CN216744908U

CN216744908U - Double-liner water heater

Info

Publication number: CN216744908U
Application number: CN202122987963.3U
Authority: CN
Inventors: 戚元叶; 蔺士磊; 蔡想周; 郑涛; 姜雄; 汪秀君; 郭全军
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Qingdao Haier Wisdom Electrical Equipment Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Qingdao Haier Wisdom Electrical Equipment Co ltd; Haier Smart Home Co Ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-06-14
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a double-liner water heater, which comprises a shell; the first inner container is used for storing water to be heated; the second inner container is used for storing water to be heated; the first water inlet pipe extends into the first inner container; the first water outlet pipe extends into the second inner container; the connecting water pipe is connected with the first inner container through a second water outlet pipe and connected with the second inner container through a second water inlet pipe; wherein, a water inlet part is arranged along the pipe wall of the second water inlet pipe; the second water inlet pipe is internally provided with a groove, and the notch of the groove is positioned at the free end of the second water inlet pipe. The utility model provides a second inlet pipe makes into water and can slowly discharge from the lower extreme as far as through compressing upper portion space mode, avoids pressure cold water all to discharge from the inlet tube top basically.

Description

Double-liner water heater

Technical Field

The utility model belongs to the technical field of domestic appliance, especially, relate to a two courage water heaters.

Background

At present, a water heater is a common household appliance in daily life, the electric water heater can be divided into a water storage type electric water heater and an instant heating type 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.

The water inlet pipe of the double-liner water heater in the prior art is mostly sprayed out from the end part of the water inlet pipe, so that the mixing rate of cold water and hot water is high, the output rate of the hot water is reduced, and a large amount of ineffective hot water is generated.

Therefore, the technical problem to be solved by the present invention is how to design a technique for reducing the mixing ratio of cold water and hot water.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-container water heater, which greatly increases the output rate of hot water and ensures the stability of the water outlet temperature.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

in one aspect, the utility model provides a two courage water heater, include:

a housing in which an installation space of the inner container is formed;

the first inner container is used for storing water to be heated;

the second inner container is used for storing water to be heated;

the first water inlet pipe extends into the first inner container;

the first water outlet pipe extends into the second inner container;

the connecting water pipe is connected with the first inner container through a second water outlet pipe and connected with the second inner container through a second water inlet pipe;

wherein, a water inlet part is arranged along the pipe wall of the second water inlet pipe; a groove is formed in the second water inlet pipe, and a notch of the groove is located at the free end of the second water inlet pipe.

Further, the first water inlet pipe comprises a main pipe and a pipe sleeved in the main pipe; the free end of the main pipe is close to the water inlet end of the first inner container and is bent towards the side wall of the first inner container.

Furthermore, a first water hole is formed in the free end of the main pipe and distributed on the pipe wall on one side close to the water inlet end;

the pipe is provided with a second water hole along the pipe wall, and the second water hole is distributed on the pipe wall at one side far away from the water inlet end.

Further, the piping is of an axisymmetric structure, and the inner diameters of both ends of the piping are larger than the inner diameter of the center of the piping.

Furthermore, the free end of the main pipe is provided with a blocking cap for fixing the main pipe and the distribution pipe.

Furthermore, the free end of the first water outlet pipe is far away from the water outlet end of the second inner container and is bent towards the side wall of the second inner container.

Furthermore, the free end of the second water outlet pipe is far away from the water inlet end of the first inner container.

Furthermore, the free end of the second water inlet pipe is close to the water outlet end of the second inner container.

Furthermore, the water inlet part is regularly distributed hole sites.

Further, the inner diameter of the notch of the groove is larger than that of the groove bottom of the groove.

Further, the first inner container and the second inner container are arranged in parallel along the vertical direction; the connecting water pipe comprises a first connecting water pipe and a second connecting water pipe which are fixed on the outer wall of the inner container in parallel.

Furthermore, the fixed positions of the first connecting water pipe and the second connecting water pipe in the first inner container are higher than the fixed positions of the first connecting water pipe and the second connecting water pipe in the second inner container.

Furthermore, the water flow in the first connecting water pipe flows from the second inner container to the first inner container; the water flow direction in the second connecting water pipe is from the first inner container to the second inner container.

Furthermore, the first connecting water pipe and the second connecting water pipe are arranged opposite to the inner container support, namely are respectively arranged on the front side surface or the rear side surface of the first inner container and the second inner container.

The inner container support comprises a connecting plate and supporting pieces symmetrically arranged at two ends of the connecting plate;

the supporting piece is respectively attached to the outer walls of the first inner container and the second inner container;

the supporting pieces are fixedly connected with the shell through fixing pieces.

Further, support piece is including the backup pad that is equipped with the through-hole and the first kink and the second kink that are located this backup pad both sides.

Further, the first bending part and the second bending part are symmetrically arranged and are in contact connection with the outer wall of the inner container; the second bending part is fixedly connected with the connecting plate.

Furthermore, the bottom of the connecting plate is provided with a pressing rib for reinforcing the structural strength of the connecting plate.

Furthermore, an insulating pad is arranged between the supporting piece and the shell.

Furthermore, the through hole is internally threaded, the fixing piece is a bolt, and the bolt is matched with the through hole to fix the inner container and the shell.

Furthermore, the liner support is of an integrally formed structure.

Further, a first flange is further arranged on the end socket of the first inner container, a first electric heating part is arranged on the first flange, and the first electric heating part extends into the first inner container; still be provided with the second flange on the seal of second inner bag, be provided with the second electric heating part on the second flange, the second electric heating part stretches into in the second inner bag.

The double-liner water heater provided by the utility model can meet the wall hanging requirement of the water heater product and also can meet the fixing requirement of two liners in the double-liner machine by arranging the liner support between the first liner and the second liner; the liner support has uniform width, generates few waste materials, improves the utilization rate of raw materials and reduces the cost.

Additionally, the utility model provides a first connecting water pipe and second connecting water pipe realize ascending water of trading step by step, can make the heat of first inner bag and second inner bag quick relative equilibrium fast.

And simultaneously, the utility model provides a second inlet tube makes the intaking slowly discharge from the lower extreme as far as through compressing upper portion space mode, avoids pressure cold water to discharge from the inlet tube top basically, makes hot and cold water mix in the courage, leads to producing a large amount of invalid hot water.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of a first embodiment of the double-liner water tank of the present invention;

FIG. 2 is a first schematic structural view of a double-tank embodiment of the present invention without the side wall of the inner tank;

FIG. 3 is a schematic structural view of a double-tank embodiment of the present invention without the side wall of the inner tank;

FIG. 4 is a schematic structural view of the main tube;

FIG. 5 is a schematic view of the piping structure;

FIG. 6 is a schematic structural view of the second water inlet pipe;

FIG. 7 is a schematic sectional view of the second water inlet pipe;

fig. 8 is a schematic structural view of a fourth embodiment of the dual-tank of the present invention.

FIG. 9 is a first schematic perspective view of the liner holder;

fig. 10 is a schematic perspective view of the liner support;

fig. 11 is a schematic view of the connection between the liner support and the housing;

description of reference numerals:

a first inner container 100;

a first electric heating part 110;

a second inner container 200;

the second electric heating part 210;

a first water inlet pipe 300; a main pipe 311, a pipe 312, and a first water hole 313; second water hole 314

A first water outlet pipe 400;

connecting a water pipe 500; a first connection water pipe 510; a second connecting water pipe 520; a second water outlet pipe 530, a second water inlet pipe 540, a water inlet portion 541, and a groove 542;

a liner support 600;

the support member 610, the support plate 611, the first bent portion 612, the second bent portion 613, the through hole 614, the connection plate 620, and the pressing rib 630;

an insulating pad 700;

a housing 800.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are 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 device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

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

The electric water heater generally includes a water tank, an electric heating component, an electric control board and other components, 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 in the water tank, and the electric control board is used for controlling the electric heating component to be powered on and powered off to operate, so that the water in the water tank is heated to a set temperature.

For a water tank of an electric water heater, the water tank generally comprises an outer shell and an inner container, and an insulating layer is formed between the outer shell and the inner container. Wherein, the shell is generally made of plastic materials 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 requirements.

In addition, the heat preservation layer that forms between shell and the inner bag, commonly used insulation material has: asbestos, sponge, foamed plastic, polyurethane foam, etc., in the conventional technology, in order to obtain a good heat preservation effect, a heat preservation layer is usually formed in a foaming manner.

Wherein, for the inner bag that adopts the metal courage body, because influenced by water quality, the inside of inner bag corrodes easily, for this reason, still dispose the magnesium stick on the water tank, the magnesium stick inserts in the inside water storage cavity of water tank.

Magnesium is the lowest potential metal in the electrochemical series and is physiologically nontoxic. Therefore, the magnesium rod protective liner is very ideal. The size of the magnesium rod is directly related to the length of the time for protecting the inner container and the size of the protection effect, and the larger the magnesium rod is, the better the protection effect is and the longer the protection 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 to 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 part, an electric heating mode such as an electric heating wire, magnetic energy or silicon tube heating can be adopted to heat the water stored in the water storage cavity.

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 control board controls the electric heating part to be electrified and heated, and when the water temperature of water in the water tank reaches a set value, the electric control board controls the electric heating part to be powered off.

In a first embodiment, referring to fig. 1 and 2, the present invention further provides a dual-tank water heater, including:

a case 800 in which an installation space of the inner container is formed;

the water heater comprises a first inner container 100, wherein the first inner container 100 is used for storing water to be heated;

a second inner container 200, wherein the second inner container 200 is used for storing water to be heated;

the first water inlet pipe 300, the first water inlet pipe 300 extends into the first inner container 100;

the first water outlet pipe 400, the first water outlet pipe 400 extends into the second inner container 200;

a connection water pipe 500 installed between the first and second

inner containers

100 and 200;

the first water inlet pipe 300 comprises a main pipe 311 and a pipe 312 sleeved in the main pipe 311; the free end of the main pipe 311 is close to the water inlet end 400 of the first inner container 100 and is bent toward the side wall of the first inner container 100.

Further, referring to fig. 4, the main pipe 311 is L-shaped in overall structure, and a first water hole 313 is formed at a free end thereof, and the first water hole 313 is formed along one side of the pipe wall and is located on the pipe wall at a side close to the water inlet end;

the pipe 312 has a second water hole 314 along the pipe wall, and the second water hole 314 is distributed on the pipe wall at a side far away from the water inlet end.

Specifically, after the pipe 312 is fitted into the main pipe 311, the first water hole 313 and the second water hole 314 are provided to face each other. When the first inner container 100 and the second inner container 200 are vertically arranged along the horizontal direction, the water inlet process of the first water inlet pipe 300 is as follows: the cold water enters the pipe 312 through the main pipe 311, enters the main pipe 311 again through the second water hole 314 on the left side of the pipe 312, and slowly flows into the right space of the first inner container 100 through the first water hole 313 on the right side of the main pipe 311, and the hot water can be slowly pushed into the second inner container 200 as the heating time of the heating pipe progresses. Similarly, when the first inner container 100 and the second inner container 200 are arranged left and right along the vertical direction, the water inlet process of the first water inlet pipe 300 is as follows: the cold water enters the pipe 312 through the main pipe 311, enters the main pipe 311 again through the second water hole 314 at the upper side of the pipe 312, and slowly flows into the lower space of the first inner container 100 through the first water hole 313 at the lower side of the main pipe 311, and the hot water can be slowly pushed into the second inner container 200 as the heating time of the heating pipe is increased.

This first inlet tube 300's setting reduces the rivers impact force through once returning water to according to inner bag structural feature, cold water is easier with the hot water layering, and then promotes two courage water heater performances.

Further, referring to fig. 5, the pipe 312 has an axisymmetric structure, and has an inner diameter at both ends thereof larger than that at the center thereof. That is, both ends of the pipe 312 are formed in a trumpet shape, so that cold water is prevented from directly entering the main pipe when entering the pipe 312 from the main pipe 311 for the first time, and the water flow direction of the cold water is prevented from being affected.

Further, a cap (not shown) is provided at a free end of the main pipe 311 to fix the main pipe 311 and the pipe 312 so as to prevent cold water from directly flowing out from the free end of the main pipe 311.

Further, the free end of the first water outlet pipe 400 is away from the water outlet end of the second inner container 200 and is bent towards the side wall of the second inner container 200. Specifically, when the first inner container 100 and the second inner container 200 are disposed up and down along the horizontal direction, the free end of the first water outlet pipe 400 is extended from the right end to the left end of the second inner container 200, and is bent upward at the left end to a position close to the inner wall, so as to improve the output rate of the hot water in the second inner container 200. Similarly, when the first inner container 100 and the second inner container 200 are disposed left and right along the vertical direction, the free end of the first water outlet pipe 400 is extended from the lower end to the upper end of the second inner container 200, and the upper end is bent to the right to be close to the inner wall, so as to improve the output rate of the hot water in the second inner container 200.

Further, a second water outlet pipe 530 connected to the connecting water pipe 500 is disposed in the first inner container 100, and a free end of the second water outlet pipe 530 is far away from a water inlet end of the first inner container 100. The second water outlet pipe 530 is used for delivering the heated hot water in the first inner container 100 to the second inner container 200 for continuous heating. Specifically, when the first inner container 100 and the second inner container 200 are vertically disposed in the horizontal direction, the free end of the second water outlet pipe 530 is extended from the right end to the left end of the first inner container 100, so as to increase the output rate of the hot water in the first inner container 100. Similarly, when the first inner container 100 and the second inner container 200 are disposed left and right in the vertical direction, the free end of the second water outlet pipe 530 is extended from the lower end to the upper end of the first inner container 100, so as to increase the output rate of the hot water in the second inner container 200.

Further, a second water inlet pipe 540 connected with the connecting water pipe 500 is arranged in the second inner container 200, and the free end of the second water inlet pipe 540 is close to the water outlet end of the second inner container 200.

Further, referring to fig. 6, a water inlet portion 541 is disposed along a pipe wall of the second water inlet pipe 540, and the water inlet portion 541 is a hole position regularly distributed.

Referring to fig. 7, a groove 542 is formed in the second inlet conduit 540, and a notch of the groove 542 is formed at a free end of the second inlet conduit 540. The arrangement of the groove 542 can effectively compress the upper space of the second water inlet pipe 540, and prevent the water from being sprayed out from the top of the second water inlet pipe 540 in a concentrated manner.

Further, the inner diameter of the groove 542 is larger than the inner diameter of the groove bottom. The water in the second water inlet pipe 540 is buffered, so that the water flows out at equal flow rate at the hole position at the upper part of the second water inlet pipe 540.

When setting up about along vertical direction to first inner bag 100 and second inner bag 200, the water after first inner bag 100 heating carries out the secondary heating at second inner bag 200 by connecting water pipe 500 and entering into behind the second inlet tube, and the setting of this second inlet tube 540 structure effectively slows down cold water and directly upwards strikes, can make cold water follow the flow of slowing down of all hole sites of second inlet tube 540, and through the influence of gravity, cold water can be followed the bottom and slowly pushed away hot water to the top of second inner bag 200.

In the second embodiment, the first inner container 100 and the second inner container 200 are disposed right and left in the vertical direction, and the first water inlet pipe 300 connected to the first inner container 100 has the structure shown in fig. 6, that is, the second water inlet pipe 540 in the above embodiment may be used as a water pipe for cold water in the water supply network to enter the first inner container 100. Can realize slowing down cold water directly upwards impact equally, can make cold water follow all hole sites of inlet tube and slow the flow, influence cold water again and can slowly push away hot water to the top of first inner bag 100 from the bottom of first inner bag 100 through gravity.

In the third embodiment, with reference to fig. 1, the first inner container 100 and the second inner container 200 are arranged in parallel in the vertical direction; the connection water pipe includes a first connection water pipe 510 and a second connection water pipe 520, which are fixed to the outer wall of the inner container in parallel. In this embodiment, the double-liner water heater is a single-liner heating water heater, that is, only the second liner 200 is provided with a heating pipe, and the first liner 100 is not provided with a heating pipe, and both of them exchange heat through the first connecting water pipe 510 and the second connecting water pipe 520.

Further, the fixing positions of the first connecting water pipe 510 and the second connecting water pipe 520 in the first inner container 100 are both higher than the fixing positions of the first connecting water pipe 510 and the second connecting water pipe 520 in the second inner container 200. In addition, the first connection water pipe 510 and the second connection water pipe 520 are disposed opposite to the inner container support 600, that is, are respectively installed at the front side or the rear side of the first inner container 100 and the second inner container 200.

Furthermore, the water flow in the first connecting water pipe flows from the second inner container to the first inner container; the water flow direction in the second connecting water pipe is from the first inner container to the second inner container. Specifically, the heat exchange principle of this embodiment is: the hot water is heated in the second inner container 200, the density of the water is gradually reduced, the hot water gradually rises upward and reaches the first inner container 100 through the first connecting water pipe 510 which inclines upward, the second inner container 200 generates suction to the first inner container 100 while the hot water is upward, and the cold water follows downward through the second connecting water pipe 520 which inclines downward.

The heat of the first inner container 100 and the heat of the second inner container 200 are rapidly and relatively balanced under the action of the first connecting water pipe 510 and the second connecting water pipe 520, and the hot water circulation is smoother. The problem of the heat imbalance of first inner bag 100 and second inner bag 200 is solved, avoid the temperature regulating device who consequently produces to open and stop frequently simultaneously.

Fourth embodiment, referring to fig. 8, the utility model provides a double-container water heater, include:

a case 800 in which an installation space of the inner container is formed;

the first water inlet pipe 300, the first water inlet pipe 300 stretches into the first liner 100;

a connection water pipe 500 installed between the first and second

inner containers

100 and 200;

the liner support 600 includes a connection plate 620 and support members 610 symmetrically disposed at both ends of the connection plate 620;

wherein the supporting member 610 is respectively attached to the outer walls of the first inner container 100 and the second inner container 200;

the supporting members 610 are fixedly connected to the housing 800 by fixing members.

