Slide manhole door of boiler

Abstract

The invention relates to the technical field of boiler fittings, and particularly relates to a slide manhole door of a boiler. The slide manhole door comprises a door body arranged above a manhole ina covering manner, wherein the door body is divided into a left door plate and a right door plate which are symmetrically arranged; slide grooves used for allowing the door body to slide are formed inthe parts at the two sides of the manhole, of the outer wall of the boiler; slide blocks adaptive to the slide grooves are arranged on the inner side surfaces of the left door plate and the right door plate; a clamping element used for limiting is arranged at the spliced ends of the left door plate and the right door plate; the slide blocks are welded and fixed to the inner side surface of the door body, and arranged at one side away from the manhole, of the door body; semicircular bosses facilitating the clamping element to be located are symmetrically arranged at the spliced end of the leftdoor plate and the right door plate; and the clamping element is a clamp sleeving the peripheries of the semicircular bosses at the two sides. The door body is divided into the left door plate and the right door plate through forming the slide grooves in the outer wall of the boiler, so that slide opening-closing for the door body is realized, and the operation is time-saving and labor-saving; and moreover, the spliced surface of the parts at the two sides, of the door body, is fixed and limited through the clamp with a locking bolt, high splicing stability and sealing performance are achieved, and the use efficiency of the boiler is effectively increased.

Description

technical field [0001] The invention relates to the technical field of boiler accessories, in particular to a sliding boiler manhole door. Background technique [0002] The boiler manhole is the hole through which maintenance personnel enter the container during boiler maintenance or supervisory inspection. It is for installing, dismantling, cleaning and overhauling the internal devices of the equipment. The structure of the hand hole is basically the same as that of the manhole. It is composed of a blind plate. The diameter of the hand hole is generally 150~250mm. It should allow the hand of the worker wearing gloves and holding the tool to pass through easily. The nominal diameter of the standardized hand hole is DN150 and DN250. When the diameter of the equipment exceeds 900mm , Manholes should be opened. The manhole door of the existing gas-fired boiler generally fixes the door body on the manhole through flange bolts, and manual operation is required for opening and cl...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the opening and closing of the existing door body is laborious, the present invention provides a sliding boiler manhole door. By adding a slideway on the outer wall of the boiler, the door body can be opened and closed by sliding.

Images