CN200958764Y

CN200958764Y - Ash blower of boiler

Info

Publication number: CN200958764Y
Application number: CN 200620092654
Authority: CN
Inventors: 陶荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-04
Filing date: 2006-08-04
Publication date: 2007-10-10
Anticipated expiration: 2016-08-04

Abstract

The utility model relates to a boiler sootblower used for ash blowing of heated surface of boiler, which belongs to supplemental facility of boiler and comprises an air inlet, a pressure control valve, a sealing rod, a principal cylinder cavity, a big cylinder sleeve, a steam discharging valve, a medium cylinder sleeve, a piston set, a small cylinder sleeve, a releasing cavity port, a return spring, a cavity air outlet and a tank. One end of the tank is provided with the air inlet, and the other end is provided with the releasing cavity port. The pressure control valve and the principal cylinder cavity are arranged inside the tank. The big cylinder sleeve, the return spring and the sealing rod are arranged inside the principal cylinder cavity. One end of the principal cylinder cavity is provided with the piston set, and the other end is provided with a cover opening. The sealing rod cooperates with the cover opening. The utility model solves coking and dust stratification of boiler, cleans dust of every heated surface, improves heat transmission of the boiler, improves operational efficiency of the boiler and achieves energy saving, consumption reduction and safe production.

Description

Boiler sootblower

Technical field

The utility model relates to boiler auxiliaries, is specially a kind of boiler sootblower that boiler heating surface blows ash that is used for.

Background technology

The safety and economic operation of boiler is vast boiler user's a target, and especially Industrial Boilers such as fire coal and fuel oil are in the process of burning, and water-cooling wall and superheater etc. is located to produce serious dust stratification.And the result of dust stratification will cause the thermal efficiency of boiler to reduce, stop up exhaust gases passes, and cause that superheat steam temperature raises, thereby the safe operation of harm steam turbine, even may cause the water-cooling wall inhomogeneous disastrous effect that causes squib of being heated, and dust stratification is a kind of vicious circle phenomenon from aggravation in boiler combustion process.Obviously, if fouling phenomenon is not effectively handled, with the safety and economy operation of serious harm boiler.In order to remove the dust stratification of each heating surface, improve the heat transfer of boiler, improve boiler operating efficiency, select really can solve boiler coke, dust stratification, save energy and reduce the cost, keep the safety in production realizing, and the practical boiler sootblower of increasing economic efficiency, just our common focus.

The utility model content

The purpose of this utility model is to provide a kind of boiler sootblower, solves problems such as boiler coke, dust stratification, removes the dust stratification of each heating surface, improves the heat transfer of boiler, improves boiler operating efficiency, realizes energy-saving and cost-reducing, safety in production.

The technical solution of the utility model is:

A kind of boiler sootblower, comprise air inlet, pressure-control valve, seal bar, the master cylinder cavity, big cylinder sleeve, exhaust steam valve, middle cylinder sleeve, the piston group, little cylinder sleeve, discharge accent, back-moving spring, the cavity steam vent, tank body, tank body one end is provided with air inlet, its other end is provided with the release accent, pressure-control valve, the main air valve cavity places in the tank body, establish big cylinder sleeve in the main air valve cavity, back-moving spring, seal bar, main air valve cavity one end is installed the piston group, its other end end cap opening, cooperate the formation sealing with this opening by seal bar, the piston group is the front end piston that sectional area diminishes gradually, the middle-end piston, the integrative-structure of the coaxial formation of terminal piston, the front end piston, the middle-end piston, terminal piston respectively with the big cylinder sleeve in the outside, middle cylinder sleeve, little cylinder sleeve is and is slidingly matched, front end piston outer end is provided with back-moving spring, and seal bar is installed, terminal piston outer end is connected to the release accent by pipeline, have the cavity steam vent that communicates with pressure-control valve on the end cap, the valve venthole of pressure-control valve communicates with atmosphere by pipeline.

Described boiler sootblower, the master cylinder cavity is connected with exhaust steam valve.

Described boiler sootblower, middle cylinder sleeve sidewall have middle cylinder sleeve opening.

Described boiler sootblower, the valve venthole of pressure-control valve communicates with atmosphere through muffler by pipeline.

Described boiler sootblower, boiler sootblower is told the release accent that at least one is used to blow ash by pipeline.

The beneficial effects of the utility model are:

1, the utility model be a kind of strong hop towards ripple battle array soot blower, in principle and structural innovation, make it and now all traditional products are all inequality, have the characteristics of operation simple and easy (air pressure), highly effective and safe.

2, the utility model is simple pneumatic antomation device, superposition by natural air surge and the vibrations of high-decibel sound wave, the SHOCK ENERGY mode that the powerful hop of abrupt release high speed changes in boiler, effectively water-cooling wall and superheater etc. are located to carry out the vibratory impulse purging and be means, realization is removed the purpose of dust stratification slagging scorification to comprehensive whole spaces such as boiler flues, save the labour to greatest extent, guaranteed the safe and reliable operation of steam generator system.Ash is blown in organic stack of two kinds of energy of the utility model, is better than the soot blower of sound wave or theory of mechanics.

3, the utility model can be applicable to various types of fire coals, oil burning boiler and technology heating boiler, is a kind of boiler soot-blowing device of practical high efficient and reliable safety.

4, the utility model does not have automatically controlled device, pure pneumatic principle, pure natural air medium, hidden danger such as the leakage of no gas type class, blast.

5, the direct site of deployment source of the gas of the utility model under the continuous operation, per day only 3 cubic metres, does not need electric energy substantially, thereby reaches purpose of energy saving.

6, the utility model is only received tracheae each and is positioned at soot blower import on the boiler, and long-range fixed point realizes automatic ash removing.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is embodiment schematic diagram of the utility model.

Among the figure, 1 air inlet; 2 pressure-control valves; 21 regulate bolt; 22 pressure breathing holes; 23 control valve pistons; 24 valve air admission holes; 25 valve ventholes; 3 seal bar; 4 master cylinder cavitys; 5 big cylinder sleeves; 6 exhaust steam valves; Cylinder sleeve in 7; 8 piston groups; 81 front end pistons; 82 middle-end pistons; 83 rear end pistons; 9 little cylinder sleeves; 10 mufflers; 11 discharge accent; Cylinder sleeve opening in 12; 13 back-moving springs; 14 end caps; 15 cavity steam vents; 16 tank bodies; 17 boiler sootblowers; 18 controllers; 19 cylinders; 20 pistons.

The specific embodiment

As shown in Figure 1, the utility model comprises air inlet 1, pressure-control valve 2, seal bar 3, master cylinder cavity 4, big cylinder sleeve 5, exhaust steam valve 6, middle cylinder sleeve 7, piston group 8, little cylinder sleeve 9, discharge accent 11, back-moving spring 13, cavity steam vent 15, tank body 16 etc., tank body 16 1 ends are provided with air inlet 1, its other end is provided with and discharges accent 11, pressure-control valve 2, main air valve cavity 4 places in the tank body 16, establish big cylinder sleeve 5 in the main air valve cavity 4, back-moving spring 13, seal bar 3, main air valve cavity 4 one ends are installed piston group 8, its other end end cap 14 openings, cooperate the formation sealing with this opening by seal bar 3, the front end piston 81 that piston group 8 diminishes gradually for sectional area, middle-end piston 82, the integrative-structure of terminal piston 83 coaxial formations, front end piston 81, middle-end piston 82, terminal piston 83 respectively with the big cylinder sleeve 5 in the outside, middle cylinder sleeve 7, little cylinder sleeve 9 is and is slidingly matched, front end piston 81 outer ends are provided with back-moving spring 13, and seal bar 3 is installed, terminal piston 83 outer ends are for discharging accent 11, have the cavity steam vent 15 that communicates with pressure-control valve 2 on the end cap 14, pressure-control valve 2 comprises regulates bolt 21, pressure breathing hole 22, control valve piston 23, valve air admission hole 24, valve venthole 25, the valve venthole 25 of pressure-control valve 2 passes through pipeline, muffler 10 is discharged, exhaust steam valve 6 one ends communicate with master cylinder cavity 4, its other end communicates with the pipeline at valve venthole 25 places, and effect is to form compression vacuum when avoiding back-moving spring 13 to reset between front end piston 81 and master cylinder cavity 4 and cause and can't reset.Seal bar 3 is installed on front end piston 81 outer ends, and with 8 motions of piston group, seal bar 3 can be sealed master cylinder cavity 4 one ends, terminal piston 83 cooperates with little cylinder sleeve 9, middle-end piston 82 cooperates with middle cylinder sleeve 7, and front end piston 81 cooperates with big cylinder sleeve 5, and master cylinder cavity 4 other ends are sealed.

