Split type high-voltage arc ignition device for experiment

A high-voltage arc and ignition device technology, which is applied in the direction of ignition by electric spark, combustion ignition, and combustion methods, can solve the problems of poor applicability, low ignition efficiency, and poor stability of arc ignition devices, and is beneficial to experimental ignition and use. Flexible, precise effects

Inactive Publication Date: 2015-08-19
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of low ignition efficiency, poor stability, high cost and poor applicability of existing arc ignition devices in the prior art, and to provide a split-type high-voltage arc ignition device for experiments. The invention uses the arc ignition method to replace the traditional platinum wire ignition method, which improves the ignition efficiency of pulverized coal in the laboratory, reduces the cost, and is easy to use

Method used

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  • Split type high-voltage arc ignition device for experiment

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Embodiment 1

[0026] combine figure 1 , an experimental split-type high-voltage arc ignition device of this embodiment is mainly composed of an arc generating mechanism and a supporting device, wherein: the supporting device includes a supporting seat 201 and a scale-type adjusting rod 202, and four scale-type adjusting rods 202 are installed The lower surface of the support base 201 serves as a support; the scale-type adjustment rod 202 used can be adjusted in millimeter scales to change the height of the support base 201 .

[0027] The arc generating mechanism in this embodiment includes a voltage boosting device and an arc starting device. The arc starting device is installed on the upper surface of the support base 201 and includes a discharge electrode 302, a scale-type adjusting disc 301 and an electrode support 304. The two electrode supports 304 are vertically fixed. On the upper surface of the support base 201, a coaxial round hole is opened at the same height as the two electrode ...

Embodiment 2

[0033] An experimental split-type high-voltage arc ignition device of this embodiment has the same basic structure as that of Embodiment 1, the difference being that: the scale-type adjusting disc 301 is cylindrical, and the tail of the scale-type adjusting disc 301 is provided with The knob is marked with a scale along the circumference of the knob. Every time the knob rotates, the crossbar extends or retracts by a millimeter, and the corresponding discharge electrode 302 advances or retreats by a millimeter, thereby achieving the purpose of adjusting the distance between the discharge electrodes 302.

[0034] The scale-type adjusting dial 301 in this embodiment is similar to the adjusting structure of a spiral micrometer, and its adjustment accuracy is higher, and the distance between the discharge electrodes 302 can be fine-tuned, thereby changing its energy density, realizing the adjustability of the ignition device, Scalability and increased applicability

Embodiment 3

[0036] An experimental split-type high-voltage arc ignition device of this embodiment has the same basic structure as that of Embodiment 2, except that there are three graduated adjustment rods 202 installed on the lower surface of the support base 201 in this embodiment. , its main purpose is to support the supporting seat 201.

[0037] Based on the above embodiments, when the arc ignition experiment is performed on pulverized coal in the laboratory, different types of pulverized coal have different ignition characteristics and different ignition energies. After adopting the experimental split-type high-voltage arc ignition device of the present invention, it no longer depends on the traditional metal heating ignition and the ignition method of using an open flame to ignite, and can be applied to the combustion and ignition experiments of pulverized coal with different components, and it is energy-saving and environmentally friendly. Small impact. In the present invention, t...

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Abstract

The invention discloses a split type high-voltage arc ignition device for experiment and belongs to the field of ignition devices. The split type high-voltage arc ignition device comprises an arc generating mechanism and a support device. The support device comprises a support seat and a scale type adjusting rod, and the scale type adjusting rod is mounted on the lower surface of the support seat. The arc generating mechanism comprises a boosting device and an arcing device, wherein the arcing device is mounted on the upper surface of the support seat, a pair of discharging electrodes inserted into the side wall of a powder spraying pipeline is arranged in the arcing device and the distance between the discharging electrodes can be adjusted by a scale type adjusting disc. The boosting device is used for controlling arcing voltage of the discharging electrodes. The arc ignition mode of the split type high-voltage arc ignition device replaces a conventional platinum ignition mode, so that ignition efficiency of coal powder in a lab is improved, and cost is reduced. In addition, the split type high-voltage arc ignition device is good in flexibility, easy to adjust and convenient to use.

Description

technical field [0001] The invention relates to the technical field of experimental ignition devices, more specifically, to a split-type high-voltage arc ignition device for experiments. Background technique [0002] Labs often need to ignite pulverized coal to carry out simulation experiments. At present, the method of igniting pulverized coal in the laboratory is to heat the platinum wire with a diameter of 0.3mm wound on the ceramic tube to 1050°C as the ignition source. The platinum wire becomes very soft at high temperature. , the color is fiery red, and it is easy to break. Especially when the pulverized coal cloud is in contact with the platinum wire, the pulverized coal absorbs the temperature of the platinum wire, and the resistance of the platinum wire changes greatly, resulting in a change in the current of the platinum wire, which makes the platinum wire more likely to break. If the experimental gas is fed again, it is difficult for the high-temperature platinum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23Q3/00
Inventor 武层层顾明言孙文斌楚化强范煜东尹寿来吕鹏缪琦
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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