CN215412490U

CN215412490U - Electric water boiler capable of overflowing at normal pressure

Info

Publication number: CN215412490U
Application number: CN202120292928.7U
Authority: CN
Inventors: 宋岩峰; 李维
Original assignee: Beijing Terasolar Energy Technologies Co ltd
Current assignee: Beijing Terasolar Energy Technologies Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-01-04
Anticipated expiration: 2031-02-02

Abstract

The embodiment of the utility model discloses an electric water boiler overflowing at normal pressure, which comprises an electric control cabinet and an electric heating furnace body and is characterized in that an electric heating element is arranged in the furnace body, and the electric heating element comprises a plurality of rows of electric heating element units arranged in an array mode along the water flow direction; the water inlet of the electric water boiler is a cold water inlet and is arranged at the bottom of the electric water boiler; the water outlet is a hot water outlet and is arranged at the top of the electric water boiler; cold water is supplemented into the cold water medium from a water inlet at the bottom, and hot water overflows from a water outlet at the top under normal pressure; and water distributors are respectively arranged at the water inlet and the water outlet in the furnace body. The utility model improves the density of the electric heating element in the electric water heating boiler, the heating is more uniform, the water flow is more stable and uniform, the electric heating boiler has small volume and higher electric heating efficiency.

Description

Electric water boiler capable of overflowing at normal pressure

Technical Field

The utility model relates to the technical field of electric water boilers, in particular to an electric water boiler overflowing at normal pressure.

Background

At present, limited by atmospheric pollution treatment and insufficient natural gas resources, electric heating is widely popularized by governments, and a clean, safe and environment-friendly electric heating mode is used for replacing backward coal heating.

However, the traditional electric boiler still has the defects of large volume and large occupied area, and the phenomena of supercooling boiling, local overheating and the like are difficult to avoid in the operation process. The water hammer caused by the vibration can damage main elements such as an electric heater and the like, scale formation can be aggravated, thermal resistance is increased, and the service life of the heating pipe is seriously shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an electric water boiler which has small volume and high efficiency and can avoid supercooling boiling.

The utility model provides an electric water boiler overflowing at normal pressure, which comprises an electric control cabinet and an electric heating furnace body and is characterized in that an electric heating element is arranged in the furnace body, and the electric heating element comprises a plurality of rows of electric heating element units arranged in an array mode along the water flow direction; the water inlet of the electric water boiler is a cold water inlet and is arranged at the bottom of the electric water boiler; the water outlet is a hot water outlet and is arranged at the top of the electric water boiler; cold water is supplemented into the cold water medium from a water inlet at the bottom, and hot water overflows from a water outlet at the top under normal pressure; and water distributors are respectively arranged at the water inlet and the water outlet in the furnace body.

Furthermore, the water distribution port of the water distributor faces back to the water flow direction in the furnace, faces the furnace wall and forms a certain distance with the furnace wall.

Further, a partition plate is arranged between the adjacent electric heating element units, and a gap is reserved at one end of the partition plate.

Further, the electric heating element unit is composed of a plurality of electric heating pipes in combination.

Furthermore, the gaps of the adjacent partition plates are arranged in a staggered manner at the furnace walls at two opposite ends of the furnace body, so that water flow forms a snake-shaped flow channel in the furnace.

Preferably, the water inlet and the water outlet in the furnace body are respectively provided with a guide plate.

Preferably, the electric heating pipe is a U-shaped electric heating pipe.

According to the technical scheme, the water distributors are arranged at the inlet and the outlet of the electric boiler, so that water flowing into the electric boiler is more uniform, and compared with the traditional boiler, the electric boiler is higher in density and more uniform in arrangement of the arranged electric heating devices, and better heating efficiency is achieved; the partition plates arranged among the electric heating elements can well play a role in guiding a path, and through the structure, water can flow according to a certain path, the electric heating elements in the furnace body can be completely covered in the flowing process, so that the heating area of the electric heating elements is more fully utilized, the heating efficiency of the electric boiler is improved, and various problems caused by uneven heating are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a horizontal structure of an atmospheric overflow electric water boiler according to the present application;

FIG. 2 is a schematic vertical structure of an atmospheric overflow electric water boiler according to the present application;

FIG. 3 is a schematic structural view of an electrical heating element of the present application;

fig. 4 is a schematic view showing the direction of water flow in the electric hot water boiler according to the present application.

In the figure:

1 is a water distributor, 2 is an electric heating element unit, 3 and 4 are adjacent partition boards, 5 is a guide plate, 6 is an electric heating pipe, and 7 is an electric heating furnace body

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 a part of the embodiments of the present invention, and not all of the embodiments. 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.

At present, the electric water boiler in China still has the problems of large volume, large floor area, low electric heating efficiency, difficult avoidance of supercooling boiling, local overheating and the like in the operation process, and the problems seriously restrict the application universality and the service life permanence of the electric water boiler.

In order to achieve the purpose, the application provides an electric water boiler with normal-pressure overflow.

