CN203479111U

CN203479111U - Self-sewage discharge high-efficiency heat collecting pipe and self-sewage discharge high-efficiency external heat collector

Info

Publication number: CN203479111U
Application number: CN201320411665.2U
Authority: CN
Inventors: 许永伟; 程高锋
Original assignee: Luoyang Ruichang Petro Chemical Equipment Co Ltd
Current assignee: Luoyang Ruichang Environmental Engineering Co ltd
Priority date: 2013-07-11
Filing date: 2013-07-11
Publication date: 2014-03-12
Anticipated expiration: 2023-07-11

Abstract

The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a self-sewage discharge high-efficiency heat collecting pipe and a self-sewage discharge high-efficiency external heat collector. The self-sewage discharge high-efficiency heat collecting pipe consists of a steam and water mixture sleeve tube (4-1) and a water feeding pipe (4-5), wherein the water feeding pipe (4-5) is positioned in the steam and water mixture sleeve tube, a sewage discharge pipe (4-7) is arranged in an annular cavity between the water feeding pipe (4-5) and the steam and water mixture sleeve tube (4-1), and is fixedly arranged on the water feeding pipe (4-5), the lower end of the sewage discharge pipe (4-7) is provided with a sewage suction head (4-10), and the sewage suction head (4-10) is positioned between the outlet of the lower end of the water feeding pipe and a sealing head (4-2) at the bottom of the pipe, and is provided with a plurality of small holes. The heat collecting pipe and the external heat collector have the advantages that the problem of unable high-efficiency discharge of high-scale sewage of the prior art is solved, the heat resistance of scale is reduced, the heat transfer coefficient and heat conducting efficiency are improved, and the occurrence of explosion of the heat collecting pipe is reduced.

Description

A kind of from the efficient heat removing tube of blowdown and from the efficient external warmer of blowdown

Technical field

The utility model belongs to heat transmission equipment technical field, is specifically related to a kind of from the efficient heat removing tube of blowdown and from the efficient external warmer of blowdown.

Background technology

In fluid bed catalyst reaction device, catalyst circulates between reactor and regenerator; The catalyst of inactivation coke burning regeneration in regenerator, the catalyst circulation after regeneration is returned reactor, typical in heavy oil catalytically cracking equipment.Catalyst burning reaction and will emit a large amount of heats in regenerator, for controlling regenerator temperature, need, the external warmer mode heat removal of (claiming again catalyst cooler or powder cooler) need to be set, to maintain system thermal balance, guarantee steadily carrying out of technological operation.Meanwhile, external warmer also utilizes this part superfluous heat generation steam, becomes an important conservation measures in catalytic cracking unit.External warmer is because heat-obtaining amount is large, operate nimble, very extensive in industrial application.

Existing external warmer has multiple pattern, as finned tube external warmer, studded tube external warmer etc., the problem of existence is: heat removing tube cannot effectively be got rid of the height dirt sewage that water evaporation process produces, cause heat removing tube and tedge encrustation serious, reduce heat-transfer effect and cause heat removing tube booster; Especially when water quality is abnormal.

Utility model content

The purpose of this utility model is that proposition is a kind of from the efficient heat removing tube of blowdown and from the efficient external warmer of blowdown, can solve prior art heat removing tube and cannot effectively get rid of high dirty sewage, causes the problem of heat-transfer effect reduction and heat removing tube booster.

For completing above-mentioned purpose the utility model, adopt following technical scheme:

From the efficient heat removing tube of blowdown, described heat removing tube, for by steam water interface sleeve pipe and the enclosed construction that the feed pipe that is positioned at steam water interface sleeve pipe forms, forms a heat transfer unit with independent water-vapour loop; The outer surface of described steam water interface sleeve pipe is equipped with fin; Described fin is perpendicular to the outer surface setting of steam water interface sleeve pipe, and described fin is the multiple row longitudinally arranging; The welded top of described steam water interface sleeve pipe has the capping of steam water interface sleeve pipe, and bottom welding has pipe bottom (head); And on described steam water interface sleeve pipe, there is steam water interface outlet; Distance between described feed pipe lower end and steam water interface steam water interface casing pipe bottom (head) 4-2 is 1.0 ~ 1.5 times of feed pipe caliber; The water inlet of described feed pipe 4-5 upper end is through the capping of steam water interface sleeve pipe; In toroidal cavity between described feed pipe and steam water interface sleeve pipe, blow-off pipe is set, and described blow-off pipe is fixed on described feed pipe; The lower end of described blow-off pipe arranges sewage absorpting heat, and described sewage absorpting heat is between the outlet of feed pipe lower end and pipe bottom (head); On described sewage absorpting heat, there are a plurality of apertures; The upper end of described blow-off pipe, through the capping of steam water interface sleeve pipe, is positioned at the outside of steam water interface sleeve pipe.

The vertical sectional shape of described fin is rectangle, and all has several rectangle short slots on the left and right end face of fin, and the rectangle short slot interlaced arrangement on the end face of left and right.

