CN2632499Y

CN2632499Y - Steam jetter of coal gasifying boiler

Info

Publication number: CN2632499Y
Application number: CN 03251877
Authority: CN
Inventors: 尤潘垦; 常奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-07
Filing date: 2003-08-07
Publication date: 2004-08-11
Anticipated expiration: 2013-08-07

Abstract

The utility model discloses a vapor ejection device, which relates to industrial furnace field, in particular to a vapor ejection device for a coal-to-vapor furnace. The vapor ejection device is arranged on an axis of an air supplying chamber parallel to a grate bar, which includes an ejection pipe, a sliding pipe, a fixed pipe, a vapor inlet case, a driving device, a control valve and a regulation valve; wherein, the ejection pipe, the sliding pipe, the fixed pipe and the vapor inlet case are connected in sequence; the driving device drives the sliding pipe to make the ejection pipe move on and forth within a wind chamber; the sliding pipe is assembled with a plurality of parts of hollow pipes with identical sections in sequence; the adjoining two parts are sealed with heat resistance and sealing materials, which can slide mutually; the outer walls of the front part of the sliding pipe connects to the driving device; one part of the sliding pipe of the front part connects to the ejection pipe which is provided with a plurality of ejection nozzles that faces the grate bars.

Description

The coal-turned-gas boiler steam injection equipment

Technical field

The utility model relates to the Industrial Boiler field, specifically the coal-turned-gas boiler steam injection equipment.

Technical background

For satisfying environmental protection and requirements of saving energy, in recent years, people constantly design various coals changes the gas Industrial Boiler.In coal-turned-gas boiler, it is the necessary condition that water-gas produces that steam imports the combustion zone.The lead-in mode of steam is to install steam jet additional in the plenum chamber of the bottom of body of heater in the coal-turned-gas boiler at present, and steam participates in chemical reaction with the zone of flame that new wind together enters fire grate top, forms coal gas.The Chinese patent communique has been announced the coal Gasification Technology in Retrospect that some are new." the superpower coal gasifier of many combustions formula " technical scheme (CN02205331) is: steam pipe is that the formed pipe of a plurality of eyelets is arranged; The technical scheme of " mechanically-propelled formula gasification coal-fired boiler " (CN 01277502) is: with pipe steam is directly imported in the boiler air compartment.Above-mentioned technology does not all possess the effect that emitted dose is regulated, and does not more possess reciprocating ability.

Summary of the invention

The purpose of this utility model provides a kind of steam injection equipment with steam regulation emitted dose and eject position function, does not influence flame combustion under the grate firing state in the steam course of injection substantially, can improve efficiency of fire coal.

Concrete structure of the present utility model is as follows:

This steam injection equipment is positioned on the plenum chamber axis parallel with fire grate, is made up of playpipe, sliding tube, stationary pipes, admission case, drive unit, control valve, control valve.Playpipe, sliding tube, stationary pipes, admission case are connected successively, drive sliding tube by drive unit playpipe is moved back and forth in air compartment.Sliding tube is that the identical hollow pipe of some joint cross sectional shapes connects together successively, facing two internodes mutually adopts the high temperature sealing material sealing also can slide mutually, one joint sliding tube outer wall of leading portion links to each other with drive unit, also be communicated with playpipe on the one joint sliding tube of leading portion, have several spouts on the playpipe, spout is towards the fire grate direction.Stationary pipes is connected with the admission case, with steam import sliding tube and and then the Guide spray pipe, spray to the fire grate bottom at last.Be provided with by-pass valve control in the admission case, when needs were organized playpipe to the fire grate uperize more, by-pass valve control was used for realizing the steam supply conversion to each stationary pipes, and control valve is positioned at the place, steam inlet of admission case, can control the flow of steam.

The joint number of sliding tube needs to determine according to boiler grate length, single-unit length, generally between the 3-10 joint.

The novel beneficial effect of this use is: adopt steam injection equipment of the present utility model, playpipe moves back and forth under fire grate simultaneously to the fire grate uperize, the partial flame district has a large amount of steam to enter above playpipe motion fire grate in one's power, form the effect of forcing displacement coal gas, after this below, zone is left in the playpipe motion, make this zone recover fired state rapidly very soon by the novel wind energy that air blast sent, thereby reached the effect that burning is more abundant, boiler output is arbitrarily controlled.

Description of drawings

Fig. 1 is the structural representation of steam injection equipment, and Fig. 2 is the schematic diagrames of two cover steam injection equipments when forming one group.

