CN211695424U - Inner container structure and water storage type water heater - Google Patents

Abstract

The utility model discloses an inner container structure and a water storage type water heater, wherein the inner container structure comprises a plurality of inner containers and anti-corrosion pieces, and the inner containers are mutually communicated; the anti-corrosion piece is arranged in the at least two inner containers and used for performing anti-corrosion protection on the at least two inner containers. The utility model provides an inner bag structure includes a plurality of inner bags that communicate each other, through laying the anti-corrosion piece in wherein two at least inner bags, thereby right two at least inner bags carry out the anticorrosion protection simultaneously, have improved the inner bag anticorrosion protection effect of many inner bags water heater.

Description

An inner tank structure and a water storage type water heater

technical field

The utility model relates to the technical field of household appliances, in particular to the technical field of water heaters, in particular to an inner tank structure and a water storage type water heater.

Background technique

As a commonly used household electrical appliance, water storage water heaters always have water in the inner tank, and there are corrosive ions in the water, which causes the water quality in different regions to have different corrosiveness to the enamel inner tank or the stainless steel inner tank. It will cause the liner to corrode and leak, and affect the user's safety.

In order to alleviate the corrosive effect of water on the inner tank, the inner tank of the water heater is generally protected. With the improvement of the quality of life, the requirements for water heaters are getting higher and higher, and water heaters with multiple inner tanks are gradually appearing in the market. The device only has a certain anti-corrosion protection effect on the inner tank installed with the anti-corrosion device, and the overall anti-corrosion protection effect is not ideal.

Utility model content

The main purpose of the utility model is to propose an inner tank structure and a water storage type water heater, aiming at improving the anti-corrosion protection effect of the inner tank of the multi-inner tank water heater.

In order to achieve the above-mentioned purpose, a kind of inner tank structure proposed by the present utility model includes:

a plurality of inner bladders, and a plurality of said inner bladders are arranged in communication with each other; and,

The anti-corrosion element is arranged in the at least two inner bladders, and is used for anti-corrosion protection for the at least two inner bladders.

Optionally, the anti-corrosion member includes a plurality of first protective electrodes, and the plurality of first protective electrodes are correspondingly disposed in the plurality of inner bladders; or,

The anti-corrosion member includes at least one first protection electrode, and the first protection electrode is arranged through the at least two inner pots.

Optionally, the anti-corrosion member further includes a plurality of second protective electrodes, and the plurality of second protective electrodes are correspondingly arranged in the plurality of the inner pots; or,

The anti-corrosion member further includes at least one second protection electrode, and the second protection electrode is arranged through the at least two inner pots.

Optionally, one of the first protective electrode and the second protective electrode is an electron anode, and the other is a sacrificial anode.

Optionally, the electronic anode includes a titanium substrate and an iridium-tantalum alloy coating coated on the outside of the titanium substrate.

Optionally, the diameter of the titanium substrate is 0.5-30 mm; and/or,

The thickness of the iridium-tantalum alloy coating is 1-30 μm; and/or,

The length of the iridium-tantalum alloy coating is 3-100 cm.

Optionally, the material of the sacrificial anode includes any one of magnesium, aluminum, zinc, magnesium alloy, aluminum alloy and zinc alloy.

Optionally, the material of the sacrificial anode is magnesium alloy AZ63B; and/or,

The diameter of the sacrificial anode is 22 mm and the length is 305-400 mm.

Optionally, the inner container structure further includes a control device, and the control device is electrically connected to the electronic anode to control the output current of the electronic anode.

Optionally, the inner pot has opposite ends arranged along the length direction of the inner pot, the inner pot structure further includes an end cap assembly arranged at one end of each inner pot, and the anti-corrosion member set on the end cap assembly.

Optionally, the end cap assembly includes:

a side end cap, which is covered on one end of the inner pot; and,

a flange plate, arranged on the side of the side end cover away from the inner tank;

Wherein, the anti-corrosion member is arranged on the side end cover, or the anti-corrosion member is arranged on the flange.

