CN102287919B - Water inlet device of electric water heater - Google Patents
Water inlet device of electric water heater Download PDFInfo
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- CN102287919B CN102287919B CN 201010207895 CN201010207895A CN102287919B CN 102287919 B CN102287919 B CN 102287919B CN 201010207895 CN201010207895 CN 201010207895 CN 201010207895 A CN201010207895 A CN 201010207895A CN 102287919 B CN102287919 B CN 102287919B
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Abstract
The invention discloses a water inlet device of an electric water heater, which comprises an external pipe and an internal pipe. An external pipe water inlet is formed at the water inlet end of the external pipe; the top end of the water outlet end of the external pipe is sealed; an external pipe water outlet is formed on the side wall of the water outlet end of the external pipe; the water outlet end of the external pipe can extend into an inner container of the electric water heater from a water inlet pipe of the electric water heater; an internal pipe water inlet is formed at the water inlet end of the internal pipe; an internal pipe water outlet is formed at the water outlet end of the internal pipe; a water flowing clearance is formed between the outer wall of the internal pipe and the inner wall of the external pipe and is communicated with the external pipe water outlet and the internal pipe water outlet; and the external pipe water outlet is positioned below the internal pipe water outlet. Due to the adoption of the structure that the external pipe and the internal pipe are combined, the water outlet direction of the external pipe is inclined downwards, the external pipe also can be directly arranged in the inner container of the electric water heater through the water inlet pipe of the electric water heater from the exterior of the electric water heater, convenience in mounting can be effectively ensured on the premise that the hot water output rate of the electric water heater is high, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of water feed apparatus of electric heater.
Background technology
Hot water delivery rate is an important indicator of test electric heater performance.In the unit capacity electric heater to go out the hot water amount more, hot water delivery rate is higher.For improving the hot water delivery rate of electric heater, the water inlet pipe of existing common electric heater generally is equipped with water feed apparatus, makes the cold water that enters from water inlet tube of electric water heater downwards or the inclination Jet with downward flow direction, thereby improves the hot water delivery rate of water heater.But these water feed apparatus generally will be installed to water inlet pipe from inner bag inside by the cylinder mouth of inner bag, therefore, during installation, the operator must handle and operation tool put in inner bag, this observes and operation not only bad for the operator, and operation tool is easy and inner bag produces collision, damages the porcelain facing of inner bag.In order to overcome above defect, the water feed apparatus of electric heater is developed.
Summary of the invention
Technical problem to be solved by this invention is that a kind of cold water thrust scope that enlarges will be provided, and when keeping cold water to move downward smoothly, keeps orderly outlet effect, the water inlet device of electric water heater up risen to promote more hot water.
The technical scheme that the present invention solves its technical problem employing is: a kind of water feed apparatus of electric heater, it comprises outer tube and inner tube, the outer tube water inlet end is provided with the outer tube water inlet, the top closure of outer tube water side, the sidewall of outer tube water side is provided with the outer tube delivery port, the outer tube water side is pierced into water inlet tube of electric water heater and is extend into inner container of electric water heater, the inner tube water inlet end is provided with the inner tube water inlet, the inner tube water side is provided with the inner tube delivery port, be provided with the water flowing gap between outer wall of inner tube and outer tube wall, the water flowing gap is communicated with the outer tube delivery port) and the inner tube delivery port, described outer tube delivery port center line and horizontal angular range are 5 ~ 30, the outer tube delivery port is downward-sloping, described inner tube delivery port is arranged on the top of inner tube water side, the outer tube delivery port is positioned at the below of inner tube delivery port.
The maximum radial dimension of described outer tube water side is less than or equal to the minimum diameter size of water inlet tube of electric water heater.
Described outer tube and inner tube axially are nested, the outer wall of outer tube water inlet end is provided with the outer tube fin of being close to the water inlet tube of electric water heater inwall, the outer wall of inner tube water inlet end is provided with the inner tube fin of being close to outer tube wall, outer tube and water inlet tube of electric water heater interference fit, inner tube and outer tube interference fit.
Described outer tube water inlet end outer wall is provided with outer Pipe Flange, and push up mutually with the mouth of pipe of water inlet tube of electric water heater water inlet end outer Pipe Flange upper surface; Inner tube water inlet end outer wall is provided with interior Pipe Flange, and push up mutually with the outer tube water inlet of outer tube interior Pipe Flange upper surface.
Be provided with T shape cover between described outer tube and inner tube, T shape cover is provided with the center water channel, and the water inlet end of inner tube packs into the center water channel, the shoulder that interior Pipe Flange is T shape cover.
Described outer tube fin, inner tube fin, outer Pipe Flange, interior Pipe Flange are circular.
