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Kerosene heating system for supersonics burning test bed

A supersonic combustion and heating system technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as pipe and heater blockage, oil injection hole blockage, valve seal failure, etc.

Inactive Publication Date: 2005-10-26
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the coke exists in the form of free particles, it will enter the combustion chamber as part of the fuel along with the pyrolysis kerosene, and will not cause trouble to the heater and transportation system; but if the coke particles gather into flocs, or precipitate In the heater or system, it forms a layered or massive solid, or forms a highly viscous liquid with kerosene, which will cause problems such as oil injection hole blockage, sensor failure, and valve sealing failure, making the system unable to operate effectively. In severe cases It will lead to local blockage of pipes and heaters, causing serious accidents

Method used

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  • Kerosene heating system for supersonics burning test bed
  • Kerosene heating system for supersonics burning test bed
  • Kerosene heating system for supersonics burning test bed

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Embodiment Construction

[0019] The present invention is specifically described below in conjunction with accompanying drawing:

[0020] The present invention is used for the kerosene heating system of the supersonic combustion test bench, and its structural diagram is as follows figure 1 As shown, the system includes:

[0021] The primary heater 1 is composed of a spiral tube 11 arranged in the inner layer and a heating belt 12 coated on the spiral tube. The tube wall of the spiral tube 11 is welded with a K-type thermocouple 13 for measuring the temperature of the tube wall. The thermocouple can also penetrate the pipe wall to directly measure the kerosene temperature; one end of the spiral pipe 11 is connected to a high-pressure oil source 15 through a valve 14, and the other end is equipped with a double safety system 16 and a drive system 17, and the high-pressure oil source is pushed by a high-pressure gas 151 to a piston 152 Entering the primary heater, the double safety system 16 includes a f...

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Abstract

The invention discloses a kerosene heating system for hypersonic combustion test-bed use. It is characterized in that the system comprises the primary heater and the secondary heater connecting the combustion chamber, and the primary and the secondary heaters are linked by the pipeline and the valves are set on the pipeline and between the combustion chamber and the secondary heater. The invention adopts the second-level heating to shorten the time that the kerosene is in the high temperature state and makes the kerosene split quickly in flowing state and greatly reduces the gathering and depositing of the coal.

Description

technical field [0001] The invention relates to a kerosene heating system for a supersonic combustion test bench. Background technique [0002] Supersonic engines run on liquid hydrocarbons as fuel. In order to prevent the combustion chamber of the engine from being burned during operation, the liquid fuel before injection is often used as a coolant to absorb the heat of the combustion chamber wall, so the heated fuel is actually injected into the combustion chamber. The kerosene heated to the supercritical state will be gasified directly after entering the combustion chamber. If the kerosene is heated above the cracking temperature, the macromolecular hydrocarbons in the kerosene will be cracked, and a suitable catalyst will accelerate the cracking process. Supercritical or pyrolyzed kerosene allows for a significant optimization of engine performance relative to unheated kerosene. When the kerosene is heated above the cracking temperature, the multi-components in the ke...

Claims

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Application Information

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IPC IPC(8): F24H1/10
Inventor 卢锡年范学军李英李建国俞刚张新宇
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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