Man hole for sealing head of tube bundle drier

Abstract

Provided is a man hole for a sealing head of a tube bundle drier. The man hole comprises man hole rings, the sealing head, man hole pressing plates, at least one stud arranged at the top end of the sealing head, and pressing flanges arranged at the bottom end of the sealing head. The sealing head is sleeved inside the man hole rings in an embedding mode. The pressing flanges arranged at the bottom end of the sealing head are matched with the bottom ends of the man hole rings. The man hole pressing plates are sleeved on the stud at the top end of the sealing head. The two ends of each man hole pressing plate are erected on the man hole rings. Screwing nuts are arranged above the man hole pressing plates and are screwed downwards, so that the bottom ends of the man hole rings and the pressing flanges are sealed tightly in a pressing mode. The sealing head is egg-shaped and is light in weight and convenient to use, and fewer materials are used. According to the man hole, the problem that when a tube core of the tube bundle drier is maintained, a man hole pressing cover is difficult to take out and the man hole is difficult to open by maintenance personnel is solved effectively.

Description

technical field [0001] The invention belongs to the field of drying equipment manufacturing, in particular to a manhole for a tube bundle dryer. Background technique [0002] At present, the head of the tube bundle dryer on the market is for example: GZG type. Its manhole is an important part to ensure that people can enter the inside of the head for maintenance when the tube core of the tube bundle dryer fails. When the tube core fails and maintenance personnel need to enter the inside of the head for maintenance, they must first unscrew the nut, then remove the manhole pressure plate, and finally take out the manhole gland and gasket, and then the maintenance personnel enter the inside of the head for maintenance. The manhole gland for the manhole of the dryer head generally adopts a flat head, which is thick and of high quality. If there is no lifting equipment on site, it is difficult to remove it by manpower alone, which brings many difficulties to the maintenance work....

AI Technical Summary

Problems solved by technology

[0002] At present, the head of the tube bundle dryer on the market is for example: GZG type. Its manhole is an important part to ensure that people can enter the inside of the head for maintenance when the tube core of the tube bundle dryer fails. When the tube core fails and maintenance personnel need to enter the inside of the head for maintenance, they must first unscrew the nut, then remove the manhole pressure plate, and finally take out the manhole gland and gasket, and then the maintenance personnel enter the inside of the head for maintenance. The manhole gland for the manhole of the dryer head generally adopts a flat head, which is thick and of high quality. In the absence of lifting equipment on site, it is difficult to remove it by manpower alone, which brings many difficulties to the maintenance work.

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