CN217952697U - Electric water heater based on double-pipe heat exchanger - Google Patents
Electric water heater based on double-pipe heat exchanger Download PDFInfo
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- CN217952697U CN217952697U CN202222287277.XU CN202222287277U CN217952697U CN 217952697 U CN217952697 U CN 217952697U CN 202222287277 U CN202222287277 U CN 202222287277U CN 217952697 U CN217952697 U CN 217952697U
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Abstract
The utility model discloses an electric water heater based on double pipe heat exchanger, include: the inner container is internally provided with a heat exchange medium; the electric heating assembly comprises a sleeve type heat exchanger, a water pump and a heater; wherein the double-pipe heat exchanger comprises an inner heat exchange pipe and an outer heat exchange pipe; a first connecting pipe is communicated between the inner container and the heater, a second connecting pipe is communicated between the heater and the inner water inlet of the inner heat exchange pipe, a third connecting pipe is communicated between the inner water outlet of the inner heat exchange pipe and the water pump, and a fourth connecting pipe is communicated between the water pump and the inner container; wherein the outer water inlet of outer heat transfer pipe is used for communicateing external first water pipe, and the mouth of a river of going out of outer heat transfer pipe is used for communicateing external second water pipe. The utility model discloses a two independent inner loop water routes and outer water route, heat transfer medium in the inner loop water route and the running water in the outer water route can not contact and obscure together, can stop electric water heater's inner bag effectively and arouse user's skin infection because of breeding the bacterium.
Description
Technical Field
The utility model relates to a heating technology field especially relates to an electric water heater based on double-pipe heat exchanger.
Background
In the related technology, the existing electric water heater can store tap water in the inner container, when hot water is needed to be used, the tap water in the inner container can be directly heated, the heated tap water is mixed with a certain amount of cold tap water and then is conveyed to a user, and when the tap water in the inner container is insufficient, the tap water is directly added into the inner container, and the process is repeated. However, since the electric water heater is not used frequently by users, the tap water in the inner container is not replaced quickly, if the tap water in the inner container is not replaced for a long time, the tap water is easy to turn into 'dead water' to breed bacteria, and when the user uses the 'dead water', the problem of skin infection is easy to cause, and an improvement exists.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an electric water heater based on a double pipe heat exchanger to avoid generating "dead water".
According to the utility model discloses electric water heater based on double pipe heat exchanger, include:
the heat exchanger comprises a liner, wherein a heat exchange medium is arranged in the liner;
the electric heating assembly comprises a double-pipe heat exchanger, a water pump and a heater;
the double-pipe heat exchanger comprises an inner heat exchange pipe and an outer heat exchange pipe, wherein the inner heat exchange pipe is provided with an inner water inlet and an inner water outlet, and the outer heat exchange pipe is provided with an outer water inlet and an outer water outlet;
a first connecting pipe is communicated between the inner container and the heater, a second connecting pipe is communicated between the heater and the inner water inlet of the inner heat exchange pipe, a third connecting pipe is communicated between the inner water outlet of the inner heat exchange pipe and the water pump, and a fourth connecting pipe is communicated between the water pump and the inner container;
the external water inlet of the external heat exchange pipe is used for being communicated with an external first water pipe, the external water outlet of the external heat exchange pipe is used for being communicated with an external second water pipe, the external first water pipe is used for feeding cold running water, and the external second water pipe is used for feeding hot running water after heat exchange of the sleeve pipe type heat exchanger.
According to the utility model discloses electric water heater based on double-pipe heat exchanger adopts two independent inner loop water routes and outer water route, and the running water in heat transfer medium in the inner loop water route and the outer water route can not contact and obscure together, even if heat transfer medium self in the inner bag has the bacterium, also can not mix in the running water, and the running water that the user waited to use is "running water", is not "stagnant water", can stop electric water heater's inner bag effectively and arouse user's skin infection because of breeding the bacterium.
According to the utility model discloses some embodiments, interior heat exchange tube with outer heat exchange tube is the screw thread form and sets up along inner bag axial extension, interior heat exchange tube endotheca in outer heat exchange tube.
According to the utility model discloses some embodiments, the surface of inner bag is provided with the link, outer heat exchange tube with be provided with the staple bolt between the link.
According to some embodiments of the present invention, the connecting frame further comprises a housing, the inner container is disposed in the housing, the housing is radially provided with an installation notch in a penetrating manner, and one end of the connecting frame away from the inner container extends out of the installation notch;
the water pump is arranged on the outer side of the inner container, the heater is arranged in the control box, and the water pump is arranged on the outer side of the inner container.
