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Molten salt energy storage-based ammonia boiler for real-time cracking of ammonia fuel through plasma

A technology of plasma and molten salt, which is applied to the combustion of block fuel and liquid fuel, the combustion of liquid fuel and gaseous fuel, the combustion of liquid fuel and powder fuel, etc. It can solve the problem of unstable combustion of ammonia fuel, Insufficient combustion and other problems, to achieve the effect of improving stability, improving combustion sufficiency, and improving combustion efficiency

Pending Publication Date: 2021-06-29
INST OF ENERGY HEFEI COMPREHENSIVE NAT SCI CENT (ANHUI ENERGY LAB)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an ammonia boiler based on a molten salt energy storage magnetic ring enhanced rotating arc plasma cracking ammonia fuel in real time, to provide the boiler with ammonia fuel without carbon emissions, and to solve the problem of unstable combustion of ammonia fuel and ineffective combustion. Sufficient and other issues

Method used

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  • Molten salt energy storage-based ammonia boiler for real-time cracking of ammonia fuel through plasma
  • Molten salt energy storage-based ammonia boiler for real-time cracking of ammonia fuel through plasma
  • Molten salt energy storage-based ammonia boiler for real-time cracking of ammonia fuel through plasma

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Embodiment 1

[0042] see Figure 1-7 As shown, the present invention is an ammonia boiler based on plasma real-time cracking of ammonia fuel based on molten salt energy storage. Wherein the ammonia decomposition box includes a plasma generator, a temperature sensor, a gas pressure sensor and a hydrogen component sensor; the plasma igniter includes an electric spark plasma generator; the plasma burner includes a microwave plasma generator; the plasma igniter and The plasma burner is installed in the combustion chamber of the ammonia boiler.

[0043] Before the ammonia fuel source is mixed with the air source, the ammonia fuel source is heated and decomposed online in real time by the ammonia decomposition box; after the liquid ammonia fuel is vaporized or the ammonia fuel enters the ammonia decomposition box in gaseous form, it is partially decomposed into ammonia and hydrogen online The mixed gas; the ammonia decomposition rate is controlled by the input power of the plasma generator, the de...

Embodiment 2

[0049] Such as figure 2 As shown, the plasma generator adopts a sliding arc plasma generator, and the overall structure of the sliding arc plasma generator adopts a coaxial structure;

[0050] The sliding arc plasma generator in the ammonia decomposition box includes a high voltage electrode, a cyclone ring, a ground electrode and a nozzle; the high voltage electrode is a rod-shaped structure, the ground electrode is a tapered tubular structure, and the nozzle is a conical structure; the high voltage electrode, the ground electrode and The three nozzles are coaxially fixed in space; the high-voltage electrode and the nozzle are fixedly connected to the ground electrode respectively. And there is a shrinking device on the nozzle.

[0051] The principle block diagram of the sliding arc plasma power supply is as follows: image 3 As shown, the power supply of the sliding arc plasma power supply is provided by the mains or the generator. The power supply includes a rectifier ci...

Embodiment 3

[0056] The tail gas treatment process of ammonia boiler is as follows: Figure 7 As shown, the tail gas produced by the ammonia boiler is first passed into ammonia water to remove the acid gas CO 2 and NO 2 , subsequently configured to detect NO x Concentration of NO x Sensors and NH 3 concentration of NH 3 sensor, if the concentration of ammonia is high, the exhaust gas is introduced into line A to purify NO through a selective catalytic reduction catalyst (zeolite or vanadium catalyst containing Fe ions and the main components are Si, O, Al, etc.) x , the treated one contains a higher concentration of NH 3 The exhaust gas is introduced into the ammonia boiler for reuse, and part of the purified NH 3 Pass through ammonia water to keep the concentration of ammonia water at the optimal value for absorbing acid gas; if the concentration of ammonia is low, enter line B equipped with a suitable catalyst to pass NH 3 +NO x →N 2 +H 2 O reaction to NH 3 and NO x Purificat...

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Abstract

The invention discloses a molten salt energy storage-based ammonia boiler for real-time cracking of ammonia fuel through magnetic ring enhanced rotating arc plasma, and relates to the technical field of new energy boilers. The molten salt energy storage-based ammonia boiler comprises an ammonia decomposition box, and the ammonia decomposition box comprises a plasma ammonia cracker, a temperature sensor, a gas pressure sensor and a hydrogen component sensor. Before mixed combustion with an air source, an ammonia fuel source firstly passes through the ammonia decomposition box, the ammonia fuel source is cracked in real time through a magnetic ring enhanced rotating arc plasma ammonia cracker, and ammonia / hydrogen mixed gas is prepared; and a plasma igniter and a plasma combustion-supporting device are arranged in a combustion chamber of the ammonia boiler. According to the molten salt energy storage-based ammonia boiler,the discharge power of the magnetic ring enhanced rotating arc plasma ammonia cracker is adjusted, so that the ratio of ammonia gas to hydrogen can be accurately adjusted, ammonia / hydrogen mixed fuel can be stably combusted in the boiler combustion chamber, an on-line ammonia boiler tail gas treatment system performs purification treatment on the tail gas by utilizing the existing ammonia fuel of a combustion system, and therefore, the emission standard is reached.

Description

technical field [0001] The invention belongs to the technical field of new energy boilers, and in particular relates to an ammonia boiler based on molten salt energy storage plasma for real-time cracking of ammonia fuel, specifically an online real-time cracking of ammonia fuel, ignition and combustion support based on magnetic ring enhanced rotating arc plasma ammonia boiler. Background technique [0002] Most of the current civil and industrial boilers use fossil fuels for combustion, but the CO produced during the combustion of fossil fuels 2 Causes a significant greenhouse effect, whether it is coal or natural gas, the carbon dioxide emissions of boilers contribute a considerable part of the greenhouse effect. To reduce the greenhouse effect, it is one of the necessary ways to replace or partially replace existing fossil fuels with new fuels. As a clean energy, hydrogen energy has a stable combustion process and high calorific value released by combustion. Storage and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C5/08F23D11/38F23D11/40F23J15/04F23N1/00F23Q3/00F28D20/00F22B1/02
CPCF23C5/08F23D11/40F23D11/38F23Q3/008F23N1/002F23J15/04F28D20/0034F22B1/028F28D2020/0047Y02E60/14Y02E70/30
Inventor 丁军陈龙威方世东林启富章文扬香开新丛杰陈祥松李建刚
Owner INST OF ENERGY HEFEI COMPREHENSIVE NAT SCI CENT (ANHUI ENERGY LAB)
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