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A high-temperature flue manhole door device

A technology of high-temperature flue and manhole door, which is applied to exhaust gas devices, combustion methods, lighting and heating equipment, etc., can solve the problems of inconvenient use, and achieve the goal of avoiding smoke, ingenious and novel ideas, and tight fit Effect

Active Publication Date: 2018-02-23
中国船舶重工集团公司第七〇三研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a high-temperature flue manhole door device to solve the problems of inconvenient use and the like raised in the above-mentioned background technology

Method used

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  • A high-temperature flue manhole door device
  • A high-temperature flue manhole door device
  • A high-temperature flue manhole door device

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Embodiment Construction

[0014] Referring to the accompanying drawings, a high-temperature flue manhole door device includes a manhole door frame 3, and the two sides of the manhole door frame 3 are respectively embedded with a door cover plate 1 and a sealing plate to form a hollow structure door body. The interior of the body is provided with an inner layer heat preservation bag assembly 4 and an outer layer heat preservation bag assembly 2, the inner layer heat preservation bag assembly 4 is close to the sealing plate, the outer layer heat preservation bag assembly 2 is close to the door cover plate 1, and the door cover The plate 1 is provided with a handle and a rotating arm mechanism, and when opened, it is rotated to a certain angle by means of the rotating arm. The outer thermal insulation assembly and the inner thermal insulation assembly are fixed by bolts, which can replenish and replace the thermal insulation material in the package in time. The manhole door frame 3 is embedded on the flue,...

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Abstract

A manhole door device of a high-temperature flue comprises a manhole door frame, wherein a door cover plate and a sealing plate are embedded in two sides of the manhole door frame respectively to form a door body adopting a hollow structure, an inner-layer heat-insulating bag assembly and an outer-layer heat-insulating bag assembly are arranged inside the door body, the inner-layer heat-insulating bag assembly is close to the sealing plate, the outer-layer heat-insulating bag assembly is close to the door cover plate, and a handle and a tumbler mechanism are arranged on the door cover plate. The manhole door device is reasonable in structural design and ingenious and novel in concept and adopts the inner-and-outer-layer soft heat-insulating bag structure, so that heat-insulating cloth can be uncovered for addition of aluminium silicate fiber felt as required each time of overhauling, and the circularity of heat-insulating bags is kept. Angle steel on an outer-layer heat-insulating bag is 30 mm wide, and certain pre-tightening space is provided when the door cover plate is closed, so that the outer-layer heat-insulating bag and an inner-layer heat-insulating bag are attached to each other more compactly, and smoke channeling is avoided.

Description

technical field [0001] The invention relates to a flue gas passage door device, in particular to a high-temperature flue manhole door device. Background technique [0002] The manhole door on the high-temperature flue gas passage is a passage for personnel to enter and exit the boiler for internal maintenance or inspection. At present, manhole doors are generally not sealed tightly after long-term operation, causing smoke to flow, and the paint near the manhole door is baked by high temperature, which brings certain troubles to the maintenance work of the power plant. Most of the existing manhole door devices use rigid insulation bags, which cannot be effectively compressed. After long-term high temperature causes expansion, the gap between the manhole door frame and the manhole door frame becomes smaller, and it cannot even be opened during maintenance. Contents of the invention [0003] The present invention provides a high-temperature flue manhole door device to solve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J13/08
CPCF23J13/08F23J2213/30
Inventor 董自春赵煜徐进
Owner 中国船舶重工集团公司第七〇三研究所
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