CN205746820U - Novel super-high velocity of sound flame gun - Google Patents
Novel super-high velocity of sound flame gun Download PDFInfo
- Publication number
- CN205746820U CN205746820U CN201620652145.4U CN201620652145U CN205746820U CN 205746820 U CN205746820 U CN 205746820U CN 201620652145 U CN201620652145 U CN 201620652145U CN 205746820 U CN205746820 U CN 205746820U
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- cavity
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Abstract
This utility model relates to a kind of novel super-high velocity of sound flame gun, before it mainly includes burning chamber shell and is the most coaxially fixed on burning chamber shell, the gun barrel housing at rear two ends and coaxial tailstock, it is located at the combustor in combustion chamber shell body, it is located at the gun barrel in barrel casing body, two-way high pressure oxygen input pipe, two-way high pressure liquid fuel input pipe, catalytic ceramics sheet, ignition electrode, powder feeding pin, water collar etc., compared with conventional ultra high velocity of sound flame gun, the structure design of novel super-high velocity of sound flame gun of the present utility model uniqueness achieves effluxvelocity, being greatly improved of particle rapidity, the jet of 11 Mach cones can be realized, effluxvelocity reaches 3500m/s, particle rapidity reaches 1500m/s.
Description
Technical field
This utility model relates to a kind of superelevation velocity of sound flame gun, particularly relates to one and has high effluxvelocity and particle speed
The novel super-high velocity of sound flame gun of degree.
Background technology
Superelevation velocity of sound flame heat spray technology is widely used in industrial every field, has been increasingly becoming numerous machine
One requisite technique in tool manufacture course of products, such as turbine blade, valve, gate, piston rod, steel structure bridge
Deng, the performances such as wear-resisting, corrosion-resistant, the endurance of equipment surface can be effectively improved, play raising serviceability, increase the service life
Effect.Along with development in recent years, the most both at home and abroad on the superelevation velocity of sound flame heat spray technology that is applied in Practical Project
It is broadly divided into three major types: the first kind is the superelevation velocity of sound plasma spray technology using gaseous fuel (such as propane etc.) with oxygen combustion,
The DJ-2700 etc. developed such as METCO company of the U.S., it is 500-600m/s that this technology can realize particle rapidity.Due to particle speed
Spending relatively low, the coating porosity obtained is higher, and adhesion is not enough, is easily caused coating localized delamination and relatively low particle speed
Degree can increase the oxidation of coating and affect coating quality；Equations of The Second Kind is gaseous fuel (such as propane etc.) and atmospheric combustion and passing through
Pressure-air improves the superelevation velocity of sound plasma spray technology of effluxvelocity, and the advantage of this technology applies to the material spray of low melting point
It is coated with, if material melting point improves, then can produce " fecula ", although very trace, but have impact on coating material to a great extent
Abrasion resistance, especially anti-erosion performance；3rd class is the superelevation velocity of sound of liquid burning (such as aerial kerosene etc.) and oxygen combustion
Plasma spray technology, owing to the fluid combustion thermal sprayings such as aerial kerosene are far above the gaseous fuels such as propane, the most this skill
Art can realize higher effluxvelocity, and its particle rapidity reaches 1100m/s.But due to liquid fuel and oxygen mixing and
Burning is abundant not, easily produces carbon distribution, and carbon distribution is injected into coating surface, affects coating quality, and in this effluxvelocity
Under, powder particle still can be aoxidized, and particularly such as the metal-cermic coating of WC class, coating can be caused negative shadow by oxidation and decarbonization
Ring.
Above superelevation velocity of sound flame heat spray technology classification depends primarily on design and the structure of spray gun, it can be seen that spray
Rifle is the part of most critical in superelevation velocity of sound flame heat spray system, and the design level of spray gun and version etc. determine whole
The performance of system, and then determine the performance of coating.The superelevation velocity of sound flame gun both domestic and external that retrieves at present (as
The superelevation velocity of sound flame gun that CN200920265424.5, CN01246986.6, CN03211072.3 etc. introduce) all fail at grain
Burning adequacy, the reasonable structure of sub-speed, liquid fuel and oxygen, install and use the aspects such as convenience and conscientiously obtain prominent
Broken.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, it is provided that a kind of effluxvelocity and particle rapidity are the biggest
The novel super-high velocity of sound flame gun that width improves.
