DE7931741U1 - SAFETY BURNER FOR POWDER FLAME SPRAYING - Google Patents

Description

Safety burner for pulper flame spraying

The invention relates to a safety burner for powder flame spraying with supply channels for fuel gas and for oxidation ^ and carrier gas in a burner body ^ of the one Having an injector with a powder feed channel, the latter having a shut-off device and a detachably attached one Powder feeding device for removable powder containers assigned*

Well-known safety burners of this type offer for the Powder container to a neck circumferential collar of the powder feeder, which in turn in a Housing part is screwed and from that of those powder feed channels as i. y. axial bore goes out. In the latter there is a hose piece which, on the one hand, is the outlet nozzle of the powder container as well as being able to be squeezed by a radial pin - this one is therefore a shut-off device that is actuated by means of a lever and is not secured against unintentional release is.

• ft · Γ · 1 · ■> It UM I ·· · ■ ·· ·· ■

"· · -T η · t" ι ItIIi

* ·· I · · B ι ■ II

• 1 ·> ·· «III IIttC

CE-IOB / X

So the inventor set himself the goal of handling to facilitate such a burner; to improve its function and especially the powder feed and to make the change of the powder container cheaper with secure locking. In addition, a simple and enables effective adaptation to specific working conditions and the safety of the burner can be increased.

This M / ird achieved that with the torch body a Carrier part for receiving an intermediate part of the powder guiding device is connected and the intermediate part is the shut-off device for the powder feed device contains, wherein the shut-off device, intermediate part and carrier part are designed so that the intermediate part can only be removed from the carrier part when the shut-off device is closed.

It is primarily a safety burner of the type mentioned at the beginning with fuel gas / oxidizing gas injector, powder / carrier gas injector and conveying channels for the fuel gas-oxidizing gas mixture on the one hand and the powder demanding carrier gas on the other hand, wherein in the Feed channels for the fuel gas and the oxidation and carrier gas are each arranged shut-off devices. the Powder feed device has a support part firmly connected to the burner and a support part from this removable, designed to accommodate the powder container and a shut-off device for the intermediate part containing powder, which shut-off device is designed together with the intermediate part and the support part so that the intermediate part is only visually impaired " This shut-off device can be removed from the support wedge.

t t! f (it s * ssss:

CE-108 / X - 3 -

According to the invention, the pocket part is on the carrier part arranged displaceably and exclusively displaceable at least in the vicinity of the working position or operating position out, the shut-off device and the Trägererteii are designed so that a shift can only take place from the working position when the shut-off device is closed.

According to one feature of the invention, the shut-off device is designed as a slide and a locking member is resiliently arranged in the carrier part, which in its rest position a displacement of the intermediate part from the working position prevents, wherein the slide has a part that in the open position of the shut-off device, actuation of the locking member to move the same prevented from a rest position.

Another design has proven to be beneficial, that the shut-off device is a rotatable shut-off disk has, which carries two diametrically opposed locking pins, each by a circular arc-shaped Pass through the slot of the intermediate part; η and from a sliding surface resting on the carrier part of the intermediate part protrude, the corresponding Sliding surface of the support part two the corresponding slots of the intermediate part opposite arc-shaped Has slots and two straight slots which extend in the direction of displacement of the intermediate part and one of which has two ends of the two circular-arc-shaped Connects slots and the other goes out from another end of a circular arc-shaped contactor, such that the locking pins when the shut-off disc is rotated from the open to the closed

• ι ^ nI a · · it in "" Τ

s ss sas s s ss *; s V.

It

CE-1Q8 / X

Position of the shut-off device, along the circular arc-shaped Get slots at one end of the straight slots of the support part and in this latter position allow a displacement of the intermediate part on the carrier part.

Furthermore, there is preferably one in the carrier gas supply channel between the shut-off element and the powder-carrier gas injector Storage chamber arranged.

