Thermocouple replacement device and method
A thermocouple and sealing letter technology, which is applied in the field of thermocouple replacement devices, can solve problems such as low replacement efficiency, easy damage, and complicated replacement process of thermocouples, and achieve the effect of simplifying operations and improving replacement efficiency
Pending Publication Date: 2022-05-27
PETROCHINA CO LTD
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Problems solved by technology
In the related art, the thermocouple is easily damaged by the burning substance or high temperature in the combustion furnace. Therefore, the combustion furnace needs to be closed to complete the replacement of the thermocouple, which leads to a complicated process of replacing the thermocouple and low replacement efficiency.
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[0038] In order to make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.
[0039] It is to be understood that the terms "first", "second", "third", "fourth", "fifth", "sixth", etc. used in this application may be used herein to describe various concepts, However, these concepts are not limited by these terms unless otherwise specified. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the present application, the first arrangement order may be referred to as the second arrangement order, and the second arrangement order may be referred to as the first arrangement order.
[0040] As used in this application, the terms "each", "plurality", "at least one", "any one", etc., at least one includes one, two or more, multiple includes two or more, and E...
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The invention discloses a thermocouple replacement device and method, and belongs to the technical field of petrochemical engineering. The air cylinder carries the first thermocouple to eject out of the sealing box under pushing of reversely-added air, the gas conveying pipeline guides medium gas into the combustion furnace through the preheating pipeline, the closed ball valve isolates an inner cavity of the sealing box from the combustion furnace, and under the conditions that the gas conveying pipeline and the preheating pipeline are in a closed state and the sealing box is in an open state, the gas conveying pipeline and the preheating pipeline are in a closed state. The connecting rod is disconnected; a second thermocouple is used for replacing the first thermocouple, a sealing box is in a closed state, an air cylinder and the second thermocouple are connected through a connecting rod, a preheating pipeline is opened, medium gas heats the second thermocouple, and under the conditions that the preheating pipeline is closed and a ball valve is opened, the air cylinder carries the second thermocouple to enter a combustion furnace under pushing of air fed in the forward direction. Under the conditions that the combustion furnace works normally and the dielectric gas is prevented from leaking, the thermocouple is replaced, the operation of replacing the thermocouple is simplified, and the replacement efficiency is improved.
Description
technical field [0001] The present application relates to the technical field of petrochemicals, and in particular, to a thermocouple replacement device and method. Background technique [0002] The combustion furnace can burn various substances to achieve material recovery. During the combustion process of the combustion furnace, a thermocouple needs to be placed to detect the temperature in the combustion furnace to determine whether the combustion furnace is in a safe operation state. In the related art, the thermocouple is easily damaged by the burning substance or high temperature in the combustion furnace. For this reason, the combustion furnace needs to be shut down to complete the replacement of the thermocouple, which in turn leads to a complicated process of replacing the thermocouple and low replacement efficiency. SUMMARY OF THE INVENTION [0003] The embodiments of the present application provide a thermocouple replacement device and method, which can complet...
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IPC IPC(8): G01K1/14G01K7/02
CPCG01K1/14G01K7/02Y02P20/10
Inventor 汪斌李飞李良伦高进任勇陈代双张强温涛罗聪
Owner PETROCHINA CO LTD