High-temperature high-pressure explosion limit tester, method for determining explosion limit, and application thereof

An explosion limit, high temperature and high pressure technology, applied in the direction of material explosion, can solve the problem of ineffective detection of explosion limit, and achieve the effect of reducing and improving the wall effect

Active Publication Date: 2013-02-20
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The maximum test temperature of the explosion limit tester introduced in the existing standards is 200°C. Temperatures exce

Method used

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  • High-temperature high-pressure explosion limit tester, method for determining explosion limit, and application thereof

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Embodiment Construction

[0042] The invention provides a novel high-temperature and high-pressure explosion limit tester, which includes: a raw material gas supply device, an explosion measurement device, a vacuum generating device and a control device;

[0043] It is used to generate and transmit the gas or steam to be measured and oxygen and nitrogen to the explosion detection device. The gas or steam to be measured, oxygen and nitrogen are delivered separately;

[0044] The explosion measuring device is mainly composed of a pressure sensor, a temperature sensor, and an igniter, and is used to determine the explosion limit, explosion pressure, and explosion temperature of the gas or vapor;

[0045] The vacuum generating device is used to vacuumize the explosion measuring device;

[0046] The control device is used for measuring, controlling and collecting experimental data generated during the experiment.

[0047] The raw material gas supply device includes an evaporator, on which a safety valve, a...

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Abstract

The invention provides a novel high-temperature high-pressure explosion limit tester comprising a raw material gas supply apparatus, an explosion determination device, a vacuum generating device, and a controlling device. The explosion determination device is mainly composed of a pressure sensor, a temperature sensor, and an igniter. The explosion determination device is used for determining explosion limit, explosion pressure and explosion temperature of the gas or vapor. The vacuum generating device is used in vacuum pumping upon the explosion determination device. The controlling device is used for determining, controlling and collecting experimental data generated during the experiment. Compared with prior arts, the high-temperature high-pressure explosion limit tester provided by the invention has a temperature testing range of room temperature to 400 DEG C, which is higher than 200 DEG C which is a maximal temperature of instruments in existing standards; the tester provided by the invention has a pressure range of normal pressure to 2.2MPa, which is higher than 1.38MPa which is a maximal pressure of instruments in existing standards; and the tester provided by the invention has a test volume of 10L, which is larger than that of an existing tube-type explosion limit tester, such that a wall effect can be better reduced.

Description

technical field [0001] The invention belongs to the field of petrochemical safety industry, in particular to a tester for measuring the explosion limit of combustible gas or steam under high temperature and high pressure conditions. Background technique [0002] Petrochemical process conditions generally involve the reaction of flammable gases or vapors under high temperature and high pressure conditions. There are often flammable gases and air, or a certain concentration of oxygen, in the reactor, tower or pipeline. Reaching the explosion limit concentration under this working condition, it is likely to cause an explosion under the excitation of static sparks. Therefore, a method that can simulate the working condition and can test the explosion limit of combustible gas under this condition is needed, and then for Process production provides boundary conditions to avoid the occurrence of dangerous accidents. It is a device for explosive testing of flammable gases and vapors...

Claims

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Application Information

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IPC IPC(8): G01N25/54
Inventor 王振刚孟庭宇郑俊鹤
Owner CHINA PETROLEUM & CHEM CORP
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