Further, in order to solve the above technical problems, the utility model also proposes a water storage type water heater, the water storage type water heater includes an inner tank structure, and the inner tank structure includes:

a plurality of inner bladders, and a plurality of said inner bladders are arranged in communication with each other; and,

The anti-corrosion element is arranged in the at least two inner bladders, and is used for anti-corrosion protection for the at least two inner bladders.

In the technical solution provided by the present invention, the inner pot structure includes a plurality of inner pots which are connected with each other, and by disposing anti-corrosion parts in at least two of the inner pots, the at least two inner pots can be protected against corrosion at the same time, The liner anti-corrosion protection effect of the multi-liner water heater is improved.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

Fig. 1 is the structural schematic diagram of the first embodiment of the inner pot structure provided by the utility model;

Fig. 2 is the structural schematic diagram of the second embodiment of the inner pot structure provided by the present invention;

3 is a schematic structural diagram of a third embodiment of the inner bladder structure provided by the present invention;

4 is a schematic structural diagram of a fourth embodiment of the inner bladder structure provided by the present invention;

Fig. 5 is the structural schematic diagram of the fifth embodiment of the inner pot structure provided by the present invention;

Fig. 6 is the structural schematic diagram of the sixth embodiment of the inner pot structure provided by the present invention;

FIG. 7 is a schematic structural diagram of a seventh embodiment of the inner container structure provided by the present invention.

Description of reference numbers:

label name label name 100 Inner bladder structure 20 Anti-corrosion parts 10 inner bladder twenty one first guard electrode 11 upper liner twenty two second guard electrode 12 lower liner 30 control device 13 water intake 40 end cap assembly 14 Outlet

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in 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. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention, the directional indications are only used to explain a certain posture (such as the accompanying drawings). When the relative positional relationship, movement situation, etc. between the various components shown below), if the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as instructions or Implicit their relative importance or implicitly indicate the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" in the whole text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or scheme satisfying both of A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

In order to alleviate the corrosive effect of water on the inner tank, the inner tank of the water heater is generally protected. With the improvement of the quality of life, the requirements for water heaters are getting higher and higher, and water heaters with multiple inner tanks are gradually appearing in the market. The device only has a certain anti-corrosion protection effect on the inner tank installed with the anti-corrosion device, and the overall anti-corrosion protection effect is not ideal.

In view of this, the present utility model proposes a water storage type water heater, which includes an inner tank structure. Figures 1 to 7 are examples of the inner tank structure provided by the present utility model, because the main inventive point of the present utility model is In order to improve the structure of the inner bladder, the structure of the inner bladder is mainly described below with reference to the specific drawings.

In the embodiment of the present invention, the inner pot structure 100 includes a plurality of inner pots 10 and anti-corrosion members 20, wherein the plurality of inner pots 10 are arranged in communication with each other; the anti-corrosion members 20 are arranged in at least two inner pots 10, using In order to carry out anti-corrosion protection to at least two inner pots 10 .

In the technical solution provided by the present invention, the inner pot structure 100 includes a plurality of inner pots 10 which are connected with each other, and by disposing the anti-corrosion parts 20 in at least two inner pots 10, the at least two inner pots 10 can be protected against at least two inner pots 10 at the same time. Corrosion protection, improves the corrosion protection effect of the inner tank 10 of the multi-inner tank water heater. It should be noted that the inner tank 10 has an inner cavity, water is stored in the inner cavity, and the anti-corrosion member 20 is arranged in the inner tank 10 and immersed in the water, so that the corrosion ions in the water can generate electricity in the presence of the anti-corrosion member 20 . chemical reaction, so as to avoid corrosion of the inner wall surface of the inner pot 10 caused by the corrosive ions.

The anti-corrosion member 20 may be arranged in the at least two inner pots 10 by providing a plurality of protective electrodes and correspondingly disposed in the plurality of inner pots 10 , or may be a protective electrode arranged to penetrate through the plurality of inner pots 10 at the same time. Specifically, in the embodiment of the present invention, the anti-corrosion member 20 includes a plurality of first protective electrodes 21, and the plurality of first protective electrodes 21 are correspondingly arranged in the plurality of inner containers 10; or, the anti-corrosion member 20 includes at least one The first protection electrode 21 is disposed through the at least two inner containers 10 . It should be noted that, in the technical solution of the present invention, the number and arrangement of the inner pots 10 are not specifically limited, and may include two or more inner pots 10 in any number. They can be arranged in sequence according to a desired path, for example, along a straight line, along an arc, or in an array, etc., so as to adapt to the shape of the cavity of the storage water heater. When the anti-corrosion member 20 is arranged in a manner of penetrating through a plurality of inner pots 10, one first protective electrode 21 may be provided to penetrate all inner pots 10 at the same time, or a plurality of first protective electrodes 21 may be provided, and each first protective electrode 21 may be provided. A guard electrode 21 is disposed through at least two electrodes.

Further, the anti-corrosion member 20 further includes a plurality of second protective electrodes 22, and the plurality of second protective electrodes 22 are correspondingly arranged in the plurality of inner pots 10; or, the anti-corrosion member 20 further includes at least one second protective electrode 22, The second protection electrode 22 is disposed through at least two inner bladders 10 . In this way, the second protective electrode 22 is provided on the basis of the first protective electrode 21 to further improve the anti-corrosion protection effect on the inner pot 10 .

In all the embodiments of the present invention, for the convenience of description, the inner tank 10 includes the upper inner tank 11 and the lower inner tank 12 arranged in the up-down direction as an example, and it is further explained that the anti-corrosion member 20 includes the first protective electrode 21 and the first protective electrode 21 and the second inner tank 12. The setting mode of the two protection electrodes 22 . In the first embodiment provided by the present invention, as shown in FIG. 1 , one first protective electrode 21 is provided, and extends from the side wall of the lower inner pot 12 toward the upper inner pot 11 to the point extending into the upper inner pot 11 . Inside; two second protection electrodes 22 are provided, and they are respectively arranged in the upper inner pot 11 and the lower inner pot 12 respectively. In the second embodiment provided by the present invention, as shown in FIG. 2 , one second protective electrode 22 is provided, and extends from the side wall of the lower inner pot 12 toward the upper inner pot 11 to the end extending into the upper inner pot 11 . Inside; there are two first protection electrodes 21 , and they are respectively arranged in the upper inner pot 11 and the lower inner pot 12 respectively. In the third embodiment provided by the present invention, referring to FIG. 3 , one first protective electrode 21 and one second protective electrode 22 are provided, and both extend from the side wall of the lower inner pot 12 toward the upper inner pot 11 to Protruding into the interior of the upper inner tank 11 . In the fourth embodiment provided by the present invention, referring to FIG. 4 , one first protection electrode 21 is provided, and is provided in the upper inner tank 11 ; two second protection electrodes 22 are provided, and are respectively provided in In the upper liner 11 and the lower liner 12. In the fifth embodiment provided by the present invention, referring to FIG. 5 , there are two first protection electrodes 21 and two second protection electrodes 22 , and they are respectively arranged in the upper inner tank 11 and the lower inner tank 12 respectively. . In the sixth embodiment provided by the present invention, as shown in FIG. 6 , one first protection electrode 21 is provided, and is provided in the lower inner tank 12 ; two second protection electrodes 22 are provided, and are respectively provided in the lower inner tank 12 . In the upper liner 11 and the lower liner 12. The arrangement in the above various embodiments can make both the upper inner pot 11 and the lower inner pot 12 are provided with anti-corrosion members 20 , so as to improve the anti-corrosion protection effect on the inner pot 10 .

Further, one of the first protective electrode 21 and the second protective electrode 22 is an electronic anode, and the other is a sacrificial anode, wherein the corrosion potential of the electronic anode (corrosion potential can indicate the relative difficulty of metal losing electrons, corrosion The more negative the potential, the easier it is to lose electrons) than that of the sacrificial anode, that is, the electronic anode is more likely to lose electrons than the sacrificial anode and be corroded, so that the cathode (the inner pot 10) is protected. Therefore, when the water heater is in the energized state, the electronic anode works under the action of electricity, and forms a primary battery with water and the inner tank 10 to replace the inner tank 10 and is corroded, which plays a role in protecting the inner tank 10. At this time, the sacrificial anode and the inner tank 10 is insulated; and when the water heater is in a power-off state, the electronic anode does not work. At this time, the sacrificial anode, water and the inner tank 10 constitute a primary battery instead of the inner tank 10 to be corroded, which plays the role of protecting the inner tank 10. In this way, even when the electronic anode fails to work when the water heater is powered off, the inner pot 10 can be protected by the sacrificial anode, so that the inner pot 10 is always in a protected state, which significantly improves the protection against the water heater inner pot 10. The anti-corrosion protection effect helps to prolong the service life of the inner tank 10.

In the process of anti-corrosion, the electronic anode is used to provide electrons for the inner tank 10 in the energized state, and a material with a lower corrosion potential can be selected. The iridium-tantalum alloy coating on the outside of the substrate, wherein the iridium-tantalum alloy coating can be formed on the surface of the titanium substrate by sintering.

The specific size of the electronic anode may not be limited, so as to adapt to the shape and size of the water heater liner 10 and facilitate installation. In different installation methods, its specific size can be adjusted accordingly, especially its length. When there are 10 inner tanks, the length dimension of the electronic anode can be extended correspondingly. Specifically, in the embodiments provided by the present invention, the specific dimensions of the electronic anode are designed as follows: the diameter of the titanium substrate is 0.5-30 mm; and/or the thickness of the iridium-tantalum alloy coating is 1-30 μm; and/or , the length of the iridium-tantalum alloy coating is 3-100cm. The above three size ranges may be limited to only two of them, or two or three of them may be limited at the same time.

In addition, in order to control the output current of the electronic anode to control the potential of the inner pot 10, in the embodiment provided by the present invention, the inner pot structure 100 further includes a control device 30, and the control device 30 is electrically connected with the electronic anode to control the The output current of the electron anode. When there are multiple electronic anodes, the control device 30 may be single, and the output currents of multiple electronic anodes can be controlled simultaneously through one control device 30, such as the second embodiment shown in FIG. 2; In the seventh embodiment of the present invention, as shown in FIG. 7 , multiple control devices 30 may also be provided, and the multiple control devices 30 are correspondingly electrically connected to the multiple electronic anodes to control the output currents of the multiple electronic anodes respectively. It should be noted that, the output current of the electronic anode can be controlled by the control device 30 by setting a control circuit in the circuit structure of the water heater connected to the power supply, or by setting a separate control circuit independent of the water heater. Do detail.

To further illustrate the specific anti-corrosion parameters of the embodiment of the present invention, the upper and lower inner pots are not provided with any anti-corrosion parts 20 as a comparative example (the potential of the inner pot 10 when the upper and lower inner pots are not provided with anti-corrosion parts 20 is -0.5V vs. SCE), for example, when the anti-corrosion member 20 includes an electronic anode penetrating the plurality of inner pots 10, and a plurality of sacrificial anodes distributed in the plurality of inner pots 10 (the embodiment 1 shown in FIG. 1 ), in the When the electronic anode is working and the sacrificial anode is not working, the potential of the upper liner 11 is -0.9V vs. SCE, and the potential of the lower liner 12 is -0.85V vs. SCE. When the electronic anode is not working and the sacrificial anode is working, the potential is -0.9V vs. SCE. , the potential of the upper liner 11 is -1.1V vs. SCE, and the potential of the lower liner 12 is -0.56V vs. SCE, which are all lower than the potential of the inner liner 10 in the comparative example, indicating that this embodiment can make the upper and lower liner 12 even In the state of anti-corrosion protection, and when the electronic anode is working, the upper and lower inner pots 12 are in a good anti-corrosion protection state. For another example, when the anti-corrosion member 20 includes a sacrificial anode penetrating the plurality of inner pots 10, and a plurality of electronic anodes (the embodiment 2 shown in FIG. 2 and the embodiment 7 shown in FIG. ), when the electronic anode is working and the sacrificial anode is not working, the potentials of the upper liner 11 and the lower liner 12 are both -0.9Vvs.SCE (relative to the saturated copper sulfate reference electrode CSE). In the working state and the sacrificial anode working state, the potential of the upper liner 11 is -1.1V vs. SCE, the potential of the lower liner 12 is -1.25V vs. SCE, and the potential of the upper and lower liner 12 is significantly lower than that of the comparison example. The potential of the bladder 10 shows that this embodiment can make the upper and lower inner bladders 12 in a state of good anti-corrosion protection at all times, and compared with the existing scheme of separately setting a sacrificial anode as an anti-corrosion device, the The anti-corrosion part 20 has a longer service life, low use and maintenance costs, and has a good market prospect.

The sacrificial anode is used to directly form a primary battery with water and the inner tank 10 in the working process, and metal materials such as magnesium, aluminum or zinc can be selected. Specifically, in the embodiment of the present invention, the material of the sacrificial anode includes magnesium, aluminum , any one of zinc, magnesium alloy, aluminum alloy and zinc alloy, and more preferably an alloy material, with higher mechanical strength to meet the needs of processing and installation.

As a preferred embodiment, the material of the sacrificial anode is magnesium alloy AZ63B; further, the specific size of the sacrificial anode may not be limited, so as to adapt to the shape and size of the water heater liner 10 and facilitate installation, and in different installations In the method, its specific size can be adjusted correspondingly, especially its length size, when it is necessary to penetrate a plurality of inner pots 10, the length size of the sacrificial anode can be correspondingly extended. Specifically, in the embodiment provided by the present invention, the specific dimensions of the electronic anode are designed as follows: the diameter of the sacrificial anode is 22 mm, and the length is 305-400 mm.

The inner tank 10 generally includes an inner tank shell and an end cover assembly 40. The inner tank shell is provided with a water inlet 13 and a water outlet 14. In the embodiment of the present invention, the water inlet 13 and the water outlet 14 are both arranged in the lower inner tank. At the bottom of the bladder 12, the shells of the multiple inner bladders 10 may be in continuous communication, for example, by directly opening communication holes on the adjacent side walls of two adjacent inner bladders 10, so that the two adjacent inner bladders 10 are communicated with each other. , it can also be connected through an external pipeline. In addition, the storage water heater also includes a heater for heating the water stored in the inner tank 10. In order to facilitate installation and beautify the appearance, the heater is usually installed on the end cover assembly 40, and when the anti-corrosion member 20 is installed, It can be installed on the side wall surface of the inner tank shell, and can also be installed in the end cover assembly 40, as long as the anti-corrosion member 20 can be arranged in at least two inner tank 10 at the same time. Preferably, the inner pot 10 has opposite ends arranged along the length direction of the inner pot 10, the inner pot structure 100 further includes an end cap assembly 40 arranged at one end of each inner pot 10, and the anti-corrosion member 20 is arranged on the end cap assembly 40. By installing the anti-corrosion member 20 on the end cap assembly 40 , it is beneficial to reduce the number of openings in the shell of the inner tank 10 , so as to reduce the influence on the sealing performance of the shell of the inner tank 10 . It should be noted that when the installation methods of the anti-corrosion member 20 are different, the installation position of the anti-corrosion member 20 on the inner tank 10 can also be adjusted correspondingly. For example, when the anti-corrosion member 20 includes a plurality of When the first protective electrode 21 is used, the anti-corrosion member 20 is preferably installed on the end cap assembly 40. When the anti-corrosion member 20 includes at least one first protective electrode 21 extending through at least two inner pots 10, it is preferably installed on the end cap assembly 40. The side wall of one inner container 10 extends toward the adjacent inner container 10 to be arranged in a plurality of inner containers 10 at the same time.

