CN209801756U - Fluid heating device and electric water heater - Google Patents

Fluid heating device and electric water heater Download PDF

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Publication number
CN209801756U
CN209801756U CN201920219901.8U CN201920219901U CN209801756U CN 209801756 U CN209801756 U CN 209801756U CN 201920219901 U CN201920219901 U CN 201920219901U CN 209801756 U CN209801756 U CN 209801756U
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layer
fluid
finned tube
runner
heating device
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杨志明
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Shenzhen Weite Xinda Technology Co Ltd
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Shenzhen Weite Xinda Technology Co Ltd
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Abstract

The utility model belongs to the technical field of the fluid heating, a fluid heating device and electric water heater are related to. The fluid heating device comprises a shell, wherein a fluid inlet and a fluid outlet are respectively arranged on the shell, a first layer of flow channel communicated with the fluid inlet and a second layer of flow channel communicated with the fluid outlet are arranged in the shell, and the second layer of flow channel is sleeved in the first layer of flow channel; be equipped with the anti-runner of at least one deck between first layer runner and the second laminar flow way, through the backward flow way intercommunication between first layer runner and the second laminar flow way, be equipped with heating element between second layer runner and the backward flow way. The utility model discloses can maximize the conversion heat energy, ensure safe in utilization simultaneously.

Description

Fluid heating device and electric water heater
Technical Field
The utility model belongs to the technical field of the fluid heating, a fluid heating device and electric water heater are related to.
Background
in daily life, devices for heating fluid are widely applied, such as: hair dryers for heating air, electric water heaters for heating water, and heating of oil or other flowing media used in industrial production. The single-layer flow channel arranged in the existing heating device has the advantages that a part of heat energy can be directly dissipated into the air through the shell in the using process, meanwhile, the heating mode of the single-layer flow channel has certain damage to the device, the shell can be damaged at high temperature along with the prolonging of the using time, the damage to a user can be caused, and the use cost is high and unsafe.
Disclosure of Invention
An object of the utility model is to provide a fluid heating device and electric water heater to the not enough of prior art to ensure to realize energy-conserving, safe effect in the use.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A fluid heating device comprises a shell, wherein a fluid inlet and a fluid outlet are respectively arranged on the shell, a first layer of flow channel communicated with the fluid inlet and a second layer of flow channel communicated with the fluid outlet are arranged in the shell, and the second layer of flow channel is sleeved in the first layer of flow channel; be equipped with the anti-runner of at least one deck between first layer runner and the second laminar flow way, through the backward flow way intercommunication between first layer runner and the second laminar flow way, be equipped with heating element between second layer runner and the backward flow way.
Furthermore, a first backflow pipe is arranged in the shell, the first backflow pipe is sleeved outside the heating assembly, and a first backflow channel is formed between the first backflow pipe and the heating assembly.
Furthermore, a second backflow pipe is further sleeved on the outer side of the first backflow pipe, and a second backflow channel is formed between the first backflow pipe and the second backflow pipe.
Furthermore, the outer side of the first reflux pipe is sequentially sleeved with a second heating layer and a third finned pipe from inside to outside, and the side wall of the second heating layer is attached to the outer wall of the first reflux pipe and the inner wall of the third finned pipe respectively.
Further, a third return channel is formed between the third finned tube and the second reflux tube.
Furthermore, the heating assembly comprises a first finned tube, a second finned tube and a first heating layer, the second finned tube is sleeved in the first finned tube, the first heating layer is arranged between the first finned tube and the second finned tube, and the side wall of the first heating layer is attached to the inner wall of the first finned tube and the outer wall of the second finned tube respectively.
Furthermore, a first return runner is formed between the first finned tube and the first reflux tube, and a second layer of runners is formed in the second finned tube.
Further, the shell comprises an upper shell section and a lower shell section, and the upper shell section is in threaded connection with the lower shell section.
furthermore, a cavity for installing a temperature control device is arranged on the shell close to the fluid outlet, and a probe hole is formed in one side of the cavity close to the fluid outlet.
Furthermore, the utility model also provides an electric water heater, including the working shaft, still include above-mentioned arbitrary one the fluid heating device, the output of working shaft is linked together with fluid heating device's fluid entry.