According to the invention, the injector has one in the burner body inserted, exchangeable nozzle part and one opposite the nozzle part by screwing into the burner body adjustable, interchangeable injector needle carriers i .1, which are separated from one another by an exchangeable spacer, such that between them a cavity with something to choose from on a case-by-case basis Volume is created, with the powder feed channel in the cavity flows out.

The shut-off device for the O ^ ydations- and carrier gas flow and the shut-off element for the burner gas flow are provided with a common actuating element, which so is designed that when operated first the Fuel gas flow and then the oxidation and carrier gas flow is interrupted and vice versa when switching on the Oxydatiöns- and carrier gas flow before the burner gas flow will be produced.

S "J *
; ti <

Uli

CE-IOB / X - 5 -

The actuating member is preferably designed as a pivotable lever, each with an actuating element for a valve arranged in the feed channel for the fuel gas and one in the feed channel for the oxidation and carrier gas arranged valve cooperates, the angular position of the lever in which a valve from the open to the closed State or from the closed to the open state in which a valve is different from is that of the other valve.

The burner is also equipped with a removable handle provided, in which the feed channels for the fuel gas and for the oxidation and carrier gas continue, a check valve being arranged in each of these channels.

The invention is described in more detail below with reference to preferred exemplary embodiments shown in the drawing. It shows:

^c -. Fig. 1: the simplified longitudinal section

£ by a burner according to the invention with

ψ Powder feed device on a carrier part;

1 Fig. 2: the cross section through the powder feeder

direction according to line II - II in Fig. 1;

|: Fig. 3: a longitudinal section through a different

(; Leadership of the powder feeder

with support part;

, Fig. 4i is a plan view of the carrier part in

Embodiment of FIG. 3;

Fig. 5ί a view from below of an intermediate piece

the powder feeder *

6 -

■ 4 ·> i j i i i i ie tr-

CE-iöö / X

be ff ifi Figure I, simplified burner for powder lamb spraying Has a two-part Brerihkörper 1/1 ', in which feed channels for the fuel gas and for the Qxydätiöns = and carrier gas are arranged / which with 2 for the fuel gas, with 3 for the Öxydätiönsgäs with 3 * are referred to for the carrier gas to the powder feed <As Oxydatiöns- and carrier gas oxygen is formed by a common part 3 "of the ZUführkäriäle 3 is supplied 3 '* In the ZUführkanäien for the two gases jewels shut-off devices are 4, which are actuated by a common actuating member 6. 5 the Absperrüngorgane shown schematically * t for the oxygen and 5 for the fuel gas, for example, transversely to the plane of actuatable valves, while the actuating member 6 is formed as a pivotable about an axis 7 lever * the switching of the Valves 4, 5 are made by corresponding actuating surfaces 6 ¹ , 6 ″ of the lever 6, which are shaped in this way > that when switching off, first valve 5 and then valve 4 are actuated, while when switching on, first the flow of oxygen and then the flow of fuel gas is established. This is indicated schematically in FIG. 1 by the different distances between the actuation surfaces 6 ', 6 "and the corresponding actuation elements 4', 5 'of the valves.

The combustion body part 1 contains a conveying channel 8 for the powder-conveying carrier gas and 9 for the oxygen-fuel gas mixture. The latter is produced in an injector 10 which has a nozzle part 11, a spacer ring 12 and an injector needle carrier 13 with a filter 14. The spacer ring 12 has an opening 12 which is connected to the feed channel 2. A control valve 15, which is used to regulate the amount of fuel gas fed to the injector 10, is also arranged in the feed channel 2. This control valve enables _/ reproducible flame

t «# 4 · ί * II Wf ^v

I Ui ti <um (

_M ti ami H

dhäräkt-eiristikefi (neUtiifäl / öKydieifend, ifedUZierend) 2U efzielen,

The injector is interchangeable in all its parts in the fuel head part 1, whereby the nozzle part 11 is defined by the stop in its position * the distiänzifihg Ϊ2 can have different widths and the injector needle support part 13 can have different bore and shape And through a thread on its circumference it can be screwed into part 1 or is adjustable in it «The filter 14 has the important task of keeping dust and other impurities from the injector Injector 16 is arranged , which also consists of an eyelet part 17, a distancing ring 18 and an injector needle support 19 with filter 20. The parts of this injector are interchangeable and adjustable in a manner similar to that of the injector 10, with the spacer ring 18 having an opening 13 ' which is in communication with a powder feed device 21 * By the Wäihi and setting d he parts mentioned, the powder conveyor can be determined in a precisely defined and reproducible manner bÄWj set. For this purpose, the injectors 10, 16 are easily accessible through the corresponding bores after the burner body part 1 'has been removed.

In front of the injector 16, in the direction of gas flow, the part 1 has a storage chamber 22, the cross section of which is significantly larger than that of the feed channel 3 '. This storage chamber has the important one The task of causing the gas to flow through the injector 16 and delivery channel 8 after the valve 4 has closed, ! Which cleans the powder channel and prevents back diffusion of gas.

The delivery channels 8 and 9 end in the not-shown mouth part of the burner, which is designed in a known manner.

The powder feed device 21 is integral with the burner body connected carrier part 23, which laterally straight

GE = IOBZX

'4' * I * t * «* Til i f

ι · · ·· »(6 i till)

I · ♦ * * 4 · ΐ i i 5 ι

H 4 «4« «Wed 19

Lifty guides 23 'marked. A ZWiäcihe.nfc.eii 24 is ", wherein this shift in Ainet" in these guides Movable "is begrenzet of Trägeiifceiis 4 Tfägerteil 23 and intermediate portion 24 are provided with one Zen" direction duifäh a stop 23 or tifälen BöhfUilg 2 "5, 26, which are arranged coaxially in the working position shown in Figure 1 and are sealed by an O'Ring seal 25 'on the transition parts between the fixed and movable part nadh on the outside. In the intermediate part 24 a slide 27 is arranged displaceably in the longitudinal direction = bar. One end of this slide is lamellar and penetrates into one end position of the slide.

29 so that this channel 26 is closed. The other The end of the slide 27 protrudes from the intermediate part urd over ^ covers a recess in the open position of the slide

30 of the carrier part 23, in the recess 30 is a locking button

31 resiliently mounted in such a way that it is in its rest position about the surface of the carrier part 23, on which the intermediate part 24 slides during displacement, protrudes. The locking button 31 is only accessible when the slide 27 is in the closed position, i.e. when it is pushed into the intermediate part is. If the locking button 31 is depressed, the intermediate part 24 can be pushed out over the carrier part 23 and removed. When the slide 27 is open, the locking button prevents such a removal and thus a drainage of the powder through an opened channel 26.

The intermediate part 24 has a receiving part 24 'for one Powder container, not shown, whose head end can be inserted into a recess 24 ″ of the receiving part. The receiving and intermediate part 24, 24 ′ serves as a closure for the powder container, with which the latter can be removed from the burner when closed and placed on it.

The burner of Figure 1 is preferably one-handed

··· 4 * ί · i i j

* «44 * 4 * # IJ) I)

«(« If

a * * 1 * 4 (1 «Ii

CE-108 / X - 9 -

Verifehen / in which the OaS = Zufühiikänäie (2, 3 ") för" act, Whereby this aiii not shown find the Gififfes an appropriate flexible lines are * in the so confused A RÜöksöhiägVentii 41, -42 is included in each Züfühirkkanäle where- = » is achieved by an additional Ölcher'Urig of the burner

Figures 3, 4 and 5 show another ÄUsführurigsform deif PuiverzUführvorrichtung. · 3 shows in longitudinal section the Trä is = gerteil shown the intermediate part / which at the designated in the same way parts of Figure 1 correspond * The corresponding Pülvefkänäle 25, 26 are This Äüsführüngsform made lockable by a shut-off disc 50 * This is rotatable about a screw bolt Sl in the intermediate part 24, -wherein the channel 26 is eccentric to the axis of rotation of the disc 50 * The disc 50 is provided with a window 52, which is in a position of Disk (Figure 3) opens the powder channel 26.-Furthermore, the disk 50 carries locking pins 54, 54 'at two diametrically opposite points, which are arranged parallel to the axis of rotation of the disk and protrude beyond the bottom surface of the intermediate part 24. in which the disc 50 is attached, a bottom part 55 is closed, which together with the Intermediate part 24 forms two circular arc-shaped slots 53, 53 ', the locking pins 54, 54' passing through these slots. The carrier part 23 has two circular arc-shaped slots 56, 56 ″ into which the locking pins 54, 54 ′ engage.

