Self-rotation type outer rotor asynchronous electric heating assembly and drying equipment

An external rotor, self-rotating technology, applied in lighting and heating equipment, drying, dryers, etc., can solve the problems of downtime maintenance, complex structure, comprehensive comparison of energy consumption, and achieve the effect of improving heating efficiency

Active Publication Date: 2021-11-26
刘哲民
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Through the analysis of the above-mentioned existing technologies, the existing heating method is generally electromagnetic heating, and at the same time cooperate with a driving motor to realize operation and heating. The existing technical defects exist due to the existence of independent driving and electromagnetic heating parts. It leads to complex structure and cumbersome maintenance, especially if the motor is damaged or the electromagnetic heating is damaged, it will directly lead to downtime and maintenance; the comprehensive comparison of energy consumption is relatively high

Method used

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  • Self-rotation type outer rotor asynchronous electric heating assembly and drying equipment
  • Self-rotation type outer rotor asynchronous electric heating assembly and drying equipment
  • Self-rotation type outer rotor asynchronous electric heating assembly and drying equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, preferably, the core support is an integrated structure, please refer to figure 1 ; The axial length of the iron core is longer and the power is larger, which is suitable for occasions with large heat demand.

Embodiment 2

[0034] Embodiment 2, preferably, the core adopts a segmented structure, please refer to figure 2 , the driving winding and the heating winding are continuous, when the demand for heat generation is small. Since the length of the rotor cylinder is determined according to the object to be dried, the iron core is segmented to reduce part of the iron core to reduce the consumption of iron core materials.

Embodiment 3

[0035] Embodiment 3, preferably, the core support is a split structure, please refer to image 3 , each core bracket is equipped with an iron core, and the winding on each iron core is independent. This situation also reduces the amount of iron core. Due to the existence of the winding end, the distance between the iron core segments needs to meet the requirements of the end length. However, each core segment and winding can be manufactured separately to form modules, and different numbers of modules can be assembled according to design requirements, which is conducive to standardized and generalized production.

[0036] Preferably, the gap between the outer wall of the iron core and the inner wall of the rotor cylinder is 0.5mm-7.5mm. If the gap is too small, the machining requirements are high, the processing is difficult, and mechanical failures are prone to occur during operation; if the gap is too large, the reluctance of the gap is too large. Larger current is required t...

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PUM

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Abstract

The invention discloses a self-rotation type outer rotor asynchronous electric heating component. The self-rotation type outer rotor asynchronous electric heating component comprises a stator component and a rotor component, wherein the stator component comprises a stator shaft, an iron core bracket and an iron core; N sets of three-phase windings are wound on the iron core, wherein N is greater than or equal to 2; M sets of three-phase windings in the N sets of three-phase windings are driving windings, and M is greater than or equal to 1; the other N-M sets of three-phase windings are heating windings; the N-M sets of heating windings are divided into two groups, and the direction of a revolving magnetic field generated by one group of heating windings is opposite to that of a revolving magnetic field generated by the other group of heating windings, so that torques generated by the two groups of heating windings are mutually counteracted; the rotor component comprises end covers installed at the two ends of the stator shaft through bearings; and a rotor cylinder made of a ferromagnetic material is arranged between the two end covers. The heating efficiency is greatly improved, electric energy input from the outside is used for driving rotation and heating, no other connectivity heat loss exists, and during steam heating, the whole pipeline system is very long, and the heat loss is very large.

Description

technical field [0001] The invention belongs to drying equipment, and in particular relates to an occasion where a driven object needs to be heated. Such as self-rotating outer rotor asynchronous electric heating assembly and drying equipment in printing and dyeing, chemical fiber, textile, paper and other industries. Background technique [0002] Heating is a frequently used process link in industrial production, such as in printing and dyeing, chemical fiber, textile, papermaking and other industries; the following is an example of papermaking production. Drying cylinders are used in the papermaking process. Traditional drying cylinders It is generally a steam dryer, and its dryer is generally designed with an axially rotating drum. The wet paper can be more flat and rotated on the dryer. The temperature in the steam dryer evaporates the water, and the water vapor is carried away by the exhaust. Go, realize the drying of paper; with the development of technology, electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B23/08H02K15/12
CPCF26B23/04H02K15/125
Inventor 刘哲民
Owner 刘哲民
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