From the efficient external warmer of blowdown, include housing and above-mentioned heat removing tube; Described housing is for vertically arranging cylinder-like structure; The top of described housing is provided with end socket; On described housing, there is gas feed and gas vent; In described housing, be provided with at least one heat removing tube; The upper end of described heat removing tube is fixed on the end socket of case top, and lower end is connected with the guiding trestle in housing; The unsettled setting of described guiding trestle; The below of described guiding trestle is provided with fluidized wind distributor, and described fluidized wind distributor is positioned at housing; In described heat removing tube, the outlet of the steam water interface of steam water interface sleeve pipe, the water inlet of feed pipe upper end are, the upper end of blow-off pipe is positioned at the outside of described external warmer.

What the utility model proposes is a kind of from the efficient heat removing tube of blowdown and from the efficient external warmer of blowdown, blow-off pipe is set in heat removing tube, solve heat removing tube in prior art and cannot effectively get rid of the problem of high dirty sewage, reduced dirtiness resistance, improve heat transfer coefficient and heat transfer efficiency, reduced the generation of heat removing tube booster phenomenon; Fin adopts the fin with rectangular notch, and that has reduced that catalyst flows in process elongated fin longitudinally climbs wall phenomenon, catalyst is flowed forms turbulent flow, augmentation of heat transfer.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model external warmer.

Fig. 2 is the structural representation of heat removing tube in the utility model.

Fig. 3 is the structural representation of fin in the utility model.

In figure: 1, gas vent, 2, housing, 3, heat removing tube, 4, gas feed, 5, end socket, 6, joint sleeve, 7, guiding trestle, 8, fluidized wind distributor, 9, dust-exhausting port, 4-1, steam water interface sleeve pipe, 4-2, pipe bottom (head), 4-3, fin, 4-4, location gusset, 4-5, feed pipe, 4-6, the capping of steam water interface sleeve pipe, 4-7, blow-off pipe, 4-8, steam water interface outlet, 4-9, blow-off pipe bearing rib, 4-10, sewage absorpting heat, 4-11, position-limiting tube.

The specific embodiment

With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:

As Fig. 2, a kind of from the efficient heat removing tube of blowdown, described heat removing tube, for by steam water interface sleeve pipe 4-1 and the enclosed construction that the feed pipe 4-5 that is positioned at steam water interface sleeve pipe forms, forms a heat transfer unit with independent water-vapour loop; The outer surface of described steam water interface sleeve pipe 4-1 is equipped with fin 4-3; Described fin 4-3 is perpendicular to the outer surface setting of steam water interface sleeve pipe, and described fin 4-3 is the multiple row longitudinally arranging; The welded top of described steam water interface sleeve pipe 4-1, on steam water interface sleeve pipe capping 4-6, is welded with a steam water interface outlet 4-8 on the steam water interface sleeve pipe 4-1 of the lower end of steam water interface sleeve pipe capping 4-6; The bottom welding of described steam water interface sleeve pipe 4-1 has pipe bottom (head) 4-2; The outer wall of described feed pipe 4-5 is welded with some location gusset 4-4, its assurance be feed pipe 4-5 in steam water interface sleeve pipe 4-1 center, the distance between feed pipe 4-5 lower end and steam water interface steam water interface casing pipe bottom (head) 4-2 is 1.0 ~ 1.5 times of feed pipe 4-4 caliber; The water inlet of described feed pipe 4-5 upper end is through steam water interface sleeve pipe capping 4-6; In toroidal cavity between described feed pipe 4-5 and steam water interface sleeve pipe 4-1, blow-off pipe 4-7 is set, described blow-off pipe 4-7 is welded to connect by blow-off pipe bearing rib 4-9 and feed pipe 4-5; The lower end of described blow-off pipe 4-7 arranges sewage absorpting heat 4-10, and described sewage absorpting heat 4-10 is between the outlet of feed pipe lower end and pipe bottom (head) 4-2; On described sewage absorpting heat 4-10, there are a plurality of apertures; The upper end of described blow-off pipe, through steam water interface sleeve pipe capping 4-6, is positioned at the outside of steam water interface sleeve pipe 4-1.Described combination Fig. 3, the vertical sectional shape of described fin 4-3 is rectangle, and all has several rectangle short slots on the left and right end face of fin 4-3, and the rectangle short slot interlaced arrangement on the end face of left and right.

As shown in Figure 1, a kind of from the efficient external warmer of blowdown, described has housing 2 from the efficient external warmer of blowdown; Described housing 2 is for vertically arranging cylinder-like structure; The top of described housing 2 is provided with end socket 5; On described housing 2, there is gas feed 4 and gas vent 1; In described housing 2, be provided with at least one heat removing tube 3; Each root heat removing tube 3 is enclosed construction; The upper end of described heat removing tube 3 is fixed on the end socket 5 of case top, and lower end is connected with the guiding trestle 7 in housing; The described unsettled setting of guiding trestle 7; The below of described guiding trestle 7 is provided with fluidized wind distributor 8, and described fluidized wind distributor 8 is positioned at housing 2.In described heat removing tube, the steam water interface of steam water interface sleeve pipe outlet 4-8, the water inlet of feed pipe 4-5 upper end is, the upper end of blow-off pipe is positioned at the outside of described external warmer.