The utility model has the advantages that:
The flow passages directly heated by the utility model are all positioned in the inner part, and the flow passages contacted with the shell are not provided with heating components, so the surface of the shell is at normal temperature, and no additional heat insulation treatment is needed, thereby avoiding scalding the user; meanwhile, heat generated by the heating assembly is almost completely absorbed by fluid and is not easy to dissipate to the outside from the shell, the heat utilization rate is close to hundred percent, and energy is saved.
Drawings
FIG. 1 is a schematic view of the internal structure of a fluid adding apparatus;
FIG. 2 is a schematic sectional view showing the fluid heating apparatus in example 1;
FIG. 3 is a schematic sectional view showing a fluid heating apparatus according to example 2;
FIG. 4 is a schematic sectional view showing a fluid heating apparatus according to example 3.
The labels in the figure are: the heat exchanger comprises a shell 1, an upper shell section 101, a lower shell section 102, a fluid inlet 103, a wiring outlet 104, a fluid outlet 105, a probe hole 106, a first counter flow tube 2, a first finned tube 3, a first heat-generating layer 4, a second finned tube 5, a second counter flow tube 6, a second heat-generating layer 7, a third finned tube 8, a first layer of flow channels 901, a first counter flow channel 902, a second layer of flow channels 903, a second layer of flow channels 904, a second counter flow channel and a third counter flow channel 905.
Detailed Description
reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1
Referring to fig. 1 and fig. 2, in an embodiment, a fluid heating apparatus is provided, which includes a housing 1, where the housing 1 is provided with a fluid inlet 103 and a fluid outlet 105, respectively, a first layer of flow channels 901 communicating with the fluid inlet 103 and a second layer of flow channels 903 communicating with the fluid outlet 105 are provided in the housing 1, and the second layer of flow channels 903 are sleeved in the first layer of flow channels 901; a reverse runner is arranged between the first-layer runner 901 and the second-layer runner 903, the first-layer runner 901 and the second-layer runner 903 are communicated through the reverse runner, and a heating assembly is arranged between the second-layer runner 903 and the reverse runner.
In an embodiment, the housing 1 includes an upper housing section 101 and a lower housing section 102, and the upper housing section 101 and the lower housing section are connected by screw thread fit to facilitate installation of the fluid heating apparatus; the shell 1 is made of a material with poor thermal conductivity and corrosion resistance; in this embodiment, the housing 1 is made of PE, is not easy to conduct heat, and is corrosion-resistant and insulating, and is easy to form the appearance of the product and to beautify the surface. In an embodiment, the fluid inlet 103 is disposed at an end of the upper casing section 101 away from the lower casing section 102, and the fluid outlet 105 is disposed at an end of the lower casing section 102 away from the upper casing section 101 away from the lower casing section 102; a wiring outlet 104 is further formed in one end, far away from the lower shell section 102, of the upper shell section 101, so that a connecting wire can be conveniently connected to a heating assembly in the shell 1; a cavity for accommodating the temperature control device is arranged at a position of the lower shell section 102 close to the fluid outlet 105, and a probe hole 106 is arranged at one side of the cavity close to the fluid outlet 105, so that a probe of the temperature control device can conveniently detect the temperature of the fluid at the fluid outlet 105.
In the embodiment, a first backflow pipe 2 is arranged in the shell 1, and the first backflow pipe 2 is sleeved outside the heating assembly and is positioned and fixed by the shell 1; a first backflow channel 902 is formed between the first backflow pipe 2 and the heating assembly, and a first layer of flow channel 901 is formed between the first backflow pipe 2 and the shell 1; the first layer runner 901 is communicated with the first counter runner 902, and the first counter runner 902 is communicated with the second layer runner 903; the first backflow pipe 2 is made of stainless steel materials, and has the characteristics of good heat conductivity and corrosion resistance. When in use, fluid enters the first counter flow channel 902 after passing through the first layer flow channel 901, and the flowing direction of the fluid in the first counter flow channel 902 is opposite to that in the first layer flow channel 901; after the fluid enters the second laminar flow channel 903 from the first back flow channel 902, the flow direction is reversed.