According to the utility model discloses some embodiments, the shell is along self axial direction's both ends fixedly connected with end plate, the end plate middle part runs through and can dismantle in the department of running through along self axial direction and be connected with the shrouding.
According to some embodiments of the present invention, the inner container, the first connecting pipe, the heater, the second connecting pipe, the inner heat exchanging pipe, the third connecting pipe, the water pump, and the fourth connecting pipe form an inner circulation water path;
the external first water pipe, the external heat exchange pipe and the external second water pipe form an external water path;
the flow direction of the heat exchange medium in the inner circulating water path is opposite to the flow direction of the tap water in the outer water path.
According to the utility model discloses some embodiments, first connecting pipe is kept away from the one end of heater set up in the inner bag, the fourth connecting pipe is kept away from the one end of water pump set up in the inner bag, just first connecting pipe is kept away from the horizontal plane that the one end of heater was located is higher than the fourth connecting pipe is kept away from the horizontal plane that the one end of water pump was located.
According to some embodiments of the present invention, the heat transfer medium is deionized water.
According to some embodiments of the present invention, the heat exchange medium is tap water.
According to some embodiments of the present invention, the water pump is a brushed impeller pump
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an electric water heater according to an embodiment of the present invention;
fig. 2 is a schematic view of another structure of an electric water heater according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an electric heating assembly and an inner container in an electric water heater according to an embodiment of the present invention;
FIG. 4 is a schematic view of the electric heater assembly and the inner container of the electric water heater according to the embodiment of the present invention;
FIG. 5 is a schematic view of another internal structure of an electric heater assembly and a liner assembly of an electric water heater according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of A in FIG. 5;
an icon: 1-an inner container, 11-a connecting frame, 12-a hoop, 13-an electric heating pipe, 21-a double-pipe heat exchanger, 211-an inner heat exchange pipe, 212-an outer heat exchange pipe, 22-a water pump, 23-a heater, 31-a first connecting pipe, 32-a second connecting pipe, 33-a third connecting pipe, 34-a fourth connecting pipe, 35-an external first water pipe, 36-an external second water pipe, 4-a shell, 41-an installation notch, 42-an end plate, 43-a sealing plate, 43-an installation frame and 5-a control box.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
An electric water heater based on a double pipe heat exchanger 21 according to an embodiment of the present invention will be described with reference to fig. 1 to 6, wherein the electric water heater can be applied to the occasions requiring heating, such as showering, washing hands, washing vegetables, etc.
In some embodiments, referring to fig. 1-3, an electric water heater based on a double pipe heat exchanger 21 includes: the heat exchanger comprises an inner container 1, wherein a heat exchange medium is arranged in the inner container 1; an electric heating assembly including a double pipe heat exchanger 21, a water pump 22 and a heater 23; the double-pipe heat exchanger 21 comprises an inner heat exchange pipe 211 and an outer heat exchange pipe 212, the inner heat exchange pipe 211 is provided with an inner water inlet and an inner water outlet, and the outer heat exchange pipe 212 is provided with an outer water inlet and an outer water outlet; a first connecting pipe 31 is communicated between the liner 1 and the heater 23, a second connecting pipe 32 is communicated between the heater 23 and the inner water inlet of the inner heat exchange pipe 211, a third connecting pipe 33 is communicated between the inner water outlet of the inner heat exchange pipe 211 and the water pump 22, and a fourth connecting pipe 34 is communicated between the water pump 22 and the liner 1; wherein the outer water inlet of the outer heat exchange pipe 212 is used for communicating with the external first water pipe 35, the outer water outlet of the outer heat exchange pipe 212 is used for communicating with the external second water pipe 36, the external first water pipe 35 is used for cold water inlet, and the external second water pipe 36 is used for hot tap water outlet after heat exchange is carried out by the double-pipe heat exchanger 21.
The electric water heater is provided with two independent water ways, namely an inner circulation water way and an outer water way, wherein the inner circulation water way is formed by the inner container 1, the first connecting pipe 31, the heater 23, the second connecting pipe 32, the inner heat exchange pipe 211, the third connecting pipe 33, the water pump 22 and the fourth connecting pipe 34 in a circulating mode, the outer water way is formed by the external first water pipe 35, the external heat exchange pipe 212 and the external second water pipe 36, the inner circulation water way and the outer water way are mutually independent, and heat exchange is carried out at the position of the sleeve type heat exchanger 21.
