CN207702498U - Retractable soot blower - Google Patents

Abstract

The utility model discloses a kind of retractable soot blowers, its key points of the technical solution are that including crossbeam, it is fixedly connected on the valve of crossbeam tail portion, the valve-opening mechanism for being set to the soot blowing component of crossbeam lower end and being turned on and off with control valve on crossbeam and with the linkage of soot blowing component, the boiler bindiny mechanism for being docked with boiler is provided on crossbeam, it is provided with air jet pipe between soot blowing component and valve, the support component for being used to support air jet pipe is provided on crossbeam, support component includes being abutted with air jet pipe and the ball to play a supportive role to air jet pipe and the fixing piece being connected to ball on crossbeam.The utility model solves the problems, such as that air jet pipe service life is short.

Description

Retractable soot blower

Technical field

The utility model is related to a kind of coal fired power plant waste heat boiler cleaning equipments, more specifically, it is related to a kind of stretch Formula soot blower.

Background technology

On the coal and oils boilers such as Industrial Boiler, station boiler, biomass boiler, refuse furnace, technique stove and heating furnace Vital qi soot blower is generally used, soot blower for boiler hearth, long retractable soot blower, half telescopic soot blowing are being configured with boiler plant The soot blowers such as device, fixed spindle-type sootblower, wherein long retractable soot blower is mainly used for cleaning boiler screen formula and tube bank is heated Face.

Currently, to disclose a kind of explosion-proof type length flexible for the Chinese patent application file that application publication number is CN105570912A Formula soot blower, including the front end of crossbeam, crossbeam are mutually fixed with wall case, and fixation is hung in end by rear portion branch thereafter, crossbeam upper edge its Length direction movement is provided with traveling box, and the rear end rotation of crossbeam is provided with horizontal axis, and horizontal axis is driven by power plant and rotated, and is moved Power apparatus is fixedly installed on the rear end of crossbeam, and the hoofing part that driving traveling box carries out linear reciprocating motion is connected on horizontal axis Mechanism, the interior rotation of traveling box are provided with hollow live spindle, and the front end of live spindle is fixedly connected with hollow ash gun The front end of pipe, soot blowing gun barrel is closed and is provided with nozzle, and the rotation driving of driving live spindle rotation is provided in traveling box The both sides of mechanism, crossbeam offer guiding U-lag, and the both sides rotation at the top of the traveling box is provided with and the guiding U-lag Matched walking directive wheel.But move the when of rotating in gun barrel group between walking directive wheel and gun barrel group and easily rub, easily Gun barrel group is damaged, so as to shorten the service life of gun barrel group.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of retractable soot blower, lead to It crosses and is provided with the support component for being used to support air jet pipe on crossbeam, support component is contacted with air jet pipe by ball, in this way may be used So that original sliding friction becomes rolling friction, it is possible to reduce to the frictional force of air jet pipe, to extend making for air jet pipe Use the service life.

To achieve the above object, the utility model provides following technical solution：

A kind of retractable soot blower, including crossbeam, be fixedly connected on crossbeam tail portion valve, be set to blowing for crossbeam lower end It grey component and links the valve-opening mechanism that is turned on and off with control valve on crossbeam and with soot blowing component, is set on crossbeam It is equipped with the boiler bindiny mechanism for being docked with boiler, air jet pipe is provided between soot blowing component and valve, is provided on crossbeam Be used to support the support component of air jet pipe, support component include abutted with air jet pipe and the ball that plays a supportive role to air jet pipe with And ball is connected to the fixing piece on crossbeam.

By using above-mentioned technical proposal, first the boiler bindiny mechanism on crossbeam is docked with boiler, after valve opening, Soot blowing component drives air jet pipe to be moved forward and backward and rotate under crossbeam, so that air jet pipe is rolled with the ball in support component and connects, Frictional force of the ball to air jet pipe can be reduced in this way, to extend the service life of air jet pipe.

The utility model is further arranged to：Fixing piece is the U-shaped board being fixedly connected on crossbeam and is fixed on U-shaped board Fixed block upper and for fixing ball but not influencing ball rotation.

By using above-mentioned technical proposal, ball is rotationally connected on fixed block, and fixed block is fixedly connected in U-shaped board, U Template is fixedly connected on crossbeam, and ball is fixed on crossbeam indirectly in this way, is made ball that can not only reduce and is rubbed to air jet pipe It wipes, moreover it is possible to play a supporting role to air jet pipe.

The utility model is further arranged to：Ball is removably connected in fixed block.