The internal diameter of described inner tube is 5～15mm, and the area of the horizontal cross-section in the gross area of the shaft section of each outer tube delivery port, water flowing gap all is not less than the inner circle area of inner tube.
Described outer tube, inner tube any material in plastics, metal, pottery, composite material is made.
The present invention compares produced beneficial effect with background technology:
1, because the present invention passes through the improvement to inner tube delivery port and outer tube delivery port, a kind of cold water thrust scope that enlarges is provided, when keeping cold water to move downward smoothly, keep orderly outlet effect, the water inlet device of electric water heater up risen to promote more hot water; And water feed apparatus of the present invention can also directly be mounted to inner container of electric water heater by water inlet tube of electric water heater from the electric heater outside, therefore it can be effectively at the hot water delivery rate that guarantees electric heater under high prerequisite, easy for installation, be conducive to reduce production costs.
The accompanying drawing explanation: Fig. 1 is use view of the present invention;
Fig. 2 is the structure explosive view of the first embodiment of the present invention;
Fig. 3 is the structure cutaway view of the second embodiment of the present invention;
Fig. 4 is the structure cutaway view of the third embodiment of the present invention;
Fig. 5 is the structure cutaway view of the 4th kind of embodiment of the present invention;
Fig. 6 is the structure cutaway view of the 5th kind of embodiment of the present invention.
The specific embodiment: the arrow in Fig. 1 means water (flow) direction, and dotted line means the thrust scope of water.In the present invention, the water inlet end of each parts refers to position, parts water inlet place and the following position of delivery port, and water side refers to position, parts delivery port place and the above position of delivery port.
As depicted in figs. 1 and 2, this water inlet device of electric water heater comprises outer tube 1 and the inner tube 2 that any material in plastics, metal, pottery, composite material is made.The maximum radial dimension of outer tube 1 water side is less than or equal to the minimum diameter size of water inlet tube of electric water heater, make the water side of outer tube 1 can pierce into water inlet tube of electric water heater and protrude into inner container of electric water heater, outer tube 1 water inlet end is provided with outer tube water inlet 11, the top closure of outer tube 1 water side, the sidewall even circumferential of outer tube 1 water side is provided with outer tube delivery port 12, is provided with inner tube 2 in outer tube 1.Inner tube 2 water inlet ends are provided with inner tube water inlet 21, and top or the sidewall of inner tube 2 water sides are provided with inner tube delivery port 22.Inner tube 2 is placed in outer tube 1 along axis direction, and fastened to each other with outer tube 1.Be provided with water flowing gap 3 between inner tube 2 outer walls and outer tube 1 inwall, water flowing gap 3 is communicated with outer tube delivery port 12 and inner tube delivery port 22.Outer tube delivery port 12 can all be positioned at the below of inner tube delivery port 22, as shown in Fig. 4, Fig. 5, Fig. 6, also can major part be positioned at the below of inner tube delivery port 22, as shown in Figure 3.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, outer tube 1 all interfixes in the mode of interference fit with outer tube 1 with water inlet tube of electric water heater, inner tube 2.The outer wall of outer tube 1 water inlet end is provided with the outer tube fin 13 of being close to the water inlet tube of electric water heater inwall, and the outer wall of inner tube 2 water inlet ends is provided with the inner tube fin 23 of being close to outer tube 1 inwall.Simultaneously, outer tube 1 water inlet end outer wall, inner tube 2 water inlet end outer walls are respectively arranged with outer Pipe Flange 14, interior Pipe Flange 24, push up mutually with the mouth of pipe of water inlet tube of electric water heater water inlet end outer Pipe Flange 14 upper surfaces, push up mutually with the outer tube water inlet 11 of outer tube 1 interior Pipe Flange 24 upper surfaces, and to prevent outer tube 1, inner tube 2, both move on the axis direction of water inlet tube of electric water heater.Outer tube fin 13, inner tube fin 23, outer Pipe Flange 14, interior Pipe Flange 24 are circular, to stop current, prevent that current from walking around inner tube 2 in when water inlet and entering inner bag.
In embodiment as shown in Fig. 3, Fig. 4, Fig. 5, interior Pipe Flange 24 and the structure that inner tube 2 is global formation, reduce die cost.Interior Pipe Flange 24 also can adopt the structure independently arranged with inner tube 2 splits, to reduce the part replacement cost, its embodiment is: be provided with T shape cover 4 between outer tube 1 and inner tube 2, T shape cover 4 is provided with the center water channel, the water inlet end of inner tube 2 packs into the center water channel, interior Pipe Flange 24 is the shoulder of T shape cover 4, as shown in Figure 6.
