CN202719763U - Gas water heater with differential pressure switch - Google Patents
Gas water heater with differential pressure switch Download PDFInfo
- Publication number
- CN202719763U CN202719763U CN 201220448933 CN201220448933U CN202719763U CN 202719763 U CN202719763 U CN 202719763U CN 201220448933 CN201220448933 CN 201220448933 CN 201220448933 U CN201220448933 U CN 201220448933U CN 202719763 U CN202719763 U CN 202719763U
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- CN
- China
- Prior art keywords
- differential pressure
- water
- pressure switch
- water heater
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 gas water heater with a differential pressure switch. The gas water heater mainly comprises a draught fan, a smoke cover, a heat exchanger, a combustion chamber and a combustor, the differential pressure switch is arranged between a water inlet pipe and a water outlet pipe, and the pressure difference between the water inlet pipe and the water outlet pipe is inducted through the differential pressure switch to control a power switch. A water flow sensing unit can be replaced ideally, effects of iron metal and water quality are avoided, and the gas water heater has the advantages of being simple in structure, good in anti-interference performance, and high in sensitivity.
Description
Technical field
The utility model relates to a kind of gas heater with pressure difference switch.
Background technology
In the prior art, gas heater adopts water flow sensing unit to control mostly by the flow of water, and these parts often adopt the magnetic induction electronic original paper, and manufacturing cost is high, and product structure is complicated; The water sensor original paper of must flowing through simultaneously, such operation principle easily so that the calcium in the water, magnesium ion and ferrous metal produce larger impact to electronic original part, even causes original paper to work.
Summary of the invention
The utility model provides a kind of gas heater with pressure difference switch in order to overcome the above problems, and it has simple in structure, and reaction speed is fast, the characteristics of good in anti-interference performance.
Above-mentioned purpose of the present utility model adopts following technical scheme to be achieved: the utility model comprises blower fan, petticoat pipe, heat exchanger, combustion chamber and burner; Be mounted with petticoat pipe and blower fan in the upper end of heat exchanger, the lower end is the combustion chamber, is mounted with burner in the combustion chamber; It is characterized in that: be connected between water inlet pipe on the heat exchanger and the outlet pipe and be provided with pressure difference switch.
The utility model compared with the prior art, beneficial effect embodies:
1, the utility model is to be connected between water inlet pipe on the heat exchanger and the outlet pipe to be provided with pressure difference switch, utilize the pressure differential between pressure difference switch induction water inlet pipe and the outlet pipe to carry out the switch control of power supply, can comparatively ideal replacement water flow sensing unit, avoided the impact of ferrous metal and water quality.
2, the utlity model has simple in structure, good in anti-interference performance, highly sensitive characteristics.
Description of drawings
Figure is the utility model operation principle schematic diagram;
The specific embodiment
By the following examples, by reference to the accompanying drawings the utility model is further described;
Description of reference numerals:
1-blower fan, 2-petticoat pipe, 3-heat exchanger, 4-combustion chamber, 5-burner, 6-water inlet pipe, 7-pressure difference switch, 8-lug plate, 9-outlet pipe;
Embodiment:
Referring to accompanying drawing; The utility model comprises blower fan (1), petticoat pipe (2), heat exchanger (3), combustion chamber (4) and burner (5); Be mounted with petticoat pipe (2) and blower fan (1) in the upper end of heat exchanger (3), the lower end arranges combustion chamber (4), is mounted with burner (5) in combustion chamber (4); Be connected between water inlet pipe (6) on the heat exchanger (3) and the outlet pipe (9) and be provided with pressure difference switch (7), the switching line of controller (figure does not draw) is connected in lug plate (8) two ends; Open the water source during use, water enters from water inlet pipe (6), flow out from outlet pipe (9) through heat exchanger (3), owing to having resistance in the heat exchanger (3), pressure differential can appear between water inlet pipe (6) and the outlet pipe (9), make pressure difference switch (7) conducting, blower fan (1) work, combustion gas enters burner (5) and burns in combustion chamber (4), high-temperature flue gas carries out heat exchange through over-heat-exchanger (3), generation hot water is for people to use, and useless flue gas is discharged from blower fan (1) through petticoat pipe (2).
Claims (1)
1. the gas heater with pressure difference switch comprises blower fan, petticoat pipe, heat exchanger, combustion chamber and burner; Be mounted with petticoat pipe and blower fan in the upper end of heat exchanger, the lower end is the combustion chamber, is mounted with burner in the combustion chamber; It is characterized in that: be connected between water inlet pipe on the heat exchanger and the outlet pipe and be provided with pressure difference switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220448933 CN202719763U (en) | 2012-02-20 | 2012-08-26 | Gas water heater with differential pressure switch |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220061787 | 2012-02-20 | ||
| CN201220061787.9 | 2012-02-20 | ||
| CN 201220448933 CN202719763U (en) | 2012-02-20 | 2012-08-26 | Gas water heater with differential pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719763U true CN202719763U (en) | 2013-02-06 |
Family
ID=47621585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220448933 Expired - Fee Related CN202719763U (en) | 2012-02-20 | 2012-08-26 | Gas water heater with differential pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277899A (en) * | 2013-06-24 | 2013-09-04 | 陈雄 | Gas water heater water channel distribution control device system and water channel distribution device |
-
2012
- 2012-08-26 CN CN 201220448933 patent/CN202719763U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277899A (en) * | 2013-06-24 | 2013-09-04 | 陈雄 | Gas water heater water channel distribution control device system and water channel distribution device |
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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: 20130206 Termination date: 20140826 |
|
| EXPY | Termination of patent right or utility model |