By using above-mentioned technical proposal, after a period of use, the surface of ball may be worn ball, to increase Friction to air jet pipe, ball is detachable in fixed block, is replaced to ball to convenient.

The utility model is further arranged to：Through-hole is offered in fixed block, through-hole internal thread is connected with fixing bolt, Gu Determine to be fixedly connected with fixed spring on bolt, the end of fixed spring is abutted with ball.

By using above-mentioned technical proposal, when needing to replace ball, fixing bolt is turned, fixing bolt is made to drive Fixed spring is detached from fixed block, so as to detach ball with the end of fixed spring, changes new ball, then pass through fixed spiral shell Ball is rotationally connected in fixed block by bolt with fixed spring.

The utility model is further arranged to：Boiler bindiny mechanism includes the hinge bar being articulated on crossbeam, rotation connection In on hinge bar linking arm and be fixedly connected on linking arm for air jet pipe by connector.

By using above-mentioned technical proposal, connector can be made directly to be docked with boiler, make air jet pipe according to the height of boiler It is deep into boiler directly through connector, linking arm can also rotated around hinge bar, band follower link overturning hangs on pot On stove.

The utility model is further arranged to：Valve includes valve body, is provided on valve body and unilaterally connected list in valve body To valve.

By using above-mentioned technical proposal, remain after air jet pipe is to soot blowing in boiler, in air jet pipe largely from Extraneous air can be brought into air jet pipe by check valve, cooled down to air jet pipe by the hot gas taken out of in boiler, to The service life of air jet pipe can be extended.

The utility model is further arranged to：Soot blowing component includes the mobile mechanism for driving air jet pipe to be moved forward and backward and drive The rotating mechanism of dynamic air jet pipe rotation.

By using above-mentioned technical proposal, mobile mechanism drives soot blowing component that gas blow pipe is driven to be moved forward and backward, rotating mechanism Soot blowing component is driven to drive air jet pipe rotation, i.e. air jet pipe that can also be rotated when being moved forward and backward, it is in spiral shell to make the gas that air jet pipe sprays Shape is revolved, it is more thorough to what is cleaned in boiler.

The utility model is further arranged to：Mobile mechanism include driving motor, with driving motor connecting worm and with The worm gear of worm screw engagement, is coaxially connected with gear on worm gear, and the rack for being fixed on crossbeam bottom end, gear rotation are engaged on gear It is connected with movable stand, mounting bracket is installed on movable stand, the main rotary shaft for being useful for connection air jet pipe is rotatablely connected on mounting bracket.

By using above-mentioned technical proposal, driving motor drives worm screw rotation, to drive worm gear to rotate, and then drive with The coaxial fixed gear rotation of worm gear, gear move on rack, you can drive movable stand to be moved forward and backward, so as to make movable stand On mounting bracket also air jet pipe is driven to be moved forward and backward.

The utility model is further arranged to：Rotating mechanism includes the first gear coaxially connected with worm gear and with first The second gear of gear engagement, is coaxially connected with the first sprocket wheel in second gear, chain, main rotary shaft is engaged on the first sprocket wheel On be additionally provided with the second sprocket wheel engaged with chain.

By using above-mentioned technical proposal, worm screw drives first gear rotation, and then drives second gear rotation, the second tooth Wheel drives coaxially connected the first sprocket wheel rotation, the first sprocket wheel to be rotated by chain-driving second gear, and second gear can drive Main rotary shaft rotates, and then drives the air jet pipe rotation being fixedly arranged on main rotary shaft.

In conclusion the utility model has the advantages that compared with the prior art：1. extending making for air jet pipe Use the service life；2. reducing the friction between air jet pipe and support component.

Description of the drawings

Fig. 1 is the overall structure diagram of retractable soot blower；

Fig. 2 is the structural schematic diagram of retractable soot blower；

Fig. 3 is the explosive view of support component；

Fig. 4 is the sectional view that fixed block is connect with ball；

Fig. 5 is the structural representation of soot blowing component；

Fig. 6 is the portions the A enlarged diagram of Fig. 5；

Fig. 7 is the structural schematic diagram of valve；

Fig. 8 is the sectional view made to highlight check valve；

Fig. 9 is the sectional view made to highlight sealing structure；

Figure 10 is the portions the B enlarged drawing of Fig. 9；

Figure 11 is the structural schematic diagram of valve-opening mechanism.

