CN201940216U

CN201940216U - Central pipe support

Info

Publication number: CN201940216U
Application number: CN2010206282348U
Authority: CN
Inventors: 胡庆均; 王冕; 张盈满; 韩江联; 朱玫
Original assignee: China Petroleum and Chemical Corp; Sinopec Luoyang Petrochemical Engineering Corp
Priority date: 2010-11-22
Filing date: 2010-11-22
Publication date: 2011-08-24
Anticipated expiration: 2020-11-22

Abstract

The utility model provides a central pipe support which mainly consists of a connecting seal head, a base external cylinder, a base internal cylinder and a support base plate. One end of the base external cylinder is welded with the edge of the support base plate, and the other end of the base external cylinder is connected with the connecting seal head by a bolt; the base internal cylinder is welded with the support base plate, and a concentric-circle circular catalyst channel is formed between the base internal cylinder and the base external cylinder and is communicated with circumferential openings of the support base plate which is circular, the centre is a central hole for the materials to pass through, and a material channel is formed commonly by the base internal cylinder and the central hole; and an annular stair platform is arranged in the base internal cylinder, and a plurality of positioning bolt holes are uniformly distributed on the cylinder wall above the annular stair platform along the circumference direction. With the adoption of the base internal cylinder with the annular stair platform and the positioning bolt holes, the central pipe is positioned on the annular stair platform and is fixed through the positioning bolts and the positioning bolt holes along the circumference direction, thereby improving the operation security of the equipment and stabling the whole reaction process.

Description

A kind of central tube bearing

Technical field

The utility model relates to a kind of central tube bearing, relates to the central tube bearing of radial reactor in a kind of catalytic reforming unit specifically.

Background technology

Central tube is that reforming reactor mainly reaches the core internals, is the passage of oil gas turnover, is to isolate catalyst, realizes that the cross-flow of gas-solid two-phase contacts the critical component that carries out catalytic reaction.And the bearing of central tube is a critical component of reforming reactor internals design as the lower support structure of central tube.

U.S. Universal Oil Products Company (UOP) and domestic existing reforming reactor central tube seat structure are comparatively complicated, and the central tube lower end is that a U-shaped stretches out structure, fixes by a bolt and base plate, and bolt failure then easily has an accident.The bottom base plate connects by bolt in addition, also has the reinforcement version of many different structures and model, and complex structure, installing/dismounting are very inconvenient.

The utility model content

In order to solve the easy technical problem that lost efficacy of single bolting that existing central tube bearing exists, the utility model provides a kind of central tube bearing, this bearing can be avoided single bolting failure accidents, has improved the equipment safety in operation, has stablized entire reaction course.

The central tube bearing that the utility model provides is mainly by connecting end socket, base urceolus, base inner core and supporting base plate and form.Support base plate and be uniformly distributed with some circumferential perforates that supply catalyst to pass through along the circumference; Base urceolus one end welds mutually with the support base panel edges, the other end be connected end socket and connect by bolt; The base inner core welds mutually with supporting base plate, its with the base urceolus between form concentric circles annular catalyst channels, this concentric circles annular catalyst channels communicates with the circumferential perforate of support base plate; Wherein, the support base plate is an annular, the centre bore of center for passing through for material, and base inner core and centre bore are formed material channel jointly; Base inner core inside is provided with a ring-type halfpace, along the circumferential direction is evenly equipped with some positioning bolt holes on the barrel of ring-type halfpace top.

Owing to adopted base inner core and the positioning bolt hole that is provided with the ring-type halfpace, central tube places on the halfpace, circumferentially is fixed by bolt and positioning bolt hole edge, has improved the equipment safety in operation, stablized entire reaction course, the failure accidents of having avoided single bolting to cause.

As further improved plan, on the ring-type halfpace of base inner core and barrel inboard, ring commentaries on classics halfpace top is provided with three-layer sealed circle.Because sealing ring can further improve the sealing effectiveness between base inner core and the central tube, isolate charging and reacting rear material, eliminated leakage path, further guarantee equipment safety operation.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of central tube bearing of the present utility model;

Fig. 2 is the structural representation that supports base plate 1 among Fig. 1;

Fig. 3 is the assembling schematic diagram of central tube and bearing;

Among the figure, 1-supports base plate, 2-base inner core, and 3-base urceolus, 4-connects end socket, 5-central tube, 6-reactor shell, 7-centre bore, the circumferential perforate of 8-, 9-positioning bolt hole, 10-bolt, 11-sealing ring

The specific embodiment

As shown in Figure 1, the central tube bearing mainly is made up of the support base plate 1 that connects end socket 4, base urceolus 3, base inner core 2 and annular.Support base plate 1 center and have the centre bore 7 that passes through for material, be uniformly distributed with some circumferential perforates 8 that supply catalyst to pass through along the circumference; Base inner core 2 is welded in and supports base plate 1 centre bore 7 tops, with the centre bore 7 common material channels of forming; Base urceolus 3 one ends weld mutually with support base plate 1 edge, the other end be connected end socket 4 and connect by bolt, the other end that connects end socket 4 welds mutually with reactor shell 6, form concentric circles annular catalyst channels between base urceolus 3 and the base inner core 2, this concentric circles annular catalyst channels communicates with the 1 circumferential perforate 8 of support base plate; Wherein, base inner core 2 inside are provided with a ring-type halfpace, along the circumferential direction are evenly equipped with some positioning bolt holes 9 on the barrel of ring-type halfpace top, and central tube 5 places on this ring-type halfpace.

Fig. 2 is the structural representation that supports base plate 1 among Fig. 1, and supporting base plate 1 is annular, the some circumferential perforates 8 of circumference uniform distribution, and the center is a centre bore 7.

Fig. 3 is the assembling schematic diagram of central tube and bearing, and central tube 5 places on the ring-type halfpace of base inner core 2 inside, circumferentially is fixed by positioning bolt hole on the barrel 9 and bolt 10 edges; In order to improve sealing effectiveness, the ring-type halfpace of base inner core 2 and barrel inboard, ring-type halfpace top are equipped with sealing ring 11, and sealing ring 11 is established three layers altogether, establishes one deck on the ring-type halfpace, and barrel inboard, ring-type halfpace top is established two-layer.

Claims

1. a central tube bearing is mainly formed by connecting end socket, base urceolus, base inner core and support base plate; Support base plate and be uniformly distributed with some circumferential perforates that supply catalyst to pass through along the circumference; Base urceolus one end welds mutually with the support base panel edges, the other end be connected end socket and connect by bolt; The base inner core welds mutually with the support base plate, form concentric circles annular catalyst channels between itself and the base urceolus, this concentric circles annular catalyst channels communicates with the circumferential perforate of support base plate, it is characterized in that: the support base plate is an annular, the centre bore of center for passing through for material, base inner core and centre bore are formed material channel jointly, and base inner core inside is provided with a ring-type halfpace, along the circumferential direction are evenly equipped with some positioning bolt holes on the barrel of halfpace top.

2. central tube bearing according to claim 1 is characterized in that: on the ring-type halfpace of described base inner core and barrel inboard, ring-type halfpace top is provided with three-layer sealed circle.