The course of work of the present utility model is as follows:

Compressed Gas enters tank body 16 by air inlet 1, tank body 16 internal gas pressures increase, Compressed Gas is by pressure breathing hole 22, enter pressure-control valve 2, pressure-control valve 2 inner control valve pistons 23 produce pressure differential, make control valve piston 23 to regulating the motion of bolt 21 directions, regulate bolt 21 and pressure can be adjusted to 0.4-0.6MPa, when gas pressure is greater than 0.5-0.6MPa in the tank body 16, make valve air admission hole 24 and valve venthole 25 UNICOMs, this moment, master cylinder cavity 4 internal gas pressures leaked through cavity steam vent 15, by middle cylinder sleeve opening 12, tank body 16 internal gas pressures are to the middle-end piston 82 and terminal piston 83 middle part generation effects of piston group 8, piston group 8 is travelled forward, cylinder piston group 8 travels forward, during middle-end piston 82 breaks away from during cylinder sleeve 7, a large amount of Compressed Gas directly affact the front end piston 81 of piston group 8, front end piston 81 travels forward along big cylinder sleeve 5, seal bar 3 stretches out in end cap 14 outsides, front end piston 81 sectional areas travel forward piston group 8 rapidly greater than middle-end piston 82, this moment, terminal piston 83 hightailed with little cylinder sleeve 9, and Compressed Gas moment discharges from discharging accent 11 in the tank body 16, produces gas shock wave and sound wave effect and blows ash.Tank body 16 internal gas pressures reduce, and back-moving spring 13 acts on piston group 8 and makes piston reset, and tank body 16 internal gas pressures raise again, carry out the work second time.

The utility model main technical parameters:

Working media: natural air;

Sound pressure level 〉=150dB;

Acoustic wave character: strong transition shock wave battle array;

Sphere of action (effective coverage): 5-9M;

Adaptive temperature: all heating surfaces;

Control mode: single pneumatic (automatically continuously, manually);

Bleed pressure: 1.2-4.0MPa;

Day air consumption≤3m ³

As shown in Figure 2, boiler sootblower 17 is told at least one by pipeline and is discharged accent 11, is nine shunt among the figure, can blow ash to 9 points of boiler, quantity along separate routes can be adjusted as required, and each drives piston 20 controls by cylinder 19 along separate routes and opens and closes; During work, can control each by controller 18 (as single-chip microcomputer) and open and close along separate routes, further control the sequencing of its work.

Claims

1, boiler sootblower, it is characterized in that: comprise air inlet (1), pressure-control valve (2), seal bar (3), master cylinder cavity (4), big cylinder sleeve (5), exhaust steam valve (6), middle cylinder sleeve (7), piston group (8), little cylinder sleeve (9), discharge accent (11), back-moving spring (13), cavity steam vent (15), tank body (16), tank body (16) one ends are provided with air inlet (1), its other end is provided with and discharges accent (11), pressure-control valve (2), main air valve cavity (4) places in the tank body (16), establish big cylinder sleeve (5) in the main air valve cavity (4), back-moving spring (13), seal bar (3), main air valve cavity (4) one ends are installed piston group (8), its other end end cap (14) opening, cooperate the formation sealing with this opening by seal bar (3), the front end piston (81) that piston group (8) diminishes gradually for sectional area, middle-end piston (82), the integrative-structure of the coaxial formation of terminal piston (83), front end piston (81), middle-end piston (82), terminal piston (83) respectively with the big cylinder sleeve (5) in the outside, middle cylinder sleeve (7), little cylinder sleeve (9) is and is slidingly matched, front end piston (81) outer end is provided with back-moving spring (13), and seal bar (3) is installed, terminal piston (83) outer end is connected to by pipeline and discharges accent (11), have the cavity steam vent (15) that communicates with pressure-control valve (2) on the end cap (14), the valve venthole (25) of pressure-control valve (2) communicates with atmosphere by pipeline.

2, according to the described boiler sootblower of claim 1, it is characterized in that: master cylinder cavity (4) is connected with exhaust steam valve (6).

3, according to the described boiler sootblower of claim 1, it is characterized in that: middle cylinder sleeve (7) sidewall has middle cylinder sleeve opening (12).

4, according to the described boiler sootblower of claim 1, it is characterized in that: the valve venthole (25) of pressure-control valve (2) communicates with atmosphere through muffler by pipeline.

5, according to the described boiler sootblower of claim 1, it is characterized in that: boiler sootblower is told the release accent that at least one is used to blow ash by pipeline.