CN202581771U - Electric water heater capable of preheating outside liner - Google Patents
Electric water heater capable of preheating outside liner Download PDFInfo
- Publication number
- CN202581771U CN202581771U CN 201220185938 CN201220185938U CN202581771U CN 202581771 U CN202581771 U CN 202581771U CN 201220185938 CN201220185938 CN 201220185938 CN 201220185938 U CN201220185938 U CN 201220185938U CN 202581771 U CN202581771 U CN 202581771U
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- Prior art keywords
- water inlet
- electric heater
- heat
- pipe
- cavity
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- Expired - Lifetime
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses an electric water heater capable of preheating outside a liner. The electric water heater comprises a water inlet pipe and a liner, wherein the water inlet pipe is communicated with the liner, the main technical feature is as follows: the electric water heater further comprises a preheating generator connected to the water inlet pipe outside the liner in series, the pressure of the liner of the electric heater is effectively reduced, so that the service life of the liner is prolonged, and the electric water heater is safe and reliable.
Description
Technical field
The utility model relates to a kind of electric heater, especially the outer pre-heated electric heater of courage.
Background technology
Existing electric heater all is that cold water directly gets into inner bag from water inlet pipe; Heat the water in the inner bag through the electrical heating elements that is installed in the inner bag then, the pressure in temperature rising this moment, the inner bag constantly increases, especially concerning the electric heater of HTHP; Water is converted into gaseous state from liquid state after the heating heating; The pressure that produces is bigger, and pressure is crossed conference and shortened the service life of inner bag even phenomenon such as blast can occur, has potential safety hazard.Existing electric heater all is to solve this problem through the mode that relief valve is installed, but relief valve blocks by incrustation scale through regular meeting, causes defectives such as pressure release disabler.For overcoming these defectives, the outer pre-heated electric heater of courage is developed.
Summary of the invention
The utility model technical problem to be solved is to provide a kind of courage outer pre-heated electric heater, and it can effectively reduce the pressure that inner container of electric water heater bears, thereby prolongs the service life of inner bag, and safe and reliable.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises water inlet pipe, inner bag, and water inlet pipe is communicated with inner bag, and it also comprises the preheating generator that is connected in series in the water inlet pipe outside the tank.
It also comprises binding post, and described preheating generator comprises heat-generating pipe, has the cavity of water inlet and delivery port, and water inlet and delivery port are communicated with the electric heater water inlet pipe respectively, and heat-generating pipe is positioned at cavity and is connected with external power source through binding post.
It also comprises temperature controller, is arranged on the fixed leg on the preheating generator cavity shell; Temperature controller is fixed on the fixed leg place and electrically connects with binding post; Heat-generating pipe one termination binding post; The other end contacts with the part of installation temperature controller in the preheating generator cavity shell, and the highest temperature control point of temperature controller is higher than the highest face temperature of heat-generating pipe.
Described water inlet, delivery port are communicated with water inlet pipe through entry bend pipe, Discharging bent-tube respectively.
The outer end of described entry bend pipe, Discharging bent-tube is threaded with the electric heater water inlet pipe through nut respectively.
Described entry bend pipe the inner is positioned at the bottom of cavity, and Discharging bent-tube the inner is positioned at the top of cavity.
Described heat-generating pipe one end is connected with outside binding post through sealing compound.
The cavity shell of described preheating generator, entry bend pipe, Discharging bent-tube, heat-generating pipe are processed by Heat Conduction Material.
The cavity shell of described preheating generator, entry bend pipe, Discharging bent-tube, heat-generating pipe 7 are processed by stainless steel material.
The utility model is compared the beneficial effect that is produced with background technology:
Because the utility model adopts the structure of serial connection preheating generator in the water inlet pipe outside the tank, makes the water that gets into inner bag pass through preheating in advance, so it can effectively reduce the pressure that inner container of electric water heater bears, thus the service life of prolongation inner bag, and safe and reliable.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the syndeton sketch map of preheating generator and electric heater water inlet pipe among Fig. 1, temperature controller.
The specific embodiment:
Shown in accompanying drawing 1, accompanying drawing 2; The outer pre-heated electric heater of the courage of present embodiment comprises water inlet pipe 5, inner bag, be connected in series preheating generator 4, temperature controller 3 on the water inlet pipe 5 outside the tank; Water inlet pipe 5 is communicated with inner bag, and temperature controller 3 is installed on the preheating generator 4, and preheating generator 4 comprises heat-generating pipe 7, has the cavity 11 of water inlet 8 and delivery port 6, is located at the fixed leg 9 on the cavity shell; Water inlet 8 is communicated with electric heater water inlet pipe 5 respectively with delivery port 6; Heat-generating pipe 7 is positioned at cavity 11 and is connected with external power source through binding post 2, and the fixed leg 9 of present embodiment is a Nut column, and water inlet pipe 5 is provided with screw thread; Water inlet 8, delivery port 6 are communicated with water inlet pipe through entry bend pipe, Discharging bent-tube respectively, and entry bend pipe, Discharging bent-tube outer end are threaded with electric heater water inlet pipe 5 through nut 10 respectively.Temperature controller 3 is fixed on fixed leg 9 places and electrically connects with binding post 2; Heat-generating pipe 7 one ends connect binding post 2 through sealing compound 1; The other end contacts with the part of installation temperature controller 3 in the preheating generator 4 cavity shells; The highest temperature control point of temperature controller 3 is higher than the highest face temperature of heat-generating pipe 7, and entry bend pipe the inner is positioned at the bottom of cavity 11, and Discharging bent-tube the inner is positioned at the top of cavity 11; Can make storage water as much as possible in the preheating generator, what can guarantee delivery port 6 outflows simultaneously is superposed hot water.The cavity shell of preheating generator 4, entry bend pipe, Discharging bent-tube, heat-generating pipe 7 are processed by stainless steel material, and heat conductivility is good, and the end that heat-generating pipe 7 contacts with fixed leg 9 can be through stainless steel cavity shell with heat transferred temperature controller 3.
