CN2270936Y - Water-storage heater - Google Patents
Water-storage heater Download PDFInfo
- Publication number
- CN2270936Y CN2270936Y CN 96221370 CN96221370U CN2270936Y CN 2270936 Y CN2270936 Y CN 2270936Y CN 96221370 CN96221370 CN 96221370 CN 96221370 U CN96221370 U CN 96221370U CN 2270936 Y CN2270936 Y CN 2270936Y
- Authority
- CN
- China
- Prior art keywords
- water
- inlet pipe
- water inlet
- storage tank
- heating element
- 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
Links
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model relates to a water storing heater. The utility model comprises a water storage tank 1, a heating element 2, a water inlet pipe 3, and a water outlet pipe 4, wherein, the heating element 2, the water inlet pipe 3, and the water outlet pipe 4 are arranged in the inner cavity of the water storage tank 1; the water inlet pipe 3 is a bent pipe whose water outlet is downward, and the water inlet pipe 3 is provided with a through hole which penetrates through the pipe wall of the water inlet pipe 3; the position of the through hole is higher than the position of the heating element 2 in the water storage tank 1. Because a back flow safety device is of simple structure and is of strong reliability, the utility model has the advantages of safe use, long service life, no easy damage, etc.
Description
The utility model relates to a kind of water heater, particularly a kind of water-storage heater of submergence heating element heater.
For water storage tank in the water-storage heater can be replenished immediately because of the hot water required cold water of augmenting in back that flows away, the water storage tank water inlet pipe is in normally open in the heater course of work always.Like this, when decompression appears cutting off the water supply in tap water supply system, as the untimely water intaking valve of closing, the phenomenon of the interior water storage of water storage tank from water inlet pipe refluence return pipe road system will take place, thereby cause the immersion heating element heater under exsiccosis, to heat dry combustion method, so gently then burn heating element heater and related components, heavy then lead to fire and cause the phenomenon of burning the bather that shocks by electricity because of heating element heater.
For preventing the generation of this refluence phenomenon, once had in the prior art and in water inlet pipe, added the design of putting check valve, but because some parts poor durability in the check valve, easy break-down (as rubber ring aging etc.) and cause check valve to lose efficacy headachyly is, because the user can't discover this failure phenomenon from external result of use, therefore, also just can not in time solve, like this, above-mentioned refluence and dry combustion method phenomenon can not be avoided.
The purpose of this utility model is to overcome weak point of the prior art, and provides a kind of refluence safety device simple in structure, can effectively stop again because of water storage refluence in the water storage tank water-storage heater of heating element heater dry combustion method phenomenon to take place.
The purpose of this utility model realizes by following approach.
Water-storage heater, comprise water storage tank, be installed in heating element heater and water inlet pipe and outlet pipe in the water storage tank inner chamber, water inlet pipe is a kind of delivery port bend pipe down, has the refluence safety device, its structural feature is: said refluence safety device is a kind of through hole that runs through the water inlet pipe tube wall, and lead to the hole site is higher than heating element heater residing position in water storage tank.
Like this, flow backwards when making water level in the water storage tank be lower than through hole because of siphon, the air in the water storage tank is able to enter water inlet pipe from through hole, and siphonage is destroyed, and the interior water storage in the water storage tank stops to flow backwards.
The utility model can also reach by following approach.
Through-hole diameter is preferably 1/4～1/12 of water inlet pipe internal diameter.
The relative less through-hole diameter of water inlet pipe internal diameter in the time of can reducing or stop into water, from the shunt volume that through hole is gone out, is gone out from the water inlet pipe water side with the current that guarantee the overwhelming majority.
Through hole preferably is positioned at water inlet pipe elbow top.
In sum, refluence safety device structure in the utility model and simple, good reliability can break down hardly, so this practicality newly has following advantage: safe in utilization, can effectively stop the phenomenon of heating element heater dry combustion method to take place because of water storage refluence in the water storage tank.
Accompanying drawing is the structural representation of the utility model most preferred embodiment.
Below we carry out more detailed description to the utility model in conjunction with the accompanying drawings.Most preferred embodiment:
With reference to accompanying drawing, water-storage heater, comprise water storage tank 1, be installed in water storage tank 1 inner chamber by heating element heater 2 and the water inlet pipe 3 and the outlet pipe of electric heater conduct, water inlet pipe 3 is a kind of bend pipes, and its water side is positioned at water storage tank 1 intracavity bottom, elbow then is positioned at water storage tank 1 inner chamber top, refluence safety device 31 on the water inlet pipe 3 is a kind of through holes that run through water inlet pipe 3 tube walls, and it is positioned at water inlet pipe 3 elbow tops, so its present position is higher than heating element heater 2 residing position in water storage tank 1.Through-hole diameter is 1/10 of water inlet pipe 3 internal diameters.
It is same as the prior art that present embodiment is not stated part.
Claims (3)
1. water-storage heater, comprise water storage tank (1), be installed in heating element heater (2) and water inlet pipe (3) and outlet pipe (4) in water storage tank (1) inner chamber, water inlet pipe (3) is a kind of delivery port bend pipe down, has refluence safety device (31), it is characterized in that said refluence safety device (31) is a kind of through hole that runs through water inlet pipe (3) tube wall, lead to the hole site is higher than heating element heater (2) residing position in water storage tank (1).
2. water-storage heater according to claim 1 is characterized in that, through-hole diameter is 1/4～1/12 of water inlet pipe (a 3) internal diameter.
3. water-storage heater according to claim 1 is characterized in that, through hole is positioned at water inlet pipe (3) elbow top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96221370 CN2270936Y (en) | 1996-08-24 | 1996-08-24 | Water-storage heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96221370 CN2270936Y (en) | 1996-08-24 | 1996-08-24 | Water-storage heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2270936Y true CN2270936Y (en) | 1997-12-17 |
Family
ID=33901313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96221370 Expired - Fee Related CN2270936Y (en) | 1996-08-24 | 1996-08-24 | Water-storage heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2270936Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983015A (en) * | 2014-05-16 | 2014-08-13 | 李启明 | Backflow prevention and automatic venting structure of electric water heater |
| CN105650860A (en) * | 2016-02-15 | 2016-06-08 | 佛山市樱顺卫厨用品有限公司 | Water outlet device with flow stabilizing function |
-
1996
- 1996-08-24 CN CN 96221370 patent/CN2270936Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983015A (en) * | 2014-05-16 | 2014-08-13 | 李启明 | Backflow prevention and automatic venting structure of electric water heater |
| CN105650860A (en) * | 2016-02-15 | 2016-06-08 | 佛山市樱顺卫厨用品有限公司 | Water outlet device with flow stabilizing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20000320 Decision number of declaring invalidation: 2023 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |