High-temperature fire tube type waste heat boiler tube plate cooling room

Abstract

The invention relates to a high-temperature fire tube type waste heat boiler tube plate cooling room. The high-temperature fire tube type waste heat boiler tube plate cooling room comprises four parts including a cooling room tube plate, a synthetic air tube flexible tube plate, a synthetic air tube and a cooling water tube. The cooling room is enclosed space formed by the cooling room tube plate and the synthetic air tube flexible tube plate, the synthetic air tube penetrates through the whole cooling room through the flexible tube plate and the cooling room tube plate, and the cooling water tube is connected into the cooling room through the cooling room tube plate. The cooling room is in a certain height, therefore, the uniform distribution of the cooling water nearby the flexible tube plate is guaranteed, and the situation that the flexible tube plate is overheated caused by the less local cooling water distribution is avoided. The cooling water enters the cooling room from the cooling water tube to flow out through the end outlet of the cooling water tube, and functions of the intensification of flowing nearby the synthetic air tube and the elimination of flowing dead zones are achieved. An insulation casting tube is arranged in the synthetic air tube close to the inlet of the flexible tube plate, therefore, the local thermal resistance can be increased, the local heat transmission capacity can be reduced, and the thermal stress and the temperature nearby tube walls are reduced.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a tube-plate cooling chamber of a high-temperature fire-tube waste heat boiler. Background technique [0002] Natural gas, shale gas, coal bed methane, oilfield gas, refinery gas, coke oven gas, pyrolysis gas and other gaseous hydrocarbons, with methane as the main component, are important basic energy and chemical raw materials. Production of synthesis gas (CO+H) from gaseous hydrocarbons 2 ) is an important process technology in energy and chemical industry. Synthesis gas can be further used to synthesize bulk chemicals such as ammonia, methanol, and oil. The implementation of the development and application of gaseous hydrocarbon conversion to synthesis gas is of great significance to improve energy utilization efficiency, promote energy conservation, emission reduction and environmental protection in the industry. [0003] At present, there are three types of mature gaseous hydrocarbon c...

AI Technical Summary

Problems solved by technology

The structure of the tube sheet cooling chamber is unreasonable, which may easily lead to problems such as uneven distribution of cooling water, uneven cooling of the flexible tube sheet of the synthesis gas pipe, and drying of the cooling water near the synthesis gas pipe.

The invention proposes a high-temperature waste heat boiler tube plate cooling chamber structure, which solves the problem of the flexible tube plate of the synthetic gas tube by rationally designing the layout of the cooling water pipes, the direction of the cooling water entering the flexible tube plate of the synthetic gas tube, and the installation of heat-insulating sleeves in the synthetic gas tube. Insufficient and uneven cooling problems

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