CN211019275U

CN211019275U - Electric heating element of commercial water heater

Info

Publication number: CN211019275U
Application number: CN201922005493.9U
Authority: CN
Inventors: 陈金红; 刘欢
Original assignee: Billow Suzhou Water Heaters Corp
Current assignee: Billow Suzhou Water Heaters Corp
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-07-14
Anticipated expiration: 2029-11-19

Abstract

The utility model provides a commercial water heater electric heating element relates to water heater technical field, including at least one electrothermal tube, the electrothermal tube is including the body that is used for heat transfer, be used for heat-producing resistance wire, be used for the flange of fixed body, be used for electrically conductive conducting rod and be used for the lug of wiring, the resistance wire is connected with the conducting rod, the conducting rod with the lug is connected, the resistance wire hangs empty ground and follows body length direction extends, the conducting rod is located the tip region of body inner chamber, the lug is located the outside of body tip, the fixed cover of flange is located the tip region of body periphery, the body is made by Incoloy825 material. Through adopting the utility model provides a technical scheme has improved commercial electric water heater electric heating element's life by a wide margin, has effectively reduced commercial water heater's use cost.

Description

Electric heating element of commercial water heater

Technical Field

The utility model relates to a water heater technical field, in particular to commercial water heater electric heating element.

Background

Commercial electric water heaters usually adopt electric heating elements for heating, and the existing electric heating elements, although various, can not meet the following requirements: under the condition of a severe use environment, for example, the water quality of some regions is complicated, such as groundwater in a mining area, contains a large amount of sulfide, chloride ions and calcium carbonate impurities, and a large amount of scale or other impurities are usually accumulated on the surface of an electric heating element of a commercial water heater working in the environment in a short time, so that the heat dissipation effect of the electric heating element is poor, and further the electric heating element is damaged. Because the service life of the existing electric heating element is extremely short, the electric heating element is frequently damaged, and even the electric heating element needs to be replaced for several days, the use cost of the commercial water heater is greatly increased, and the replacement needs professional technicians to process the electric heating element, so that the labor cost is also greatly increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a commercial water heater electric heating element, improved commercial electric water heater electric heating element's life by a wide margin, effectively reduced commercial water heater's use cost.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a commercial water heater electric heating element, including at least one electrothermal tube, the electrothermal tube is including the body that is used for heat transfer, be used for heat-generating resistance wire, be used for the flange of fixed body, be used for electrically conductive conducting rod and be used for the lug of wiring, the resistance wire is connected with the conducting rod, the conducting rod with the lug is connected, the resistance wire hangs the ground and follows body length direction extends, the conducting rod is located the tip region of body inner chamber, the lug is located the outside of body tip, the fixed cover of flange is located the tip region of body periphery, the body is made by Incoloy825 material.

Further, the electrothermal tube is U-shaped.

Further, the number of the electric heating tubes is 3.

Furthermore, the electric heating tube heating device is also provided with support frames for supporting the electric heating tubes, and the number of the support frames is not less than 1.

Further, the inner cavity of the tube body is filled with magnesium powder.

Further, the purity of the magnesium powder is not less than 90%.

Furthermore, the flange is provided with a flange hole for fixing the electric heating element of the commercial water heater.

Further, the flange is rectangular.

Compared with the prior art, the utility model provides a technical scheme has following advantage and beneficial effect: the utility model provides a commercial water heater electric heating element, including at least one electrothermal tube, the electrothermal tube is including the body that is used for heat transfer, be used for heat-generating resistance wire, be used for the flange of fixed body, be used for electrically conductive conducting rod and be used for the lug of wiring, the resistance wire is connected with the conducting rod, the conducting rod with the lug is connected, the resistance wire hangs the ground and follows body length direction extends, the conducting rod is located the tip region of body inner chamber, the lug is located the outside of body tip, the fixed cover of flange is located the tip region of body periphery, the body is made by Incoloy825 material. Through the technical scheme provided by the utility model, improved commercial electric water heater electric heating element's life by a wide margin, effectively reduced commercial water heater's use cost.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of the structure of an electric heating element of a commercial water heater in an embodiment;

FIG. 2 is a schematic view of an embodiment of an electrical heating tube;

fig. 3 is a right side view of fig. 1.

In the figure: 100-commercial water heater electrical heating element; 10-electric heating tubes; 1-a pipe body; 2-resistance wire; 3-a flange; 4-a conductive rod; 5-a lug plate; 6-a support frame; 7-flange hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "mounted" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1 to 3, the present embodiment provides an electric heating element 100 for a commercial water heater, which includes at least one electric heating tube 10, where the electric heating tube includes a tube body 1 for heat transfer, a resistance wire 2 for heat generation, a flange 3 for fixing the tube body, a conductive rod 4 for electric conduction, and a lug 5 for wiring, the resistance wire 2 is connected to the conductive rod 4, the conductive rod 4 is connected to the lug 5, the resistance wire 2 extends along the length direction of the tube body 1 in a suspended manner, the conductive rod 4 is disposed in an end region of an inner cavity of the tube body 1, the lug 5 is disposed outside an end portion of the tube body 1, the flange 3 is fixedly sleeved in the end region of the outer periphery of the tube body 1, and the tube body 1 is made of Incoloy825 material.

The connection mode of the resistance wire 2 and the conducting rod 4 is preferably welding, and other connection modes can be adopted; the conductive rod 4 and the lug 5 are preferably connected by welding, but may be connected by other methods.

The Incoloy825 material is a full-austenite nickel-iron-chromium alloy subjected to metal titanium stabilization treatment, and has good stress corrosion cracking resistance, pitting corrosion resistance and crevice corrosion resistance, and good oxidation resistance and good mechanical properties due to the addition of copper and molybdenum elements. By body 1 of Incoloy825 material preparation, can produce small inflation when body 1 is heated, resume to original form when being in the normal atmospheric temperature, body 1 warp through small thermal expansion, can in time handle the incrustation scale and other magazines that cover on body 1 surface, avoid body 1 surface to cover a large amount of incrustations scales and other magazines, and then lead to body 1 heat dissipation inequality to cause electric heating element to damage, extension electric heating element practical life, reduce commercial water heater electric heating element's use cost and maintenance cost.

Resistance wire 2 is preferred to be set up in 1 inner chamber central line position of body, and the life that electric heating element can further be improved to above-mentioned setting, reduces commercial water heater's use cost, promotes user experience.

In this embodiment, the electric heating tube 10 is U-shaped, and may be made into other shapes as required.

In this embodiment, the number of the electric heating tubes 10 is 3.

In the embodiment, a support frame 6 for supporting the electrothermal tube 10 is further provided, and the number of the support frames 6 is not less than 1. According to actual needs, the supporting frame 6 can be provided with a plurality of supporting frames, and the number of the supporting frames 6 in the embodiment is 2.

When the pipe body 1 is heated and expanded, the support frame 6 can ensure the relative stability of the relative positions between the pipe bodies 1, and ensure that the policy operation of the commercial water heater is not influenced due to the thermal expansion of the pipe bodies 1; in addition, for the unexpected condition that electric heating element appears, for example explode open, support frame 6 can play the effect of drawing in body 1 in, and the user of being convenient for dismantles electric heating element.

In this embodiment, the magnesium powder is filled in the inner cavity of the tube body 1.

In this embodiment, the purity of the magnesium powder is not less than 90%, preferably 99.9%, and the high-degree magnesium powder has a better heat transfer effect, and improves the working efficiency of the electric heating element.

In this embodiment, the flange 3 is provided with a flange hole 7 for fixing the electric heating element of the commercial water heater.

In this embodiment, the flange 3 is rectangular, and may be set to other shapes according to actual use requirements.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The electric heating element of the commercial water heater is characterized by comprising at least one electric heating tube, wherein the electric heating tube comprises a heat transfer tube body, a resistance wire for generating heat, a flange for fixing the tube body, a conductive rod for conducting electricity and a wiring lug for wiring, the resistance wire is connected with the conductive rod, the conductive rod is connected with the wiring lug, the resistance wire extends in the length direction of the tube body in a suspended mode, the conductive rod is arranged in the end portion area of an inner cavity of the tube body, the wiring lug is arranged outside the end portion of the tube body, the flange is fixedly arranged in the end portion area of the periphery of the tube body, and the tube body is made of Incoloy825 materials.

2. A commercial water heater heating element as in claim 1, wherein said electrical heating tube is U-shaped.

3. A commercial water heater heating element as in claim 2, wherein the number of said electric heating tubes is 3.

4. A commercial water heater electric heating element according to claim 3, further provided with a support frame for supporting said electric heating tube, the number of said support frames being not less than 1.

5. A commercial water heater heating element as in claim 1, wherein the tube cavity is filled with magnesium powder.

6. A commercial water heater heating element as in claim 5, wherein the purity of the magnesium powder is no less than 90%.

7. A commercial water heater heating element as in claim 1, wherein said flange defines flange holes for securing said commercial water heater heating element.

8. A commercial water heater heating element as in claim 1, wherein the flange is rectangular.