Reference numeral：1, crossbeam；11, boiler bindiny mechanism；111, hinge bar；112, linking arm；113, connector； 1131, cylinder；12, support component；121, U-shaped board；1211, cushion block；1212, support column；122, fixed block；1221, through-hole； 1222, fixing bolt；1223, fixed spring；123, ball；2, soot blowing component；21, driving motor；22, worm screw；221, worm gear； 23, gear；231, rack；24, movable stand；25, mounting bracket；251, main rotary shaft；2511, connecting flange；252, air jet pipe； 2521, inner tube；2522, outer tube；2523, puff prot；26, first gear；261, second gear；27, the first sprocket wheel；271, chain Item；272, the second sprocket wheel；3, valve；31, valve body；311, mounting flange；32, sealing mechanism；321, sealed valve stem；3211, it limits Position nut；322, Double-clack；3221, upper flap；32211, gap slot；3222, venthole；3223, lower Disc；323, sealing group Part；3231, stop sleeve；3232, card cylinder；3233, spring is sealed；3234, sealing ring is sealed；3235, rubber block；3236, it squeezes Briquetting；3237, spring cover plate；3238, catch；33, check valve；331, check valve valve body；332, check valve valve rod；333, taper Spring；334, one-way valve flap；4, valve-opening mechanism；41, push rod；411, bolt；42, fork is hit；421, connecting rod；422, limited block； 43, compression bar；431, raised.

Specific implementation mode

The utility model is described in further detail below in conjunction with the accompanying drawings.

A kind of retractable soot blower, referring to Fig. 1 and Fig. 2, including crossbeam 1, be fixedly connected on 1 tail portion of crossbeam valve 3, set It is placed in the soot blowing component 2 of 1 lower end of crossbeam and links with the unlatching of control valve 3 or close on crossbeam 1 and with soot blowing component 2 The valve-opening mechanism 4 closed.

1 downside of crossbeam is equipped with air jet pipe 252, and air jet pipe 252 includes the inner tube 2521 being connect with valve 3 and is sheathed on interior The front end of outer tube 2522 outside pipe 2521, outer tube 2522 is closed and is provided with puff prot 2523.

Fig. 1 is reviewed, the side on 1 head of crossbeam is provided with the boiler bindiny mechanism 11 for being docked with boiler, boiler connection Mechanism 11 includes the hinge bar 111 being articulated on crossbeam 1, the linking arm 112 being rotationally connected on hinge bar 111 and fixed company The connector 113 being connected on linking arm 112, be provided in connector 113 for air jet pipe 252 by cylinder 1131.

Referring to Fig. 3 and Fig. 4,1 head of the crossbeam other side opposite with boiler bindiny mechanism 11 is provided with support component 12, branch Support component 12 includes the U-shaped board 121 being fixed on crossbeam 1, the fixed block 122 being set in U-shaped board 121 and protrusion fixed block The ball 123 that 122 pairs of air jet pipes 252 play a supportive role.It is fixedly connected with cushion block 1211 in U-shaped board 121, is welded on cushion block 1211 There are support column 1212, fixed block 122 to be fixedly connected on support column 1212, through-hole 1221 is offered in fixed block 122, stretches out solid Determine to be equipped with internal thread in the through-hole 1221 in 122 outside of block, fixing bolt 1222, fixing bolt 1222 are threaded on internal thread End be fixedly connected with fixed spring 1223, fixed spring 1223 be located in the through-hole 1221 of fixed block 122 and with ball 123 It abuts, ball 123 is set to the end of through-hole 1221 and is abutted with air jet pipe 252.

Referring to Fig. 5 and Fig. 6, soot blowing component 2 includes sliding the movable stand 24 being connected on crossbeam, being fixedly arranged on movable stand 24 Driving motor 21, the worm screw 22 that is connected with driving motor 21 and be meshed and be rotationally connected on movable stand 24 with worm screw 22 Worm gear 221, be coaxially installed with gear 23 on worm gear 221, rack 231 be engaged on gear 23, rack 231 is fixedly connected on cross The bottom end of beam 1.

It is fixedly connected under movable stand 24 there are one mounting bracket 25, main rotary shaft 251, inner tube is rotatably connected on mounting bracket 25 2521 pass through main rotary shaft 251, are provided with connecting flange 2511 on main rotary shaft 251, outer tube 2522 passes through connecting flange 2511 It is fixed on main rotary shaft 251.The other end of worm screw 22 is coaxially installed with first gear 26, and rotation is engaged in first gear 26 The second gear 261 being connected on mounting bracket 25, is coaxially installed with the first sprocket wheel 27 in second gear 261, on the first sprocket wheel 27 It is engaged with chain 271, the other end of chain 271 is equipped with the second sprocket wheel 272, and the second sprocket wheel 272 is fixedly connected on main rotary shaft 251 On.Driving motor 21 drives the outer tube 2522 of 25 lower section of mounting bracket to move by driving movable stand 24 to move, driving motor 21 by driving chain 271 to rotate, and then the main rotary shaft 251 on mounting bracket 25 is driven to rotate, and then drives main rotary shaft 251 On outer tube 2522 rotate, even if outer tube 2522 while movement while rotate.

Referring to Fig. 7 and Fig. 8, valve 3 includes valve body 31, the sealing mechanism 32 being set in valve body 31 and is set to valve body 31 The side of the check valve 33 of side, valve body 31 is provided with mounting flange 311, and valve body 31 passes through mounting flange 311 and inner tube 2521 Connection.Check valve 33 includes check valve valve body 331, check valve valve rod 332 and the Conical Projectile being sheathed on check valve valve rod 332 Spring 333 offers through-hole 1221 on check valve valve body 331, and the tail portion of check valve valve rod 332 is provided with one-way valve flap 334.Valve In 3 courses of work of door, the volute spring 333 in check valve 33 is in compression（Or it is normal）State is fixedly arranged on 333 end of volute spring The one-way valve flap 334 in portion is abutted with air intake, and when inwardly pouring air by outside, extraneous air pressure is more than in check valve 33 The air pressure in portion, 333 diastole of volute spring, makes one-way valve flap 334 be moved into valve body 31, so as to open air intake.

Referring to Fig. 9 and Figure 10, sealing mechanism 32 includes sealed valve stem 321, is set to the Double-clack of 321 tail portion of sealed valve stem 322 and the closing component 323 positioned at the top of valve 3, Double-clack 322 include upper flap 3221 and lower Disc 3223, sealing valve Bar 321 is threaded with stop nut 3211 close to the position of upper flap 3221, lower Disc 3223 and 321 one of sealed valve stem at Type and upper flap 3221 are set between stop nut 3211 and lower Disc 3223, lower Disc 3223 and upper flap 3221 or limit There are certain gap between nut 3211, gap slot 32211 and venthole 3222, gap slot are offered in upper flap 3221 32211 are connected to venthole 3222, and there are gaps between the upper flap 3221 and sealed valve stem 321 of 32211 downside of gap slot.

Closing component 323 includes the stop sleeve 3231 for being used to support sealed valve stem 321, is set on stop sleeve 3231 Card cylinder 3232 and the sealing spring 3233 on card cylinder 3232, sealing is provided between stop sleeve 3231 and valve body 31 It is provided with rubber block 3235 in sealing ring 3234, stop sleeve 3231 and the chamber of the composition of card cylinder 3232 and for squeezing rubber The crushing block 3236 of block 3235 seals and is provided with spring cover plate 3237 on spring 3233, catch is provided on spring cover plate 3237 3238, catch 3238 is connected in the end of sealed valve stem 321.

Referring to Figure 11, valve-opening mechanism 4 includes the push rod 41 being connected on movable stand 24, is rotationally connected with hitting on crossbeam 1 Fork 42 and the compression bar 43 that connect with sealed valve stem 321 are fixedly connected with and are hit on push rod 41 and pitch 42 mutually matched bolts 411, it hits fork 42 and is fixedly connected with limited block 422 on the crossbeam of 43 side of compression bar, hit and pass through company between fork 42 and compression bar 43 Bar 421 connects, and one end of connecting rod 421 is rotatablely connected with fork 42 is hit, and the eccentric part of the other end and compression bar 43 is hinged, under compression bar 43 End is articulated on valve 3, is provided on compression bar 43 and is played on or off for driving sealed valve stem 321 to move up and down with control valve 3 The protrusion 431 closed.

Use principle：So that boiler bindiny mechanism 11 is docked with boiler, crossbeam 1 is fixed with boiler, then is passed through into valve 3 Gas, gas enter inner tube 2521 by valve 3, open driving motor 21, and driving motor 21 makes movable stand 24 travel forward, Movable stand 24 drive push rod 41 move forward, so that the protrusion 431 on compression bar 43 is pressed on sealed valve stem 321, sealed valve stem 321 to Lower movement makes sealing spring 3233 shrink, and drives lower Disc 3223 to move downward, lower Disc 3223 is made to divide with upper flap 3221 From, air-flow is entered by the gap slot 32211 and venthole 3222 of upper flap 3221 in valve body 31, the air pressure in valve body 31 with When ambient pressure is identical, upper flap 3221 moves downward under the effect of gravity, air inlet open, the air-flow in gas tube It enters in valve 3, sealed valve stem 321 can move down, and driving motor 21 drives the movement of outer tube 2522 on mounting bracket 25 simultaneously Rotation, makes puff prot 2523 on outer tube 2522 be threadingly advanced, and extend into boiler to boiler soot-blowing.

