CN216080406U

CN216080406U - Double-liner water tank and electric water heater

Info

Publication number: CN216080406U
Application number: CN202121968746.3U
Authority: CN
Inventors: 蔡想周; 盛保敬; 蔺士磊; 刘洋
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-18
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a double-liner water tank and an electric water heater, wherein the double-liner water tank comprises: the water heater comprises an upper inner container, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the end part of the upper inner container is provided with a first water inlet pipe and a first water outlet pipe; the end part of the lower inner container is provided with a second water inlet pipe and a second water outlet pipe, and a second electric heating part is arranged in the lower inner container; the connecting water pipe is connected between the second water outlet pipe and the first water inlet pipe; the upper inner container is arranged above the lower inner container, the second water inlet pipe is positioned at the end part of the lower inner container and extends towards the bottom of the lower inner container, a first extension pipe is further arranged in the lower inner container, and the first extension pipe is arranged at the upper part of the lower inner container and is connected with the second water outlet pipe. The hot water output rate of the double-liner water tank is improved.

Description

Double-liner water tank and electric water heater

Technical Field

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

Background

At present, water heaters are household appliances commonly used in daily life of people, and the water heaters are divided into electric water heaters, heat pump water heaters, solar water heaters and the like. Electric water heaters are widely used because of their convenient use. 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 has the characteristics of large water yield, stable water temperature and the like due to the arrangement of a water tank, and is purchased and used by more families.

In order to increase the water storage capacity of the water tank, the electric heater in the prior art is provided with two inner containers in the housing of the water tank, and thus stores more water by using the two inner containers. For example, chinese patent publication No. CN 204141835U discloses a dual-tank water heater, in which two tanks are connected by a connecting pipe, and an upper tank is connected to a water outlet connecting pipe to output hot water.

Because the lower inner container and the upper inner container are both provided with the electric heating pipes, in the water inlet process of hot water in the lower inner container, cold water enters the lower inner container to cause the upper layer of hot water in the lower inner container to be influenced, so that the hot water output rate of the lower inner container is reduced, and the integral hot water output rate of the water heater is further reduced. In view of this, how to design a technology for improving the hot water output rate is a technical problem to be solved by the present invention.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-container water tank and an electric water heater, which can improve the hot water output rate of the double-container water tank.

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

in one aspect, the present invention provides a dual bladder water tank comprising:

the water heater comprises an upper inner container, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the end part of the upper inner container is provided with a first water inlet pipe and a first water outlet pipe;

the end part of the lower inner container is provided with a second water inlet pipe and a second water outlet pipe, and a second electric heating part is arranged in the lower inner container;

the connecting water pipe is connected between the second water outlet pipe and the first water inlet pipe;

the upper inner container is arranged above the lower inner container, the second water inlet pipe is positioned at the end part of the lower inner container and extends towards the bottom of the lower inner container, a first extension pipe is further arranged in the lower inner container, and the first extension pipe is arranged at the upper part of the lower inner container and is connected with the second water outlet pipe.

Further, the first extension pipe extends towards the direction far away from the second water inlet pipe.

Further, the free end of the first extension pipe is tilted upwards.

Further, a second extension pipe is arranged in the upper inner container, and the second extension pipe is arranged at the upper part of the upper inner container and is connected with the first water outlet pipe.

Further, the second extension pipe extends towards the direction far away from the first water inlet pipe.

Further, the free end of the second extension pipe is tilted upwards.

Furthermore, the first water inlet pipe and the first water outlet pipe are arranged on the sealing head of the upper inner container, and the second water inlet pipe and the second water outlet pipe are arranged on the sealing head of the lower inner container.

Furthermore, an auxiliary water inlet pipe is arranged on the second water inlet pipe, an external port of the auxiliary water inlet pipe is positioned at the lower part of the lower inner container, an auxiliary water outlet pipe is arranged on the first water outlet pipe, and an external port of the auxiliary water outlet pipe is positioned at the lower part of the lower inner container.

Furthermore, the first electric heating part extends towards the bottom direction of the upper inner container, and the second electric heating part extends towards the bottom direction of the lower inner container.

The utility model also provides an electric water heater which comprises the double-liner water tank.

According to the double-liner water tank and the electric water heater provided by the utility model, the second water inlet pipe is arranged to extend towards the bottom in the lower liner, so that cold water output by the second water inlet pipe can flow towards the bottom of the lower liner, and the impact of the cold water on hot water at the top of the lower liner is reduced.

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 introduced 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 creative efforts.

