CN-224214552-U - Anti-loosening protective cover for gasification furnace top cover bolt

CN224214552UCN 224214552 UCN224214552 UCN 224214552UCN-224214552-U

Abstract

The utility model discloses a locking protective cover for a top cover bolt of a gasification furnace, which relates to the field of gasification furnaces and comprises an outer protective shell, an end head, a connecting part and a pressing part, and is characterized in that the outer protective shell is sleeved on the outer side of the bolt and fixedly connected to the top of the top cover; the end cover is arranged at the top opening of the outer protective shell, the connecting part is used for connecting the end cover and the outer protective shell, so that the end cover is detachably arranged at the top end of the outer protective shell, the sealing connection between the top cover and the combustion chamber of the gasifier is guaranteed, medium leakage is prevented, the bolts are completely sealed by the outer protective shell and the end cover, corrosion of high-temperature corrosion or dust environment to the surfaces of the bolts is isolated, the service life of the bolts is prolonged, loosening risks are reduced, and the safety and stability of the gasifier are improved.

Inventors

LIU KUNYANG
HUANG FUYUN
GU JUNNAN
HUO XIAOYONG

Assignees

河南金大地化工有限责任公司

Dates

Publication Date: 20260508
Application Date: 20250515

Claims (7)

1. The anti-loosening protective cover for the top cover bolt of the gasification furnace comprises an outer protective shell, an end socket, a connecting part and a pressing part and is characterized in that the outer protective shell is sleeved on the outer side of the bolt and fixedly connected to the top of the top cover; The end cover is arranged at the top opening of the outer protective shell, and the connecting component is used for connecting the end cover and the outer protective shell, so that the end cover is detachably arranged at the top end of the outer protective shell; The pushing component is arranged at the bottom of the end cover and extends into the outer protective shell for pushing the screw head or the nut.
2. The gasifier head bolt anti-loosening protective cover of claim 1, wherein the outer protective shell is fixedly connected with the head cover in a welding mode.
3. The gasification furnace top cover bolt anti-loosening protective cover of claim 2, wherein the bottom end of the outer protective shell is sleeved with a bottom ring, and the bottom ring is welded and fixed on the top of the top cover.
4. The gasifier head bolt anti-loosening protective cover of claim 1, wherein the connecting component is a buckle.
5. The gasifier roof bolt anti-loosening protective cover of claim 1, wherein the inner diameter of the outer protective shell is larger than the outer diameter of the bolt.
6. The gasifier head bolt anti-loosening protective cover of claim 1, wherein the pressing component is a rigid pressing block.
7. The gasifier head bolt anti-loosening protective cover of claim 1, wherein the pressing component comprises a C-shaped pressing block and a threaded rod, the C-shaped pressing block is provided with a through hole penetrating up and down, a fixing nut is fixedly welded at the top of the C-shaped pressing block, and the threaded rod is fixedly welded at the bottom of the end cover and is in threaded connection with the fixing nut.

Description

Anti-loosening protective cover for gasification furnace top cover bolt Technical Field The utility model belongs to the field of gasifiers, and particularly relates to a looseness-preventing protective cover for a top cover bolt of a gasifiers. Background In modern industrial production, gasifiers are used as core equipment and carry the important task of converting solid or liquid feedstock into synthesis gas. The working process is in an extreme environment of high temperature, high pressure and strong corrosion, and strict requirements are put on the stability and reliability of all parts of the equipment. The sealing connection between the gasification furnace top cover and the combustion chamber is usually fastened by high-strength bolts (such as M64X 520mm and 35 CrMoA). In actual operation, the gasifier is in high temperature, vibration and alternating load working conditions for a long time, and the bolts are easy to loosen due to stress relaxation and mechanical vibration, so that the sealing is invalid, and medium leakage and even safety accidents are caused. In addition, the surface of the bolt is easy to erode in high-temperature corrosion or dust environment for a long time, the mechanical strength of the bolt is reduced, the loosening risk is increased, and the safe and stable operation of the gasifier is seriously influenced. At present, the effect of the traditional anti-loosening measures (such as double nuts, spring washers and the like) is limited under extreme working conditions, and the conventional protective cover can only isolate part of environmental erosion and cannot actively inhibit loosening. Therefore, we propose a gasification furnace roof bolt anti-loosening protective cover to solve the above problems. Disclosure of utility model Aiming at the problems that at present, the traditional anti-loosening measures (such as double nuts, spring washers and the like) have limited effect under extreme working conditions, and the conventional protective cover can only isolate part of environmental erosion and can not actively inhibit loosening, the utility model provides an anti-loosening protective cover for a top cover bolt of a gasification furnace. The technical problem of the utility model is solved by adopting the scheme that the anti-loosening protective cover for the top cover bolt of the gasification furnace comprises an outer protective shell, an end socket, a connecting part and a pressing part, and is characterized in that the outer protective shell is sleeved on the outer side of the bolt and fixedly connected to the top of the top cover; The end cover is arranged at the top opening of the outer protective shell, and the connecting component is used for connecting the end cover and the outer protective shell, so that the end cover is detachably arranged at the top end of the outer protective shell; The pushing component is arranged at the bottom of the end cover and extends into the outer protective shell for pushing the screw head or the nut. Preferably, the outer protective shell is fixedly connected with the top cover in a welding mode. Preferably, the bottom end of the outer protective shell is sleeved with a bottom ring, and the bottom ring is welded and fixed at the top of the top cover. Preferably, the connecting component is a buckle. Preferably, the inner diameter of the outer protective shell is larger than the outer diameter of the bolt. Preferably, the hold-down member is a rigid compact. Preferably, the pressing component comprises a C-shaped pressing block and a threaded rod, wherein a through hole penetrating through the C-shaped pressing block vertically is formed in the C-shaped pressing block, a fixing nut is fixedly welded at the top of the C-shaped pressing block, and the threaded rod is fixedly welded at the bottom of the end cover and is in threaded connection with the fixing nut. Compared with the prior art, the utility model has the beneficial effects that: 1. According to the gasification furnace, the pressing part is arranged at the bottom of the end cover, and continuous pressing force is applied to the bolt head or the nut, so that looseness of the bolt caused by stress relaxation and mechanical vibration is effectively restrained, sealing connection between the top cover of the gasification furnace and the combustion chamber is ensured, medium leakage is prevented, the bolt is completely sealed by the outer protective shell and the end cover, corrosion of high-temperature corrosion or dust environment on the surface of the bolt is isolated, the service life of the bolt is prolonged, the looseness risk is reduced, and the safety and stability of the gasification furnace are improved. 2. According to the utility model, through the design of the end cover connected by the hasp, the quick opening and closing of the end cover are realized, and when the bolt is required to be inspected, detached or fastened regularly, the whole protection device is