In the internal circulation water path, the heat exchange medium in the inner container 1 is circulated in the inner container 1 through the first connecting pipe 31, the heat exchange pipe 211 in the second connecting pipe 32 of the heater 23, the third connecting pipe 33, the water pump 22 and the fourth connecting pipe 34, wherein the temperature stability of the heat exchange medium is effectively maintained through the heater 23 to make up the heat dissipated in the flowing and heat exchange processes; and moreover, the heat exchange medium is kept stable in presetting, and the heat exchange efficiency can be improved during subsequent heat exchange.
In the external water path, external cold tap water flows in through the external first water pipe 35, exchanges heat with the heat exchange medium in the internal heat exchange pipe 211 in the external heat exchange pipe 212, and the heated tap water flows out from the external second water pipe 36 for users to use.
Two independent inner loop water routes and outer water route, the heat transfer medium in the inner loop water route can not contact with the running water in the outer water route and obscure together, even if the heat transfer medium self in inner bag 1 has the bacterium, also can not mix in the running water, the running water that the user waited to use is "running water", and is not "stagnant water", can stop electric water heater's inner bag 1 effectively and arouse user's skin infection because of breeding the bacterium.
In some embodiments, the electric heating tube 13 is disposed in the inner container 1 to heat the heat exchange medium in the inner container 1, so as to maintain the temperature of the heat exchange medium and indirectly improve the heat exchange efficiency.
In some embodiments, referring to fig. 2 to 5, in the electric water heater based on the double pipe heat exchanger 21, the inner heat exchange pipe 211 and the outer heat exchange pipe 212 are threaded and extend along the axial direction of the liner 1, and the inner heat exchange pipe 211 is sleeved in the outer heat exchange pipe 212. The thread-shaped structure effectively prolongs the heat exchange time of the inner heat exchange tube 211 and the outer heat exchange tube 212, so that the heat exchange medium and the external tap water can fully exchange heat, and a good heat exchange effect is ensured; in addition, the double pipe heat exchanger 21 is horizontally arranged in the whole, so that the height of the double pipe heat exchanger can be effectively reduced, and the miniaturization of equipment is realized.
In some embodiments, the inner heat exchange tube 211 and the outer heat exchange tube 212 are threaded and can also extend vertically, which can also achieve a good heat exchange effect.
In some embodiments, referring to fig. 1 to 5, in the electric water heater based on the double pipe heat exchanger 21, the connection frame 11 is disposed on the outer surface of the inner container 1, and the hoop 12 is disposed between the outer heat exchange pipe 212 and the connection frame 11. The anchor ear 12 can fix the double pipe heat exchanger 21 on the connecting frame 11, so as to prevent the double pipe heat exchanger 21 from shaking and even dislocating during working to affect the heat exchange work and the heat exchange effect. The connecting frame 11 can fix the double pipe heat exchanger 21 on the inner container 1, so as to provide a supporting force for the double pipe heat exchanger 21, and effectively improve the overall structural strength and structural stability.
In some embodiments, the anchor ear 12 may be a U-shaped anchor ear 12 to adapt to the screw-shaped double pipe heat exchanger 21, or a plurality of anchor ears 12 may be provided to improve the fixing stability of the anchor ear 12.
In some embodiments, referring to fig. 1 to 5, the electric water heater based on the double pipe heat exchanger 21 further includes a housing 4, the inner container 1 is disposed in the housing 4, the housing 4 is radially provided with an installation notch 41 through, and an end of the connecting frame 11 away from the inner container 1 extends out of the installation notch 41; the water heater further comprises a control box 5, the control box 5 is arranged on the outer surface of the shell 4, and the double-pipe heat exchanger 21, the water pump 22 and the heater 23 are arranged on the outer side of the inner container 1 and in the control box 5. Wherein, the connecting frame 11 may be concave.
When the equipment, the link 11 can pass the installation breach 41 of shell 4, and at least part can extend installation breach 41, extends to the outside of shell 4, and rethread control box 5 shelters from relevant electric heating element in control box 5, can utilize the effect of sheltering from of shell 4 and control box 5 to come waterproofly, and set up installation breach 41, the holistic size of shell 4 can reduce, in order to realize that equipment is miniaturized, and more can laminate the shape setting of inner bag 1.
In some embodiments, the housing 4 and the liner 1 can be cylindrical to reduce the space occupied.