FIG. 1 is a schematic structural view of a dual bladder tank according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of a dual-tank water tank according to a second embodiment of the present invention;

fig. 4 is a sectional view taken along line B-B in fig. 3.

Description of reference numerals:

an upper inner container 1;

the water heater comprises a first water inlet pipe 11, a first water outlet pipe 12, a first electric heating part 13, a second extension pipe 14, a first magnesium rod 15 and an auxiliary water outlet pipe 16;

a lower inner container 2;

a second water inlet pipe 21, a second water outlet pipe 22, a second electric heating part 23, a first extension pipe 24, a second magnesium rod 25 and an auxiliary water inlet pipe 26;

a water outlet end 211;

is connected with a water pipe 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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 utility model. 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 letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses 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 formed between shell and the inner bag, commonly used heat preservation material have: asbestos, sponge, foam plastic, polyurethane foam and the like, and in order to obtain a good heat preservation effect in the conventional technology, a foaming mode is usually adopted to form a heat preservation layer.

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.

As shown in fig. 1-2, the present invention provides a double-tank water tank, in which two inner tanks are disposed in a casing. Specifically, the double-liner water tank comprises:

the water heater comprises an upper inner container 1, wherein a first water inlet pipe 11 and a first water outlet pipe 12 are arranged at the end part of the upper inner container 1, and a first electric heating part 13 is arranged in the upper inner container 1;

the water heater comprises a lower inner container 2, wherein a second water inlet pipe 21 and a second water outlet pipe 22 are arranged at the end part of the lower inner container 2, and a second electric heating part 23 is arranged in the lower inner container 2;

the connecting water pipe 3, the connecting water pipe 3 is connected between the second water outlet pipe 22 and the first water inlet pipe 11;

the upper liner 1 is arranged above the lower liner 2, the second water inlet pipe 21 is positioned at the water outlet end 211 of the lower liner 2 and extends towards the bottom of the lower liner 2, the lower liner 2 is also provided with a first extension pipe 24, and the first extension pipe 24 is arranged at the upper part of the lower liner 2 and is connected with the second water outlet pipe 22.

Specifically, in the actual use process, the second water inlet pipe 21 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 second water inlet pipe 21, the cold water flows into the lower liner 2 through the water outlet end portion 211 of the second water inlet pipe 21, and meanwhile, hot water in the upper middle of the lower liner 2 is output from the first extension pipe 24 and enters the upper liner 1 through the second water outlet pipe 22.

Wherein, for the cold water that second inlet tube 21 input in lower inner bag 2, because the bottom that goes out water tip 211 orientation lower inner bag 2 extends, like this, the cold water that enters into in lower inner bag 2 from second inlet tube 21 just can disperse in the bottom of lower inner bag 2 to reduce the cold water that enters and produce great impact to the top hot water layer, and then increase the hot water output rate of lower inner bag 2.

In addition, the hot water output from the lower inner container 2 flows into the second water outlet pipe 22 through the first extension pipe 24. The first extension pipe 24 can be disposed along the length direction of the lower liner 2 and extend away from the end where the second water inlet pipe 21 is installed, so that the first extension pipe 24 extends toward a direction away from the second water inlet pipe 21. Thus, the output of the top layer hot water can be more facilitated.

In one embodiment, in order to increase the hot water output rate of the lower inner bladder 2 by sufficiently utilizing the difference in specific gravity between the hot and cold water, the free end portion of the first extension pipe 24 is turned upward.

Specifically, the free end of the first extension pipe 24 is bent toward the top region of the lower liner 2, so that the water output from the lower liner 2 needs to flow to the top region of the lower liner 2. And because the cold water sinks and the hot water rises, the hot water in the lower inner container 2 can be output from the top to the maximum extent.

In another embodiment, in order to increase the hot water output rate of the upper liner 1, a second extension pipe 14 may be provided in the upper liner 1, and the second extension pipe 14 is disposed at the upper portion of the upper liner 1 and connected to the first water outlet pipe 12.

Specifically, in the actual use process, the hot water used by the user is output from the first water outlet pipe 12 of the upper liner 1, and the hot water output from the lower liner 2 enters the upper liner 1 and enables the hot water in the upper liner 1 to be output from the first water outlet pipe 12.

And the hot water output from the upper inner container 1 flows into the first water outlet pipe 12 through the second extension pipe 14. Likewise, the second extension pipe 14 can be arranged along the length direction of the upper liner 1 and extend away from the end where the first water inlet pipe 11 is installed, so that the second extension pipe 14 extends in a direction away from the first water inlet pipe 11. Therefore, the output of the hot water at the top layer in the upper liner 1 can be more facilitated, so that the hot water output rate of the electric water heater is improved.

