CN210157399U

CN210157399U - Explosion-proof electric heater capable of uniformly heating

Info

Publication number: CN210157399U
Application number: CN201920534368.4U
Authority: CN
Inventors: 陈亮
Original assignee: Yangzhong Xianglong Electrical Appliance Co Ltd
Current assignee: Yangzhong Xianglong Electrical Appliance Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-03-17
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses an explosion-proof electric heater of even heating, including the flange, the terminal box and the heating pipe array that constitutes by a plurality of U type heating pipes, be provided with a N power connection on the terminal box, the wiring end of all U type heating pipes passes flange embedding terminal box, the heating pipe array includes a plurality of non-central heating pipe arrays, U type heating pipe along the circumference distribution in the non-central heating pipe array, all non-central heating pipe array concentric circles distribute, U type heating pipe quantity in the non-central heating pipe array is the multiple of N, U type heating pipe in the non-central heating pipe array falls into N group, a power connection is connected to every group, the U type heating pipe evenly distributed of every group is on the circumference. The utility model discloses abandoned traditional centralized distribution, even a set of heater does not generate heat, also can guarantee that whole heater generates heat evenly.

Description

Explosion-proof electric heater capable of uniformly heating

Technical Field

The utility model relates to an explosion-proof electric heater of even heating belongs to the electric heater field.

Background

As shown in fig. 1 and 2, in a conventional explosion-proof electric heater, heating tubes of the heater are generally divided into a plurality of groups, and the group is divided into three groups (an upper two group, a middle two group, and a lower two group), each group is connected to a power supply, and the heating tubes of the same group are generally concentrated together.

SUMMERY OF THE UTILITY MODEL

The utility model provides an explosion-proof electric heater of even heating has solved the above-mentioned problem that traditional electric heater exists.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides an explosion-proof electric heater of even heating, which comprises a flange, the terminal box and the heating pipe array that constitutes by a plurality of U type heating pipes, be provided with a N power connection on the terminal box, the wiring end of all U type heating pipes passes flange embedding terminal box, the heating pipe array includes a plurality of non-central heating pipe arrays, U type heating pipe along the circumference distribution in the non-central heating pipe array, all non-central heating pipe arrays distribute with a heart circle, U type heating pipe quantity in the non-central heating pipe array is the multiple of N, U type heating pipe in the non-central heating pipe array falls into N group, a power connection is connected to every group, U type heating pipe evenly distributed of every group is on the circumference.

The heating pipe array further comprises a central heating pipe array, the central heating pipe array is located at the center of the whole heating pipe array, the central heating pipe array comprises N U-shaped heating pipes, the N U-shaped heating pipes in the central heating pipe array are respectively connected with N power connectors, the symmetry lines of the N U-shaped heating pipes in the central heating pipe array are located on the same straight line, and the included angle between every two adjacent U-shaped heating pipes in the central heating pipe array is equal.

A distance is left between the junction box and the flange.

The junction box is provided with an air inlet and an air outlet, and the air inlet is externally connected with a blower device.

A temperature control switch is arranged in the junction box and controls the starting and stopping of the air blowing equipment.

N=3。

The utility model discloses the beneficial effect who reaches: the utility model discloses abandoned traditional centralized distribution, divided into N group with the U type heating pipe in the non-central heating pipe array, every group connects a power connection, and the U type heating pipe evenly distributed of every group is on the circumference, even a set of heater does not generate heat, also can guarantee that whole heater generates heat evenly.

Drawings

FIG. 1 is a schematic structural view of a conventional explosion-proof electric heater;

FIG. 2 is a block diagram of a conventional centralized distribution;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic view of a heating tube array;

fig. 5 is a schematic structural view of the junction box.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 3, 4 and 5, an explosion-proof electric heater with uniform heating comprises a flange 2, a junction box 1 and a heating pipe array composed of a plurality of U-shaped heating pipes 3.