In the present invention, outer tube delivery port 12 center lines and horizontal angular range can be 0 °～40 °.For convenience of outer tube 1 water outlet downwards better, prevent that current are obstructed when the outer tube water outlet, outer tube delivery port 12 is downward-sloping, therefore outer tube delivery port 12 center lines and horizontal preferred angular range are 5 °～30 ° (not shown).When outer tube delivery port 12 center lines and horizontal angle are less than 5 °, outer tube delivery port 12 is too mild, when current flow out from outer tube delivery port 12, a chain of collision reflection can occur with the mouth wall of outer tube delivery port 12 from top to bottom, produce turbulent flow, affect outlet effect; When outer tube delivery port 12 center lines and horizontal angle are greater than 30 °, outer tube delivery port 12 is excessively steep, and current flow out downwards from outer tube delivery port 12 rapidly, can not fully scatter, and affect the thrust scope of cold water.
For guaranteeing the water-flowing amount of water feed apparatus in the unit interval, the internal diameter of inner tube 2 is 5～15mm.Simultaneously, the area of the horizontal cross-section in the gross area of the shaft section of each outer tube delivery port 12, water flowing gap 3 (ignoring the arc transition position on outer tube 1 top and the gap between inner tube 2) all is not less than the inner circle area of inner tube 2, guarantee that exhalant canal is not less than intake tunnel, make water outlet more smooth, prevent that hydraulic pressure from gathering.
The operation principle of this water inlet device of electric water heater: the current that enter inner bag are introduced into inner tube 2, then turn back and flow in the water flowing gap 3 between outer tube 1 and inner tube 2, then flow into inner bag from the outer tube delivery port 12 of outer tube 1.While turning back due to current, flow downward, when current flow out from outer tube delivery port 12, current are under tap water hydraulic, gravity and effect of inertia, and the trend of the motion that keeps down, flow into inner bag, as shown in Figure 2.Cold water axial surrounding centered by water inlet tube of electric water heater is sprayed and is entered inner bag, and the state of the motion that keeps down, on the one hand, cold water sprays the thrust scope that can enlarge cold water to surrounding, promoting more hot water up rises, on the other hand, cold water moves downward and can reduce impact and the disturbance of cold water to the hot and cold water generation of layering in inner bag, prevents that cold water from directly rising to the hot water layer and causing hot water layer's water temperature to descend.
During installation, first inner tube 2 is mounted in outer tube 1, both are combined to form water feed apparatus, then water feed apparatus integral body directly is mounted to inner container of electric water heater by water inlet tube of electric water heater from the electric heater outside, easy for installation, are conducive to reduce production costs.
Claims (8)
1. the water feed apparatus of an electric heater, it comprises outer tube (1) and inner tube (2), outer tube (1) water inlet end is provided with outer tube water inlet (11), the top closure of outer tube (1) water side, the sidewall of outer tube (1) water side is provided with outer tube delivery port (12), outer tube (1) water side is pierced into water inlet tube of electric water heater and is extend into inner container of electric water heater, inner tube (2) water inlet end is provided with inner tube water inlet (21), inner tube (2) water side is provided with inner tube delivery port (22), be provided with water flowing gap (3) between inner tube (2) outer wall and outer tube (1) inwall, water flowing gap (3) is communicated with outer tube delivery port (12) and inner tube delivery port (22),
It is characterized in that: described outer tube delivery port (12) center line and horizontal angular range are 5 ~ 30, outer tube delivery port (12) is downward-sloping, described inner tube delivery port (22) is arranged on the top of inner tube (2) water side, and outer tube delivery port (12) is positioned at the below of inner tube delivery port (22).
2. the water feed apparatus of electric heater according to claim 1, it is characterized in that: the maximum radial dimension of described outer tube (1) water side is less than or equal to the minimum diameter size of water inlet tube of electric water heater.
3. the water feed apparatus of electric heater according to claim 1 and 2, it is characterized in that: described outer tube (1) and inner tube (2) axially are nested, the outer wall of outer tube (1) water inlet end is provided with the outer tube fin (13) of being close to the water inlet tube of electric water heater inwall, the outer wall of inner tube (2) water inlet end is provided with the inner tube fin (23) of being close to outer tube (1) inwall, outer tube (1) and water inlet tube of electric water heater interference fit, inner tube (2) and outer tube (1) interference fit.
4. the water feed apparatus of electric heater according to claim 3, it is characterized in that: described outer tube (1) water inlet end outer wall is provided with outer Pipe Flange (14), and push up mutually with the mouth of pipe of water inlet tube of electric water heater water inlet end outer Pipe Flange (14) upper surface; Inner tube (2) water inlet end outer wall is provided with interior Pipe Flange (24), and push up mutually with the outer tube water inlet (11) of outer tube (1) interior Pipe Flange (24) upper surface.