Fig. 1 and fig. 2 are schematic diagrams of horizontal and vertical structures of the atmospheric overflow electric water boiler. As shown in fig. 1 and 2, the electric water heating boiler related in the present application comprises an electric control cabinet and an electric heating furnace body 7, and is characterized in that an electric heating element is arranged in the furnace body, and the electric heating element comprises a plurality of rows of electric heating element units 2 arranged in an array along the water flow direction; the electric heating element unit 2 is composed of a plurality of electric heating tubes 6 in combination. The electric heating element is arranged in such a way that the heating density is higher and the heating power is more uniformly dispersed. The electric heating tube 6 may be a U-shaped tube, a straight tube, or a spiral tube, and is preferably an electric heating tube with a U-shaped structure, and the specific structure is shown in fig. 3, and the specific form of the electric heating tube 6 is not limited in the present invention. The water inlet of the electric water boiler is a cold water inlet and is arranged at the bottom of the electric water boiler; the water outlet is a hot water outlet and is arranged at the top of the electric water boiler; cold water is supplemented into the cold water medium from a water inlet at the bottom, and hot water overflows from a water outlet at the top under normal pressure; the water distributor 1 is respectively arranged at the water inlet and the water outlet in the furnace body, so that the water flow is more uniform and stable.

A

partition plate

3 or 4 is arranged between the electric heating element unit units which are adjacently arranged, and one end of the

partition plate

3 or 4 is provided with a gap. The clapboard is fixedly connected with the furnace wall in a fixing mode such as welding. Preferably, the gaps of the adjacent partition plates are arranged in a staggered manner at the furnace walls at two opposite ends of the furnace body, the arrangement form can be the arrangement form of the partition plates 3 and the partition plates 4 shown in fig. 1, fig. 2 and fig. 4, the structure is only a preferred arrangement form of the partition plates, the partition plates can also be in direct contact with the inner wall of the furnace body, the gaps at the ends of the partition plates can be holes, the hole sites of the adjacent partition plates are arranged in a staggered manner at the furnace walls at two opposite ends of the furnace body, and the two structure forms can both play a role in setting a water flow path, so that water flow forms a serpentine flow channel in the furnace.

It should be noted that the above two arrangements are only preferred forms of the baffle arrangement, and the baffle arrangement with staggered notches at the ends falls within the scope of the present invention.

Specifically, when the electric water boiler is operated, cold water enters the electric water boiler from a cold water inlet and flows through the water distributor 1 arranged at the beginning of the serpentine channel, water flow is more uniform under the action of the water distributor 1, further, under the action of the guide plate 5, the path of the water flow is guided by the

partition plates

3 and 4 to travel according to the path of the dotted line in fig. 4, in the traveling process, each electric heating element unit 2 is uniformly covered, the electric heating element units 2 heat the flowing water, the temperature of the water is gradually increased, and finally, under the action of the guide plate 5 at the hot water outlet, the heated hot water is output after passing through the water distributor 1 arranged at the tail end of the serpentine channel.

In the embodiment, the water distributors are arranged at the inlet and the outlet of the electric boiler, so that water flowing into the electric boiler is more uniform, and compared with the traditional boiler, the distributed electric heating devices have higher density and are more uniform in distribution, so that better heating efficiency is achieved; the partition plates arranged among the electric heating elements can well play a role in guiding a path, and through the structure, water can flow according to a certain path, the electric heating elements in the furnace body can be completely covered in the flowing process, so that the heating area of the electric heating elements is more fully utilized, the heating efficiency of the electric boiler is improved, and various problems caused by uneven electric heating are solved.

It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. An electric water boiler overflowing at normal pressure comprises an electric control cabinet and an electric heating furnace body, and is characterized in that electric heating elements are arranged in the furnace body, and each electric heating element comprises a plurality of rows of electric heating element units arranged in an array mode along the water flow direction; the water inlet of the electric water boiler is a cold water inlet and is arranged at the bottom of the electric water boiler; the water outlet is a hot water outlet and is arranged at the top of the electric water boiler; cold water is supplemented into the cold water medium from a water inlet at the bottom, and hot water overflows from a water outlet at the top under normal pressure; and water distributors are respectively arranged at the water inlet and the water outlet in the furnace body.

2. An atmospheric overflow electric boiler as defined in claim 1, wherein the water distribution ports of said water distributor face away from the direction of water flow in the boiler, and are directed toward the boiler wall and spaced from the boiler wall.

3. An atmospheric-pressure-overflow electric water boiler in accordance with claim 1, wherein a partition is disposed between the adjacent electric heating element units, and a gap is left at one end of the partition.

4. An atmospheric-pressure-overflow electric water-heating boiler in accordance with claim 3, wherein the gaps of the adjacent partitions are staggered at the furnace walls at opposite ends of the boiler body, so that the water flow forms a serpentine flow path in the boiler.

5. The atmospheric-pressure overflow electric water boiler as claimed in claim 1, wherein the water inlet and outlet of the furnace body are respectively provided with a deflector.

6. An atmospheric-pressure-overflow electric water boiler in accordance with claim 1, wherein said electric heating element unit is constituted by a combination of a plurality of electric heating tubes.

7. An atmospheric-pressure-overflow electric water-heating boiler in accordance with claim 6, wherein said electric heating pipe is a U-shaped pipe, a straight pipe or a spiral pipe.