Novel super-high velocity of sound flame gun of the present utility model, including burning chamber shell and be the most coaxially fixed on combustor
The gun barrel housing at the forward and backward two ends of housing and coaxial tailstock, be provided with coaxial combustor, formed therebetween close in combustion chamber shell body
The the first water-cooled cavity closed, is provided with coaxial gun barrel in barrel casing body, form therebetween the second airtight water-cooled cavity, gun barrel
Housing extenal fixation has coaxial water collar, forms therebetween the first airtight backwater cavity, the second water-cooled cavity and first time
Water chamber connects, and between first and second water-cooled cavity, connection forms water-cooled path, and burning chamber shell also has the second backwater cavity,
First and second backwater cavity connection forms backwater path；
Combustor internal cavity is Laval configuration, keeps close in combustor is inserted in coaxial tailstock front end and with Inner Wall of Combustion Chamber
Envelope, coaxial tailstock front end face has annular groove, is provided with catalytic ceramics sheet and is placed on the metallic sheath on catalytic ceramics sheet in groove,
The periphery of catalytic ceramics sheet inner headed face and metallic sheath all keeps sealing with coaxial tailstock, the ring of catalytic ceramics sheet and coaxial tailstock
Formation space, connected in star face, coaxial tailstock is provided with lead to this space two-way high pressure oxygen input pipe and with two-way hyperbaric oxygen
The two-way high pressure liquid fuel input pipe that gas input pipe is respectively communicated with, it is empty that ignition electrode inserts combustor from axle center through coaxial tailstock
Intracavity, described catalytic ceramics sheet has some through holes around axle center annular spread, and powder feeding pin is inserted into through burning chamber shell
Chamber front end cavity, powder feeding pin shell and burning chamber shell form confined space, this space and backwater communication；
Burning chamber shell is provided with coolant intake and cooling water outlet mouth, coolant intake and the first water-cooled cavity bottom even
Logical, cooling water outlet mouth and the connection of the second backwater cavity bottom.
In technique scheme, the described through hole on catalytic ceramics sheet is the oblique through hole towards combustor axle center.
Described water-cooled path is provided with many places hole sizer, and described hole sizer is arranged on burning chamber shell and gun barrel housing, by
The some apertures being distributed ringwise around combustor axle center are constituted.
Between described water collar with gun barrel housing, between coaxial tailstock and burning chamber shell, gun barrel housing and burning chamber shell
Between all use metal swivel nut to lock.
Described coolant intake and cooling water outlet mouth may be contained within the rear end of burning chamber shell.
A kind of novel super-high velocity of sound flame spray coating device, including above-mentioned novel super-high velocity of sound flame gun.
The beneficial effects of the utility model are:
(1) compared with conventional ultra high velocity of sound flame gun, novel super-high velocity of sound flame gun of the present utility model uniqueness
Structure design achieves effluxvelocity, being greatly improved of particle rapidity, and can realize the jet of 11 Mach cones, and effluxvelocity reaches
3500m/s, particle rapidity reaches 1500m/s.
(2) connector between combustor and gun barrel during this utility model eliminates conventional ultra high velocity of sound flame gun, adopts
Directly being connected with gun barrel with the combustor of band convergent-divergent channel so that the structure of spray gun is simpler, stability is more preferable, and can
Obtain higher bore pressure, the raising of effluxvelocity can be promoted.
(3) using two-way oxygen and liquid fuel input, liquid fuel enters in oxygen pipeline with certain pressure, and high
The oxygen of pressure also has certain siphonage to liquid fuel so that liquid fuel enters in oxygen pipeline smoothly, prevents down
Stream.
