CN204648689U - A kind of external heater of water heater - Google Patents
A kind of external heater of water heater Download PDFInfo
- Publication number
- CN204648689U CN204648689U CN201520157988.2U CN201520157988U CN204648689U CN 204648689 U CN204648689 U CN 204648689U CN 201520157988 U CN201520157988 U CN 201520157988U CN 204648689 U CN204648689 U CN 204648689U
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- China
- Prior art keywords
- heater
- water
- water tank
- heating tube
- shell
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of external heater of water heater, the casing of water-heater water tank is provided with the interface mated with heater, heater is removably fixed on this interface and is placed on water tank, heater comprises heating system, attemperating unit, electric control gear and shell, heating system is arranged in the enclosure and is isolated by sealing device and housing exterior, and attemperating unit, electric control gear are connected with heating system respectively.The external heater of a kind of water heater of the utility model, heater is outside equipped with at water tank, carry out outside water tank when water is heated, and by the form of convective heat exchange, the water in water tank is heated, conveniently heater is safeguarded, avoid scale problems in the water tank that to heat in water tank and cause, thus solve that the heater thermal efficiency caused because of heater fouling is low, the problem such as the life-span is short, electric leakage.By the interface be located on water tank, tank inner wall is cleaned after dismounting heater, effectively can reduce water tank bottom deposition.
Description
Technical field
The utility model relates to a kind of external heater of water heater, belongs to heater field.
Background technology
Present heat storage electric water heater adopts heater to be positioned over inside water tank, and the heating means be immersed in water carry out heating water, because the reason of water quality and heating means causes the heater serious scale be immersed in water.After heater fouling, incrustation scale affects heat transfer effect, thus affects the thermal efficiency of electric heater; Simultaneously cannot transmit feedwater in time cause heater temperature too high because heater fouling causes heat to be concentrated, incrustation scale is tied more and more finally to cause heater to burn out even leak electricity, not only affect the life-span of heater, and seriously jeopardize the life security of user.Further, the casing of existing heat storage electric water heater is enclosed, thus cleans very difficult, and the deposit in water tank, incrustation scale have a strong impact on uses the water hygiene.
Utility model content
In order to solve the problem, the utility model is achieved through the following technical solutions:
A kind of external heater of water heater, the casing of water-heater water tank is provided with the interface mated with heater, heater is removably fixed on this interface and is placed on water tank, heater comprises heating system, attemperating unit, electric control gear and shell, heating system is arranged in the enclosure and is isolated by sealing device and housing exterior, attemperating unit, electric control gear is connected with heating system respectively, and attemperating unit, the part of electric control gear is placed in the outside of heating tube, heater is provided with two mouths of a river, one of them mouth of a river communicates with the interface on aforementioned water tank, heating system inside has cavity volume, the cavity volume of heating system communicates with two of heater mouths of a river.
Further, heating system is heating tube, is arranged in the shell of heater.
Further, shell comprises the upper cover being provided with centre bore near water tank, away from the housing main body being provided with the lower cover of centre bore and the tubulose between upper cover and lower cover of water tank, upper cover, housing main body and lower cover are fixedly connected sequentially, and form the shell that has inner chamber and upper lower bottom hole.
Further, heating tube to be placed in coaxially in shell and to have gap between heating tube and housing main body, heating tube is provided with sealing ring near between one end and lower cover of shell lower cover, heating tube passes the centre bore of upper cover near one end of outer casing upper cover and stretches in the interface mated with heater that tank box is arranged, and arranges sealing ring between heating tube and water tank.
Further, heating tube to be placed in coaxially in shell and to have gap between heating tube and housing main body, and heating tube is provided with sealing ring near between one end and lower cover of shell lower cover, and heating tube arranges sealing ring near between one end and upper cover of outer casing upper cover.
Further, heating tube inwall is provided with anticorrosive coat.
Further, attemperating unit is any one in Kick type temperature controller or thermistor.
Further, heating tube is thick-film heating pipe or electromagnetic heating tube.
Further, heater is connected with water tank by bayonet unit.
Further, the outer casing upper cover of heater and tank box are fitted and are provided with sealing device between the two.
