CN220707717U

CN220707717U - Water heater

Info

Publication number: CN220707717U
Application number: CN202321864607.5U
Authority: CN
Inventors: 赵龙; 孟凡星; 赵小勇
Original assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-04-02
Anticipated expiration: 2033-07-14

Abstract

The utility model belongs to the technical field of household appliances, and discloses a water heater. The water heater comprises a first inner container and a second inner container, wherein the first inner container is arranged above the second inner container, a communication port is formed between the first inner container and the second inner container, the water heater further comprises an impeller and a heating piece, the impeller is rotatably arranged at the communication port, and the heating piece is arranged in the second inner container. The impeller can rotate under the natural convection action of water, and the impeller can further drive the stirring of water when rotating, so that convection is enhanced, layered fluid caused by different temperatures is mixed, the temperature uniformity of the water in the first liner and the second liner is improved, and the temperature difference between the water at the upper part of the first liner and the water at the lower part of the second liner is reduced. The impeller does not need to be additionally provided with a motor for driving, thereby being beneficial to reducing energy consumption and production cost.

Description

Water heater

Technical Field

The utility model relates to the technical field of household appliances, in particular to a water heater.

Background

Currently, a plurality of water storage type electric water heaters appear on the market. As is well known, water storage type water heaters rely on heating pipes to heat water within the bladder. The flow of water in the existing liner mainly depends on natural convection of water, so that the heating rate is low, hot water exists at the upper part of the liner due to the action of gravity, cold water exists at the bottom of the liner, and the temperature difference between the upper part and the lower part of the liner is large. In addition, for the condition of heating by adopting a single heating pipe (the heating pipe is arranged on the inner container below) with double inner containers, the temperature difference of water in the upper inner container and the lower inner container is more obvious, and the temperature difference is about 20 ℃, namely the temperature uniformity of water in the inner containers is poorer.

The rotary stirrer is added in the inner container of the part of water heater to stir the water in the inner container, but most of the water heater adopts the motor to drive the stirring piece to rotate, so that the use cost is increased due to power consumption, the motor is positioned outside the inner container, at least part of the stirring piece is positioned in the inner container, the sealing performance requirement on the matching part of the inner container and the stirrer is high, and the production cost is increased.

Disclosure of Invention

The utility model aims to provide a water heater, which solves the problems of poor fluidity of water in a liner, large temperature difference and increased cost caused by the arrangement of a stirrer.

To achieve the purpose, the utility model adopts the following technical scheme:

the water heater, including first inner bag and second inner bag, first inner bag set up in the top of second inner bag, first inner bag with be provided with the intercommunication mouth between the second inner bag, the water heater still includes:

the impeller is rotationally arranged at the communication port;

the heating piece is arranged in the second liner.

When water naturally flows due to different temperatures, the impeller is driven to rotate, the impeller rotates to further stir the water, convection of the water is enhanced, layered fluid is mixed due to different temperatures, the temperature uniformity of the water in the first inner container and the water in the second inner container is improved, and the temperature difference between the water at the upper part of the first inner container and the water at the lower part of the second inner container is reduced; the impeller does not need motor drive, can reduce the energy consumption, and the inner bag does not need to set up complicated seal structure, is favorable to reduction in production cost.

As an alternative scheme of the water heater, the water heater further comprises a flow guide pipe, the flow guide pipe is arranged at the communication port, one end of the flow guide pipe extends towards the inside of the first liner, the other end of the flow guide pipe extends towards the inside of the second liner, and the impeller is rotatably arranged in the flow guide pipe.

Through setting up the honeycomb duct, can play the drainage effect to the flow of water between first inner bag and the second inner bag to promote the flow of water between first inner bag and the second inner bag.

As an alternative scheme of the water heater, the flow guide pipe, the first liner and the second liner are integrally formed.

The honeycomb duct, the first inner container and the second inner container can be integrally formed, so that the number of parts is reduced, and the sealing performance is improved.

As an alternative of the water heater, the number of the impellers is at least one, and the impellers are arranged at one end of the flow guiding pipe, which is at least positioned on the first liner.

As an alternative scheme of the water heater, a support is arranged in the guide pipe, the support is connected with the inner wall of the guide pipe, and the impeller is rotatably arranged on the support.

As an alternative scheme of the water heater, the support comprises a plurality of supporting ribs, one ends of the supporting ribs are connected, and the other ends of the supporting ribs extend radially and are connected with the inner wall of the guide pipe.