In an embodiment, the heating assembly comprises a first finned tube 3, a second finned tube 5 and a first heat-generating layer 4, the second finned tube 5 is sleeved in the first finned tube 3, the first heat-generating layer 4 is arranged between the first finned tube 3 and the second finned tube 5, and the side wall of the first heat-generating layer 4 is attached to the inner wall of the first finned tube 3 and the outer wall of the second finned tube 5 respectively. In the embodiment, the heating component is sleeved in the first backflow pipe 2, and is positioned and fixed by the shell 1; a first return runner 902 is formed between the first finned tube 3 and the first return tube 2, and a second layer of runners 903 is formed in the second finned tube 5; the fins of the first finned tube 3 extend towards the direction close to the first reflux tube 2, and the fins of the second finned tube 5 extend towards the direction far away from the first heat-generating layer 4; the fins of the first finned tube 3 and the second finned tube 5 are convenient to exchange heat with fluid, so that the heating effect on the fluid is accelerated; the first finned tube 3 and the second finned tube 5 are both made of aluminum through machining, and are good in heat conductivity and corrosion resistant. In an embodiment, the first heat-generating layer 4 is a heat-generating film, and the thickness of the heat-generating film is 0.1 mm; one end of the first heat-generating layer 4 is provided with a power supply lead wire to connect a power supply connecting wire to realize electrification, and the connecting wire can be led out from a connecting wire outlet 104; insulating layers are arranged on the upper end face and the lower end face of the first heat-generating layer 4, so that the first heat-generating layer 4 is prevented from conducting electricity with the first finned tube 3 and the second finned tube 5; in the embodiment, the insulating layer is made of silica gel, and has the characteristics of good temperature resistance and corrosion resistance. In use, the first heat-generating layer 4 transfers heat to the first finned tube 3 and the second finned tube 5 to heat the fluid flowing through the first return runner 902 and the second layer runner 903.
When the fluid heating device heats the flowing fluid, almost all heat is transmitted to the fluid through the finned tubes, the temperature of the fluid in contact with the shell 1 is low, and heat exchange is hardly carried out with the environment outside the shell 1, so that heat radiation does not exist, and a user cannot be scalded; the utility model discloses realize the heating methods of outer cold interior heat, energy saving and safety.
Example 2
Referring to fig. 3, in an embodiment, the fluid heating apparatus includes a housing 1, the housing 1 is respectively provided with a fluid inlet 103 and a fluid outlet 105, a first layer of flow channels 901 communicating with the fluid inlet 103 and a second layer of flow channels 903 communicating with the fluid outlet 105 are provided in the housing 1, and the second layer of flow channels 903 are sleeved in the first layer of flow channels 901; a reverse runner is arranged between the first-layer runner 901 and the second-layer runner 903, the first-layer runner 901 and the second-layer runner 903 are communicated through the reverse runner, and a heating assembly is arranged between the second-layer runner 903 and the reverse runner.
In an embodiment, the housing 1 includes an upper housing section 101 and a lower housing section 102, the upper housing section 101 and the lower housing section are connected by snap fit to facilitate installation of the fluid heating apparatus, and the remaining housing sections 102 of the upper housing section 101 are sealed by silica gel after being snap-connected; the shell 1 is made of a material with poor thermal conductivity and corrosion resistance; in this embodiment, the housing 1 is made of PP material, is not easy to conduct heat, and is corrosion-resistant and insulating, and is easy to form the appearance of the product and beautify the surface. In an embodiment, the fluid inlet 103 and the fluid outlet 105 are provided at the same end of the housing 1; a connecting wire outlet 104 is formed in one end of the shell 1, so that a connecting wire can be conveniently connected into the heating assembly in the shell 1; a cavity for accommodating the temperature control device is arranged in the position, close to the fluid outlet 105, of the housing 1, and a probe hole 106 is arranged on one side, close to the fluid outlet 105, of the cavity, so that a probe of the temperature control device can detect the temperature of the fluid at the fluid outlet 105 conveniently.
