water inlet pipe, after the rear end cap parallel connection that some water pipes arrange by delivery port, be communicated with hot water outlet pipe, described hot fin and heat exchanger tube are close to setting, in described drive end bearing bracket, be provided with at least one magnetic valve, described each magnetic valve is independently controlled a water pipe.
Described water pipe has two, and wherein any water pipe arranges a magnetic valve flow in this root water pipe is controlled in drive end bearing bracket.
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 water pipe is rectangle.
The gas heater heat-exchange system of the utility model low discharge protection is by many water pipes and be unified into heat exchanger tube; and in water pipe, be provided with magnetic valve; when user's discharge too low; burner reaches minimum of a value leaving water temperature when still too high, and controller is just controlled by the aperture to magnetic valve, in a disguised form lowers the heat exchange efficiency of heat exchanger; to guarantee normally bathing of user; improved the range of application of water heater, made 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 gas heater heat-exchange system of the utility model low discharge protection looks schematic cross-section;
Fig. 2 is the schematic top plan view of the gas heater heat-exchange system of the utility model low discharge protection;
Fig. 3 is the structural representation of the utility model medium wave shape wave heat exchange fin;
Fig. 4 is the structural representation of the utility model middle polyline shape heat exchange fin;
Fig. 5 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, 31 water pipes, 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, shown in 2, a kind of gas heater heat-exchange system of low discharge protection, 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, burner is connected with the lower house of 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 some water pipes 31 and heat exchange fin 32, some described water pipes 31 are close to be arranged side by side becomes an overall heat exchange pipe, after drive end bearing bracket 33 that some water pipes 31 arrange by water inlet is in parallel, be communicated with water inlet pipe 2, after rear end cap 34 that some water pipes 31 arrange by delivery port is in parallel, be communicated with hot water outlet pipe 4, described hot fin 32 is close to setting with heat exchanger tube, in described drive end bearing bracket 33, be provided with at least one magnetic valve 35, a water pipe 31 of described each magnetic valve 35 independent control, when magnetic valve 35 is flat, in maximum opening state, do not participate in work, only have when burner is during in minimum firepower, according to user, select, the controller of water heater just can control to regulate water temperature to the aperture of magnetic valve 35, because now the firepower of burner is minimum, so even the heat exchange efficiency of current decreases in heat exchanger, also can not make heat exchanger cross cause thermal damage, can not have influence on the security of water heater.
In the present embodiment, described water pipe 31 has two, wherein any water pipe 31 is controlled at the interior flow arranging in 35 pairs of these root water pipes 31 of a magnetic valve of drive end bearing bracket 33, when magnetic valve 35 apertures reduce even to close, because two water pipes 31 are in parallel, so the total flow of hot water outlet pipe's 4 interior water of water heater can not change, gas linkage apparatus for gas still can guarantee that burner is in running order, because wherein a water pipe flow reduces even to close, so another root water pipe flow will be accelerated, in other parameters of heat exchanger, do not have in vicissitudinous situation like this, the efficiency of heat exchange will decline, will reduce hot water outlet pipe 4 leaving water temperature like this, guarantee normally bathing of user.In order to guarantee that many water pipes 31 can be close to, become one, do not waste heat transfer space, in the present embodiment, the cross section of described water pipe 31 is rectangle.
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 3 waveform, also can be illustrated in figure 4 fold-line-shaped, or is illustrated in figure 5 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. the gas heater heat-exchange system of low discharge protection, 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 some water pipes (31) and heat exchange fin (32), some described water pipes (31) are close to be arranged side by side becomes an overall heat exchange pipe, after drive end bearing bracket (33) parallel connection that some water pipes (31) arrange by water inlet, be communicated with water inlet pipe (2), after rear end cap (34) parallel connection that some water pipes (31) arrange by delivery port, be communicated with hot water outlet pipe (4), described hot fin (32) is close to setting with heat exchanger tube, in described drive end bearing bracket (33), be provided with at least one magnetic valve (35), the independent water pipe (31) of controlling of described each magnetic valve (35).
2. the gas heater heat-exchange system that low discharge as claimed in claim 1 is protected; it is characterized in that: described water pipe (31) has two, wherein any water pipe (31) arranges a magnetic valve (35) flow in this root water pipe (31) is controlled in drive end bearing bracket (33).
3. the gas heater heat-exchange system of low discharge protection as claimed in claim 1 or 2, is characterized in that: described heat exchanger tube bends setting repeatedly, and 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. the gas heater heat-exchange system of low discharge protection as claimed in claim 1 or 2, is characterized in that: described heat exchange fin (32) is waveform.
5. the gas heater heat-exchange system of low discharge protection as claimed in claim 1 or 2, is characterized in that: described heat exchange fin (32) is fold-line-shaped.
6. the gas heater heat-exchange system of low discharge protection as claimed in claim 1 or 2, is characterized in that: described heat exchange fin (32) is equidistant stacked setting.
7. the gas heater heat-exchange system of low discharge protection as claimed in claim 1 or 2, is characterized in that: the cross section of described water pipe (31) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895246.0U CN203771697U (en) | 2013-12-27 | 2013-12-27 | Low-flow-protection gas water heater heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895246.0U CN203771697U (en) | 2013-12-27 | 2013-12-27 | Low-flow-protection gas water heater heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771697U true CN203771697U (en) | 2014-08-13 |
Family
ID=51288883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320895246.0U Expired - Fee Related CN203771697U (en) | 2013-12-27 | 2013-12-27 | Low-flow-protection gas water heater heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203771697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697593A (en) * | 2013-12-27 | 2014-04-02 | 卓朝旦 | Gas water heater heat exchange system with function of low flow protection |
-
2013
- 2013-12-27 CN CN201320895246.0U patent/CN203771697U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697593A (en) * | 2013-12-27 | 2014-04-02 | 卓朝旦 | Gas water heater heat exchange system with function of low flow protection |
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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: 20140813 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |