A structure capable of realizing stable operation of a gasification burner

Abstract

The utility model discloses a structure can realize gasification burner stable operation belongs to gasification furnace burner technical field, including burner main part and with the steam pipeline, oxygen pipeline, fuel oil pipeline, second oxygen pipeline and another steam pipeline of burner main body connection, the first steam control valve of steam pipeline increases the steam flow, makes the center passage medium and one, two oxygen pipeline medium flow rate basically consistent, the oxygen gas flow of oxygen adjusting valve on second oxygen pipeline adjusts oxygen gas flow, makes one, two oxygen pipeline oxygen gas flow rate basically consistent or slightly higher oxygen in, the utility model discloses the optimization burner external pipeline makes different passage oxygen gas flow rate adaptation, avoids the burner ablation, prolongs the operation cycle, guarantees the stable operation of gasification furnace, is applicable to multiple oil gasification and related industry.

Description

Technical Field

[0001] This utility model relates to a burner structure, and more specifically, to a structure that enables stable operation of a gasification burner, belonging to the field of gasification furnace burner technology. Background Technology

[0002] The burner in the residue / fuel oil gasification furnace process adopts a multi-channel external mixing burner. The central channel of the burner carries fuel oil (oil residue, tar, etc.), and the two sides of the fuel oil channel are oxygen channels (divided into external oxygen channels and internal oxygen channels). The outer channel of the external oxygen channel and the central channel of the inner oxygen channel are both steam channels. However, due to limitations in the burner structure and the configuration of the external piping system, varying degrees of erosion occur in each channel of the burner. The external oxygen channel has a larger flow rate and higher velocity than the internal oxygen channel, which obstructs the flame outward propulsion. The burner channels are gradually eroded and damaged from the inside out, causing the gasifier to be unable to operate for extended periods, affecting the production safety and stability of the unit. Summary of the Invention

[0003] To address the issues of burner head erosion and short operating cycles, the burner's structure was improved and optimized, and its operation control method was also optimized. Specifically, by improving the external oxygen and steam pipelines of the gasifier burner, the oxygen flow rate and velocity of the burner can be adjusted online to meet the adjustability requirements of the burner under different operating conditions, thereby achieving continuous and stable operation of the gasifier system.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: This utility model discloses a structure capable of achieving stable operation of a gasification burner, comprising a burner body, and a main steam pipeline, a first oxygen pipeline, a fuel oil pipeline, a second oxygen pipeline, and an auxiliary steam pipeline connected to the burner body; the steam pipeline is equipped with a first steam control valve, which is used to increase the steam flow rate of the steam pipeline and increase the medium velocity in the central channel, so that the medium velocity in the central channel is consistent with the medium velocity in the first oxygen pipeline and the second oxygen pipeline (which only needs to be basically the same); The second oxygen pipeline is equipped with an oxygen regulating valve to regulate the oxygen flow rate in the second oxygen pipeline, so that the oxygen flow rates of the first and second oxygen pipelines are basically the same, or the oxygen flow rate in the first oxygen pipeline is slightly higher than the oxygen flow rate in the second oxygen pipeline.

[0005] Preferably, an oxygen regulating valve may or may not be installed on the oxygen pipeline No. 1.

[0006] Preferably, the second oxygen pipeline does not require a flow-limiting orifice plate.

[0007] Preferably, the middle channel of the burner body is a fuel oil channel.

[0008] Beneficial Effects: This invention adjusts the flow rate of the medium on both sides of the oil residue / fuel to ensure that the oxygen flow rate in different channels remains basically consistent, or that the internal oxygen flow rate is slightly greater than the external oxygen flow rate, making it easier to push the burner flame out. After a long period of trial and improvement, this invention is feasible and has significant effects. The burner's operating cycle is much longer than the original burner system design structure; it ensures the stable operation of the (heavy) oil gasification burner, improves the safety and stability of the unit's production and significantly enhances economic benefits, possessing high practical value and greatly contributing to the stable operation of petrochemical slurry bed hydrogenation units; this invention is applicable to multi-channel oil burners and can be applied to various oil gasification processes, including heavy oil gasification, residue oil gasification, and oil slurry gasification, etc. It is suitable for oily waste liquid incineration, chemical waste liquid incineration, etc., and applicable to industries such as natural gas hydrogen production and raw coal gas hydrogen production, and has reference value for multi-component slurry gasification, coal gasification, and other gasification processes. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main structure of the burner of this utility model. Detailed Implementation

[0010] The following will refer to the appendix in the embodiments of this utility model. Figure 1 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0011] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0012] Technical solution / principle: This invention provides a structure capable of stable operation of a gasification burner, comprising a burner body and a main steam pipeline 1, a first oxygen pipeline 2, a fuel oil pipeline 3, a second oxygen pipeline 4, and an auxiliary steam pipeline 5 connected to the burner body. The main steam pipeline 1 is equipped with a first steam control valve, which increases the steam flow rate of the main steam pipeline 1 and raises the medium velocity in the central channel, making the medium velocity in the central channel essentially the same as that in the first oxygen pipeline 2 and the second oxygen pipeline 4. The second oxygen pipeline 4 is equipped with an oxygen regulating valve, which regulates the oxygen flow rate in the second oxygen pipeline 4, making the oxygen velocities in the first oxygen pipeline 2 and the second oxygen pipeline 4 essentially the same, or the oxygen velocity in the first oxygen pipeline 2 is slightly higher than that in the second oxygen pipeline 4. The oxygen regulating valve can be retained on the first oxygen pipeline 2 or removed. A flow-limiting orifice plate can be omitted from the second oxygen pipeline 4. Further, the central channel of the burner body is a fuel oil channel.

[0013] Specific implementation methods are as follows Figure 1 As shown, this utility model provides a structure capable of stable operation of a gasification burner, including a burner body and a main steam pipeline 1, a first oxygen pipeline 2, a fuel oil pipeline 3, a second oxygen pipeline 4, and an auxiliary steam pipeline 5 connected to the burner body. A first steam control valve is installed on the main steam pipeline 1 to increase the steam flow rate of the main steam pipeline 1 and raise the medium velocity in the central channel, making the medium velocity in the central channel essentially the same as the medium velocity in the first oxygen pipeline 2 and the second oxygen pipeline 4. An oxygen regulating valve is installed on the second oxygen pipeline 4 to regulate the oxygen flow rate in the second oxygen pipeline 4, making the oxygen velocity in the first oxygen pipeline 2 and the second oxygen pipeline 4 essentially the same, or the oxygen velocity in the first oxygen pipeline 2 slightly higher than the oxygen velocity in the second oxygen pipeline 4. The oxygen regulating valve can be retained on the first oxygen pipeline 2 or removed; a flow-limiting orifice plate can be omitted from the second oxygen pipeline 4. The burner body has a fuel oil channel in the middle, and oxygen channels No. 1 and No. 2 are located on both sides of the fuel oil channel.

[0014] In actual operation, the steam flow rate of the main steam pipeline 1 is increased by the first steam control valve, thereby increasing the medium velocity in the central channel to make it basically consistent with the medium velocity in oxygen pipelines 2 and 4. The oxygen flow rate in oxygen pipeline 4 is adjusted by the oxygen regulating valve on oxygen pipeline 4 to make the oxygen velocities in oxygen pipelines 2 and 4 basically consistent, or slightly higher. This ensures that the burner flame can be easily ejected, avoids burner channel erosion and damage, extends the burner operating cycle, and achieves continuous and stable operation of the gasifier system. The structure is simple, adapts oxygen flow rates in different channels, prevents burner erosion, extends the operating cycle, and ensures stable operation of the gasifier. It is suitable for various oil gasification and related industries.

[0015] Finally, it should be noted that this utility model is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A structure capable of achieving stable operation of a gasification burner, characterized in that, It includes a burner body, and a main steam pipeline (1), a first oxygen pipeline (2), a fuel oil pipeline (3), a second oxygen pipeline (4), and an auxiliary steam pipeline (5) connected to the burner body; the main steam pipeline (1) is equipped with a first steam control valve, which is used to increase the steam flow rate of the main steam pipeline (1), increase the medium velocity in the central channel, and make the medium velocity in the central channel consistent with the medium velocity in the first oxygen pipeline (2) and the second oxygen pipeline (4); The second oxygen pipeline (4) is equipped with an oxygen regulating valve to regulate the oxygen flow rate in the second oxygen pipeline (4) so ​​that the oxygen flow rates of the first oxygen pipeline (2) and the second oxygen pipeline (4) are the same, or the oxygen flow rate in the first oxygen pipeline (2) is higher than the oxygen flow rate in the second oxygen pipeline (4).

2. The structure for achieving stable operation of a gasification burner according to claim 1, characterized in that, The oxygen pipeline (2) can be selectively equipped with or without an oxygen regulating valve.

3. A structure capable of achieving stable operation of a gasification burner according to claim 1 or 2, characterized in that, The second oxygen pipeline (4) does not require a flow-limiting orifice plate.

4. The structure according to claim 1 that enables stable operation of a gasification burner, characterized in that, The middle channel of the burner body is a fuel oil channel.

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