In some embodiments, referring to fig. 1, in the electric water heater based on the double pipe heat exchanger 21, the two ends of the outer shell 4 along the axial direction of the outer shell are fixedly connected with the end plates 42, the middle parts of the end plates 42 penetrate along the axial direction of the outer shell, and the sealing plates 43 are detachably connected at the penetrating parts. Wherein, the through hole in the middle part of end plate 42 is circular, and the diameter is greater than the diameter of inner bag 1, and when the equipment, inner bag 1 can follow the inside of the through hole installation shell 4 in the middle part of end plate 42, fixes shrouding 43 on the through hole in the middle part of end plate 42 again, and the spare part in the shell 4 of follow-up dismantlement shrouding 43 of still being convenient for is maintained.
In some embodiments, the sealing plate 43 and the end plate 42 can be detachable by a snap connection, for example, clockwise rotation of the sealing plate 43 can enable the latch to be snapped into the snap groove for fixation, and counterclockwise rotation of the sealing plate 43 can enable the latch to be disengaged from the snap groove for detachment.
In some embodiments, the closing plate 43 and the end plate 42 are detachably connected by bolts to achieve the fixing and detaching functions.
In some embodiments, referring to fig. 2 to 5, in the electric water heater based on the double pipe heat exchanger 21, the inner container 1, the first connection pipe 31, the heater 23, the second connection pipe 32, the inner heat exchange pipe 211, the third connection pipe 33, the water pump 22, and the fourth connection pipe 34 form an inner circulation water path; the external first water pipe 35, the external heat exchange pipe 212 and the external second water pipe 36 form an external water path; the flow direction of the heat exchange medium in the internal circulation water channel is opposite to the flow direction of the tap water in the external water channel.
The internal circulation water path and the external water path are opposite in flow direction, so that the cold external tap water and the hot heat exchange medium are opposite in flow direction, and can form counter flow to improve the heat exchange efficiency, so that the cold external tap water can be fully subjected to heat exchange.
In some embodiments, the flow direction of the heat exchange medium is: the water heater comprises an inner container 1, a first connecting pipe 31, a heater 23, a second connecting pipe 32, an inner heat exchange pipe 211, a third connecting pipe 33, a water pump 22, a fourth connecting pipe 34 and the inner container 1, wherein the flowing direction of tap water is as follows: the external first water pipe 35, the external heat exchange pipe 212 and the external second water pipe 36 form a reverse-flow internal circulation water path and an external water path.
In some embodiments, the flow direction of the heat exchange medium may also be: the water heater comprises an inner container 1, a fourth connecting pipe 34, a water pump 22, a third connecting pipe 33, an inner heat exchange pipe 211, a second connecting pipe 32, a heater 23, a first connecting pipe 31 and the inner container 1, wherein the flowing direction of tap water can be as follows: the external second water pipe 36-the external heat exchange pipe 212-the external first water pipe 35, so that a counter-flow internal circulation water path and an external water path can be formed.
In some embodiments, referring to fig. 4 and 5, in the electric water heater based on the double pipe heat exchanger 21, one end of the first connection pipe 31 away from the heater 23 is disposed in the inner container 1, one end of the fourth connection pipe 34 away from the water pump 22 is disposed in the inner container 1, and one end of the first connection pipe 31 away from the heater 23 is located at a higher level than one end of the fourth connection pipe 34 away from the water pump 22.
When the flowing direction of the internal circulation water path is inner container 1-fourth connecting pipe 34-water pump 22-third connecting pipe 33-inner heat exchange pipe 211-second connecting pipe 32-heater 23-first connecting pipe 31-inner container 1, at this moment, the heat exchange medium in the inner container 1 flows out of the heater 23 from the first connecting pipe 31, then flows into the inner container 1 through the second connecting pipe 32, inner heat exchange pipe 211, third connecting pipe 33 and water pump 22 and then through the first connecting pipe 31, so that the heat exchange medium flows out of the first connecting pipe 31 and then flows in from the fourth connecting pipe 34, the level of the flowing water is lower than the level of the flowing water, and the heat exchange medium in the inner container 1 flows out more smoothly by combining with the water pump 22.
In some embodiments, in an electric water heater based on the double pipe heat exchanger 21, the heat exchange medium is deionized water. Because the conductivity of the deionized water is very low and is non-conductive, the deionized water can be used as an insulating medium, and even if the electric leakage condition occurs, the deionized water can not cause electric shock of a user, and has high safety performance. Moreover, the deionized water does not contain scaling ions such as calcium ions, magnesium ions and the like, so that scale is not easily generated in the liner 1 and the inner heat exchange tube 211.
In some embodiments, the heat exchange medium may also be tap water, which is low cost and readily available.
In some embodiments, the water pump 22 is a brushed impeller pump, which has the advantage of low vibration and low cost.