As an alternative to the above water heater, the heating element extends along the axial direction of the second liner;

and/or the heating element is positioned below the impeller.

The heating element can be arranged below the impeller, so that water flowing downwards under the drive of the impeller can be directly contacted with the heating element, and is rapidly heated.

As an alternative scheme of the water heater, the number of the communication ports is two, the impeller is arranged at one of the two communication ports, the water heater further comprises a hot water outlet pipe, one end of the hot water outlet pipe penetrates through the second liner and stretches into the upper part of the first liner, and the hot water outlet pipe penetrates through the other one of the two communication ports.

As an alternative to the above water heater, the difference between the density of the impeller and the density of the water is less than a preset value.

The impeller may have a density equal to that of water, or a density difference between them less than a preset value. By reducing the density difference between the two, the vibration of the inner container caused by gravity in the rotation process of the impeller can be reduced, so that the structural strength of the water heater is improved.

As an alternative to the above water heater, the impeller is made of a high temperature resistant material.

The utility model has the beneficial effects that:

in the water heater provided by the utility model, the impeller can rotate under the natural convection effect of water, and the impeller can further drive the stirring of the water while rotating, so that the convection is favorably enhanced, layered fluids caused by different temperatures are mixed, the temperature uniformity of the water in the first liner and the water in the second liner is improved, and the temperature difference between the water at the upper part of the first liner and the water at the lower part of the second liner is reduced.

In addition, the impeller rotates to strengthen convection, so that water in the liner can keep a flowing state, dirt in the liner is prevented from precipitating, the scaling of the liner is slowed down, and the cleaning frequency of the liner is reduced.

The impeller is arranged at the communication port, water passes through the impeller when flowing between the first inner container and the second inner container, so that the speed of water flow driving the impeller to rotate is greatly improved, and the water is stirred by the rotation of the impeller; the impeller does not need to be additionally provided with a motor to drive, so that the electricity cost is reduced on one hand, and on the other hand, the impeller is completely positioned in the inner container, the tightness of the first inner container and the second inner container cannot be damaged, a complex sealing structure is not required to be arranged, the structure is simplified, and the sealing requirement and the production cost are reduced.

Drawings

FIG. 1 is a front view of a part of the structure of a water heater provided by the present utility model;

FIG. 2 is a cross-sectional view of a portion of the structure of the water heater provided by the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken along B-B in FIG. 1;

fig. 5 is an isometric view of fig. 2.

In the figure:

11. a first liner; 12. a second liner; 13. a communication port; 14. a flow guiding pipe; 15. a bracket; 2. an impeller; 3. a cold water inlet pipe; 4. a hot water outlet pipe; 5. and a heating member.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

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.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1, this embodiment provides a water heater, including first inner bag 11 and second inner bag 12, first inner bag 11 sets up in the top of second inner bag 12, is provided with intercommunication mouth 13 between first inner bag 11 and the second inner bag 12, and two inner bags intercommunication use, can improve the water yield, satisfies big water yield user demand.

As shown in fig. 2, the water heater further comprises a heating element 5, a hot water outlet pipe 4 and a cold water inlet pipe 3. The heating element 5 is arranged in the second liner 12. One end of the hot water outlet pipe 4 extends into the first liner 11 or the second liner 12, and the other end of the hot water outlet pipe 4 is positioned outside the second liner 12 and the first liner 11 and is used for outputting hot water. One end of the cold water inlet pipe 3 extends into the second inner container 12, and the other end is positioned outside the second inner container 12 and is used for connecting a cold water source so as to supply cold water into the second inner container 12.

The cold water enters the second inner container 12 from the cold water inlet pipe 3, and enters the first inner container 11 above through the communication port 13 along with the rising of the water level. After the cold water in the second liner 12 is heated by the heating element 5, the heated water flows upward, and the unheated water flows downward, so that natural convection of the water is realized.

Due to the slow natural convection heat transfer rate of the water, the temperature difference of the water in the first inner container 11 and the second inner container 12 is large, the temperature distribution is uneven, and the heating time is long. In order to solve the above problem, the impeller 2 is rotatably provided at the communication port 13 in the present embodiment. The impeller 2 can rotate under the natural convection action of water, and the impeller 2 can further drive the stirring of water when rotating, so that convection is enhanced, layered fluid caused by different temperatures is mixed, the temperature uniformity of water in the first liner 11 and the second liner 12 is improved, and the temperature difference between the water at the upper part of the first liner 11 and the water at the lower part of the second liner 12 is reduced.

