CN205678862U - A kind of gas heater - Google Patents
A kind of gas heater Download PDFInfo
- Publication number
- CN205678862U CN205678862U CN201620515169.5U CN201620515169U CN205678862U CN 205678862 U CN205678862 U CN 205678862U CN 201620515169 U CN201620515169 U CN 201620515169U CN 205678862 U CN205678862 U CN 205678862U
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- Prior art keywords
- water
- return pipe
- pipe
- connects
- sensing unit
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model discloses a kind of gas heater, including heat exchanger, cold water pipe, hot-water line, return pipe and discharging device, one end of described cold water pipe connects with described discharging device, the other end of cold water pipe connects with described return pipe, one end of described hot-water line connects with the water side of heat exchanger, the other end of hot-water line connects with discharging device, one end of described return pipe connects with the water side of described hot-water line, the other end of return pipe connects with the water inlet end of described heat exchanger, described return pipe is sequentially provided with temperature sensor along water (flow) direction, water pump, check valve and the first water flow sensing unit, the connection end of described return pipe and cold water pipe is located between described first water flow sensing unit and check valve.The utility model return water system safety, prevents water heater from dry combustion method phenomenon occur, improves the safety in utilization of water heater.
Description
Technical field
The utility model relates to a kind of water heater, is specifically related to a kind of gas heater.
Background technology
Gas heater is also known as gas water-heating furnace, and it refers to using combustion gas as fuel, by combustion heating mode by heat
It is delivered to flow through in the cold water of heat exchanger to reach to prepare a kind of gas appliance of the purpose of hot water.I.e. obtain hot water for boiling water
Effect, water heater typically by increasing return pipe and carrying out backwater heating to the water in return pipe and realize, but existing water heater
It is easily caused water heater after increasing water return function and dry combustion method phenomenon occurs, reduce the service life of water heater.Therefore, in order to avoid now
There is shortcoming present in technology, it is necessary to improvement is made to prior art.
Utility model content
The purpose of this utility model is to overcome shortcoming of the prior art and deficiency, provides one to improve safety in utilization
Gas heater.
The utility model is to be realized by following technical scheme:
A kind of gas heater, including heat exchanger, cold water pipe, hot-water line, return pipe and discharging device, described cold water pipe
One end connect with described discharging device, the other end of cold water pipe connects with described return pipe, one end of described hot-water line with heat
The water side connection of interchanger, the other end of hot-water line connects with discharging device, one end of described return pipe and described hot-water line
Water side connection, the other end of return pipe connects with the water inlet end of described heat exchanger, and described return pipe depends on along water (flow) direction
The connection end of secondary temperature sensor, water pump, check valve and the first water flow sensing unit of being provided with, described return pipe and cold water pipe is located at institute
State between the first water flow sensing unit and check valve.
Further, described temperature sensor is provided with the water inlet end of described water pump.
Further, described cold water pipe connection cold water source.
Further, also include controller, described controller respectively with described temperature sensor, the first water flow sensing unit and
Two water flow sensing unit electrical connections.
Relative to prior art, the utility model arranges the first water flow sensing unit on return pipe, by detection return pipe
Whether there is discharge to control whether water heater works, it is to avoid dry combustion method occurs in water heater, improve the service life of water heater.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing of required use is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before not paying creative work
Put, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model gas heater.
In figure: 1. heat exchanger；2. cold water pipe；3. hot-water line；4. return pipe；5. discharging device；6. temperature sensor；7.
Water pump；8. check valve；9. the first water flow sensing unit；10. the second water flow sensing unit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole realities
Execute example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of not making creative work
The every other embodiment obtaining, broadly falls into the scope of the utility model protection.
A kind of gas heater of the present utility model as shown in Figure 1, including the 3rd, heat exchanger the 1st, cold water pipe the 2nd, hot-water line returns
Water pipe 4 and discharging device 5, one end of cold water pipe 2 connects with discharging device 5, and the other end of cold water pipe 2 connects with return pipe 4, heat
One end of water pipe 3 connects with the water side of heat exchanger 1, and the other end of hot-water line 3 connects with discharging device 5, the one of return pipe 4
End connects with the water side of hot-water line 3, and the other end of return pipe 4 connects with the water inlet end of heat exchanger 1, and return pipe 4 is along current
Direction is sequentially provided with temperature sensor the 6th, water pump the 7th, check valve 8 and the first water flow sensing unit 9, the connection of return pipe 4 and cold water pipe 2
End is located between the first water flow sensing unit 9 and check valve 8.
Cold water pipe 2 is provided with the second water flow sensing unit 10 with the connection end of return pipe 4.
Temperature sensor 6 is provided with the water inlet end of water pump 7, it is simple to the water temperature in detection return pipe 4.
Cold water pipe 2 connects cold water source.
Also including controller, this controller senses with temperature sensor the 6th, the first water flow sensing unit 9 and the second current respectively
Device 10 electrically connects, and controller controls according to the information of temperature sensor the 6th, the first water flow sensing unit 9 and the second water flow sensing unit 10
The duty of water heater.
Operation principle: the second water flow sensing unit 10 closed mode, when temperature sensor 6 detects the current in return pipe 4
When temperature reaches preset temperature value lower limit, water pump 7 works, and the first water flow sensing unit 9 detects water heater working after water-flow signal,
When temperature sensor 6 detects that the water flow temperature in return pipe 4 reaches the preset temperature value upper limit, water heater quits work；The
Two water flow sensing unit 10 open modes, water pump 7 quits work.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in the utility model
Protection domain within.
Claims (5)
1. a gas heater, including heat exchanger, cold water pipe, hot-water line, return pipe and discharging device, it is characterised in that:
One end of described cold water pipe connects with described discharging device, and the other end of cold water pipe connects with described return pipe, described hot-water line
One end connect with the water side of heat exchanger, the other end of hot-water line connects with discharging device, one end of described return pipe with
The water side connection of described hot-water line, the other end of return pipe connects with the water inlet end of described heat exchanger, described return pipe edge
Water (flow) direction is sequentially provided with temperature sensor, water pump, check valve and the first water flow sensing unit, the company of described return pipe and cold water pipe
Go side is located between described first water flow sensing unit and check valve.
2. gas heater according to claim 1, it is characterised in that: the connection end of described cold water pipe and described return pipe
It is provided with the second water flow sensing unit.
3. gas heater according to claim 1, it is characterised in that: described temperature sensor is provided with entering of described water pump
Water end (W.E.).
4. gas heater according to claim 1, it is characterised in that: described cold water pipe connects cold water source.
5. gas heater according to claim 1, it is characterised in that: also include controller, described controller respectively with
Described temperature sensor, the first water flow sensing unit and the electrical connection of the second water flow sensing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515169.5U CN205678862U (en) | 2016-05-30 | 2016-05-30 | A kind of gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515169.5U CN205678862U (en) | 2016-05-30 | 2016-05-30 | A kind of gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205678862U true CN205678862U (en) | 2016-11-09 |
Family
ID=57436890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620515169.5U Active CN205678862U (en) | 2016-05-30 | 2016-05-30 | A kind of gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205678862U (en) |
-
2016
- 2016-05-30 CN CN201620515169.5U patent/CN205678862U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |