CN109140759B

CN109140759B - Inner container for vertical water heater and water heater with inner container

Info

Publication number: CN109140759B
Application number: CN201710511992.8A
Authority: CN
Inventors: 马艳明; 孙强; 李�杰; 蔡想周; 刘海亭
Original assignee: Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2017-06-28
Filing date: 2017-06-28
Publication date: 2021-10-22
Anticipated expiration: 2037-06-28
Also published as: CN109140759A

Abstract

The invention relates to an inner container for a vertical water heater and a water heater with the inner container, belonging to the technical field of water heaters. The invention provides a liner for a vertical water heater, which comprises a barrel body and a sealing head, wherein the barrel body is formed by deep drawing, when the liner is welded with the sealing head in an arc structure, welding seams are ensured to be arranged at the bottommost part of an inner cavity of the liner and are in one welding seam, and the heating area of a heating rod is kept away, so that the corrosion caused by high-temperature water in the liner is avoided; the inner container provided by the invention can omit an anode bar for preventing the weld joint of the inner container from being corroded, thereby avoiding the condition that the water quality of the inner container is damaged due to the loss of the anode bar and providing clean water for users.

Description

Inner container for vertical water heater and water heater with inner container

Technical Field

The invention relates to the technical field of water heaters, in particular to an inner container for a vertical water heater and the water heater with the inner container.

Background

Vertical water heater products are enamel inner bags mostly in the existing market, and because of inner bag protection needs under the high temperature environment, all can increase the anode rod, and the anode rod is as pure consumables, and the impurity that the reaction produced can bring the destruction of inner bag quality of water, causes the dirty scheduling problem of effluent, especially products such as kitchen treasured of kitchen use, and the user is used for washing dishes mostly and washes dishes, and is extremely unhygienic, causes the user to complain.

The inner container of the vertical water heater in the prior art is manufactured in a welding mode, the heating rod penetrates into the inner container from one end of the inner container to heat water in the inner container, and the water near the heating rod is high-temperature water, so that a welding seam is positioned in a heating area of the heating rod, high-temperature corrosion is caused to the welding seam, and the use danger of the inner container is increased.

When welding the inner container commonly used in the prior art, there are two situations, as shown in fig. 1 and fig. 2, wherein the inner container structure provided in fig. 1 has a welding seam 10 above and below the inner container (both above and below refer to the upper and lower in fig. 1 and fig. 2); figure 2 provides a liner with a weld seam 10 at the middle of the liner. In the liner structure provided in fig. 1 and 2, the position of the weld seam 10 on the liner is in the heating area of the heating rod, and corrosion caused by high temperature in the liner cannot be avoided.

Disclosure of Invention

The invention aims to provide an inner container for a vertical water heater and a water heater with the inner container, which can solve the technical problem that in the prior art, a welding seam of the inner container is corroded at high temperature due to high-temperature water filled in the inner container.

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

the inner container for the vertical water heater comprises a deep-drawing formed barrel body with an opening at one end and an end socket in an arc-shaped structure, wherein the end socket is welded with the opening end of the barrel body to form a welding line.

Further, the arc of head sets up towards the open end of staving.

Furthermore, one side that the head is close to the staving is equipped with the flange, set firmly the heating rod base on the flange, set firmly the heating rod on the heating rod base.

Further, the heating rod comprises a first vertical rod, a second vertical rod and a spiral rod for connecting the first vertical rod and the second vertical rod;

the first vertical rod and the second vertical rod are fixedly connected to the heating rod base.

Furthermore, the first vertical rod and the second vertical rod are provided with a heating part and a non-heating part which is arranged close to the heating rod base.

Furthermore, heating wires are arranged on the heating part and the spiral rod.

Furthermore, the end socket is provided with a water inlet end between the first vertical rod and the second vertical rod, and the water inlet end penetrates through the heating rod base and is communicated with the barrel body.

Further, the barrel body and the end enclosure are both made of stainless steel.

In order to achieve the purpose, the invention also provides a water heater which comprises the liner for the vertical water heater.

Has the advantages that:

the invention provides a liner for a vertical water heater, which comprises a barrel body and a sealing head, wherein the barrel body is formed by deep drawing, when the liner is welded with the sealing head in an arc structure, welding seams are ensured to be arranged at the bottommost part of an inner cavity of the liner and are arranged in one group, a heating area of a heating rod is kept away, and corrosion caused by high-temperature water in the liner is avoided; the inner container provided by the invention can omit an anode bar for preventing the weld joint of the inner container from being corroded, thereby avoiding the condition that the water quality of the inner container is damaged due to the loss of the anode bar and providing clean water for users.

The invention also provides a water heater, which comprises the liner for the vertical water heater, wherein the welding seams between the barrel body of the liner for the vertical water heater and the end enclosure are only one, and the liner is positioned at the bottommost part of the inner cavity of the liner and is far away from the heating area of the heating rod, so that the number of the welding seams is reduced, and the corrosion caused by high-temperature water in the liner is avoided; the inner container for the vertical water heater can save an anode bar for preventing the weld joint of the inner container from being corroded, thereby avoiding the condition that the water quality of the inner container is damaged due to the loss of the anode bar and providing clean water for users.

Drawings

FIG. 1 is a schematic view of a prior art water heater bladder;

FIG. 2 is another schematic view of a prior art water heater liner;

FIG. 3 is a schematic view of the arc structure of the end socket of the inner container for the vertical water heater provided by the invention deviating from the inlet end of the barrel body;

FIG. 4 is a schematic view of the arc structure of the end socket of the inner container for the vertical water heater provided by the invention facing the inlet end of the barrel body;

FIG. 5 is a sectional view of the bladder structure for the vertical water heater provided in FIG. 4;

FIG. 6 is a sectional view showing the inner structure of the inner tub for the vertical water heater provided in FIG. 4;

FIG. 7 is a schematic structural view of a heating rod of the inner container for the vertical water heater provided by the invention;

fig. 8 is a bar graph of the times of normal use of ten samples taken according to the invention.

In the figure:

10. welding seams;

1. a barrel body; 11. an open end; 2. sealing the end; 21. a flange; 3. a heating rod base; 4. a heating rod; 41. A first vertical bar; 43. A helical rod; 8. A water inlet end.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

The embodiment provides an inner container for a vertical water heater, which is suitable for the vertical water heater, and as shown in fig. 3-7, the inner container comprises a deep-drawing formed barrel body 1 with an opening at one end and an arc-shaped end enclosure 2, wherein the end enclosure 2 is welded with an opening end 11 of the barrel body 1 to form a welding seam 10.

The inner container for the vertical water heater comprises the barrel body 1 and the end sockets 2, the barrel body 1 is formed by deep drawing, when the inner container is matched with the end sockets 2 of an arc-shaped structure for welding, a welding line 10 is ensured to be arranged at the bottommost part of the inner cavity of the inner container, the number of the welding line is one, the welding line 10 is far away from a heating area of the heating rod 4, and therefore corrosion caused by high-temperature water in the inner container is avoided; because the inner bag that this embodiment provided can save the positive pole stick that prevents the corruption of the welding seam 10 of inner bag to avoided making inner bag quality of water to cause the condition of destruction because the loss of positive pole stick, can provide clean water for the user.

Wherein, the arc of head 2 sets up towards open end 11 of staving 1. In this embodiment, when the sealing head 2 is welded to the barrel body 1, the arc structure of the sealing head 2 may deviate from or face the opening end 11 of the barrel body 1, and fig. 3 and 4 are schematic structural diagrams of the arc structure of the sealing head 2 of the inner container deviating from and facing the opening end 11 of the barrel body 1, respectively. Through repeated tests, the arc-shaped structure of the seal head 2 faces towards the opening end 11 of the barrel body 1, so that the seal head is less prone to high-temperature corrosion. Therefore, as a preferable scheme, the arc-shaped structure of the end socket 2 is arranged towards the opening end 11 of the barrel body 1.

As shown in fig. 5 and 6, a flange 21 is arranged on one side of the sealing head 2 close to the barrel body 1, a heating rod base 3 is fixedly arranged on the flange 21, and a heating rod 4 is fixedly arranged on the heating rod base 3. The heating rod 4 comprises a first vertical rod 41, a second vertical rod 42 and a spiral rod 43 connecting the first vertical rod 41 and the second vertical rod 42; the first vertical rod 41 and the second vertical rod 42 are both fixedly connected to the heating rod base 3. The first vertical rod 41 and the second vertical rod 42 are both provided with a heating part and a non-heating part arranged close to the heating rod base 3. In this embodiment, the heating rod 4 is provided with the non-heating part close to the sealing head 2, so that the heating part is far away from the welding seam 10, and the heating rod 4 and the welding seam 10 of the barrel body 1 are positioned at the bottommost part of the inner cavity of the inner container, so that the heating area of the heating rod 4 is far away from, and high-temperature corrosion to the welding seam 10 of the sealing head 2 and the barrel body 1 caused by high temperature generated by heating the heating rod 4 is avoided.