(4) in oxygen pipeline, liquid fuel can preferably mix with oxygen, and by catalytic ceramics sheet with
Can obtain further behind the space that the annular groove face of coaxial tailstock is formed and be sufficiently mixed, well-mixed oxygen-fuel leads to again
The aperture (especially tiltedly through hole) crossing annular spread on catalytic ceramics sheet enters in combustor, carries out substantially stabilized burning, can
To obtain higher, more stable, burning capacity more fully, and avoid producing carbon distribution, it is thus achieved that cleaner coating, improve and be coated with
Layer quality.
(5) backwater of current superelevation velocity of sound flame gun mainly uses two kinds of forms: arrange backwater holster, backwater holster
One end is arranged on gun barrel front end, is inserted in burning chamber shell by a water pipe metal tube, needs gun barrel, backwater rifle during installation
On set and burning chamber shell, the relative position adjustment of this three of installing hole is to mating completely, just can complete to install, and this gives and installs
Bring inconvenience；Cancel this root metal tube on backwater holster, water return outlet is set directly at gun barrel housing forward end, and will
Cooling water pipe is connected on water return outlet, and this water return pipeline easily interferes with workpiece and frock etc. during spraying, collides；
And this utility model uses the form backwater as cooling water of cold water jacket, and swivel nut is used to fix, have stably,
The features such as convenient are installed, it is to avoid the backwater holster that conventional lance uses exists the problems such as installation difficulty, and also solves one
In spraying process, water return pipeline is easily and workpiece and frock such as interfere at the problem owing to using gun barrel front end backwater for a little spray guns.
(6) many places hole sizer is set on water-cooled path, chilled water flow velocity can be made more uniform, with combustor and gun barrel outer surface
Contact more uniform such that it is able to realize more preferable cooling effect, additionally, cooling water backwater path can also be to powder feeding pin
Cool down, prevent powder feeding pin from causing damage due to high temperature.
Accompanying drawing explanation
Fig. 1 is superelevation velocity of sound flame gun structural representation；
Fig. 2 is coaxial tailstock and catalytic ceramics chip architecture schematic diagram；
Fig. 3 is A-A profile；
Fig. 4 is B enlarged drawing；
Fig. 5 is F-F profile；
Fig. 6 is C enlarged drawing；
Fig. 7 is D enlarged drawing；
Fig. 8 is E enlarged drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawings specific embodiment of the utility model is described further.
Fig. 1 show a kind of preferably case study on implementation of this utility model novel super-high velocity of sound flame gun, but is not limited only to
This.As it is shown in figure 1, include two-way high pressure oxygen input pipe 1, two-way high pressure liquid fuel input pipe 2, coaxial tailstock 3, catalysis pottery
Ceramics 4, ignition electrode 5, combustor 6, gun barrel 7, powder feeding pin 8, burning chamber shell 9, gun barrel housing 10, water collar 11, cooling water inlet
Mouth 12, cooling water outlet mouth 13, water-cooled path 14, backwater path 15, lock swivel nut 16,17,18.
Coaxial tailstock 3 is arranged on the caudal end of spray gun, and fore-end injects combustor 6, and keeps close with Inner Wall of Combustion Chamber
Envelope.Coaxially locked by locking swivel nut 18 between tailstock 3 and burning chamber shell 9.
It is illustrated in figure 2 the structural representation of coaxial tailstock 3 and catalytic ceramics sheet 4, two-way high pressure oxygen input pipe 1, two
Road high pressure liquid fuel input pipe 2 and catalytic ceramics sheet 4 are installed on coaxial tailstock.
Hyperbaric oxygen trachea inserts from coaxial tailstock rear portion, high pressure oxygen pipeline is provided with an aperture, with highly pressurised liquid
Fuel conduit connects, and high pressure liquid fuel enters in oxygen pipeline and mixes with oxygen, enters annular catalyst potsherd 4 together
The space of annular that formed of the groove of an end face and coaxial tailstock front end face in obtains and mixes further, and pass through to be arranged on
On catalytic ceramics sheet 4 in the annular groove of coaxial tailstock 3 front end, the some oblique through hole (such as Fig. 3) of annular spread enters combustor
In, the mixture of liquid burning and oxygen obtains sufficiently mixing when by catalytic ceramics sheet, and by catalytic ceramics sheet
On oblique through hole uniformly enter in combustor, and keep the direction in axle center.