In addition, the impeller 2 is arranged at the communication port 13, and water passes through the impeller 2 when flowing between the first liner 11 and the second liner 12, so that the speed of water flow driving the impeller 2 to rotate is greatly improved, and the impeller 2 rotates to stir the water; the impeller 2 does not need to be additionally provided with a motor to drive, so that on one hand, the electricity cost is reduced, on the other hand, the impeller 2 is completely positioned in the inner container, the tightness of the first inner container 11 and the second inner container 12 cannot be damaged, a complex sealing structure is not required to be arranged, the structure is simplified, and the sealing requirement and the production cost are reduced.

The impeller rotates to strengthen convection, dirt precipitation in the liner can be avoided by keeping water in the liner in a flowing state, so that the liner scaling is slowed down, and the cleaning frequency of the liner is reduced.

In this embodiment, the axis of the impeller 2 extends in the vertical direction, so that the water flow drives the impeller 2 to rotate.

As shown in fig. 2 and 3, by utilizing the characteristic that heated hot water flows upward, one end of the hot water outlet pipe 4 passes through the second liner 12 and extends into the upper portion of the first liner 11, so that the height of one end of the hot water outlet pipe 4 extending into the liner is high, and heated hot water can enter the hot water outlet pipe 4, thereby supplying hot water to the outside.

In order to facilitate the hot water outlet pipe 4 to pass through the second inner container 12 and extend into the first inner container 11, two communication ports 13 are arranged between the first inner container 11 and the second inner container 12, the hot water outlet pipe 4 passes through one of the communication ports 13, and the impeller 2 is rotatably arranged at the other communication port 13. By arranging the two communication ports 13, on one hand, the flow area of water between the first inner container 11 and the second inner container 12 can be increased, and the water in the first inner container 11 and the water in the second inner container 12 can be fully mixed; on the other hand, the interference between the hot water outlet pipe 4 and the impeller 2 can be avoided, and the normal operation of the water heater is ensured.

In other embodiments, the number of the communication ports 13 may be set as needed, for example, one, three, four, or more may be set.

As shown in fig. 2, the top end of the cold water inlet pipe 3 extends to the top end of the second liner 12. It can be understood that when cold water enters the second inner container 12, the cold water flows to the bottom end of the second inner container 12 under the action of gravity, so that hot water in the second inner container 12 flows upwards, natural convection of water in the second inner container 12 can be promoted in the cold water entering process, layered fluid in the second inner container 12 due to different temperatures can be stirred, and uniformity of water temperature in the second inner container 12 is improved.

As shown in fig. 2 and 4, the water heater further includes a flow guiding tube 14, the flow guiding tube 14 is disposed at the communication port 13, one end of the flow guiding tube 14 extends into the first liner 11, the other end of the flow guiding tube 14 extends into the second liner 12, and the impeller 2 is rotatably disposed in the flow guiding tube 14. By providing the draft tube 14, the flow of water between the first liner 11 and the second liner 12 can be guided to promote the flow of water between the first liner 11 and the second liner 12.

In this embodiment, the flow guiding tube 14, the first liner 11 and the second liner 12 may be integrally formed, so as to reduce the number of parts and improve the sealing performance.

As shown in fig. 4, the impeller 2 is disposed at one end of the draft tube 14 extending into the first liner 11. In other embodiments, the end of the draft tube 14 located in the second liner 12 may also be provided with an impeller 2 to further facilitate the flow of water.

In order to facilitate the installation of the impeller 2, a support 15 is arranged in the flow guide pipe 14, the support 15 is connected with the inner wall of the flow guide pipe 14, and the impeller 2 can be rotatably arranged on the support 15 through a rotating shaft. In order to avoid the influence of the support 15 on the water passing through the guide pipe 14, in this embodiment, the support 15 includes a plurality of support ribs, one ends of the plurality of support ribs are connected, and the other ends of the plurality of support ribs extend radially and are connected with the inner wall of the guide pipe 14. Gaps are arranged between two adjacent support ribs, and the gaps provide space for water to flow.

Alternatively, the number of the supporting ribs may be two, three, four or more to improve the stability of the support of the impeller 2.

As shown in fig. 2 and 5, the heating element 5 is disposed in the second liner 12 and extends along the axial direction of the second liner 12, so as to increase the contact area between the heating element 5 and water and improve the heating efficiency of the water. Alternatively, the heating element 5 may be a heating tube, where one end of the heating tube extends into the second inner container 12, and the other end extends out of the second inner container 12, so as to facilitate electrical connection and power supply.