In some embodiments, the water pump 22 is a brushless impeller pump, which has the advantages of low vibration and low noise.
In some embodiments, the outer surface of the housing 4 is further provided with a pair of mounting brackets 43, and the present invention is mounted on a wall in a desired place, such as a bathroom, a toilet, etc., by the pair of mounting brackets 43. The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by combining the above technical features at will. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (10)
1. An electric water heater based on a double pipe heat exchanger, comprising:
the heat exchanger comprises a liner, wherein a heat exchange medium is arranged in the liner;
the electric heating assembly comprises a double-pipe heat exchanger, a water pump and a heater;
the double-pipe heat exchanger comprises an inner heat exchange pipe and an outer heat exchange pipe, wherein the inner heat exchange pipe is provided with an inner water inlet and an inner water outlet, and the outer heat exchange pipe is provided with an outer water inlet and an outer water outlet;
a first connecting pipe is communicated between the inner container and the heater, a second connecting pipe is communicated between the heater and the inner water inlet of the inner heat exchange pipe, a third connecting pipe is communicated between the inner water outlet of the inner heat exchange pipe and the water pump, and a fourth connecting pipe is communicated between the water pump and the inner container;
the external water inlet of the external heat exchange pipe is used for being communicated with an external first water pipe, the external water outlet of the external heat exchange pipe is used for being communicated with an external second water pipe, the external first water pipe is used for feeding cold tap water, and the external second water pipe is used for feeding hot tap water after heat exchange of the double-pipe heat exchanger.
2. The double pipe heat exchanger-based electric water heater according to claim 1, wherein: the inner heat exchange tube and the outer heat exchange tube are in a thread shape and extend axially along the inner container, and the inner heat exchange tube is sleeved in the outer heat exchange tube.
3. The double pipe heat exchanger-based electric water heater according to claim 2, wherein: the outer surface of the inner container is provided with a connecting frame, and a hoop is arranged between the outer heat exchange tube and the connecting frame.
4. The double pipe heat exchanger-based electric water heater according to claim 3, wherein: the connecting frame is characterized by further comprising a shell, the inner container is arranged in the shell, the shell is provided with an installation notch in a penetrating mode along the radial direction, and one end, far away from the inner container, of the connecting frame extends out of the installation notch;
the water pump is arranged on the outer side of the inner container, the heater is arranged in the control box, and the water pump is arranged on the outer side of the inner container.
5. The double pipe heat exchanger-based electric water heater according to claim 4, wherein: the shell is along self axial direction's both ends fixedly connected with end plate, the end plate middle part runs through and can dismantle in the department of running through along self axial direction and be connected with the shrouding.
6. An electric water heater based on double pipe heat exchanger according to claim 1, characterized in that: the inner container, the first connecting pipe, the heater, the second connecting pipe, the inner heat exchange pipe, the third connecting pipe, the water pump and the fourth connecting pipe form an inner circulating water path;
the external first water pipe, the external heat exchange pipe and the external second water pipe form an external water path;
the flow direction of the heat exchange medium in the inner circulating water path is opposite to the flow direction of the tap water in the outer water path.
7. The double pipe heat exchanger-based electric water heater according to claim 1, wherein: one end, far away from the heater, of the first connecting pipe is arranged in the inner container, one end, far away from the water pump, of the fourth connecting pipe is arranged in the inner container, and the horizontal plane, at which one end, far away from the heater, of the first connecting pipe is located, is higher than the horizontal plane, at which one end, far away from the water pump, of the fourth connecting pipe is located.
8. An electric water heater based on double pipe heat exchanger according to any one of claims 1-6, characterized in that: the heat exchange medium is deionized water.
9. An electric water heater based on double pipe heat exchanger according to any one of claims 1-6, wherein: the heat exchange medium is tap water.
10. An electric water heater based on double pipe heat exchanger according to any one of claims 1-6, wherein: the water pump is a brush impeller pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222287277.XU CN217952697U (en) | 2022-08-29 | 2022-08-29 | Electric water heater based on double-pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222287277.XU CN217952697U (en) | 2022-08-29 | 2022-08-29 | Electric water heater based on double-pipe heat exchanger |
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| Publication Number | Publication Date |
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| CN217952697U true CN217952697U (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222287277.XU Active CN217952697U (en) | 2022-08-29 | 2022-08-29 | Electric water heater based on double-pipe heat exchanger |
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| Country | Link |
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| CN (1) | CN217952697U (en) |
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2022
- 2022-08-29 CN CN202222287277.XU patent/CN217952697U/en active Active
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