Figure 4 shows a plan view of the support part 23, in which the Shape of the slots 56, 56 'in the sliding surface becomes visible. The carrier part also has two straight slots 57, 57 ', the slot 57 connecting two ends of the two circular arc-shaped slots and the straight slot 57 'from the other The end of the arcuate slot 56 'goes out. The two slots 57 and 57 'extend in the direction of displacement of the intermediate part 24 so that the locking pins 54, 54 'in the corresponding angular position of the disc 50 in the slots

CE-10B / X · '"J iQ ^l -" ^c

57 and 57 'can be moved.

Figure 5 shows a bottom view of the intermediate part 24, in which the circular arc-shaped slots 53, 53 'and those passing through them Locking pins 54, 54 'are visible. The shut-off disk 50 is provided with two handles 58, 58 'with which it can be rotated to operate the lock. The position shown in Figure 5 corresponds to the closed state of the powder feed device, in which the locking pin 54 on the closed Side of the circular arc-shaped slot 56. is located. By turning the shut-off disc in the direction shown The arrows reach the pins 54, 54 'in their setting Ends of the circular arc-shaped slots 56, 56 'to which the straight Connect slots 57, 57 '. In this position is the window 52 of the shut-off disk 50 from the dashed line in FIG unscrewed open position shown and the powder channel 26 is thus closed. The intermediate part 24 can now can be withdrawn as mentioned by sliding along the sliding surface of the carrier part 23.

The burner according to the invention is thus distinguished by a special one Handiness and safety in operation and operation. In particular, the powder feed device enables a quick and easy change of the powder without risk of contamination of the burner, while the storage chamber a Self-cleaning of the injector in the event of a quick shutdown caused by an actuating lever. The coupling of the gas valves is Another important advantage of this burner, in which the setting of the flame character by a single control valve is particularly important becomes simple and clear. In this context, the interchangeability of the injectors and the adjustability the performance characteristics of the same through interchangeable parts of particular importance in practice.