In order to enable the water flowing downwards at a lower temperature to be heated by the heating member 5 more quickly, the heating member 5 may be disposed under the impeller 2, so that the water flowing downwards under the driving of the impeller 2 can be directly contacted with the heating member 5, thereby being heated rapidly.

Because the impeller 2 is in direct contact with the hot water in the bladder, the impeller 2 may be made of a high temperature resistant material, such as ceramic, polyimide resin, or phenolic resin, in order to avoid damage to the impeller 2.

In order to avoid vibration of the liner caused during rotation of the impeller 2, the density of the impeller 2 may be similar to that of water, i.e. the density of the impeller 2 may be equal to that of water, or the density difference between the two may be smaller than a preset value. By reducing the density difference between the two, the vibration of the inner container caused by gravity in the rotation process of the impeller 2 can be reduced, so that the structural strength of the water heater is improved.

As shown in fig. 5, a plurality of through holes are formed in the outer circumferential surface of the portion of the cold water inlet pipe 3 extending into the second liner 12, and cold water can flow out of the through holes, so that the water inlet area of the cold water inlet pipe 3 is increased, and the water supplementing speed of the cold water is improved. In addition, the plurality of through holes are divided into a plurality of groups, each group including at least two through holes arranged along the circumferential direction of the cold water inlet pipe 3, the plurality of groups of through holes being arranged at intervals along the axial direction of the cold water inlet pipe 3. This arrangement increases the direction of the cold water flow, which is beneficial to disturbing the water in the second liner 12 to promote the flow of water in the second liner 12.

The water heater also comprises a magnesium rod. Magnesium rods are arranged in the first inner container 11 and the second inner container 12, and used as anodes to consume negative ions in water so as to avoid corrosion of the inner containers.

Temperature measuring pieces are arranged in the first inner container 11 and the second inner container 12 and used for detecting water temperature in the inner containers so as to control start and stop and power of the heating piece 5 and meet water use requirements of users on the basis of energy conservation.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The water heater, including first inner bag (11) and second inner bag (12), first inner bag (11) set up in the top of second inner bag (12), first inner bag (11) with be provided with intercommunication mouth (13) between second inner bag (12), its characterized in that, the water heater still includes:

the impeller (2) is rotationally arranged at the communication port (13), and the axis of the impeller (2) extends along the vertical direction;

and the heating piece (5), wherein the heating piece (5) is arranged in the second liner (12).

2. The water heater according to claim 1, further comprising a flow guide pipe (14), wherein the flow guide pipe (14) is arranged at the communication port (13), one end of the flow guide pipe (14) extends into the first inner container (11), the other end of the flow guide pipe (14) extends into the second inner container (12), and the impeller (2) is rotatably arranged in the flow guide pipe (14).

3. The water heater according to claim 2, wherein the draft tube (14), the first liner (11) and the second liner (12) are integrally formed.

4. Water heater according to claim 2, characterized in that the number of impellers (2) is at least one, and that at least one end of the flow guiding tube (14) located at the first inner container (11) is provided with the impellers (2).

5. The water heater as claimed in claim 2, wherein a bracket is provided in the draft tube (14), the bracket is connected with the inner wall of the draft tube (14), and the impeller (2) is rotatably provided on the bracket.

6. The water heater as claimed in claim 5, wherein said bracket includes a plurality of support ribs, one ends of said plurality of support ribs being connected, and the other ends of said plurality of support ribs being radially extended and connected to an inner wall of said draft tube (14).

7. -water heater according to any one of claims 1 to 6, characterised in that the heating element (5) extends in the axial direction of the second liner (12);

and/or the heating element (5) is located below the impeller (2).

8. The water heater according to any one of claims 1-6, wherein the number of the communication ports (13) is two, the impeller (2) is arranged at one of the two communication ports (13), the water heater further comprises a hot water outlet pipe (4), one end of the hot water outlet pipe (4) penetrates through the second liner (12) and extends into the upper part of the first liner (11), and the hot water outlet pipe (4) penetrates through the other of the two communication ports (13).

9. A water heater according to any one of claims 1-6, wherein the impeller (2) has a density equal to that of water.

10. A water heater according to any one of claims 1-6, wherein the impeller (2) is made of a high temperature resistant material.