In the embodiment, a first backflow pipe 2 and a second backflow pipe 6 are arranged in the shell 1, the first backflow pipe 2 is sleeved outside the heating assembly, and the shell 1 is used for positioning and fixing; the second backflow pipe 6 is sleeved outside the first backflow pipe 2 and is positioned and fixed by a groove in the shell 1. A first backflow channel 902 is formed between the first backflow pipe 2 and the heating assembly, and a second backflow channel 904 is formed between the second backflow pipe 6 and the first backflow pipe 2; a first layer flow passage 901 is formed between the second backflow pipe 6 and the shell 1; the first layer flow channel 901 is communicated with a second backflow channel 904, the second backflow channel 904 is communicated with a first backflow channel 902, and the first backflow channel 902 is communicated with a second flow channel layer 903; the first counter flow pipe 2 and the second counter flow pipe 6 are made of aluminum materials, and have the characteristics of good heat conductivity and corrosion resistance. When in use, fluid enters the second backflow channel 904 after passing through the first layer flow channel 901, and the flow direction of the fluid in the second backflow channel 904 is opposite to the flow direction of the fluid in the first layer flow channel 901; the flow direction is reversed after the fluid enters the first back-flow channel 902 from the second back-flow channel 904.
In an embodiment, the heating assembly comprises a first finned tube 3, a second finned tube 5 and a first heat-generating layer 4, the second finned tube 5 is sleeved in the first finned tube 3, the first heat-generating layer 4 is arranged between the first finned tube 3 and the second finned tube 5, and the side wall of the first heat-generating layer 4 is attached to the inner wall of the first finned tube 3 and the outer wall of the second finned tube 5 respectively. In the embodiment, the heating component is sleeved in the first backflow pipe 2, and is positioned and fixed by a groove on the shell 1; a first return runner 902 is formed between the first finned tube 3 and the first return tube 2, and a second layer of runners 903 is formed in the second finned tube 5; the fins of the first finned tube 3 extend towards the direction close to the first reflux tube 2, and the fins of the second finned tube 5 extend towards the direction far away from the first heat-generating layer 4; the fins of the first finned tube 3 and the second finned tube 5 are convenient to exchange heat with fluid, so that the heating effect on the fluid is accelerated; the first finned tube 3 and the second finned tube 5 are both made of copper through processing, and are good in heat conductivity and corrosion resistant. In an embodiment, the first heat-generating layer 4 is formed by printing heat-generating slurry, and the thickness of the first heat-generating layer 4 is 1 mm; one end of the first heat-generating layer 4 is provided with a power supply lead wire to connect a power supply connecting wire to realize electrification, and the connecting wire can be led out from a connecting wire outlet 104; insulating layers are arranged on the upper end face and the lower end face of the first heat-generating layer 4, so that the first heat-generating layer 4 is prevented from conducting electricity with the first finned tube 3 and the second finned tube 5; in the embodiment, the insulating layer is made of silica gel, and has the characteristics of good temperature resistance and corrosion resistance. In use, the first heat-generating layer 4 transfers heat to the first finned tube 3 and the second finned tube 5 to heat the fluid flowing through the first return runner 902 and the second layer runner 903.
Example 3
Referring to fig. 4, in an embodiment, the fluid heating apparatus includes a housing 1, the housing 1 is respectively provided with a fluid inlet 103 and a fluid outlet 105, a first layer of flow channels 901 communicating with the fluid inlet 103 and a second layer of flow channels 903 communicating with the fluid outlet 105 are provided in the housing 1, and the second layer of flow channels 903 are sleeved in the first layer of flow channels 901; a reverse runner is arranged between the first-layer runner 901 and the second-layer runner 903, the first-layer runner 901 and the second-layer runner 903 are communicated through the reverse runner, and a heating assembly is arranged between the second-layer runner 903 and the reverse runner.
In the embodiment, the housing 1 is of an integral structure; the shell 1 is made of a material with poor thermal conductivity and corrosion resistance; in this embodiment, the housing 1 is made of PVC material, is not easy to conduct heat, and is corrosion-resistant, insulating, and easy to form the product appearance and beautify the surface. In an embodiment, the fluid inlet 103 and the fluid outlet 105 are provided at the same end of the housing 1; a connecting wire outlet 104 is formed in one end of the shell 1, so that a connecting wire can be conveniently connected into the heating assembly in the shell 1; a cavity for accommodating the temperature control device is arranged in the position, close to the fluid outlet 105, of the housing 1, and a probe hole 106 is arranged on one side, close to the fluid outlet 105, of the cavity, so that a probe of the temperature control device can detect the temperature of the fluid at the fluid outlet 105 conveniently.
In the embodiment, a first backflow pipe 2 and a second backflow pipe 6 are arranged in the shell 1, the first backflow pipe 2 is sleeved outside the heating assembly, and the shell 1 is used for positioning and fixing; the second backflow pipe 6 is sleeved outside the first backflow pipe 2 and is positioned and fixed by a groove in the shell 1. In the embodiment, a second heating layer 7 and a third finned tube 8 are sequentially sleeved on the outer side of the first reflux tube 2 from inside to outside, and the side wall of the second heating layer 7 is respectively attached to the outer wall of the first reflux tube 2 and the inner wall of the third finned tube 8; the fins of the third finned tube 8 extend towards the direction close to the second counter flow tube 6; a first return channel 902 is formed between the first return pipe 2 and the heating assembly, and a third return channel 905 is formed between the second return pipe 6 and the third finned pipe 8; a first layer flow passage 901 is formed between the second backflow pipe 6 and the shell 1; the first layer flow channel 901 is communicated with the second backflow channel 904, the second backflow channel 904 is communicated with the first backflow channel 902, and the first backflow channel 902 is communicated with the second flow channel layer 903. When the device is used, fluid enters the third counter flow channel 905 after passing through the first layer flow channel 901, and the flowing direction of the fluid in the third counter flow channel 905 is opposite to that in the first layer flow channel 901; after the fluid enters the first return channel 902 from the third return channel 905, the flow direction is reversed. In the embodiment, the first reflux pipe 2, the second reflux pipe 6 and the third finned tube 8 are made of aluminum materials, and have the characteristics of good heat conductivity and corrosion resistance; the second heating layer 7 is formed by printing heating slurry, and the thickness of the second heating layer is 0.5 mm; one end of the second heating layer 7 is provided with a power supply lead to be connected with a power supply connecting wire to realize electrification, and the connecting wire can be led out from a connecting wire outlet 104; insulating layers are coated on the upper end surface and the lower end surface of the second heating layer 7 to prevent the second heating layer 7 from conducting electricity with the first reflux pipe 2 and the third finned pipe 8; the insulating layer is silica gel.
In an embodiment, the heating assembly comprises a first finned tube 3, a second finned tube 5 and a first heat-generating layer 4, the second finned tube 5 is sleeved in the first finned tube 3, the first heat-generating layer 4 is arranged between the first finned tube 3 and the second finned tube 5, and the side wall of the first heat-generating layer 4 is attached to the inner wall of the first finned tube 3 and the outer wall of the second finned tube 5 respectively. In the embodiment, the heating component is sleeved in the first backflow pipe 2, and is positioned and fixed by a groove on the shell 1; a first return runner 902 is formed between the first finned tube 3 and the first return tube 2, and a second layer of runners 903 is formed in the second finned tube 5; the fins of the first finned tube 3 extend towards the direction close to the first reflux tube 2, and the fins of the second finned tube 5 extend towards the direction far away from the first heat-generating layer 4; the fins of the first finned tube 3 and the second finned tube 5 are convenient to exchange heat with fluid, so that the heating effect on the fluid is accelerated; the first finned tube 3 and the second finned tube 5 are both made of copper through processing, and are good in heat conductivity and corrosion resistant. In an embodiment, the first heat-generating layer 4 is formed by printing heat-generating slurry, and the thickness of the first heat-generating layer 4 is 0.6 mm; one end of the first heat-generating layer 4 is provided with a power supply lead wire to connect a power supply connecting wire to realize electrification, and the connecting wire can be led out from a connecting wire outlet 104; insulating layers are arranged on the upper end face and the lower end face of the first heat-generating layer 4, so that the first heat-generating layer 4 is prevented from conducting electricity with the first finned tube 3 and the second finned tube 5; in the embodiment, the insulating layer is made of silica gel, and has the characteristics of good temperature resistance and corrosion resistance.
In use, the first and second heat generating layers 4, 7 generate heat. And transfers heat to the attached fins and the return tube to heat the fluid flowing therethrough.
In other embodiments, the number of the counter flow channels can be set to three, four or other numbers, so that unequal numbers of counter flow tubes and finned tubes are added in the shell 1; the reflux pipe and the finned tube can also be made of other materials with good heat conductivity and corrosion resistance; the shell 1 can also be made of PC, PS and other plastic materials which are difficult to conduct heat, corrosion-resistant and good in insulating property. Meanwhile, heating layers with different numbers can be added to improve the heating efficiency; the thickness of the heating layer can be set to be other thicknesses between 0.1 and 1.0 mm; the heating layer can also be a heating structure such as a heating sheet.
Example 4
in an embodiment, there is also provided an electric water heater comprising a water supply pump and a fluid heating device as described in any one of the above, wherein an output end of the water supply pump is connected to the fluid inlet 103 of the fluid heating device, and the water supply pump continuously feeds liquid into the fluid heating device, and the liquid is heated by the fluid heating device and then is output from the fluid outlet 105.
The above-mentioned embodiments are only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A fluid heating device comprises a shell (1), wherein a fluid inlet (103) and a fluid outlet (105) are respectively arranged on the shell (1), and the fluid heating device is characterized in that a first layer of flow channel (901) communicated with the fluid inlet (103) and a second layer of flow channel (903) communicated with the fluid outlet (105) are arranged in the shell (1), and the second layer of flow channel (903) is sleeved in the first layer of flow channel (901); at least one reverse runner is arranged between the first layer runner (901) and the second layer runner (903), the first layer runner (901) and the second layer runner (903) are communicated through a reverse runner, and a heating assembly is arranged between the second layer runner (903) and the reverse runner.
2. The fluid heating device according to claim 1, wherein a first backflow pipe (2) is arranged in the housing (1), the first backflow pipe (2) is sleeved outside the heating assembly, and a first backflow channel (902) is formed between the first backflow pipe (2) and the heating assembly.
3. A fluid heating device according to claim 2, characterized in that a second counter flow pipe (6) is sleeved outside the first counter flow pipe (2), and a second counter flow channel (904) is formed between the first counter flow pipe (2) and the second counter flow pipe (6).
4. The fluid heating device according to claim 3, characterized in that the outside of the first reflux pipe (2) is sleeved with a second heating layer (7) and a third finned tube (8) from inside to outside in sequence, and the side wall of the second heating layer (7) is respectively attached to the outer wall of the first reflux pipe (2) and the inner wall of the third finned tube (8).
5. A fluid heating device according to claim 4, characterised in that a third return channel (905) is formed between the third finned tube (8) and the second return tube (6).
6. The fluid heating device according to claim 1, wherein the heating assembly comprises a first finned tube (3), a second finned tube (5) and a first heat-generating layer (4), the second finned tube (5) is sleeved in the first finned tube (3), the first heat-generating layer (4) is arranged between the first finned tube (3) and the second finned tube (5), and the side wall of the first heat-generating layer (4) is attached to the inner wall of the first finned tube (3) and the outer wall of the second finned tube (5) respectively.
7. Fluid heating device according to claim 6, characterised in that the first finned tube (3) and the first return tube (2) form between them a first return channel (902) and the second finned tube (5) form inside it a second layer of channels (903).
8. Fluid heating device according to claim 1, characterized in that the housing (1) comprises an upper housing section (101) and a lower housing section (102), the upper housing section (101) and the lower housing section (102) being in threaded connection.
9. Fluid heating device according to claim 1 or 8, characterized in that the housing (1) is provided with a cavity for mounting a temperature control device near the fluid outlet (105), and that the cavity is provided with a probe hole (106) near the fluid outlet (105).
10. An electric water heater comprising a water supply pump, and further comprising the fluid heating apparatus of any one of claims 1 to 9, wherein an output of the water supply pump is in communication with a fluid inlet of the fluid heating apparatus.
CN201920219901.8U 2019-02-21 2019-02-21 Fluid heating device and electric water heater Active CN209801756U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920219901.8U CN209801756U (en) 2019-02-21 2019-02-21 Fluid heating device and electric water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920219901.8U CN209801756U (en) 2019-02-21 2019-02-21 Fluid heating device and electric water heater

Publications (1)

Publication Number Publication Date
CN209801756U true CN209801756U (en) 2019-12-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920219901.8U Active CN209801756U (en) 2019-02-21 2019-02-21 Fluid heating device and electric water heater

Country Status (1)

Country Link
CN (1) CN209801756U (en)

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