Being cased with metallic sheath at catalytic ceramics sheet periphery, catalytic ceramics sheet 4 inner headed face and coaxial tailstock keep sealing, metal
Set periphery also keeps sealing with coaxial tailstock 3, it is ensured that will not cause tempering.
After the mixture of well-mixed fuel and oxygen enters the center of combustor 6, by from coaxial tailstock
Axle center, rear end is inserted the ignition electrode 5 of combustor and is lighted, and liquid fuel fully burns with oxygen and produces jet-flow at a high speed, combustion gas
Jet is from gun barrel outlet ejection after the further speeding up of the Laval configuration in combustor and gun barrel 7, and effluxvelocity can
Reach 3500m/s.
Powder feeding pin 8 enters chamber front end horn mouth region through burning chamber shell 9, is uniformly delivered in flame stream by powder
The heart, as shown in Figure 6, through high temperature, high-speed jet melted and after accelerating, powder particle can be ejected into the speed of 1500m/s
Surface of the work, forms coating.
Use recirculated water cooling mode spray gun is cooled down, comprise the water-cooled part by water inlet to spray gun front end and
By the backwater part of spray gun front end to outlet.
Forming confined space that is first water-cooled cavity between burning chamber shell 9 and combustor 6, cooling water intake 12 is arranged
Connecting with this cavity on burning chamber shell 9, combustor 6 and powder feeding pin 8 front end are carried out by the cooling water in this cavity
Continue after cooling, in the cavity (the second water-cooled cavity) moving forward between gun barrel 7 and gun barrel housing 10, gun barrel to be cooled down,
Then cavity (the first backwater cavity between gun barrel housing 10 and water collar 11 is entered by the looping pit of gun barrel housing 10 front end
Body) in, the second backwater cavity that the direction toward burning chamber shell 9 is back on burning chamber shell, powder feeding pin 8 shell and combustor
Forming confined space between housing, with backwater communication, the latter half of powder feeding pin 8 is carried out cold by the cooling water of backflow simultaneously
But, finally flow out from outlet 13.
Water-cooled path is provided with many places hole sizer, as shown in Fig. 4,5,7,8, i.e. at burning chamber shell 9, gun barrel housing 10
On be provided with some apertures of annular spread, these apertures are in water-cooled path, and cooling water is by these annular spread
Aperture, flow velocity can keep more uniform, more uniform with contacting of combustor 6 and gun barrel 7 outer surface surface, it is possible to realizes more preferably
Cooling effect.
Water inlet 12 and outlet 13 are arranged on burning chamber shell 9, are in the rear portion of spray gun, it is to avoid the pipe of water-cooled
Interference is caused during spraying in road.
Water collar 11 can be arranged on gun barrel housing 10 easily by metal swivel nut 16, it is to avoid returns in conventional lance
The situation of installation difficulty between hydraulic giant set and burning chamber shell.
Coaxial tailstock 3 and the contact site of combustion chamber shell 9, gun barrel housing 10 and the contact site of burning chamber shell 9, water-cooled
Set 11 and the contact site of gun barrel housing 10 are respectively adopted metal swivel nut 15,16,17 and lock.
