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Testing device and method for hydrogen constant-volume compression ignition

A test device, hydrogen technology, applied in the direction of internal combustion engine testing, etc., can solve the problems of constant volume incendiary bomb heating, diaphragm fire resistance, etc., achieve high heating efficiency, rapid heating, and improve fire resistance performance

Inactive Publication Date: 2011-08-31
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of existing constant volume incendiary bomb heating, visual window sealing and protection, and diaphragm fire resistance, and provide a constant volume compression ignition test device and its test method that can conduct research on hydrogen compression ignition characteristics

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  • Testing device and method for hydrogen constant-volume compression ignition
  • Testing device and method for hydrogen constant-volume compression ignition
  • Testing device and method for hydrogen constant-volume compression ignition

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Embodiment Construction

[0074] In order to better illustrate the purpose and advantages of the present invention, the content of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0075] Based on the characteristics of the device of the present invention, there are mainly two implementation modes. First, when adding a grooved plug, use this device to study the hydrogen-oxygen flame propagation process near the wall; second, when adding a diaphragm, use this device to study the compression ignition characteristics of hydrogen, wherein, according to the test It is necessary to select different diaphragms (different numbers of through holes, different diameters of through holes, different fire retardant methods, etc.). Based on the structural characteristics of this device, the device can easily realize the ignition of the center electrode through simple modification (perforating a through hole at the bottom of the container bomb), so a...

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Abstract

The invention relates to a testing device and method for hydrogen constant-volume compression ignition, belonging to the technical field of combustion of internal combustion engines. The device comprises a body, transverse clapboards, groove tents, visible view windows and heating sticks, wherein the two visible view windows are packaged at the two ends of the body respectively and are fixed together through a fastening bolt; a plurality of the heating sticks are arranged in heating stick installation through holes of the body; during research of the compression ignition characteristic of hydrogen, the transverse clapboards are arranged in a first groove or a second groove of the body or in the two grooves simultaneously; and during research of the spreading process of hydrogen and oxygen flames close to a near wall face, the groove tents are arranged in the first groove and the second groove. The testing method comprises a volume bullet heating method, a transverse clapboard fire retardance ventilation method and a combustion waste gas exhausting method. Due to the adoption of the device and the method, the volume bullet heating is quick, the heating efficiency is high, the temperature rise is high, the heating performance is reliable, the appearance of a system is not influenced, internal hot points are avoided, and the sealing performance is high.

Description

technical field [0001] The invention relates to a hydrogen constant volume compression ignition test device and a test method thereof, which belong to the technical field of internal combustion engine combustion. Background technique [0002] The existing constant-volume combustion devices with partitions at home and abroad only use the method of reducing the diameter of the through hole to prevent the flame from the upper combustion chamber from propagating to the lower combustion chamber. Since the quenching distance of hydrogen is relatively small, the quenching distance of hydrogen is as small as 0.64mm at the stoichiometric ratio. For a constant volume combustion device with a partition, even if the diameter of the through hole is set to 0.5mm, under the conditions of high flame propagation velocity, high temperature and high pressure, the hydrogen-oxygen flame will pass through the through hole and enter the lower combustion chamber. In addition, machining smaller dia...

Claims

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Application Information

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IPC IPC(8): G01M15/04
Inventor 刘兴华樊志强酒建刚王汝维刘福水
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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