CN201045143Y

CN201045143Y - C-type fast cooling air box

Info

Publication number: CN201045143Y
Application number: CNU2007200118507U
Authority: CN
Inventors: 姜博
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-26
Filing date: 2007-04-26
Publication date: 2008-04-09
Anticipated expiration: 2017-04-26

Abstract

Provided is a C shaped fast cooling air box, mainly relating to the technical field of a rapid cooling air box in continuous annealing furnace assembly lines of iron and steel industry. The main distinctive feature of the utility model is that the utility model is composed of a big air box, a small air box, deflectors, C shaped tuyere notches and the like. The utility model is characterized in that air outlets of the small air box and the big air box employ C shaped tuyere notches, reducing the motion resistance of the fluid inside the air boxes, and the deflectors are arranged inside an air inlet of the big air box in different directions, resolving the problem that the flow quantity and the pressure of cooling air fluid which is supplied by a fan are non-uniform in distribution when in working status inside the air box, guaranteeing the flow quantity and the pressure of the cooling air fluid spraying from each C shaped tuyere notch to the surface of a steel plate, reducing large resistance loss of the flow quantity and the pressure of the cooling air fluid, and ensuring the industrial design function.

Description

The quick cool wind box of C type

Technical field

The utility model relates generally in the continuous annealing furnace production line of Iron And Steel Industry cool wind box equipment technical field fast, relates in particular to the quick cool wind box of a kind of C type.Be generally used for the steel plate continuous annealing production line, steel plate galvanized production line, the quick cool wind box equipment of the cooling section on color coated steel sheet production line or the white steel plate production line.

Background technology

At present, have 2130 steel plate continuous annealing production line technical equipment of world-class advanced level, wherein the production technique of most critical is the annealing furnace production line; The annealing furnace production line mainly by preheating section, heating zone, slow cooling section, fast cold section, cross the actual effect section and steel construction, mechanical means and the electric installation of cold section or the like each process section totally constitute eventually.

The production process equipment of the most critical in the annealing furnace production line is fast cold section bellows and mechanical transmission thereof.This equipment quality and better function and bad will directly influence quality, kind and the output that enterprise produces high value added product.Quick cool wind box equipment is wherein handled checking through 06 year eight months debugging, and its technology is fully matured not, inreal its design function of realizing.

Design function: the one, fast packaged air conditioner is work under (640～350) ℃ state in body of heater; The 2nd, steel band from top to bottom in stove in the three pairs of fast packaged air conditioners by the time, lowered the temperature rapidly about 270 ℃ by manufacturing technique requirent; The 3rd, for guaranteeing cold blast rate and the pressure-stabilisation of fast packaged air conditioner to steel band, little bellows will done to move 50mm relative to horizontal direction in big bellows, use when producing extraordinary high value added product.Under the working condition, though recirculation blower has improved the flow and the pressure of 20% cooling air fluid power, do not reach design function, exist in the bellows to the serious drag losses at tuyere place, this has problems at design aspect.

Summary of the invention

The purpose of the quick cool wind box of the utility model C type is at having the serious drag losses problem that arrives the tuyere place in the bellows, the new bellows of developing in the existing quick cool wind box.Guaranteed that blower fan descends the flow and the pressure of cooling air fluid power in working order to bellows.

The quick cool wind box of the utility model C type is achieved like this.According to principle of hydrodynamics, carried out appropriate design.One of its feature is to be provided with in the described big bellows blast inlet flow deflector of different directions, has solved cooling air fluid power position, upper, middle and lower in bellows of being supplied with by recirculation blower, the uneven problem of flow under the working order and pressure distribution.Guaranteed that cooling air fluid power sprays to the flow and the pressure of surface of steel plate from each C type tuyere, has reduced the flow of cooling air fluid power and a large amount of drag losseses that pressure produces when shunting.Two of its feature, be that described little bellows have adopted different C type tuyeres with the air outlet of big bellows, reduced the bellows internal flow resistance of motion, improved flow and pressure that wind mouth mouth sprays to surface of steel plate, more effectively reached the technological design purpose, good effect has been arranged.

The utility model compared with prior art has the following advantages and effect:

1, in big bellows air intake vent, flow deflector is set, has realized waiting and held equal pressure principle, reduced the flow and the pressure-losses that produce when wind is shunted in bellows.