5. the water feed apparatus of electric heater according to claim 4, it is characterized in that: be provided with T shape cover (4) between described outer tube (1) and inner tube (2), T shape cover (4) is provided with the center water channel, the water inlet end of inner tube (2) packs into the center water channel, and interior Pipe Flange (24) is the shoulder of T shape cover (4).
6. the water feed apparatus of electric heater according to claim 5, it is characterized in that: described outer tube fin (13), inner tube fin (23), outer Pipe Flange (14), interior Pipe Flange (24) are circular.
7. the water feed apparatus of electric heater according to claim 1 and 2, it is characterized in that: the internal diameter of described inner tube (2) is 5～15mm, and the area of the horizontal cross-section of the gross area of the shaft section of each outer tube delivery port (12), water flowing gap (3) all is not less than the inner circle area of inner tube (2).
8. the water feed apparatus of electric heater according to claim 1 and 2, it is characterized in that: described outer tube (1), inner tube (2) any material in plastics, metal, pottery, composite material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207895 CN102287919B (en) | 2010-06-15 | 2010-06-15 | Water inlet device of electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207895 CN102287919B (en) | 2010-06-15 | 2010-06-15 | Water inlet device of electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102287919A CN102287919A (en) | 2011-12-21 |
| CN102287919B true CN102287919B (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010207895 Active CN102287919B (en) | 2010-06-15 | 2010-06-15 | Water inlet device of electric water heater |
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| CN (1) | CN102287919B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121698A (en) * | 2014-07-03 | 2014-10-29 | 孙冬梅 | Constant-flow type electromagnetic auxiliary heating device of water heater |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4282421A (en) * | 1978-04-02 | 1981-08-04 | Arieh Hadar | Dual compartment electric water heater |
| US5257341A (en) * | 1992-06-19 | 1993-10-26 | A-Dec, Inc. | Compact in-line thermostatically controlled electric water heater for use with dental instruments |
| CN2893521Y (en) * | 2006-03-11 | 2007-04-25 | 浙江康泉电器有限公司 | Water storing type water heater high hot water discharging rate water inlet tube |
| CN2908945Y (en) * | 2006-05-26 | 2007-06-06 | 深圳市金真富五金电器有限公司 | Non-return valve for water inlet of electric water heater |
| CN201155625Y (en) * | 2008-02-22 | 2008-11-26 | 艾欧史密斯(中国)热水器有限公司 | Casing tube type admitting pipe |
| CN201344633Y (en) * | 2009-01-16 | 2009-11-11 | 樱花卫厨（中国）股份有限公司 | Improved structure of water inlet tube of electric water heater |
| CN201724405U (en) * | 2010-06-15 | 2011-01-26 | 佛山市高明万和电气有限公司 | Water inlet device of electric water heater |
-
2010
- 2010-06-15 CN CN 201010207895 patent/CN102287919B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4282421A (en) * | 1978-04-02 | 1981-08-04 | Arieh Hadar | Dual compartment electric water heater |
| US5257341A (en) * | 1992-06-19 | 1993-10-26 | A-Dec, Inc. | Compact in-line thermostatically controlled electric water heater for use with dental instruments |
| CN2893521Y (en) * | 2006-03-11 | 2007-04-25 | 浙江康泉电器有限公司 | Water storing type water heater high hot water discharging rate water inlet tube |
| CN2908945Y (en) * | 2006-05-26 | 2007-06-06 | 深圳市金真富五金电器有限公司 | Non-return valve for water inlet of electric water heater |
| CN201155625Y (en) * | 2008-02-22 | 2008-11-26 | 艾欧史密斯(中国)热水器有限公司 | Casing tube type admitting pipe |
| CN201344633Y (en) * | 2009-01-16 | 2009-11-11 | 樱花卫厨（中国）股份有限公司 | Improved structure of water inlet tube of electric water heater |
| CN201724405U (en) * | 2010-06-15 | 2011-01-26 | 佛山市高明万和电气有限公司 | Water inlet device of electric water heater |
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| Publication number | Publication date |
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| CN102287919A (en) | 2011-12-21 |
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| C06 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 528513, Foshan Gaoming District Yang Hezhen (people and) Yang West Avenue on the east side Applicant after: Guangdong Vanward Electric Co., Ltd. Address before: 528524, Gaoming Town, Gaoming District, Guangdong, Foshan Province, No. 185, No. 187 Applicant before: Foshan Gaoming Vanward Electric Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: FOSHAN GAOMING VANWARD ELECTRIC CO., LTD. TO: GUANGDONG VANWARD ELECTRIC CO., LTD. |
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