Further, the heater of the storage water heater is generally installed through a flange, specifically, the end cover assembly 40 includes a side cover (not shown) and a flange (not shown), and the side cover It is arranged on one end of the inner tank 10; the flange is arranged on the side of the side end cover away from the inner tank 10; wherein, the anti-corrosion piece 20 is arranged on the side end cover, or the anti-corrosion piece 20 is arranged on the flange plate. When the anti-corrosion member 20 is installed on the side end cover or the flange, it is only necessary to open corresponding mounting holes on the side end cover or the flange.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structural transformations made by using the contents of the description and drawings of the present invention under the inventive concept of the present invention, or Direct/indirect applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (12)

1. an inner bladder structure, is characterized in that, comprises: a plurality of inner bladders, and a plurality of said inner bladders are arranged in communication with each other; and, The anti-corrosion element is arranged in the at least two inner bladders, and is used for anti-corrosion protection for the at least two inner bladders. 2 . The inner pot structure according to claim 1 , wherein the anti-corrosion member comprises a plurality of first protection electrodes, and the plurality of the first protection electrodes are correspondingly arranged in the plurality of the inner pots; or , The anti-corrosion member includes at least one first protection electrode, and the first protection electrode is arranged through the at least two inner pots. 3. The inner pot structure according to claim 2, wherein the anti-corrosion member further comprises a plurality of second protection electrodes, and the plurality of the second protection electrodes are correspondingly arranged in the plurality of the inner pots; or, The anti-corrosion member further includes at least one second protection electrode, and the second protection electrode is arranged through the at least two inner pots. 4. The inner pot structure according to claim 3, wherein one of the first protection electrode and the second protection electrode is an electron anode, and the other is a sacrificial anode. 5. The liner structure according to claim 4, wherein the electronic anode comprises a titanium base material and an iridium-tantalum alloy coating coated on the outside of the titanium base material. 6. The inner container structure according to claim 5, wherein the diameter of the titanium base material is 0.5-30 mm; and/or, The thickness of the iridium-tantalum alloy coating is 1-30 μm; and/or, The length of the iridium-tantalum alloy coating is 3-100 cm. 7. The liner structure according to claim 4, wherein the material of the sacrificial anode comprises any one of magnesium, aluminum, zinc, magnesium alloy, aluminum alloy and zinc alloy. 8. The inner pot structure according to claim 7, wherein the material of the sacrificial anode is magnesium alloy AZ63B; and/or, The diameter of the sacrificial anode is 22 mm and the length is 305-400 mm. 9 . The inner container structure according to claim 4 , wherein the inner container structure further comprises a control device, and the control device is electrically connected with the electronic anode to control the output current of the electronic anode. 10 . 10. The inner pot structure according to claim 1, wherein the inner pot has opposite ends arranged along the length direction of the inner pot, and the inner pot structure further comprises a An end cap assembly at one end of the gallbladder, and the anti-corrosion element is provided on the end cap assembly. 11. The inner container structure of claim 10, wherein the end cap assembly comprises: a side end cap, which is covered on one end of the inner pot; and, a flange plate, arranged on the side of the side end cover away from the inner tank; Wherein, the anti-corrosion member is arranged on the side end cover, or the anti-corrosion member is arranged on the flange. 12. A water storage water heater, characterized in that it comprises the inner tank structure according to any one of claims 1 to 11.

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