Heating portion and spiral rod 43 are last all to be equipped with the heater strip, and this embodiment is through setting up the heater strip and keeping away from on heating portion and the spiral rod 43 of head 2, make welding seam 10 keep away from the high temperature zone in the inner bag to the corruption that welding seam 10 received high temperature to bring has been avoided.

As shown in fig. 7, a water inlet end 8 located between the first vertical rod 41 and the second vertical rod is arranged on the sealing head 2, and the water inlet end 8 penetrates through the heating rod base 3 and is communicated with the barrel body 1. In this embodiment, the water inlet end 8 is arranged on the seal head 2, cold water enters the inner cavity of the inner container through the water inlet end 8, the weld joint 10 is surrounded by the cold water continuously filled into the barrel body 1 because the weld joint 10 is located at the bottommost part of the inner cavity of the inner container, and the cold water filled through the water inlet end 8 is continuously mixed with warm water around the weld joint 10, so that the water temperature around the weld joint 10 is continuously cooled, water around the weld joint 10 is ensured to be in the environment of the cold water or the warm water, and the weld joint 10 is prevented from being corroded by high temperature.

Staving 1 with head 2 is made by the stainless steel, and this embodiment is through making staving 1 and head 2 by the stainless steel for the corrosion resistance of inner bag is strong, can save the protection of anode bar, provides clean water for the user.

The embodiment also provides a water heater, the water heater comprises the liner for the vertical water heater, wherein the water heater provided by the embodiment is a vertical water heater. The welding seams 10 between the barrel body 1 of the inner container and the end enclosure 2 are only one, so that the number of the welding seams 10 is reduced, the heating area of the heating rod 4 is far away, and the corrosion caused by high-temperature water in the inner container is avoided; because the inner container can omit the anode rod for preventing the welding seam 10 of the inner container from being corroded, the condition that the water quality of the inner container is damaged due to the loss of the anode rod is avoided, and clean water can be provided for a user.

The embodiment aims at the structure of the liner of the prior vertical water heater, such as the liner structure provided in figures 1 and 2, and the structure of the liner provided by this embodiment, as shown in fig. 3 and 4, ten qualified samples were selected, the same test environment and the same solution were used for the heating test, and the time of the sample showing corrosion and water leakage is recorded, as shown in FIG. 8, wherein, the ordinate represents the time of the liner from the beginning of the experiment to the appearance of corrosion and water leakage, i.e., the time of normal use (in days), the abscissa represents the ten groups of samples sampled and the average time of normal use for each type of sample, wherein the four bar structures of each set of sampled samples represent the number of days of normal use of the four structures provided in figures 1, 2, 3 and 4, respectively, and the four bar structures of each set of samples represent the average number of days of normal use of the ten samples of the four structures provided in figures 1, 2, 3 and 4.

As can be seen from FIG. 8, the normal use time of the structure of the liner provided in FIG. I is shortest, the normal use time of the structure of the liner provided in FIG. 3 is slightly longer than that of the structures in FIGS. 1 and 2, and the normal use time of the structure of the end socket 2 in FIG. 4 is longest towards the open end 11 of the barrel body 1.

It is noted that the foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. The inner container for the vertical water heater is characterized by comprising a deep-drawing formed barrel body (1) with an opening at one end and an end enclosure (2) in an arc-shaped structure, wherein the end enclosure (2) is welded with an opening end (11) of the barrel body (1) to form a welding line (10), the arc of the end enclosure (2) is arranged towards the opening end (11) of the barrel body (1), a flange (21) is arranged on one side, close to the barrel body (1), of the end enclosure (2), a heating rod base (3) is fixedly arranged on the flange (21), and a heating rod (4) is fixedly arranged on the heating rod base (3);

the heating rod (4) comprises a first vertical rod (41), a second vertical rod (42) and a spiral rod (43) for connecting the first vertical rod (41) and the second vertical rod, and the first vertical rod (41) and the second vertical rod are fixedly connected to the heating rod base (3);

the first vertical rod (41) and the second vertical rod are both provided with a heating part and a non-heating part which is arranged close to the heating rod base (3).

2. The inner tank for the vertical water heater according to claim 1, wherein the heating part and the spiral rod (43) are provided with heating wires.

3. The liner for the vertical water heater according to claim 1, wherein the end socket (2) is provided with a water inlet end (8) located between the first vertical rod (41) and the second vertical rod, and the water inlet end (8) penetrates through the heating rod base (3) and is communicated with the barrel body (1).

4. The liner for the vertical water heater according to any one of claims 1-3, wherein the barrel body (1) and the end enclosure (2) are made of stainless steel.

5. A water heater comprising the liner for a vertical water heater as claimed in any one of claims 1 to 4.