In another embodiment, in order to increase the hot water output rate of the lower liner 2 by sufficiently utilizing the difference in specific gravity between the cold and hot water, the free end portion of the second extension pipe 14 is tilted upward with respect to the second extension pipe 14.

Specifically, the free end of the second extension pipe 14 is bent toward the top region of the upper liner 1, so that the water output from the upper liner 1 needs to flow to the top region of the upper liner 1. And because the cold water sinks and the hot water rises, the hot water in the upper inner container 1 can be output from the top to the maximum extent.

In some embodiments, for convenience of assembly, the first water inlet pipe 11 and the first water outlet pipe 12 may be disposed on a sealing head of the upper liner 1, and the second water inlet pipe 21 and the second water outlet pipe 22 may be disposed on a sealing head of the lower liner 2.

Specifically, in the assembly process, taking the inner container as an example, the first water inlet pipe 11 and the first water outlet pipe 12 are installed and fixed on a sealing head of the upper inner container 1, and the first water inlet pipe 11 and the second water inlet pipe 21 can be installed by opening a hole on the sealing head. Thus, the second extension pipe 14 is arranged transversely as a whole.

In some embodiments, a first magnesium rod 15 can be mounted on the other end of the upper liner 1, and a second magnesium rod 25 can be mounted on the other end of the lower liner 2.

In another embodiment, in order to facilitate the connection of the water pipe in the home of the user, the connection portion of the water pipe externally connected to the home of the user is located at the bottom of the electric water heater, and for this purpose, as shown in fig. 3 and 4, an auxiliary water inlet pipe 26 is provided on the second water inlet pipe 21, an external connection port of the auxiliary water inlet pipe 26 is located at the lower portion of the lower inner container 2, an auxiliary water outlet pipe 16 is provided on the first water outlet pipe 12, and an external connection port of the auxiliary water outlet pipe 16 is located at the lower portion of the lower inner container 2.

In particular, the second inlet pipe 21 is connected to a water supply network in the home of the user through the auxiliary inlet pipe 26, and the first outlet pipe 12 is connected to a water pipe for a home water terminal through the auxiliary outlet pipe 16. Because the external port of the auxiliary water inlet pipe 26 and the external port of the auxiliary water outlet pipe 16 are both positioned at the lower part of the lower liner 2, the field connection of the water pipes by operators can be facilitated.

In other embodiments, in order to improve the heating efficiency, the electric heating parts may be modified such that the first electric heating part 13 extends toward the bottom of the upper inner container 1 and the second electric heating part 23 extends toward the bottom of the lower inner container 2. Taking the first electric heating member 13 as an example, the first electric heating member 13 extends transversely in the upper inner container 1 as a whole, and the free end portion thereof extends toward the bottom of the upper inner container 1, so that the first electric heating member 13 can be arranged by fully utilizing the bottom space of the upper inner container 1, thereby improving the heating efficiency and enhancing the heating effect of cold water at the bottom of the upper inner container 1.

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 examples are only intended to illustrate the technical solution of the present invention, but 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 various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A dual bladder water tank comprising:

2. The dual bladder water tank of claim 1 wherein the first extension tube extends away from the second inlet tube.

3. The dual bladder water tank of claim 2 wherein the free end of the first elongated tube is upturned.

4. The dual bladder water tank as claimed in claim 1, wherein a second extension pipe is provided in the upper bladder, the second extension pipe being disposed at an upper portion of the upper bladder and connected to the first water outlet pipe.

5. The dual bladder water tank of claim 4 wherein the second extension tube extends away from the first inlet tube.

6. The dual bladder water tank of claim 5 wherein the free end of the second elongated tube is upturned.

7. The double-liner water tank as claimed in claim 1, wherein the first water inlet pipe and the first water outlet pipe are arranged on the sealing head of the upper liner, and the second water inlet pipe and the second water outlet pipe are arranged on the sealing head of the lower liner.

8. The double-liner water tank as claimed in claim 7, wherein the second water inlet pipe is provided with an auxiliary water inlet pipe, an external port of the auxiliary water inlet pipe is positioned at the lower part of the lower liner, the first water outlet pipe is provided with an auxiliary water outlet pipe, and an external port of the auxiliary water outlet pipe is positioned at the lower part of the lower liner.

9. The double-liner water tank as claimed in any one of claims 1 to 8, wherein the first electric heating part extends toward the bottom of the upper liner, and the second electric heating part extends toward the bottom of the lower liner.

10. An electric water heater comprising a double tank as claimed in any one of claims 1-9.