A new type of heating furnace with multi-hearth structure and its design method and application

A furnace structure and heating method technology, applied in lighting and heating equipment, furnace types, furnaces, etc., can solve the problems of device parking and other problems, and achieve the effects of easy operation, prolonging the cycle of device parking, and high degree of automation

Active Publication Date: 2016-11-16
CATECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to solve the problems of the prior art, the present invention proposes a new type of heating furnace with a multi-hearth structure. When the heating furnace tube in one furnace is affected by factors such as corrosion, coking and blockage, the operation is automatically or manually switched to another furnace. Realize continuous operation, which fundamentally solves the problem of device shutdown caused by coking of the furnace tube

Method used

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  • A new type of heating furnace with multi-hearth structure and its design method and application

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Embodiment

[0035] This example figure 1 As shown, it is applied to residuum heating. The furnace body includes A furnace 3 and B furnace 4; the burner 2 is a strong mixed burner, including a combustion gas feed port 12, which can heat both furnaces. Each furnace is respectively provided with A furnace furnace tube differential pressure gauge 8 and B furnace furnace tube differential pressure gauge 9 between the inlet and the outlet, and between the inlet of the furnace body and the feed pipeline 1 is a feed space 13, That is, the space in the furnace body between the burner 2 and the two furnaces, the material to be heated first enters the feeding space 13 after entering the furnace body from the feed pipe 1, and the entrance of each furnace includes adiabatic, openable and closed A furnace switching board 10 and B furnace switching board 11, when the switching board is opened, the material enters the corresponding opened furnace from the feeding space, and each furnace includes A furna...

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Abstract

Provided are a novel heating furnace having a multi-hearth structure, and method and use thereof. The heating furnace comprises a feed channel (1), a combustor (2), a furnace body and a collection outlet channel (7). The number of the combustor (2) is one. The furnace body comprises at least two hearths (3, 4) therein. An inlet of each hearth (3, 4) comprises a heat-insulated switch-board (10, 11) capable of being opened and closed. Remote differential pressure gauges (8, 0) are respectively provided between an inlet and an outlet of each hearth (3, 4). A feed space (13) is formed between the combustor (2) and the hearths (3, 4). The feed channel (1) communicates with the feed space (13). Each hearth (3, 4) comprises an outlet channel (5, 6). A heat-insulating filler is filled between the adjacent hearths (3, 4). Without changing a furnace tube configuration, a furnace tube material and the number of the combustor, when a hearth has a problem, a heating operation can be timely switched to another hearth without suspending normal operation for a heating furnace overhaul, thereby extending an operation suspension interval of a device required by the heating furnace overhaul, improving operation stability of the device, and eliminating a need of installing a spare furnace and accordingly reducing the cost.

Description

technical field [0001] The invention relates to a novel heating furnace with a multi-hearth structure, which belongs to the fields of petrochemical and coal chemical industries. Background technique [0002] Heating furnace is a kind of heating equipment widely used in petroleum, chemical industry, metallurgy, electric power and natural gas industries. Its function is to use oil or gas as fuel to heat oil or other media. To meet the temperature requirements of downstream equipment for process streams. In the petrochemical industry, tubular heating furnaces have been widely used as a heating means to provide heat energy for petrochemical production. [0003] Tube heating furnace generally consists of five parts: radiation chamber, convection chamber, waste heat recovery system, burner and ventilation system. Furnace tubes are installed in the radiation chamber and the convection chamber, and this part is directly subjected to flame grilling, and the temperature is the highe...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F27B17/00
CPCF27B17/00
Inventor李苏安邓清宇王坤朋
OwnerCATECH TECH