During work, the water of electric heater water inlet pipe 5 enters into through water inlet 8 in the cavity 11 of preheating generator 4, and heat-generating pipe 7 one ends heat the water in the preheating generator 4 through 2 energisings of external binding post; The other end passes through the cavity shell with heat transferred temperature controller 3; Heated hot water flows out through delivery port 6 and gets into inner container of electric water heater then, and when liquid level was lower than heat-generating pipe 7 highest face temperatures in cavity 11, the heat-generating pipe temperature rose; When temperature rises to the operating temperature of temperature controller 3; Temperature controller breaks off, and heat-generating pipe stops heating, can effectively prevent the appearance of dry-fire condition.Because the water in the water inlet pipe 5 gets into the water of inner bag and has passed through heating before; To be heated the back variations in temperature little getting into inner bag, and the pressure of generation is little, and the pressure that bears of inner bag is little like this; Can effectively prolong the service life of inner container of electric water heater; In addition, even relief valve is stopped up or damages by incrustation scale, dangerous phenomenons such as blast can not appear yet.
Claims (9)
1. the outer pre-heated electric heater of a courage comprises water inlet pipe (5), inner bag, and water inlet pipe (5) is communicated with inner bag, it is characterized in that it also comprises the preheating generator (4) that is connected in series in the water inlet pipe (5) outside the tank.
2. the outer pre-heated electric heater of courage according to claim 1; It is characterized in that it also comprises binding post (2); Described preheating generator (4) is provided with heat-generating pipe (7), has the cavity (11) of water inlet (8) and delivery port (6); Water inlet (8) and delivery port (6) are communicated with electric heater water inlet pipe (5) respectively, and heat-generating pipe (7) is positioned at cavity (11) and is connected with external power source through binding post (2).
3. the outer pre-heated electric heater of courage according to claim 2; It is characterized in that also comprising temperature controller (3), be arranged on the fixed leg (9) on preheating generator (4) the cavity shell; Temperature controller (3) is fixed on that fixed leg (9) is located and electrically connects with binding post (2); Heat-generating pipe (7) one termination binding posts (2); The part that temperature controller (3) is installed in the other end and preheating generator (4) the cavity shell contacts, and the highest temperature control point of temperature controller (3) is higher than the highest face temperature of heat-generating pipe (7).
4. according to claim 2 or the outer pre-heated electric heater of 3 described courages, it is characterized in that described water inlet (8), delivery port (6) are communicated with water inlet pipe through entry bend pipe, Discharging bent-tube respectively.
5. the outer pre-heated electric heater of courage according to claim 4 is characterized in that described entry bend pipe outer end, Discharging bent-tube outer end are threaded with electric heater water inlet pipe (5) through nut (10) respectively.
6. the outer pre-heated electric heater of courage according to claim 4 is characterized in that described entry bend pipe the inner is positioned at the bottom of cavity (11), and Discharging bent-tube the inner is positioned at the top of cavity (11).
7. according to claim 2 or the outer pre-heated electric heater of 3 described courages, it is characterized in that described heat-generating pipe (7) one ends are connected with outside binding post (2) through sealing compound (1).
8. the outer pre-heated electric heater of courage according to claim 4 is characterized in that cavity shell, entry bend pipe, Discharging bent-tube, the heat-generating pipe (7) of described preheating generator (4) processed by Heat Conduction Material.
9. the outer pre-heated electric heater of courage according to claim 8 is characterized in that cavity shell, entry bend pipe, Discharging bent-tube, the heat-generating pipe (7) of described preheating generator (4) processed by stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185938 CN202581771U (en) | 2012-04-27 | 2012-04-27 | Electric water heater capable of preheating outside liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185938 CN202581771U (en) | 2012-04-27 | 2012-04-27 | Electric water heater capable of preheating outside liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202581771U true CN202581771U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220185938 Expired - Lifetime CN202581771U (en) | 2012-04-27 | 2012-04-27 | Electric water heater capable of preheating outside liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202581771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620421A (en) * | 2012-04-27 | 2012-08-01 | 佛山市高明万和电气有限公司 | Out-of-container preheating electric water heater |
-
2012
- 2012-04-27 CN CN 201220185938 patent/CN202581771U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620421A (en) * | 2012-04-27 | 2012-08-01 | 佛山市高明万和电气有限公司 | Out-of-container preheating electric water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |