CN219177965U - Double-liner electric water heater - Google Patents

Abstract

The utility model discloses a double-liner electric water heater, which comprises: the first inner container is internally provided with a first heating cavity, and a water outlet pipe is arranged on the first inner container; the second inner container is internally provided with a second heating cavity, and a water inlet pipe is arranged on the second inner container; the first electric heating assembly comprises a plurality of first electric heating pipes and a plurality of flow separation plates, wherein the flow separation plates are arranged side by side, and the first electric heating pipes penetrate through the flow separation plates; a second electrical heating assembly comprising a second electrical heating tube; the first inner container is communicated with the second inner container, the first electric heating assembly is arranged in the first heating cavity, the first electric heating pipes are arranged along the length direction of the first inner container, the second electric heating pipes are arranged in the second heating cavity, and the second electric heating pipes are arranged along the length direction of the second inner container. The heating speed is improved to meet the requirement of instant heating type water outlet, and the use experience of users is improved.

Description

Double-liner electric water heater

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a double-liner electric water heater.

Background

At present, the water heater is a household appliance commonly used in daily life of people, the electric water heater can be divided into a water storage type electric water heater and an instant electric water heater according to the heating power, and the water storage type electric water heater is provided with a water tank, so that the water storage type electric water heater has the characteristics of large water yield, stable water temperature and the like, and is purchased and used by more families.

In the prior art, in order to increase the water storage capacity of an electric water heater, a double-liner structure is generally adopted, and two liners are arranged in parallel in a shell of the electric water heater. In general, in order to improve heating efficiency, two inner containers are generally configured with an electric heating tube, such as a hot water supply device disclosed in chinese patent publication No. CN 215113222U, and the inner containers disposed up and down are respectively provided with the electric heating tube. But from each liner, the heating mode is a traditional submerged heating pipe, namely, each liner is a water storage type electric water heater, so that the requirement of a user on instant heating type water outlet cannot be met, and the use experience of the user is low.

In view of this, how to design an electric water heater with an increased heating rate to meet the instant heating water outlet is a technical problem to be solved by the present utility model.

Disclosure of Invention

The utility model provides a double-liner electric water heater, which can improve the heating speed to meet the requirement of instant heating water outlet and improve the use experience of users.

In order to achieve the technical purpose, the utility model is realized by adopting the following technical scheme:

in one aspect, the present utility model provides a dual-liner electric water heater comprising:

the first inner container is internally provided with a first heating cavity, and a water outlet pipe is arranged on the first inner container;

the second inner container is internally provided with a second heating cavity, and a water inlet pipe is arranged on the second inner container;

the first electric heating assembly comprises a plurality of first electric heating pipes and a plurality of flow separation plates, wherein the flow separation plates are arranged side by side, and the first electric heating pipes penetrate through the flow separation plates;

a second electrical heating assembly comprising a second electrical heating tube;

the first inner container is communicated with the second inner container, the first electric heating assembly is arranged in the first heating cavity, the first electric heating pipes are arranged along the length direction of the first inner container, the second electric heating pipes are arranged in the second heating cavity, and the second electric heating pipes are arranged along the length direction of the second inner container.

In some embodiments of the present application, the first electric heating assembly further comprises a first mounting plate, a plurality of the first electric heating tube arrays being arranged and disposed on the first mounting plate; the end part of the first liner is provided with a first liner opening, and the first mounting plate is arranged on the first liner opening.

In some embodiments of the present application, the plurality of flow separation plates are divided into a first partition plate and a second partition plate, wherein an upper portion of the first partition plate is abutted against the top of the first liner, and a lower portion of the second partition plate is abutted against the bottom of the first liner;

wherein the first and second separators are alternately arranged at intervals.

In some embodiments of the present application, a first communication pipe is disposed between the first liner and the second liner, and the first communication pipe is far away from the water outlet pipe.

In some embodiments of the present application, a second communicating pipe is further disposed between the first liner and the second liner, and the second communicating pipe is far away from the first communicating pipe.

In some embodiments of the present application, the water outlet pipe is disposed at an end of the first liner and near a top region of the first liner; the water inlet pipe is arranged at the bottom of the first inner container and is arranged at the end part of the first inner container far away from the water outlet pipe, and the first communication pipe is close to the water inlet pipe.

In some embodiments of the present application, the first connection pipe and the second connection pipe are both split-type pipe groups; the split type pipe group comprises a first pipe body and a second pipe body, wherein the first pipe body is arranged on the first inner container, the second pipe body is arranged on the second inner container, and the first pipe body and the second pipe body are connected together.

In some embodiments of the present application, the first pipe body and the second pipe body are respectively provided with a flange, and the two flanges are connected together in a sealing manner.

In some embodiments of the present application, a sealing ring is disposed between two of the flanges.

In some embodiments of the present application, the second electrical heating assembly further comprises a second mounting plate; the second electric heating pipe comprises a fixing part, a bending part and an extension part which are sequentially connected, the fixing part is arranged on the second mounting plate, the bending part extends towards the bottom direction of the second inner container, and the extension part extends along the axial direction of the inner container and is close to the inner wall of the inner container; the end part of the second liner is provided with a second liner opening, and the second mounting plate is arranged on the second liner opening.

According to the double-liner electric water heater provided by the utility model, the first electric heating component is arranged in the first liner, so that the heating power can be effectively increased, and the plurality of flow isolation plates are arranged to isolate water flowing in the first liner, so that water in the first liner can sequentially flow through the flow isolation plates to obtain sufficient heating, further, the water outlet pipe can meet the requirement of instant heating type output hot water, meanwhile, the second electric heating pipe arranged in the second liner can meet the heating requirement of a conventional water storage type water heater, the heating speed is increased to meet the instant heating type output water, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of a partial structure of an embodiment of a dual-liner electric water heater according to the present utility model;

FIG. 2 is a schematic diagram of a partial structure of an embodiment of the dual-liner electric water heater of the present utility model;

FIG. 3 is a cross-sectional view of the dual-liner electric water heater of FIG. 1;

FIG. 4 is a schematic view of the first electrical heating assembly of FIG. 1;

fig. 5 is a schematic structural view of the second electric heating assembly of fig. 1.

Reference numerals illustrate:

a first liner 1;

a water outlet pipe 11;

a second liner 2;

a water inlet pipe 21;

a first electric heating assembly 3;

a first electric heating pipe 31, a flow blocking plate 32, a first mounting plate 33;

a first separator 321, a second separator 322;

a second electric heating assembly 4;

a second electric heating tube 41, a second mounting plate 42;

a fixing portion 411, a bending portion 412, and an extending portion 413;

a first communication pipe 5;

a first pipe 51, a second pipe 52;

and a second communicating tube 6.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The electric water heater adopts electric energy as a main energy material, and the high-temperature heat generated after the electric energy is electrified directly heats water stored in the electric water heater so as to achieve the purpose of preparing hot water.

The electric water heater generally comprises a water tank, an electric heating component, an electric control board and the like, wherein a water storage cavity is formed in the water tank to store water to be heated, the electric heating component is inserted into the water storage cavity formed by the water tank, and the electric control board is used for controlling the electric heating component to be powered on and powered off so as to heat the water in the water tank to a set temperature.

For a water tank of an electric water heater, the water tank generally comprises a shell and an inner container, and an insulation layer is formed between the shell and the inner container. Wherein, the shell is generally made of plastic materials so as to meet the design requirements of beautiful and diversified shapes; the inner container can be a metal container body or a plastic container body according to the requirement.

In addition, the heat preservation that forms between shell and the inner bag, the heat preservation material that commonly uses has: asbestos, sponge, foam, polyurethane foam, etc., and in order to obtain a good heat-insulating effect, in the conventional technology, a heat-insulating layer is usually formed by adopting a foaming mode.

For the liner adopting the metal liner body, the inside of the liner is easy to corrode due to the influence of water quality, and therefore, the water tank is also provided with a magnesium rod which is inserted into a water storage cavity in the water tank.

Since magnesium is the lowest potential metal in the electrochemical sequence, it is physiologically non-toxic. Therefore, the magnesium rod protective liner is very ideal to be used for manufacturing the magnesium rod protective liner. The size of the magnesium rod is directly related to the time of protecting the liner and the protecting effect, and the larger the magnesium rod is, the better the protecting effect is and the longer the protecting time is.

The water tank is also provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is used for conveying cold water into a water storage cavity formed in the water tank, and hot water in the water storage cavity is output from the water outlet pipe.

For the electric heating component, electric heating modes such as electric heating wires, magnetic energy or silicon tube heating can be adopted to heat water stored in the water storage cavity.

For the electric control board, the electric control board is used for receiving detection signals sent by related sensors (such as a water temperature sensor and a flow sensor) and controlling the electric heating component to be powered on and powered off.

When the electric water heater works, the electric heating component is controlled by the electric control board to be electrified and heated, and when the water temperature of the water in the water tank reaches a set value, the electric heating component is controlled by the electric control board to be powered off.

An embodiment, as shown in fig. 1 to 5, of the present embodiment of a dual-liner electric water heater, includes:

the first inner container 1, a first heating cavity is formed in the first inner container 1, and a water outlet pipe 11 is arranged on the first inner container 1;

the second inner container 2 is provided with a second heating cavity, and the second inner container 2 is provided with a water inlet pipe 21;

the first electric heating assembly 3, the first electric heating assembly 3 includes a plurality of first electric heating pipes 31 and a plurality of flow-blocking plates 32, the plurality of flow-blocking plates 32 are arranged side by side, and the plurality of first electric heating pipes 31 penetrate through the flow-blocking plates 32;

a second electric heating assembly 4, the second electric heating assembly 4 comprising a second electric heating tube 41;

wherein, first inner bag 1 and second inner bag 2 intercommunication each other, first electrical heating subassembly 3 sets up in first heating cavity, first electrical heating pipe 31 is arranged along the length direction of first inner bag 1, second electrical heating pipe 41 sets up in the second heating cavity, second electrical heating pipe 41 is arranged along the length direction of second inner bag 2.

Specifically, the first inner liner 1 is provided therein with a first electric heating unit 3 capable of outputting hot water in an instant heating manner. The first electric heating assembly 3 adopts a plurality of first electric heating pipes 31 to heat to increase heating area and improve heating efficiency on the one hand, and on the other hand, the flow path of rivers in the first inner bag 1 can be prolonged to the baffle plate 32 that sets up on the first electric heating pipe 31 for rivers bypass each baffle plate 32 in proper order, and then have prolonged the contact heating time of rivers and first electric heating pipe 31, in order to satisfy the requirement of instant heating type output hot water.

The second electric heating unit 4 provided in the second liner 2 is provided with a second electric heating pipe 41, and the second electric heating pipe 41 is configured to heat the entire water in the second liner 2 and store the hot water by using a heating system of a conventional water storage type water heater.

In actual use, when a large amount of water is needed, the second electric heating pipe 41 in the second liner 2 is electrified and started, so that the double-liner electric water heater operates in a water storage type water heater, the user needs to open the second electric heating pipe 41 in advance, the second electric heating pipe 41 heats the water in the second liner 2, and under the circulation effect of hot and cold water, the water in the first liner 1 and the water in the second liner 2 circularly flow, and finally the water in the first liner 1 and the water in the second liner 2 are heated to the set temperature.

When the user needs instant heating, the first electric heating pipe 31 in the first inner container 1 is electrified and started to rapidly heat the water flowing in the second inner container 2, so that instant heating type hot water output is realized.

According to the double-liner electric water heater provided by the utility model, the first electric heating component is arranged in the first liner, so that the heating power can be effectively increased, the plurality of flow isolation plates are arranged to isolate water flowing in the first liner 1, so that water in the first liner can sequentially flow through the flow isolation plates to obtain sufficient heating, further, the water outlet pipe can meet the requirement of instant heating type output hot water, meanwhile, the second electric heating pipe arranged in the second liner can meet the heating requirement of a conventional water storage type water heater, the heating speed is increased to meet the instant heating type water outlet, and the user experience is improved.

In some embodiments of the present application, the first electric heating assembly 3 further comprises a first mounting plate 33, and the plurality of first electric heating tubes 31 are arranged in an array and disposed on the first mounting plate 33; the end of the first liner 1 is provided with a first liner opening (not labeled) on which the first mounting plate 33 is disposed.

Specifically, for the first electric heating element 3, for convenience of mounting with the first liner 1, the first mounting plate 33 is used to mount and fix the first electric heating tube 31. In the assembly process, the first electric heating pipe 31 and the flow isolation plate 32 extend into the first liner 1 through the first liner opening, and then the first mounting plate 33 is fixedly mounted on the first liner opening in a sealing manner, so that the first electric heating assembly 3 is conveniently assembled on the first liner 1.

Likewise, in another embodiment, the second electrical heating assembly 4 further comprises a second mounting plate 42; the second electric heating tube 41 comprises a fixing part 411, a bending part 412 and an extension part 413 which are sequentially connected, the fixing part 411 is arranged on the second mounting plate 42, the bending part 412 extends towards the bottom direction of the second inner container 2, and the extension part 413 extends along the axial direction of the inner container and is close to the inner wall of the inner container; the end of the second liner 2 is provided with a second liner opening (not labeled) on which the second mounting plate 42 is disposed.

Specifically, the second electric heating tube 41 is fixed to the second mounting plate 42 by the fixing portion 411, and when assembled with the second inner container 2, the second electric heating tube 41 is inserted into the second inner container 2 through the second container opening, and then the second mounting plate 42 is fixed to the second container opening in a sealing manner, so that the second electric heating assembly 4 is assembled to the second inner container 2.

In order to optimize the heating effect of the second electric heating tube 41, the structure of the second electric heating tube 41 is generally divided into three parts, wherein the first part is a fixing part fixedly connected with the second mounting plate 42, the second part is a bending part extending toward the bottom of the second liner 2, and the third part is an extension part extending along the axial direction of the second liner 2 and adjacent to the bottom inner wall of the second liner 2.

In this way, the length of the second electric heating pipe 41 is made long enough to improve the heating efficiency, in addition, the second electric heating pipe 41 is integrally arranged near the bottom area of the second liner 2, and the principle of rising of the cold water and the hot water is utilized to better fully heat the water in the second liner 2.

In some embodiments, in order to ensure smooth flow of water and meet the requirement of prolonging the flow path of water, for the plurality of flow separation plates 32 in the first electric heating assembly 3, the plurality of flow separation plates 32 are divided into a first separation plate 321 and a second separation plate 322, wherein the upper part of the first separation plate 321 is abutted against the top of the first inner container 1, and the lower part of the second separation plate 322 is abutted against the bottom of the first inner container 1;

wherein the first and second spacers 321 and 322 are alternately arranged at intervals.

Specifically, the first partition 321 is abutted against the top of the first liner 1 to block the water flow flowing through the first partition 321 from flowing from the top of the first liner 1, the water flow will flow to the bottom of the first liner 1 under the action of the first partition 321, and the second partition 322 is abutted against the bottom of the first liner 1 to block the water flow flowing through the first partition 321 from flowing from the bottom of the first liner 1, and the water flow will flow to the top of the first liner 1 under the action of the second partition 322.

The first partition plates 321 and the second partition plates 322 are alternately arranged at intervals, so that water flowing in the first liner 1 can flow around the first partition plates 321 and the second partition plates 322 in sequence, and the flow path of the water flow is further prolonged to the maximum extent, so that the requirement that the water flow is fully heated by the first electric heating pipe 31 in the instant heating type hot water outputting process is met.

In some embodiments, a first communication pipe 5 is disposed between the first liner 1 and the second liner 2, and the first communication pipe 5 is away from the water outlet pipe 11.

Specifically, in order to allow water in the second liner 2 to enter the first liner 1, a first communication pipe 5 is provided between the first liner 1 and the second liner 2. The first communication pipe 5 can meet the condition that water in the second inner container 2 enters the second inner container 2 through the first communication pipe 5 under the action of water inlet pressure of the water inlet pipe 21, and the water in the second inner container 2 is output from the water outlet pipe 11.

Wherein the first communication pipe 5 is arranged at a position close to the end of the inlet pipe 21. In this way, the water entering the first liner 1 from the first communication pipe 5 can be guided away from the water outlet pipe 11 and sequentially through the plurality of second partitions 322, and the water flow is effectively heated and then output from the water outlet pipe 11.

In some embodiments, in order to satisfy the water circulation flow between the two inner containers in the water storage type heating mode for uniform heating, a second communication pipe 6 is further disposed between the first inner container 1 and the second inner container 2, and the second communication pipe 6 is far from the first communication pipe 5.

Specifically, the first liner 1 and the second liner 2 are connected together through a first communication pipe 5 and a second communication pipe 6, and the second liner 2 is arranged below the first liner 1. In the process of heating by the first electric heating pipe 31, hot water at the top in the second liner 2 enters the first liner 1 through one of the communicating pipes, and cold water at the bottom in the first liner 1 enters the second liner 2 through the other communicating pipe.

Thus, the circulating flow of water flow is realized between the first inner container 1 and the second inner container 2 through the two communicating pipes, so that the water in the first inner container 1 and the second inner container 2 is comprehensively and effectively heated uniformly through the second electric heating pipe 41.

In another embodiment of the present application, the water outlet pipe 11 is disposed at one end of the first liner 1 and is close to the top area of the first liner 1; the water inlet pipe 21 is arranged at the bottom of the first inner container 1 and at the end part of the first inner container 1 far away from the water outlet pipe 11, and the first communication pipe 5 is close to the water inlet pipe 21.

Specifically, the water outlet pipe 11 and the water inlet pipe 21 are disposed away from each other, and the first communication pipe 5 is disposed above the water inlet pipe 21, so that water in the second liner 2 can rapidly enter the first liner 1 through the first communication pipe 5.

In some embodiments, the first connecting pipe 5 and the second connecting pipe are all split pipe groups; taking the first communication pipe 5 as an example, the split pipe group comprises a first pipe body 51 and a second pipe body 52, the first pipe body is arranged on the first liner 1, the second pipe body is arranged on the second liner 2, and the first pipe body and the second pipe body are connected together.

Specifically, the first pipe body may be welded to the bottom of the first liner 1, and the second pipe body may be welded to the top of the second liner 2, where the ends of the first pipe body 51 and the second pipe body 52 are in sealing connection with each other between the first liner 1 and the second liner 2.

In one embodiment, the first pipe body and the second pipe body are respectively provided with a flange 53, and the two flanges are connected together in a sealing manner.

Specifically, the first pipe body and the second pipe body may be connected to each other by a flange 53, and a sealing ring (not shown) is disposed between the two flanges in order to meet the requirement of sealing connection.

In the above embodiments, unless otherwise specified, it is assumed that an electric heating member is provided in each liner.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A double-liner electric water heater, comprising:

the first inner container is internally provided with a first heating cavity, and a water outlet pipe is arranged on the first inner container;

the second inner container is internally provided with a second heating cavity, and a water inlet pipe is arranged on the second inner container;

the first electric heating assembly comprises a plurality of first electric heating pipes and a plurality of flow separation plates, wherein the flow separation plates are arranged side by side, and the first electric heating pipes penetrate through the flow separation plates;

a second electrical heating assembly comprising a second electrical heating tube;

the first inner container is communicated with the second inner container, the first electric heating assembly is arranged in the first heating cavity, the first electric heating pipes are arranged along the length direction of the first inner container, the second electric heating pipes are arranged in the second heating cavity, and the second electric heating pipes are arranged along the length direction of the second inner container.

2. The dual-bladder electric water heater of claim 1, wherein the first electric heating assembly further comprises a first mounting plate, a plurality of the first electric heating tube arrays being arranged and disposed on the first mounting plate; the end part of the first liner is provided with a first liner opening, and the first mounting plate is arranged on the first liner opening.

3. The double-liner electric water heater according to claim 1, wherein the plurality of flow separation plates are divided into a first partition plate and a second partition plate, the upper part of the first partition plate is abutted against the top of the first liner, and the lower part of the second partition plate is abutted against the bottom of the first liner;

wherein the first and second separators are alternately arranged at intervals.

4. The dual-liner electric water heater as claimed in claim 3, wherein a first communication pipe is provided between the first liner and the second liner, the first communication pipe being remote from the water outlet pipe.

5. The dual-liner electric water heater as claimed in claim 4, wherein a second communication pipe is further provided between the first liner and the second liner, the second communication pipe being remote from the first communication pipe.

6. The dual-liner electric water heater of claim 5, wherein the water outlet pipe is disposed at an end of the first liner and near a top region of the first liner; the water inlet pipe is arranged at the bottom of the first inner container and is arranged at the end part of the first inner container far away from the water outlet pipe, and the first communication pipe is close to the water inlet pipe.

7. The dual-liner electric water heater of claim 5, wherein the first and second communication pipes are split-type pipe groups; the split type pipe group comprises a first pipe body and a second pipe body, wherein the first pipe body is arranged on the first inner container, the second pipe body is arranged on the second inner container, and the first pipe body and the second pipe body are connected together.

8. The double-liner electric water heater of claim 7, wherein the first pipe body and the second pipe body are respectively provided with a flange, and the two flanges are connected together in a sealing manner.

9. The double-liner electric water heater of claim 8, wherein a sealing ring is disposed between the two flanges.

10. The dual-bladder electric water heater of claim 1, wherein the second electric heating assembly further comprises a second mounting plate; the second electric heating pipe comprises a fixing part, a bending part and an extension part which are sequentially connected, the fixing part is arranged on the second mounting plate, the bending part extends towards the bottom direction of the second inner container, and the extension part extends along the axial direction of the inner container and is close to the inner wall of the inner container; the end part of the second liner is provided with a second liner opening, and the second mounting plate is arranged on the second liner opening.

Images