Driving motor 21 drives mounting bracket 25 to reversely rotate again back, drives the push rod 41 on movable stand 24 to valve 3 Direction is moved, and is hit in fork 42 when the bolt 411 on push rod 41 is connected in, and is pushed and hit fork 42 to the movement of 3 direction of valve, most Make to hit fork 42 eventually to be connected on limited block 422, be connected to the connecting rod 421 hit on fork 42 follow hit fork 42 be moved through it is certain away from From compression bar 43 is pushed out, so that the protrusion 431 for pushing down sealed valve stem 321 on compression bar 43 is detached with sealed valve stem 321, makes compression bar The pressure of 43 pairs of sealed valve stems 321 disappears, and seals 3233 diastole of spring, and sealed valve stem 321 is driven to move upwards, double to drive Flap 322 moves upwards, and air inlet is blocked.

After jet, valve 3 is closed, and the air pressure in valve body 31 at this time is less than or equal to extraneous air pressure, volute spring 333 One-way valve flap 334 on check valve valve rod 332 is elapsed into valve body 31, so as to open air intake, is made by natural diastole Extraneous air enters in valve body 31, is entered in air jet pipe 252 by valve body 31, to being cooled down in air jet pipe 252.

The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (9)

1. a kind of retractable soot blower, including crossbeam (1), be fixedly connected on crossbeam (1) tail portion valve (3), be set to crossbeam (1) the soot blowing component (2) of lower end and linking on the crossbeam (1) and with soot blowing component (2) opened with control valve (3) or The valve-opening mechanism (4) of closing is provided with the boiler bindiny mechanism (11) for being docked with boiler, soot blowing component (2) on crossbeam (1) Air jet pipe (252) is provided between valve (3), it is characterised in that：It is provided on crossbeam (1) and is used to support air jet pipe (252) Support component (12), the support component (12) includes abutting with air jet pipe (252) and playing a supportive role to air jet pipe (252) Ball (123) and ball (123) is connected to the fixing piece on crossbeam (1).

2. retractable soot blower according to claim 1, it is characterised in that：The fixing piece is to be fixedly connected on crossbeam (1) it U-shaped board (121) on and is fixed in U-shaped board (121) and turns for fixing ball (123) but not influencing ball (123) Dynamic fixed block (122).

3. retractable soot blower according to claim 2, it is characterised in that：The ball (123) is removably connected to solid Determine in block (122).

4. retractable soot blower according to claim 3, it is characterised in that：Through-hole is offered in the fixed block (122) (1221), through-hole (1221) internal thread is connected with fixing bolt (1222), is fixedly connected on fixing bolt (1222) solid Determine spring (1223), the end of the fixed spring (1223) is abutted with the ball (123).

5. retractable soot blower according to claim 1, it is characterised in that：The boiler bindiny mechanism (11) includes hinged In hinge bar (111), the linking arm (112) that is rotationally connected on hinge bar (111) and the company of being fixedly connected on crossbeam (1) Connect on arm (112) for air jet pipe (252) by connector (113).

6. retractable soot blower according to claim 1, it is characterised in that：The valve (3) includes valve body (31), valve body (31) it is provided on and unilaterally connected check valve (33) in valve body (31).

7. retractable soot blower according to claim 1, it is characterised in that：The soot blowing component (2) includes driving jet Manage the mobile mechanism that (252) are moved forward and backward and the rotating mechanism that driving air jet pipe (252) rotates.

8. retractable soot blower according to claim 7, it is characterised in that：The mobile mechanism includes driving motor (21), with driving motor (21) connecting worm (22) and the worm gear (221) engaged with worm screw (22), on the worm gear (221) It is coaxially connected with gear (23), the rack (231) for being fixed on crossbeam (1) bottom end, gear (23) are engaged on the gear (23) It is rotatably connected to movable stand (24), mounting bracket (25) is installed on movable stand (24), is rotatablely connected and is useful on mounting bracket (25) Connect the main rotary shaft (251) of air jet pipe (252).

9. retractable soot blower according to claim 8, it is characterised in that：The rotating mechanism includes and worm gear (221) Coaxially connected first gear (26) and the second gear (261) engaged with first gear (26), it is same in second gear (261) Axis connection has the first sprocket wheel (27), and chain (271) is engaged on the first sprocket wheel (27), be additionally provided on main rotary shaft (251) with The second sprocket wheel (272) of chain (271) engagement.