Claims (5)
1. a novel super-high velocity of sound flame gun, it is characterised in that include burning chamber shell (9) and be the most coaxially fixed on combustion
Burn the gun barrel housing (10) at housing (9) forward and backward two ends, room and coaxial tailstock (3), coaxial in combustion chamber shell body be provided with combustor
(6), form therebetween the first airtight water-cooled cavity, coaxial in gun barrel housing (10) be provided with gun barrel (7), shape therebetween
Becoming the second airtight water-cooled cavity, gun barrel housing (10) extenal fixation has coaxial water collar (11), is formed therebetween airtight
First backwater cavity, the second water-cooled cavity and the connection of the first backwater cavity, between first and second water-cooled cavity, connection forms water-cooled path
(14), burning chamber shell (9) also having the second backwater cavity, first and second backwater cavity connection forms backwater path (15)；
Combustor internal cavity is Laval configuration, keeps in combustor (6) is inserted in coaxial tailstock (3) front end and with Inner Wall of Combustion Chamber
Sealing, coaxial tailstock front end face has annular groove, is provided with catalytic ceramics sheet (4) and is placed on the gold on catalytic ceramics sheet in groove
Belong to set, the periphery of catalytic ceramics sheet inner headed face and metallic sheath all with coaxial tailstock (3) keep sealing, catalytic ceramics sheet (4) and
The formation space, annular groove face of coaxial tailstock, coaxial tailstock is provided with the two-way high pressure oxygen input pipe leading to this space
(1) two-way high pressure liquid fuel input pipe (2) and with two-way high pressure oxygen input pipe being respectively communicated with, ignition electrode (5) is from axle center
Insert in chamber cavity through coaxial tailstock, described catalytic ceramics sheet (4) have some through holes around axle center annular spread,
Powder feeding pin (8) is inserted into chamber front end cavity through burning chamber shell, and powder feeding pin shell forms confined air with burning chamber shell
Between, this space and backwater communication；
Burning chamber shell (9) is provided with coolant intake (12) and cooling water outlet mouth (13), coolant intake (12) and the first water
Cold cavity bottom connects, and cooling water outlet mouth (13) connects with the second backwater cavity bottom.
Novel super-high velocity of sound flame gun the most according to claim 1, it is characterised in that described catalytic ceramics sheet (4)
On through hole be the oblique through hole towards combustor axle center.
Novel super-high velocity of sound flame gun the most according to claim 1, it is characterised in that on described water-cooled path (14)
Being provided with many places hole sizer, described hole sizer is arranged on burning chamber shell (9) and gun barrel housing (10), and often place's hole sizer is by around combustor
Some apertures that axle center is distributed ringwise are constituted.
Novel super-high velocity of sound flame gun the most according to claim 1, it is characterised in that described water collar (11) and rifle
Between tube shell (10), between coaxial tailstock (3) and burning chamber shell (9), all use between gun barrel housing (10) and burning chamber shell (9)
Metal swivel nut is locked.
5. a novel super-high velocity of sound flame spray coating device, it is characterised in that this device includes such as any one of claim 1-4 institute
The novel super-high velocity of sound flame gun stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652145.4U CN205746820U (en) | 2016-06-23 | 2016-06-23 | Novel super-high velocity of sound flame gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652145.4U CN205746820U (en) | 2016-06-23 | 2016-06-23 | Novel super-high velocity of sound flame gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205746820U true CN205746820U (en) | 2016-11-30 |
Family
ID=57381380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620652145.4U Withdrawn - After Issue CN205746820U (en) | 2016-06-23 | 2016-06-23 | Novel super-high velocity of sound flame gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205746820U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016258A (en) * | 2016-06-23 | 2016-10-12 | 水利部杭州机械设计研究所 | Novel hypersonic flame spraying gun |
| CN113061831A (en) * | 2021-03-17 | 2021-07-02 | 中国航发动力股份有限公司 | Preparation method of ceramic abradable seal coating |
| CN115234912A (en) * | 2022-07-19 | 2022-10-25 | 哈尔滨汽轮机厂有限责任公司 | Turbine red lantern ring flame heating device and using method |
-
2016
- 2016-06-23 CN CN201620652145.4U patent/CN205746820U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016258A (en) * | 2016-06-23 | 2016-10-12 | 水利部杭州机械设计研究所 | Novel hypersonic flame spraying gun |
| CN106016258B (en) * | 2016-06-23 | 2018-06-19 | 水利部杭州机械设计研究所 | A kind of superelevation velocity of sound flame gun |
| CN113061831A (en) * | 2021-03-17 | 2021-07-02 | 中国航发动力股份有限公司 | Preparation method of ceramic abradable seal coating |
| CN115234912A (en) * | 2022-07-19 | 2022-10-25 | 哈尔滨汽轮机厂有限责任公司 | Turbine red lantern ring flame heating device and using method |
| CN115234912B (en) * | 2022-07-19 | 2023-10-10 | 哈尔滨汽轮机厂有限责任公司 | Turbine red collar flame heating device and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20180619 |
|
| AV01 | Patent right actively abandoned |