Heat pipe type anti-adhesion crude gas waste heat recycling system

Abstract

The invention discloses a heat pipe type anti-adhesion crude gas waste heat recycling system, and belongs to the field of technologies for recycling crude gas waste heat in coking technological procedures. The heat pipe type anti-adhesion crude gas waste heat recycling system comprises a riser, a heat pipe heat exchange device and a special-shaped connecting pipe. A riser extension section is arranged on the top of the riser in the vertical direction and is communicated with the special-shaped connecting pipe via the heat pipe heat exchange device; optional heat exchange devices in the riser are omitted. The heat pipe heat exchange device comprises a heat-insulation tank, inlets of the heat-insulation tank are formed in the side surfaces of the heat-insulation tank, outlets of the heat-insulation tank are formed in the bottom surface of the heat-insulation tank, the inlets of the heat-insulation tank are connected with the outlets of the heat-insulation tank by a bottom heat-insulation plate which is obliquely arranged, and the bottom heat-insulation plate is detachably fixed to the bottom surface of the heat-insulation tank. The heat pipe type anti-adhesion crude gas waste heat recycling system has the advantage that crude gas waste heat resources can be safely, economically and efficiently recycled by the aid of the heat pipe type anti-adhesion crude gas waste heat recycling system.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery and utilization of raw coal gas in the coking process, and more specifically relates to a heat pipe type waste heat recovery system for anti-bonding raw gas. Background technique [0002] At present, the sensible heat taken away by coke oven raw gas (650-750°C) accounts for about 36% of the coking heat supply, and a large amount of sensible heat is absorbed by the condensed ammonia water sprayed by the bridge tube. The recovery gas purification system not only consumes a large amount of ammonia water, increases the power consumption of the system, and deteriorates the operating environment of the coke oven, but also fails to recycle the sensible heat of the raw gas, resulting in energy waste, increasing the amount of coking wastewater produced and treated, and increasing environmental pollution and Processing costs. Therefore, the research on sensible heat recovery of raw coke oven ga...

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Problems solved by technology

However, the deficiencies of this application are: (1) the riser superheater in this application has potential safety hazards such as dry pot bursting, which is also the "coke oven riser gasification cooling device" in the 1970s and 1980s. The failure of the application is the main reason for the stagnation of the development of gas waste heat recovery technology in the rising pipe; the superheater is installed in the rising pipe, once the heat exchange medium in the superheater leaks, it will inevitably affect the coke oven production, resulting in a high probability of production accidents (2) There is no reasonable solution to the problem of tar condensation and coking generated after the heat exchange of the bridge tube. More importantly, the space structure at the bridge tube is narrow, and the layout of the heating surface is affected, so it is impossible to fully recover the waste gas waste heat resources , making it difficult to promote

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