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

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...

AI Technical Summary

Problems solved by technology

The maximum test temperature of the explosion limit tester introduced in the existing standards is 200°C. Temperatures exceeding 200°C will affect sealing materials and electronic components, and the explosion limit cannot be effectively detected.

Images