Specifying Fig. 1 is the specification digest accompanying drawing

Playpipe 1, sliding tube 2, stationary pipes 3, admission case 4, control valve 5, gear 6, inlet valve 7, drive unit 8, extension bar 9, playpipe 10, tooth bar 11, travel switch 12, pull bar 13, knot 14, stay cord 15, draw ring 16, steam guiding tube 17, stationary pipes 18, rach slot 19, ball 20

The specific embodiment 1

1) injection apparatus is installed in the bottom of the fire grate of boiler;

2) under the driving of drive unit, be synchronized with the movement with sliding tube by extension bar 13, the extension bar 9 at tooth bar 11 two ends of sliding, promptly at the two ends of tooth bar 11 coupling bar 13, extension bar 9, one end of extension bar 13 is connected with playpipe 10, and an end of extension bar 13 is connected with sliding tube 2.

3) on stationary pipes 3 tops control valve 5 is installed, three groups of movably telescoping tubes are installed in stationary pipes, the sleeve pipe front end is sealed by heat proof material, three groups of sliding tubes can be nested successively, the horizontal playpipe 1 that communicates in the sliding tube top attachment of forefront, the length of playpipe 1 equates that with the width of fire grate playpipe has rectangular rectangular mouthful or the aperture that gathers successively, and its opening surface is to fire grate.

4) supported by rach slot 19 in the lower end of tooth bar 11, the bottom in the teeth groove 19 is provided with ball 20, is provided with travel switch 12 at the two ends of groove.

5) drive unit 8 is installed in any side of the outer both sides of furnace wall.Rach slot 19, tooth bar 11,

stationary pipes

3,18 and sliding tube 2 are installed in the furnace wall outside.

6) at the local by-pass valve control 5 of installing of the pipe of admission case 4 porch, regulate evaporation capacity for engine, in the admission case 4 of stationary pipes 3, be provided with inlet valve 7, when 1 work of a playpipe, inlet valve 7 is with the steam supply mouth sealing of another steam inlet pipe, vice versa, spray the axis middle part of dividing steam valve to be positioned at the admission box, the air inlet of two stationary pipes lays respectively at the front and back section of admission case, and inlet valve 7 has stay cord 15, stay cord 15 1 ends link to each other with the draw ring 16 of one group of sliding tube, the draw ring of the other end and another group sliding tube links, and the two ends of rope are provided with knot 14, and sliding tube drives knot 14, knot drives admission valve 7 and moves back and forth, the control air feed.Also can establish electrically operated valve at fixedly pipe end separately, valve is controlled by travel switch.

7) wireway 17 imports stationary pipes 18 by admission case 4.

The specific embodiment 2

1) injection apparatus 1.Be installed in the bottom of the fire grate of boiler.

2) the 3rd joint sliding tube front end installs the transverse injection pipe 1 of UNICOM with it additional, and the length of playpipe 1 equates that with the width of fire grate playpipe has rectangular rectangular mouth or leaves intensive aperture successively, and its opening surface is to fire grate, and is synchronized with the movement with sliding tube.

3) stationary pipes 3 that has UNICOM to be nested at the rear portion of the 3rd joint sliding tube.

4) be added with the flow control valve 4 and the flow control valve 5 of UNICOM on stationary pipes top.

5) pulling sliding tube 1 under the driving of drive unit 6, sliding tube 2 drives playpipe 1 and moves back and forth in the bottom of fire grate, controls 5 injection flows by control valve.

6) said structure can be repeated to make many covers and be installed under the fire grate, play effect simultaneously to the combustion zone uperize.

Claims

1, a kind of steam injection equipment is made up of playpipe (1), admission case (4), control valve (5), it is characterized in that sliding tube (1), stationary pipes (3), drive unit (8) and intake valve (7) in addition; This steam injection equipment is positioned on the plenum chamber axis parallel with fire grate, and playpipe (1), sliding tube (2), stationary pipes (3), admission case (4) are connected successively, drives sliding tube (2) by drive unit (8) playpipe (1) is moved back and forth in air compartment; Sliding tube (2) connects together successively for the identical hollow pipe of some joint cross sectional shapes, facing two internodes mutually adopts the high temperature sealing material sealing also can slide mutually, one joint sliding tube outer wall of leading portion links to each other with drive unit (8), also be communicated with playpipe (10) on the one joint sliding tube of leading portion, playpipe has spout on (10), and spout is towards the fire grate direction; Stationary pipes (3) is connected with admission case (4), is provided with the intake valve (7) to the steam supply conversion of each stationary pipes in admission case (4), and the control valve (5) that can control steam flow is positioned at the place, steam inlet of admission case (4).

2, a kind of steam injection equipment according to claim 1 is characterized in that described steam injection equipment constitutes one group by two covers.

3, a kind of steam injection equipment according to claim 1 and 2 is characterized in that described steam injection equipment constitutes one group by many covers.