■■ '■■■ Ι. ·. Γ '·! ■

H Kt

DIPU-INGp GERHARD F,

PATENT ADVOCATE

" Me

<Cl

ο »" »η: I! AKte
. 01/25/1985 IlcaseCE- , Naming / designation I! Keyword - Keyword Ij Applicant i
108 / XI burner attachment || Applicant CASTOLIN S, A.I 1 Naming / designation I. Position numbers 1
reference numbers I I. f I.
i Ä P03. Part of the burner body (l ^r Item Screw bolts 1 '= part of the burner body | 12 '= opening in 12 | 1 Feed channel F. Fuel gas 51 Window in 50 .-. '"! <i"; ·, ·!
I.>. 1 ι ¹ SiM · P. I. 2 7nfnhrkanal F. nxyriqtinnsrps 52 Uli Srhl if-7 18 '= opening in 18 I. S.
1 3 Shut-off device in 3, 3 ', 3 ^M 53 I ¹ V-locking pin at 5Π 3 '= feed channel for carrier ga: I. 4th Shut-off device in 2. 54 Bottom part at 24 ¹ I. 5 Lever for 4, 5 55 Slot in 23 3 ¹ '= aemeinsame.v Kanalab / 5 '- L clocks in Ib I. 6th AnhRR v. , 6 56 rjprnHl inigpr Snhlif-y Si-SA cut u. 3, v 23 '' = stop in 23 I. 7th Conveying channel for Träaerqas 57 Handle on 50 4 ', 5 "= actuator j 24 '= receiving part v. 24 i 8th Delivery channel for mixture 58 ν. 4.5 24 '' = recess v. 24 ' 1 9 Injector. In 2 - 9 59 6, 6 ¹ '= actuation surfaces vj 75 '= D-ring seal I. 10 Di'iRRntfiil υ. 10 60 1 11th Spacer ring v. 10 61 I. 12th Injector needle carrier v. 10 62 13th Fi 1 Ι-ργ w. ΙΟ 63 i
'i 14th Control valve in 2 64 53's slot 15th Injector in 3 - 8 G5 54 '= locking pin on 5C ü
f 16 Nozzle part in 16 66 I. 17th Picfρη7Γinrj in IA 67 56 '.. - Shiite? in 1Λ 1
I. 18th Tn jpkf-needle carrier part in 1 ( 68 57'a slot at 56 19th Filter in 16 69 58's grip on 50 20th Powder feeder 70 21 Sf "fii ik ^ n ^ R ^ · \ 'nn 1" 71 22nd Carrier file on 1 72 23 Intermediate piece 73 24 Bore in 23 74 25th Bore in 24 75 26th Slide in 24 76 27 O-ring seal 77 Telegr./Cäbleä!
ööderieeepälerif (?)
fele / äfi /0^7.111 (ί'ίίΙΫ * / 28 O-ring seal on 26 78 - 29 Aiifsnphmi inrj in 73 79 30th Locking button 80 31 81 32 82 33 83 34 84 '35 85 -36 86 37 87 38 88 39 Handle 89 40 Check valve in 3 ' ¹ 90 41 Check valve in 2 42 43 44 46 46 47 · 48 49 aAkgHötitt ^ hoihp 50 * I

Claims (1)