The external heater of a kind of water heater of the utility model, by arranging heater outside the water tank of water heater, carry out outside water tank when making to heat water, and by the form of convective heat exchange, the water in water tank is heated, because heater is positioned at outside water tank, conveniently heater is safeguarded, avoid scale problems in the water tank that to heat in water tank and cause, improve the service life of water heater, and then avoid because heater fouling damages the problem causing electric leakage to jeopardize user's safety, and can by being cleaned tank inner wall by the interface be located on water tank after dismounting heater, make to become more convenient to the cleaning of water tank, because the mouth of a river of heater is as cold water inlet or hot water outlet, deposition and the scale problems of water tank bottom effectively can be reduced by current.
Accompanying drawing explanation
Fig. 1 is the structural representation of the external heater of a kind of water heater of the utility model.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the use structural representation of the external heater of a kind of water heater of the utility model.
1, upper sealing ring 2, upper cover 3, attemperating unit 4, housing main body 5, electric control gear 6, lower seal 7, lower cover 8, heating system 9, water tank.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Water heater comprises water tank and heater, the casing of water tank is provided with the interface mated with heater, heater is removably fixed on this interface and is placed on water tank, heater comprises heating system, attemperating unit, electric control gear and shell, heating system is arranged in the enclosure and is isolated by sealing device and housing exterior, attemperating unit, electric control gear is connected with heating system respectively, and attemperating unit, the part of electric control gear is placed in the outside of shell, heater is provided with two mouths of a river, one of them mouth of a river communicates with the interface on aforementioned water tank, heating system inside has cavity volume, the cavity volume of heating system communicates with two of heater mouths of a river.Electric control gear can control the power on/off of heating system, thus makes heating system work or quit work.
Shell comprises the upper cover being provided with centre bore near water tank, away from the housing main body being provided with the lower cover of centre bore and the tubulose between upper cover and lower cover of water tank, upper cover, housing main body and lower cover are fixedly connected sequentially, and form the shell that has inner chamber and upper lower bottom hole.On the centre bore that covers and under the centre bore that covers respectively as two mouths of a river of heater.
In the present embodiment, heating system is heating tube, is arranged in the shell of heater.
Heating tube to be placed in coaxially in shell and to have gap between heating tube and housing main body, heating tube is provided with sealing ring near between one end and lower cover of shell lower cover, heating tube passes the centre bore of upper cover near one end of outer casing upper cover and stretches in the interface mated with heater that tank box is arranged, and arranges sealing ring between heating tube and water tank.
In the present embodiment, heater is installed on below water tank.
When water filling is carried out to water tank.Water enters the heating tube of heater from the centre bore of heater shell lower cover, and owing to passing the centre bore of heater outer casing upper cover above heating tube and stretching in water tank, water flows into water tank from heating tube top.
During heating, owing to also having water in the heating tube of heater, the water of heating tube to its inside heats, and the water in water tank is heated by convection heat transfer' heat-transfer by convection principle by the water in heating tube and the water in water tank.
During water outlet, the water in water tank, from the heating tube inner chamber flowing through heater, flows out from the centre bore of heater shell lower cover.
When needing to clean water tank, heater is disassembled from water tank, utilize the interface mated with heater that water tank is arranged to carry out tank inner wall cleaning.Conveniently clean, this interface can be set to heavy caliber interface, correspondingly, heater its diameter of part that interface connects therewith is also heavy caliber.
In other embodiments, heating tube to be placed in coaxially in shell and to have gap between heating tube and housing main body, heating tube is provided with sealing ring near between one end and lower cover of shell lower cover, heating tube arranges sealing ring near between one end and upper cover of outer casing upper cover, and heating tube no longer stretches in the interface mated with heater that tank box is arranged.
Heating tube inwall is provided with anticorrosive coat.Anticorrosive coat can adopt as techniques such as spraying, enamel, electrophoresis, does inner wall anti-corrosive process at heating tube inwall.Heating tube basic material can be stainless steel, pottery, quartz glass etc.In the present embodiment, stainless steel heating tube is chosen as.
Attemperating unit is any one in Kick type temperature controller or thermistor.In the present embodiment, Kick type temperature controller is chosen as.The temperature of heating tube is detected by attemperating unit.
Heating tube is thick-film heating pipe or electromagnetic heating tube or ceramic heating pipe.In the present embodiment, thick-film heating pipe is chosen as.
In order to mount and dismount with making heater more convenient and quicker, heater is connected with water tank by bayonet unit or screw.The outer casing upper cover of heater and tank box are fitted and are provided with sealing device between the two.
