CN102168772B

CN102168772B - Rotation supporting mechanism of gas phase method full-density polyethylene reactor outlet elbow

Info

Publication number: CN102168772B
Application number: CN 201110048141
Authority: CN
Inventors: 王明臣; 王艳杰; 于春梅
Original assignee: Petrochina Jilin Petrochemical Co
Current assignee: Petrochina Jilin Petrochemical Co
Priority date: 2011-02-24
Filing date: 2011-02-24
Publication date: 2012-10-31
Anticipated expiration: 2031-02-24
Also published as: CN102168772A

Abstract

The invention discloses a rotation supporting mechanism of a gas phase method full-density polyethylene reactor outlet elbow. The mechanism is characterized in that a reinforcing plate is welded on a straight pipe section below a polymer reactor outlet elbow and a connecting flange of the polymer reactor; four supporting pipes or supporting plates are symmetrically welded on the reinforcing plate, an upper layer disk is newly arranged at the position of 10-15mm below the reinforcing plate, and is positioned at a lower layer disk through a bearing installed on a disk bite plate or a self-control ball support; the lower layer disk is fixed on the ground through a disk supporting column and a ground fixed disk which are welded at the lower part of the lower layer disk; the inner side of a bin side pipeline joint connecting flange on the polymer reactor outlet elbow is newly provided with an elbow support; the lower part of the elbow support is welded on a sliding wheel shaft through an elbow supporting beam and an elbow supporting beam supporting column; and sliding wheels at two sides of the sliding wheel shaft are clamped in an arc-shaped slide way. According to the invention, less overhauling personnel are required, a hoist crane is not required, flange bolts at two ends are only required to be dismounted, and the switching between two bin pipelines for the elbow can be realized.

Description

Gas-phase method total density polyvinyl reactor outlet bend pipe rotary support mechanism

Technical field

The invention belongs to gas-phase method total density polyvinyl reactor outlet bend pipe rotary support mechanism.

Background technique

The gas-phase method total density polyvinyl device, the generally all corresponding two or more feed bins of polymer reactor outlet, but the outlet bend pipe has only one; Can only link to each other with a feed bin when also just saying the reactor ordinary production, along with bin-level changes, often the reactor outlet feed bin switched in process of production; Switching method is that flange between reactor outlet and the bend pipe is broken off, and bend pipe and go the short circuit between the feed bin pipeline to take apart forwards bend pipe to and will switch the feed bin pipeline side of reaching the standard grade; Again with bend pipe with reactor and go the feed bin pipeline to be connected, because of the reactor outlet bend pipe can't carry out fixed support, in taking flange and short circuit process apart; To through welding lifting earrings on the bend pipe bend pipe be sling and could operate with hoist crane; Each bend pipe is transferred and could be accomplished to all wanting many people to operate, and brings inconvenience to production, simultaneously; The outlet bend pipe only leans on a sliding support point support with reactor flange connecting and short circuit place, causes that pipeline shakes serious hidden danger in the outlet line discharging process.

Content of the present invention

The object of the invention is in order to solve the problem that existing technology exists; A kind of gas-phase method total density polyvinyl reactor outlet bend pipe rotary support mechanism is provided; Realization response device outlet feed bin switches fast, can reduce maintainer about 1/2, makes things convenient for steady production; For outlet line has increased by two strong points, the discharging pipeline is shockproof simultaneously.

Technological scheme of the present invention is: gas-phase method total density polyvinyl reactor outlet bend pipe rotary support mechanism is characterized in that: welding stiffening plate on the straight length below the adpting flange of polymer reactor outlet bend pipe and polymer reactor; On this stiffening plate, be symmetrically welded with four support tubes or dunnage, the upper strata disk that 10-15mm place newly is provided with below it is on lower floor's disk through disk biteplate installation bearing or self-control ball support; Lower floor's disk is fixed on the ground through disk supporting post, the ground fixed disc that is welded on its bottom; Feed bin side pipe line short circuit adpting flange on polymer reactor outlet bend pipe is inboard, newly is provided with the bend pipe conduit saddle; This conduit saddle below is welded on the pulley spindle through conduit saddle supporting traverse, conduit saddle supporting traverse supporting post, and the pulley of pulley spindle both sides snaps onto in the circular arc slideway.

The present invention and existing technology are than having following obvious improvement and positive effect:

(1) only needs less maintainer's operation,, only need to remove two ends adpting flange bolt, just can realize the quick switching of bend pipe between two feed bin pipelines through rotation without hoist crane.

(2) maintenance can reduce 1/3-1/2 from the member, obviously alleviates labor intensity of operating personnel.