Specifically, the first and second

inner containers

100 and 200 may be disposed to face each other in the left-right direction or in the up-down direction. In the actual use process of the double-liner water heater, the first water inlet pipe 300 is used for being connected with a water supply pipe network in a user's home, when the user uses hot water, cold water in the water supply pipe network enters the first water inlet pipe 300, the cold water flows into the first liner 100 through the first water inlet pipe 300, and meanwhile, hot water in the first liner 100 is conveyed into the second liner 200 through the connecting water pipe 5.

In some embodiments, with continued reference to fig. 9, the support 610 includes a support plate 611 provided with a through hole 614 and a first bent part 612 and a second bent part 613 positioned at both sides of the support plate 611.

Specifically, referring to fig. 11, the first bending portion 612 and the second bending portion 613 are symmetrically disposed and are in contact connection with the outer wall of the inner container; the second bending portion 613 is fixedly connected to the connecting plate 620. Taking the first inner container 100 as an example, the first bending part 611 and the second bending part 612 of the supporting member 610 are attached to the outer wall of the first inner container 100, and the bending design thereof enables an installation gap to be formed between the supporting member 610 and the first inner container 100, so as to provide a space for installation between the first inner container 100 and the outer shell 800.

Further, regarding the installation between the inner container and the outer shell 800, specifically, the through hole 614 is internally threaded, and the fixing member is a bolt, and the bolt is matched with the through hole to fix the inner container and the outer shell 800.

In addition, an insulating pad 700 is arranged between the supporting member 610 and the casing 800, so that the insulating pad has a heat insulation effect, the friction force of the fixing structure is increased, and the stable fixing of the casing 800 and the liner is realized.

In some embodiments, referring to fig. 10, the bottom of the connection plate 620 is provided with a pressing rib 630 for reinforcing the structural strength of the connection plate 620. The liner support 600 is an integrally formed structure. The metal plate is used for arranging the bent part and the connecting plate 620, so that the strength of the inner container support 600 is greatly improved. The whole liner bracket 600 is uniform in width, few in waste materials, high in raw material utilization rate and low in cost; in addition, 8 contact lines are arranged between the liner support 600 and the liner, and the liner support 600 is welded to stabilize the connection between the liner and the liner support 600 and enhance the strength of the liner support 600; and the connection of the first inner container 100 and the second inner container 200 is also completed through the inner container bracket 600, and the strength of the connection part is enhanced by the bending part and the rib pressing structure, so that the fixing effect of the double containers is satisfied.

Further, a first flange is further arranged on the sealing head of the first inner container 100, a first electric heating part 110 is arranged on the first flange, and the first electric heating part 110 extends into the first inner container 100; a second flange is further arranged on the sealing head of the second inner container 200, a second electric heating part 210 is arranged on the second flange, and the second electric heating part 210 extends into the second inner container 200.

In the above embodiments, unless otherwise specified, it is assumed that each inner container is provided with an electric heating part.

In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. 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 used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A dual bladder water heater comprising:

a housing in which an installation space of the inner container is formed;

the first inner container is used for storing water to be heated;

the second inner container is used for storing water to be heated;

the first water inlet pipe extends into the first inner container;

the first water outlet pipe extends into the second inner container;

2. The dual bladder water heater of claim 1 wherein the free end of the second outlet pipe is distal from the water inlet end of the first bladder.

3. The dual bladder water heater according to claim 1 wherein the free end of the second inlet tube is proximate the outlet end of the second bladder.

4. The dual bladder water heater of claim 1 wherein the water inlet is a regularly distributed hole site.

5. The dual bladder water heater of claim 1 wherein the groove has a greater internal diameter at the mouth of the groove than at the bottom of the groove.

6. The dual bladder water heater of claim 1 wherein the first water inlet conduit includes a main conduit and a tubing sleeved within the main conduit; the free end of the main pipe is close to the water inlet end of the first inner container and is bent towards the side wall of the first inner container.

7. The double-liner water heater according to claim 6, wherein the free end of the main pipe is provided with a first water hole which is distributed on the pipe wall at one side close to the water inlet end;

8. The dual bladder water heater of claim 6 wherein the tube is an axisymmetrical structure having an inside diameter at both ends thereof greater than an inside diameter at a center thereof.

9. The dual bladder water heater of claim 6 wherein the free end of the main tube is provided with a cap for securing the main tube to the piping.

10. The dual bladder water heater according to claim 1 wherein the free end of the first outlet tube is distal from the outlet end of the second bladder and is curved toward the side wall of the second bladder.