Electric heating element and pipeline electric heater

A technology of electric heating element and resistance wire, which is applied in the direction of pipeline heating/cooling, heating element shape, pipe/pipe joint/pipe fitting, etc., which can solve the problems of small effective density of electric heating element, complex structure of electric heating pipe, and large occupied space, etc. Achieve the effects of increasing effective density and heating power, compact structure, and small space occupation

Inactive Publication Date: 2012-12-05
ZHENJIANG WSK ELECTRICAL APPLIANCES
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AI Technical Summary

Problems solved by technology

[0002] In the traditional pipeline electric heater, the electric heating element usually adopts the electric heating tube, because the structure of the electric heating tube itself is relatively complicated, not only the manufacturing cost is high, but also the space occupied by it is relatively large, and the effective density of the electric heating element is correspondingly small; at the same time Because the electric heating tube is limited by its shell material, size and surface load parameters, it is difficult to achieve a large heating power in a small space

Method used

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  • Electric heating element and pipeline electric heater
  • Electric heating element and pipeline electric heater
  • Electric heating element and pipeline electric heater

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Embodiment Construction

[0012] Such as figure 1 , figure 2 As shown, the electric heating element 1 includes a cylindrical base 11 made of refractory material, longitudinal installation grooves 12 are uniformly distributed on the outer cylindrical surface of the base, and a spiral resistance wire 13 is reciprocally placed in each installation groove 12 Inside, lead-out electrodes are set at both ends of the resistance wire. The base body 11 is composed of a multi-section cylindrical base body unit 111. A piercing hole 112 is provided in the center of the base body unit. A piercing bolt 113 passes through the piercing hole to connect each base body unit into a coaxial whole.

[0013] Such as image 3 , Figure 4 As shown, the pipeline electric heater includes a tubular shell 2, the two ends of the shell are provided with connecting flanges for connecting with the pipeline, and a plurality of the above-mentioned electric heating elements 1 are axially arranged in the shell; each electric heating el...

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Abstract

The invention relates to an electric heating device and particularly relates to an electric heating element for heating gas flowing in a pipeline and a pipeline electric heater adopting the electric heating element. The electric heating element comprises a cylindrical base body which is manufactured by a fireproof material; vertical mounting grooves are uniformly distributed on the outer cylindrical face of the base body; a spiral resistance wire is placed in each mounting groove in a reciprocated manner; and extraction electrodes are arranged at the two ends of each resistance wire. According to the electric heating element disclosed by the invention, the resistance wires are highly-densely distributed on the vertical mounting grooves on the outer cylindrical face of the base body; the structure is compact and the occupied space is small; and the effective density and the heating power of the heating elements of the pipeline electric heater are effectively improved.

Description

technical field [0001] The invention relates to an electric heating device, in particular to an electric heating element for heating gas flowing in a pipeline and a pipeline electric heater using the electric heating element. Background technique [0002] In the traditional pipeline electric heater, the electric heating element usually adopts the electric heating tube, because the structure of the electric heating tube itself is relatively complicated, not only the manufacturing cost is high, but also the space occupied by it is relatively large, and the effective density of the electric heating element is correspondingly small; at the same time Since the electric heating tube is limited by its shell material, size and surface load parameters, it is difficult to achieve a large heating power in a small space. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electric heating element with simple structure, low co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/42F16L53/00
Inventor 张明程赵洪根丁俊
Owner ZHENJIANG WSK ELECTRICAL APPLIANCES
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