(3), be on lower floor's disk through disk biteplate installation bearing or self-control ball support owing to the new addition of the present invention upper strata disk; Lower floor's disk is fixed on the ground through disk supporting post, the ground fixed disc that is welded on its bottom.Disk rotates on one, and two have had firm new support.Feed bin side pipe line short circuit adpting flange on polymer reactor outlet bend pipe is inboard, newly is provided with the bend pipe conduit saddle; This conduit saddle below is welded on the pulley spindle through conduit saddle supporting traverse, conduit saddle supporting traverse supporting post; The pulley of pulley spindle both sides snaps onto in the circular arc slideway, from and increased new support, make that pipeline does not shake in the discharging process; Realize switching long-period stable operation fast.

Description of drawings

Fig. 1 is the vertical sectional structure chart of the present invention;

Fig. 2 is an A-A sectional view of the present invention;

Fig. 3 is a B-B sectional view of the present invention;

Fig. 4 is a C-C sectional view of the present invention; Among the figure:

1-support tube (or dunnage); 2-bearing or ball support; 3-disk interlock frid; 4-upper strata disk; The 5-polymer reactor; 6-lower floor disk; 7-lower floor disk supporting post; The ground fixed disc that 8-supports; 9-bend pipe conduit saddle; 10-conduit saddle supporting traverse; 11-conduit saddle supporting traverse supporting post; The 12-pulley; The 13-pulley spindle; 14-circular arc slideway; The flange that 15-links to each other with feed bin pipeline side short circuit; 16-polymer reactor outlet bend pipe; 17-reactor and bend pipe adpting flange.

Embodiment

Through embodiment and accompanying drawing the present invention is further specified as follows at present;

See Fig. 1, Fig. 2, Fig. 3, Fig. 4, reactor outlet bend pipe rotary support mechanism at polymer reactor 5 outlet bend pipes 16, and welds stiffening plate on the adpting flange 17 below straight lengths of polymer reactor 16; Four support tubes of symmetry welding or dunnage 1 (like Fig. 2) on this stiffening plate, bearing or self-control ball support 2 that the upper strata disk 4 that 10-15mm place newly is provided with below it is installed through disk biteplate 3 are in (see figure 3) on lower floor's disk 6; Lower floor's disk is fixed to (see figure 1) on the ground through the disk supporting post 7 that is welded on its bottom with ground fixed disc 8; The radius of last lower disc must not be less than the length of the support tube 1 of welding on the outlet bend pipe 16, and feed bin side pipe line short circuit adpting flange 15 inboards on the outlet bend pipe 16 newly are provided with bend pipe conduit saddle 9; This conduit saddle below is welded on the pulley spindle 13 through conduit saddle supporting traverse 10 and conduit saddle supporting traverse supporting post 11; The pulley 12 of pulley spindle 13 both sides snaps onto in the circular arc slideway 14; Whole sliding trace be as the criterion (seeing Fig. 1, Fig. 2, Fig. 4) when the radius of circular arc slideway 14 switches with polymer reactor outlet bend pipe 16.

Reactor outlet bend pipe rotary support mechanism of the present invention; When polymer reactor outlet connection feed bin need switch; Break off the short circuit between polymer reactor outlet bend pipe and the feed bin pipeline earlier; Remove the bolt on the adpting flange between polymer reactor and the polymer reactor outlet bend pipe, the support tube that welds on the bend pipe is fallen on the disk of rotatable upper strata naturally.At this moment, the bend pipe conduit saddle that the reactor outlet bend pipe leans on upper strata disk, feed bin pipeline side adpting flange side to have pulley supports, and operator only need promote bend pipe, and the feed bin end is moved to be switched feed bin direction, and bend pipe is supported on the disk of upper strata; The upper strata disk rotates on lower floor's disk through bearing or ball support; Have pulley under the bend pipe conduit saddle of pulley in the acting in conjunction of the rolling of circular arc slideway, polymer reactor outlet bend pipe is turned to more easily will connect feed bin one side pipe line place.

Claims

1. gas-phase method total density polyvinyl reactor outlet bend pipe rotary support mechanism is characterized in that: welding stiffening plate on the straight length below the adpting flange of polymer reactor outlet bend pipe and polymer reactor; On this stiffening plate, be symmetrically welded with four support tubes or dunnage, the upper strata disk that 10-15mm place newly is provided with below it, bearing or the self-control ball support installed through the disk biteplate are on lower floor's disk; Lower floor's disk is fixed on the ground through disk supporting post, the ground fixed disc that is welded on its bottom; Feed bin side pipe line short circuit adpting flange on polymer reactor outlet bend pipe is inboard, newly is provided with the bend pipe conduit saddle; This conduit saddle below is welded on the pulley spindle through conduit saddle supporting traverse, conduit saddle supporting traverse supporting post, and the pulley of pulley spindle both sides snaps onto in the circular arc slideway.