In use procedure, the high temperature coming from outside enters external warmer containing the gas of solid particle from gas feed 4, forms one section of dense-phase bed in external warmer; Fluidized wind air enters dense-phase bed by fluidized wind distributor 8, makes solid particle in fluidized state, to strengthen the exothermic effects of high-temperature solid particle to heat removing tube 3; The cooled solid particle of heat release is discharged by gas vent 1, thereby completes the cooling procedure in external warmer containing solid particle gas; Then give the logical cooling water of the feed pipe 4-5 in every heat removing tube 3, cooling water flows downward in feed pipe 4-5, by the outlet of feed pipe 4-5 lower end, flowed out again, enter the annular space between feed pipe 4-5 and steam water interface sleeve pipe 4-1 and upwards flow, absorb heat release medium (gas outside pipe) liberated heat, the steam water interface of generation is flowed out by the steam water interface outlet 4-8 on steam water interface sleeve pipe 4-1 top; The solid particulate matter of separating out in water evaporation process and haline water can be deposited on steam water interface casing pipe bottom (head) 4-2 and sewage absorpting heat 4-10 region, because dirt sucking tube outlet external pressure is low, solid particulate matter and haline water are discharged by the aperture of opening on sewage absorpting heat 4-10, the solid particulate matter adsorbing on sewage absorpting heat is by controlling higher flow velocity or backwash, solid particle is carried away, thereby reach the object of preventing and treating encrustation.

In aforesaid operations process, every heat removing tube 3 forms separately one and has the independently heat transfer unit in water-vapour loop.The steam water interface that high temperature produces by heat removing tube 3 containing the energy of the gas of solid particle like this is constantly taken away.

Of the present utility model from the efficient external warmer of blowdown, be mainly used in the heavy oil catalytically cracking equipment of PETROLEUM PROCESSING industry, and with its technical process similarly other catalytic cracking unit, for example MTO(preparing olefin by conversion of methanol) device, HCC(heavy oil By Direct Pyrolysis alkene processed) install; Can also be applied to have other heat transmission place of requirement of similarity.

Claims

1. from the efficient heat removing tube of blowdown, described heat removing tube, for by steam water interface sleeve pipe (4-1) be positioned at the enclosed construction of feed pipe (4-5) formation of steam water interface sleeve pipe, forms a heat transfer unit with independent water-vapour loop; The outer surface of described steam water interface sleeve pipe (4-1) is equipped with fin (4-3); Described fin (4-3) is perpendicular to the outer surface setting of steam water interface sleeve pipe, and described fin (4-3) is the multiple row longitudinally arranging; The welded top of described steam water interface sleeve pipe has steam water interface sleeve pipe capping (4-6), and bottom welding has pipe bottom (head) (4-2); On described steam water interface sleeve pipe, there is steam water interface outlet (4-8); Distance between described feed pipe lower end and steam water interface steam water interface casing pipe bottom (head) (4-2) is 1.0 ~ 1.5 times of feed pipe (4-4) caliber; The water inlet of described feed pipe (4-5) upper end is through steam water interface sleeve pipe capping (4-6); It is characterized in that: in the toroidal cavity between described feed pipe (4-5) and steam water interface sleeve pipe (4-1), blow-off pipe (4-7) is set, and described blow-off pipe (4-7) is fixed on described feed pipe (4-5); The lower end of described blow-off pipe (4-7) arranges sewage absorpting heat (4-10), and described sewage absorpting heat (4-10) is positioned between the outlet of feed pipe lower end and pipe bottom (head) (4-2); On described sewage absorpting heat (4-10), there are a plurality of apertures; The vertical sectional shape of described fin (4-3) is rectangle, and all has several rectangle short slots on the left and right end face of fin (4-3), and the rectangle short slot interlaced arrangement on the end face of left and right.

2. from the efficient external warmer of blowdown, include housing (2) and heat removing tube claimed in claim 1 (3); Described housing (2) is for vertically arranging cylinder-like structure; The top of described housing (2) is provided with end socket (5); On described housing (2), there is gas feed (4) and gas vent (1); In described housing (2), be provided with at least one heat removing tube (3), the upper end of described heat removing tube (3) is fixed on the end socket (5) of case top, and lower end is connected with the guiding trestle (7) in housing; The unsettled setting of described guiding trestle (7); The below of described guiding trestle (7) is provided with fluidized wind distributor (8), and described fluidized wind distributor (8) is positioned at housing (2); In described heat removing tube, the outlet of the steam water interface of steam water interface sleeve pipe (4-1), the water inlet of feed pipe (4-5) 4-5 upper end are, the upper end of blow-off pipe (4-7) is positioned at the outside of described external warmer.