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Pressurizing tube type resistance furnace capable of adjusting length of working section and application method of pressurizing tube type resistance furnace

A tube type resistance furnace and working section technology, applied in furnace, furnace cooling, electric furnace heating and other directions, can solve problems such as incomplete suitability, and achieve the effects of optimized design, simple and feasible technical solution, and low implementation cost

Inactive Publication Date: 2012-08-08
江苏中国科学院能源动力研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because there are many factors affecting the reaction process in industrial devices, such as uneven flow, temperature and concentration distribution differences caused by heat transfer and mass transfer, etc., these factors are coupled with each other and will affect the reaction process of coal to a large extent. The understanding of the actual physical and chemical processes of the system is not fully suitable for the study of fuel reaction processes

Method used

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  • Pressurizing tube type resistance furnace capable of adjusting length of working section and application method of pressurizing tube type resistance furnace
  • Pressurizing tube type resistance furnace capable of adjusting length of working section and application method of pressurizing tube type resistance furnace
  • Pressurizing tube type resistance furnace capable of adjusting length of working section and application method of pressurizing tube type resistance furnace

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Experimental program
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Effect test

Embodiment 1

[0034] Embodiment 1, with reference to Figure 1-3 , a pressurized tubular resistance furnace with adjustable working section length,

[0035] A furnace tube 1 is detachably inserted in the furnace 2;

[0036] The upper end of the furnace tube 1 is inserted with a fuel injection gun 6, and the outside of the fuel injection gun 6 is provided with a water-cooled jacket. The upper port of the fuel injection gun 6 is connected with the fuel inlet 7 of the pressurized tube type resistance furnace; the fuel injection The lower end of the gun 6 is fixed in the middle of a rectification orifice 15;

[0037] The length of the fuel injection gun 6 inserted inside the furnace tube 1 is selected as required;

[0038] The part above the rectifying orifice plate 15 inserted with the fuel injection gun 6 is the preheating section 13, and the part of the furnace tube 1 below the fuel injection gun 6 is the working section 14; the reaction gas is preheated to the working temperature through ...

Embodiment 2

[0043] Embodiment 2, in the pressurized tubular resistance furnace with adjustable working section length described in Embodiment 1: there is no piezometric tube 10 at the upper part of the furnace 2 . The pressure measuring tube 10 is arranged near the reaction gas inlet 5 , preferably on the same level as the reaction gas inlet 5 . In this embodiment, the housing 4 can be made of steel plate. The thermal insulation layer 3 is refractory fiber.

Embodiment 3

[0044] Embodiment 3, in the pressurized tubular resistance furnace with adjustable length of the working section described in Embodiment 1 or 2: a number of measurement and control thermocouples are arranged on the side wall of the furnace 2 in the preheating section, located on the side of the furnace 2 of the working section 14 Several measurement and control thermocouples and inspection windows 11 are arranged on the wall, and each measurement and control thermocouple corresponds to a temperature control zone.

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Abstract

The invention relates to a pressurizing tube type resistance furnace. The pressurizing tubular resistance furnace structurally comprises a furnace tube and a sampling gun, wherein the furnace tube is detachably plugged inside a hearth; a fuel spray gun is arranged on the upper end inside the furnace tube in a plugging way, and the upper port of the fuel spray gun is connected with a fuel inlet of the pressurizing tube type resistance furnace; the lower end of the fuel spray gun is fixed on the middle of a rectification porous plate; the part of the furnace tube above the rectification porous plate is a preheating section, and the furnace tube part below the lower port of the fuel spray gun is a working section; the sampling gun is arranged on the bottom end of the pressurizing tube type resistance furnace in a plugging way; a water cooling jacket is arranged outside the sampling gun; the hearth is provided with a protective gas inlet corresponding to the preheating section; a heat preserving layer is arranged between the hearth and a shell; and a heating body is installed inside the hearth. The invention also provides an application method of the pressurizing tube type resistance furnace. According to the invention, multiple kinds of reaction atmospheres can be realized, and the pressurizing tube type resistance furnace is used for studying a chemical reaction law of the carbon-contained fuel under the conditions of high temperature, high pressure and high heating rate. According to the invention, the problems of sealing of the heating body, non pressure bearing of the furnace tube and adjustment of dwell time under the pressurizing also can be solved.

Description

technical field [0001] The invention relates to the study of gas phase reaction and reaction characteristics of solid fuel, especially the field of conversion and high-efficiency combustion of carbon-containing fuels such as coal, and also the field of emission control of carbon dioxide, nitrogen oxides, heavy metals and other pollutants. [0002] Specifically, the present invention relates to a pressurized tubular resistance furnace with adjustable working section length. [0003] The present invention also relates to a method for using the above pressurized tube resistance furnace. Background technique [0004] At present, solving the contradictions between energy, carbon emissions and the environment has become a key issue for the future use of coal in the world. The research on the reaction process of coal mainly relies on the experimental method at present. Since there are many factors affecting the reaction process in industrial devices, such as uneven flow, tempera...

Claims

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Application Information

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IPC IPC(8): F27B17/00F27D11/02F27D9/00
Inventor 肖云汉马正中徐祥阳绍军温雨鑫王东方
Owner 江苏中国科学院能源动力研究中心