The junction box 1 is provided with N power connectors 6, N =3, the junction box 1 is provided with an air inlet 8 and an air outlet 9, the air inlet 8 is externally connected with a blower device, the junction box 1 is internally provided with a temperature control switch 7, and the temperature control switch 7 controls the start and stop of the blower device (which is a common existing structure and is not described in detail here).

The terminals of all U-shaped heating pipes 3 penetrate through the flange 2 and are embedded into the junction box 1, and the heating pipe arrays comprise a central heating pipe array 5 and a plurality of non-central heating pipe arrays 4. U-shaped heating pipes 3 in the non-central heating pipe array 4 are distributed along the circumference, all the non-central heating pipe arrays 4 are distributed in a concentric circle mode, the number of the U-shaped heating pipes 3 in the non-central heating pipe arrays 4 is multiple of N, the U-shaped heating pipes 3 in the non-central heating pipe arrays 4 are divided into N groups, each group is connected with a power supply connector 6, and the U-shaped heating pipes 3 of each group are uniformly distributed on the circumference. The central heating pipe array 5 is located at the center of the whole heating pipe array, the central heating pipe array 5 comprises N U-shaped heating pipes 3, the N U-shaped heating pipes 3 in the central heating pipe array 5 are respectively connected with N power connectors 6, the symmetry lines of the N U-shaped heating pipes 3 in the central heating pipe array 5 are located on the same straight line, and the included angle between every two adjacent U-shaped heating pipes 3 in the central heating pipe array 5 is equal.

The electric heater abandons the traditional centralized distribution, the U-shaped heating pipes 3 in the non-central heating pipe array 4 are divided into N groups, each group is connected with a power supply connector 6, the U-shaped heating pipes 3 of each group are uniformly distributed on the circumference, N U-shaped heating pipes 3 in the central heating pipe array 5 are respectively connected with N power supply connectors 6, and even if a group of heaters do not generate heat, the whole heater can be ensured to generate heat uniformly.

Leave the distance between terminal box 1 and the flange 2, this section distance is decided according to the condition of generating heat of U type heating pipe 3, and this section is the heat dissipation section, avoids the heat influence wiring end that U type heating pipe 3 gived off, can abandon traditional heat insulating mattress through this section, has not only saved the cost, and the radiating effect is good simultaneously.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof electric heater of even heating which characterized in that: including the flange, terminal box and the heating pipe array that constitutes by a plurality of U type heating pipes, be provided with a N power connection on the terminal box, the wiring end of all U type heating pipes passes flange embedding terminal box, the heating pipe array includes a plurality of non-central heating pipe arrays, U type heating pipe in the non-central heating pipe array distributes along the circumference, all non-central heating pipe array concentric circles distribute, U type heating pipe quantity in the non-central heating pipe array is the multiple of N, U type heating pipe in the non-central heating pipe array falls into N group, a power connection is connected to every group, U type heating pipe evenly distributed of every group is on the circumference.

2. A uniformly heated explosion-proof electric heater as set forth in claim 1, wherein: the heating pipe array further comprises a central heating pipe array, the central heating pipe array is located at the center of the whole heating pipe array, the central heating pipe array comprises N U-shaped heating pipes, the N U-shaped heating pipes in the central heating pipe array are respectively connected with N power connectors, the symmetry lines of the N U-shaped heating pipes in the central heating pipe array are located on the same straight line, and the included angle between every two adjacent U-shaped heating pipes in the central heating pipe array is equal.

3. A uniformly heated explosion-proof electric heater as set forth in claim 1, wherein: a distance is left between the junction box and the flange.

4. A uniformly heated explosion-proof electric heater as set forth in claim 1, wherein: the junction box is provided with an air inlet and an air outlet, and the air inlet is externally connected with a blower device.

5. An explosion-proof electric heater with uniform heating according to claim 4, wherein: a temperature control switch is arranged in the junction box and controls the starting and stopping of the air blowing equipment.

6. A uniformly heated explosion-proof electric heater as set forth in claim 1, wherein: n = 3.