Heater is arranged on the bottom outside water tank, can form different setting angles as required use from water tank.Make heat storage water heater design shape more diversified, more can laterally, vertically install, it installs and uses more convenient simultaneously.
The present invention can be used on solar water heater, can solve the problem that solar water heater is cloudy or rainy day water is not warm.
The external heater of a kind of water heater of the utility model, by arranging heater outside the water tank of water heater, carry out outside water tank when making to heat water, and by the form of convective heat exchange, the water in water tank is heated, because heater is positioned at outside water tank, conveniently heater is safeguarded, avoid scale problems in the water tank that to heat in water tank and cause, improve the service life of water heater, and then avoid because heater fouling damages the problem causing electric leakage to jeopardize user's safety, and can by being cleaned tank inner wall by the interface be located on water tank after dismounting heater, make to become more convenient to the cleaning of water tank, because the mouth of a river of heater is as cold water inlet or hot water outlet, deposition and the scale problems of water tank bottom effectively can be reduced by current.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (10)
1. the external heater of a water heater, it is characterized in that: on the casing of water-heater water tank, be provided with the interface mated with heater, heater is removably fixed on this interface and is placed on water tank, heater comprises heating system, attemperating unit, electric control gear and shell, heating system is arranged in the enclosure and is isolated by sealing device and housing exterior, attemperating unit, electric control gear is connected with heating system respectively, and attemperating unit, the part of electric control gear is placed in the outside of shell, heater is provided with two mouths of a river, one of them mouth of a river communicates with the interface on aforementioned water tank, heating system inside has cavity volume, the cavity volume of heating system communicates with two of heater mouths of a river.
2. the external heater of a kind of water heater according to claim 1, is characterized in that: heating system is heating tube, is arranged in the shell of heater.
3. the external heater of a kind of water heater according to claim 2, it is characterized in that: shell comprises the upper cover being provided with centre bore near water tank, away from the housing main body being provided with the lower cover of centre bore and the tubulose between upper cover and lower cover of water tank, upper cover, housing main body and lower cover are fixedly connected sequentially, and form the shell that has inner chamber and upper lower bottom hole.
4. the external heater of a kind of water heater according to claim 3, it is characterized in that: heating tube to be placed in coaxially in shell and to have gap between heating tube and housing main body, heating tube is provided with sealing ring near between one end and lower cover of shell lower cover, heating tube passes the centre bore of upper cover near one end of outer casing upper cover and stretches in the interface mated with heater that tank box is arranged, and arranges sealing ring between heating tube and water tank.
5. the external heater of a kind of water heater according to claim 3, it is characterized in that: heating tube to be placed in coaxially in shell and to have gap between heating tube and housing main body, heating tube is provided with sealing ring near between one end and lower cover of shell lower cover, and heating tube arranges sealing ring near between one end and upper cover of outer casing upper cover.
6. the external heater of a kind of water heater according to claim 4, is characterized in that: heating tube inwall is provided with anticorrosive coat.
7. the external heater of a kind of water heater according to claim 1, is characterized in that: attemperating unit is any one in Kick type temperature controller or thermistor.
8. the external heater of a kind of water heater according to claim 2, is characterized in that: heating tube is thick-film heating pipe or electromagnetic heating tube or ceramic heating pipe.
9. the external heater of a kind of water heater according to any one of claim 1-8, is characterized in that: heater is connected with water tank by buckle or screw device.
10. the external heater of a kind of water heater according to claim 9, is characterized in that: the outer casing upper cover of heater and tank box are fitted and be provided with sealing device between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157988.2U CN204648689U (en) | 2015-03-20 | 2015-03-20 | A kind of external heater of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157988.2U CN204648689U (en) | 2015-03-20 | 2015-03-20 | A kind of external heater of water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204648689U true CN204648689U (en) | 2015-09-16 |
Family
ID=54101432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520157988.2U Expired - Fee Related CN204648689U (en) | 2015-03-20 | 2015-03-20 | A kind of external heater of water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204648689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705439A (en) * | 2017-01-12 | 2017-05-24 | 魏秋 | Water heater and heating system |
-
2015
- 2015-03-20 CN CN201520157988.2U patent/CN204648689U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705439A (en) * | 2017-01-12 | 2017-05-24 | 魏秋 | Water heater and heating system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160320 |