1. Safety burner for powder flame spraying with feed channels for fuel gas as well as for oxidation and carrier gas in a combustion body that has an injector with a Has powder feed channel, the latter having a shut-off device as well as a detachably attached powder feed device assigned for removable powder containers, characterized by that with the burner body (1) a carrier part (23) for Receiving an intermediate part (24) of the powder feed device (2i) is connected and the intermediate part contains the shut-off device for the powder feed device, wherein the shut-off device, intermediate part and support part are designed so that the intermediate part when open Shut-off device is locked against removal from the front of the carrier part. 2. Safety burner according to claim 1, characterized in that that the intermediate part (24) is arranged displaceably on the carrier part (23) and at least in one operating position ärfetiefbäf is, where the Absperfeinrichtung for the Powder feed channel (26) a locking device against is a shift from the operating position with the powder feed channel open. - A 2 4Jl i * ti n · η a • r r «" ■■ Ii mi CE-IQB / X - A 2 - 3. Safety burner according to claim 1 or 2, characterized in that that the shut-off device is designed as a slide (27) and a Uerriegelungsoruan in the carrier part (23) (31) is resiliently arranged, which in the rest position locks into the thrust path of the intermediate part (24) enters. 4. Safety burner according to claim 3, characterized in that that the slide (27) is in the open position of the shut-off device with one part of the locking member (31) engages and this against access for movement the same from a rest position covers. 5. Safety burner according to claim 1 or 2, characterized in that that the shut-off device is the powder feed channel (26) transversely rotatable shut-off disk (50) with a window eccentric to its axis of rotation (51) (52), the path of movement of which crosses the powder to guide channel. 6 «safety burner according to claim 5, characterized in that that from the shut-off disc (50) eccentric locking pins (54, 54 ') protrude parallel to the axis of rotation (51), in partially circular arc-shaped slots (53, 53 ') of the intermediate part (24) protrude and determine with these end positions of the rotatable shut-off disk, one of the end positions being the The opening position of the shut-off disk is. - A 3 - «« R «** it ii IUI Ή '' it ti hit If tr a 3 «I ^ i Sißhefhoifesbfefihef flat claim 5 characterized barren of ge = _f kennzeiöhnet that the Abspeffscheibe (5 NC) with their Vef f iegö iufigssfei ften (54,54 ') comprises a guide * the locking of the Pul vefzufühfu ^ gsvöfrichtung (21) on the BfennerUöfpef (1 ) forms 8i Sichefheltsbrehher according to one of claims 5 to 7 _{f, characterized by two locking pins (5 4}} 5 A ') lying diametrically opposite one another on the perfection disk (50) from a sliding surface of the intermediate part (24) resting on the carrier part (23), whereby a corresponding sliding surface of the Tfägerteiis has two the Schilt toe (53,53 ') of the intermediate = partly opposite corresponding krelsbogeh-shaped contactors (56j 56') as well as two straight slots (56,56 ')) which' are in the Verschlebunysr ichtun g of the intermediate part and one of which connects two ends of the two circular arc-shaped slots of the Trägefteiis and the other extends from the other end of the one circular arc-shaped slot, the locking pins being guided in the arc-shaped slots when the shut-off disk is rotated from its open position into the closed position and in VerschluGstellunn, associated with the straight slots of the carrier part t sindj which latter trajectories form for the Verriegeiungsstιfte for moving the intermediate part on the carrier part i -A4- ee-lae / x -a 4- 9. Sieherhei tsbrehrier "according to one of the appendices 5 to B, characterized in that the Abspef fsöheibe (JÖi'zwei lying on a diameter, threadiäi \ iöm intermediate piece (24) äbkfägende Hahdgjiffen (58,58 *) , Idi Si ehefheitsbfenhef according to the preamble of the claim Marked Ij! that the injector (16) one in the burner body (1) inserted) exchangeable Nozzle part (17) and one adjustable relative to the latter by screwing it into the burner body arranged interchangeable 1 ηjektomade I-T rübersei1 (19)) which by an exchangeable spacer (18) υοη are separated from each other in such a way that between they create a cavity of selectable volume) whereby opens into the cavity of the powder feed channel (25, 26). ils safety burner according to claim 1 or 10 with shut-off device for the oxidation and carrier gas flow as well as for the burner gas flow, characterized in that that the shut-off devices (6.5) have a common actuator (6) is assigned, which is designed so that when it is transferred into a locking position first the shut-off element (5) for the fuel gas flow and then the shut-off element (4) for the oxidation and carrier gas flow can be actuated as well as during transfer from the locked position to an operating position Shut-off device for the oxidation and carrier gas flow Opened in front of the shut-off device for the Breriner gas flow is. . ·::. ' ■ • · · ■ R · * • · <t »« «· Kit.) * * * ^ri * i tu * ! "'f j i ί ί '* · »' ι * ι ti ti ti * MIM ■ · ' GE-iÖB / X, -A 5 = 12. Siöhefheifcsbfenner according to Anspfuefi ü, characterized »that the actuating member (6) is designed as a swivel = ble lever) which each with a loading = actuating element (5 ¹ ) for a in the feed channel (2) provided for the fuel gas valve (5) and a valve (ü) arranged in the ZuFühfkanai (3 ¹¹ ) for the Öxydatiohs- ^ and carrier = gas cooperates ₍ whereby the angular position of the lever in which a V / entÜ is brought from the open to the closed state or from the closed to the open state is) in which one valve is different from that of the other valve » 13i safety burner according to claim IZ) thereby marked ^ draws) that the distance to the actuator (5 ') in the feed channel (2) associated Be did igungsfläche of the lever (6) from the actuating element is shorter than the distance between the actuating element (4 ') of the other Feed channel (3 ") flat from an actuation assigned to it. iü. Safety burner according to claim 12 or 13, characterized in that the lever (6) is pivotably mounted between the actuating elements (4 ', 5') * 15. Safety burner according to the preamble of claim and with a shut-off element for the gas feed channel, characterized in that between the shut-off element (4) and the injector (16) a storage chamber (22) with ^ opposite the-Qüersohnitfe of the feed channel C3 ¹ ) essential * Lent larger cross-section is provided. * · · · ·
»· · · ■ · · · · : - :. :