2, designed at the air outlet of bellows the C of radian type tuyere has been arranged, realized hydrokinetics loss minimum principle, guaranteed that wind mouth mouth sprays to the flow and the pressure of surface of steel plate.

3, because, above-mentioned 2 design, test-results has played the energy-saving effect of (10～12) %.

Description of drawings:

Fig. 1 is work side master's TV structure synoptic diagram that a quick cool wind box of C type vertically stands up

Fig. 2 is work side master's TV structure synoptic diagram that existing quick cool wind box vertically stands up

Fig. 3 is quick cool wind box production technique floor plan synoptic diagram

Embodiment:

Make a step brief description below in conjunction with 2 pairs of existing quick cool wind box equipment and technology problems of accompanying drawing.

Referring to accompanying drawing 2, work side master's TV structure synoptic diagram that existing quick cool wind box vertically stands up.The parallel mobile little bellows 2 of energy are installed in big bellows 1, and there is gap 4 in little bellows with big bellows, and the outlet side of big bellows and little bellows not employing has arcual C shape tuyere, and adopts straight shape tuyere 5, and the fluid in the bellows is flowed to the tuyere place produces resistance.In the blast inlet 3 of big bellows, the flow deflector of upper, middle and lower shunting action is not set, produce the loss of serious pressure and flow resistance.

Referring to accompanying drawing 3, quick cool wind box production technique floor plan synoptic diagram.In production line, bellows production technique floor plan is divided into three layers of upper, middle and lowers, and steel plate moves from top to bottom.MS represents back side among the figure, and OS represents fore side; In the furnace shell 1 of accompanying drawing 3, arrange a pair of quick cool wind box 2 of installation along the rolling line direction, cooling air quantity is sent bellows inlet duct 3 to by recirculation blower outlet conduit 4, enter quick cool wind box 2, and spray to the steel plate 5 of operation symmetrically by the wind mouth mouth of paired bellows 2, realize the cooling purpose of short annealing.

Below in conjunction with accompanying drawing 1, one of quick cool wind box embodiment of the utility model C type is specified.

The work side master's TV structure synoptic diagram that vertically stands up referring to 1, one quick cool wind box of C type of accompanying drawing.One of its feature, the inboard that is the blast inlet 3 of described big bellows 1 is provided with reclinate flow deflector 4 and the flow deflector 5 that is bent upwards, blast inlet 3 edges highly are divided into three parts, the fluid that makes blast inlet is along level and smooth the flowing downwards with in the casing of top of flow deflector, and enter in the casing by middle portion, guaranteed that cooling air fluid power that blower fan supplies with big bellows is in casing, to the distribution harmony of each C shape tuyere 6 of air outlet and 7.The quantity that is the inboard flow deflector of described blast inlet 3 can be one, two or several, by design code.Described flow deflector is a whole plate, and two ends are welded on the housing of bellows both sides; It is the C shape tuyere design of r that two of its feature, the C shape tuyere 6 that is described big bellows have adopted radian.Be that it is the C shape tuyere design of R that the described C shape tuyere 7 that is assemblied in the movable little bellows 2 in the big bellows 1 has adopted radian.Be that the described movable little bellows 2 that are assemblied in the big bellows 1 are usually designed to two or three, by design decision.Under special conditions, be that described big bellows can work independently, and do not assemble little bellows in it.Owing to adopted C shape tuyere and bellows to be assembled into one, under the bellows working conditions, it is the jet hole 8 that the internal surface of R or r slips into C shape tuyere that the fluid in the bellows can the edge has radian.Guaranteed that further the cooling air fluid is to the flow and the pressure of steel plate 5 in the bellows work.

Claims

1. quick cool wind box of C type, be primarily characterized in that the described big bellows (1) and the outlet of little bellows (2) adopted different C type tuyere (6) and (7), be to be equipped with in the inlet (3) of described big bellows (1) flow deflector (4) and (5) of different directions.

2. the quick cool wind box of C type according to claim 1 is characterized in that the quantity of the interior little bellows (2) that assembled of described big bellows (1) is two or three.

3. the quick cool wind box of C type according to claim 1 is characterized in that described flow deflector (4) and (5), and its quantity is two or several.