A gasification system using steam hot air as a gasification agent

Abstract

The utility model belongs to the gasification technical field, concretely relates to a kind of gasification system of water vapor hot air as gasification agent.The gasification system of the utility model, including air heat exchanger, water vapor generating device, air blower and gasification furnace, the import end of air heat exchanger is connected to the export end of air blower, the import end of gasification furnace is connected to the export end of air heat exchanger, water vapor generating device is arranged between air heat exchanger and gasification furnace, the import end of gasification furnace is connected to the export end of water vapor generating device.The gasification system of the utility model uses water vapor and hot air as gasification agent, different from using cold air as gasification agent in prior art, the gasification system of the utility model can better control gasification temperature, improve gas calorific value, to improve combustion efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of gasification technology, specifically relating to a gasification system that uses water vapor and hot air as a gasification agent. Background Technology

[0002] A gasifier is a device that converts solid or liquid fuels into combustible gases (such as syngas and coal gas), and is widely used in industrial energy, chemical production, and biomass energy utilization. Through high-temperature (above 700°C) and oxygen-limited environments, the carbon and hydrogen elements in the fuel undergo pyrolysis, oxidation, and reduction reactions, ultimately producing combustible gases mainly composed of CO, H2, and CH4, while potentially generating byproducts such as tar and ash. Existing gasifiers generally use cold air as the gasifying agent, making it difficult to control the gasification temperature, and the resulting gas has a low calorific value, failing to meet the requirements for high combustion efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a gasification system using steam and hot air as the gasifying agent. Unlike existing technologies that use cold air as the gasifying agent, this invention's gasification system uses steam and hot air as the gasifying agent, allowing for better control of the gasification temperature and increasing the calorific value of the fuel gas, thereby improving combustion efficiency.

[0004] To achieve the above technical objectives, the technical solution adopted in this utility model embodiment is as follows:

[0005] A vaporization system using hot air as a vaporizing agent includes an air heat exchanger, a steam generating device, a blower, and a vaporizer. The outlet end of the blower is connected to the inlet end of the air heat exchanger, and the outlet end of the air heat exchanger is connected to the inlet end of the vaporizer. A steam generating device is provided between the air heat exchanger and the vaporizer, and the outlet end of the steam generating device is connected to the inlet end of the vaporizer.

[0006] Furthermore, the blower delivers air to the air heat exchanger, which heats the air. The hot air and the steam generated by the steam generator are simultaneously delivered to the gasifier as a gasifying agent.

[0007] Furthermore, the steam generating device is a gas-liquid separator.

[0008] The beneficial effects of the technical solution provided by this utility model embodiment are:

[0009] (1) Improve gasification efficiency: The high temperature characteristics of hot air and water vapor can directly provide the heat required for the reaction, promote the endothermic reaction between carbon and water vapor, and thus improve gasification efficiency.

[0010] (2) Reduce tar formation: The high-temperature environment of superheated steam reduces tar formation, lowers the risk of equipment blockage, and ensures that the reaction continues to proceed stably.

[0011] (3) Avoid heat loss caused by water vapor condensation: Superheated steam does not contain liquid water, and when it participates in the gasification reaction, it can avoid heat loss caused by water vapor condensation, thus improving the energy utilization efficiency.

[0012] (4) Uniform and fast heating: Water vapor has the advantages of uniform heating, fast heating and easy control as a heat source, which makes it more effective in transferring heat in the gasifier and improving the uniformity and efficiency of the gasification reaction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the vaporization system using water vapor and hot air as vaporizing agents in an embodiment of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1-Air heat exchanger; 2-Steam generating device; 3-Blower; 4-Gasification furnace. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the directional terms such as "inner" and "outer", "upper" and "lower", "left" and "right" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model.

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] Example 1

[0018] A vaporization system using hot air as a vaporizing agent includes an air heat exchanger 1, a steam generating device 2, a blower 3, and a vaporizer 4. The outlet end of the blower 3 is connected to the inlet end of the air heat exchanger 1, and the outlet end of the air heat exchanger 1 is connected to the inlet end of the vaporizer 4. The steam generating device 2 is provided between the air heat exchanger 1 and the vaporizer 4, and the outlet end of the steam generating device 2 is connected to the inlet end of the vaporizer 4.

[0019] Blower 3 delivers air to air heat exchanger 1, which heats the air. The hot air and water vapor generated by steam generator 2 are simultaneously delivered to gasifier 4 as a gasifying agent.

[0020] In one embodiment, the steam generating device 2 is a gas-liquid separator.

[0021] The gasification system of this invention uses water vapor and hot air as gasifying agents, unlike the prior art which uses cold air as a gasifying agent. The gasification system of this invention can better control the gasification temperature, increase the calorific value of the fuel gas, and thus improve the combustion efficiency.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vaporization system using steam and hot air as a vaporizing agent, characterized in that, The device includes an air heat exchanger (1), a steam generating device (2), a blower (3), and a gasifier (4). The outlet end of the blower (3) is connected to the inlet end of the air heat exchanger (1), and the outlet end of the air heat exchanger (1) is connected to the inlet end of the gasifier (4). A steam generating device (2) is provided between the air heat exchanger (1) and the gasifier (4), and the outlet end of the steam generating device (2) is connected to the inlet end of the gasifier (4).

2. The vaporization system using steam and hot air as a vaporizing agent according to claim 1, characterized in that, The blower (3) delivers air to the air heat exchanger (1), which heats the air. The hot air and the steam generated by the steam generating device (2) are simultaneously delivered to the gasifier (4) as a gasifying agent.

3. The vaporization system using steam and hot air as the vaporizing agent according to claim 1 or 2, characterized in that, The steam generating device (2) is a gas-liquid separator.

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