CN201620186U - Novel low-temperature high-speed supersonic flame spraying device - Google Patents
Novel low-temperature high-speed supersonic flame spraying device Download PDFInfo
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- CN201620186U CN201620186U CN2009202654245U CN200920265424U CN201620186U CN 201620186 U CN201620186 U CN 201620186U CN 2009202654245 U CN2009202654245 U CN 2009202654245U CN 200920265424 U CN200920265424 U CN 200920265424U CN 201620186 U CN201620186 U CN 201620186U
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Abstract
The utility model relates to a novel low-temperature high-speed supersonic flame spraying device, including a spray gun, a coal oil supply system, an oxygen supply system, an ignition system, a powder feed system, a water-cooling system and a control system; the spray gun includes an outer casing, a burning chamber and a nozzle; the coal oil supply system, the oxygen supply system and the ignition system are connected to the burning chamber; the powder feed system and the water-cooling system are connected to the nozzle; the burning chamber is also connected with a water or nitrogen gas injection system for injecting water or nitrogen gas into the burning chamber directly; the control system is connected with the water-cooling system, the coal oil supply system, the oxygen supply system, the water or nitrogen gas injection system, and the powder feed system to control flux and pressure of each system. According to the utility model, by means of injecting water or nitrogen gas directly into the burning chamber, the gas temperature of the burning chamber is reduced and the pressure of the burning chamber is increased rapidly, so as to implement an effect of low-temperature high-speed supersonic flame spraying.
Description
Technical field
The utility model relates to technical field of hot, particularly a kind of new type low temperature high speed supersonic flame sprayer.
Background technology
Hypersonic flame spraying is to utilize the flame of the combustion-supporting gas generation of fuel (kerosene, propylene, acetylene or hydrogen) and air or oxygen as thermal source, thermal source with spray material than hot melt or semi-molten, the compressed air stream that the high speed flame that relies on flame to produce through the Raoul nozzle flows or adds, the molten drop of atomizing is quickened, with the processing method of high-velocity jet, be present important hot-spraying techniques to matrix surface formation coating.According to the difference of thermal source, hot-spraying techniques commonly used also comprises flame plating, electric arc spraying, detonation flame spraying, cold spraying and plasma spraying etc.These spraying methods respectively have relative merits, are applied to different fields.The flame spray coating quality is lower, but equipment is simple, and is with low cost, can be used for site operation; The spray efficiency height of electric arc spraying, easy to operate, equipment and production cost are lower, mainly have superiority at the quick manufacture view of long-effective corrosion, reparation and mould; Detonation flame spraying coating quality height, but the production efficiency of coating is low, and make application be subjected to certain restriction because of equipment is heavy; Cold spraying is mainly used in the metallize coating, and coating quality is higher, but the equipment complexity, production efficiency is very low, uses very limited; The heat source temperature height of plasma spraying is mainly used in the dystectic ceramic coating of preparation.Hypersonic flame spraying is the fastest spraying method of development in recent years, and coatings prepared is superior in quality, is mainly used in preparation metal or metal-ceramic coating.Yet because the flame temperature of existing supersonic flame sprayer is higher, flame flow velocity degree is lower, in spraying process particle residence time in air long, the metallic coating oxygen level that is obtained is higher, and is not suitable for spraying easy oxidation metal coating such as titanium.The metallic coating of the easy oxidation of preparation of successful Application such as the technology of titanium or titanium alloy have only low-voltage plasma spraying at present, and this technology of preparation hypoxemia metallic coating also is first-selected.Yet low-voltage plasma spraying need spray under vacuum chamber, and the production cost of coating is very high, and production efficiency is very low, so other novel process of exigence prepare easy oxidation or hypoxemia amount metallic coating.
Chinese patent CN02224636.3 utility model patent has been introduced a kind of low temperature supersonic flame sprayer.This device is to inject water or mass flow air near the Raoul nozzle of spray gun, to reduce flame temperature.But the combustion chamber pressure of this device is 0.75MPa, basic identical with common supersonic flame sprayer, because the pressure of flame flow velocity degree and combustion chamber has direct relation, flame flow velocity degree is suitable with common supersonic flame sprayer, therefore still can not spray easy oxidation or hypoxemia metallic coating.
Summary of the invention
The purpose of this utility model is that at above-mentioned existing problems and deficiency providing a kind of can improve flame flow velocity degree again greatly when effectively reducing flame temperature, and simple in structure, reliable new type low temperature high speed supersonic flame sprayer.The flame stream temperature of this flame spray coating device is than low 500 ℃ of common hypersonic flame spraying, and combustion chamber pressure is high more than 100%, and flame flow velocity degree improves more than 40%, can prepare easy oxidation or hypoxemia amount metal and low melting material coating.
The technical solution of the utility model is achieved in that
New type low temperature high speed supersonic flame sprayer described in the utility model, comprise spray gun, the kerosene plenum system, the oxygen plenum system, ignition system, powder feed system, water-cooling system and Controlling System, wherein said spray gun comprises the body skin of being with cooling chamber and is positioned at the intravital combustion chamber of described shell, nozzle, described kerosene plenum system, oxygen plenum system and ignition system are connected to described combustion chamber, described powder feed system and water-cooling system are connected on the described nozzle, be characterized in also being connected with on the described combustion chamber water filling or the notes nitrogen system that are used for to direct water filling in this combustion chamber or notes nitrogen, described Controlling System and described cooling system, the kerosene plenum system, the oxygen plenum system, water filling or notes nitrogen system, powder feed system connects, and each system is carried out the control of flow and pressure.
Wherein when above-mentioned water filling or when annotating nitrogen system and adopting waterflood system, this waterflood system comprises high-pressure hydraulic pump, water injection pipe, and above-mentioned combustion chamber back-end location is provided with the water-filling nozzle to this combustion chamber water filling of being used for that links to each other with described water injection pipe.When adopting the notes nitrogen system, this notes nitrogen system comprises nitrogengas cylinder, the induction pipe of being with supercharging device, and above-mentioned combustion chamber back-end location is provided with the air injection opening that is used for annotating to this combustion chamber nitrogen that links to each other with described induction pipe.
Said nozzle comprises Raoul nozzle, extended nozzle, and for making the utility model powder feeding in the process of using more even, the front end of described Raoul nozzle is provided with the left and right powder-feeding mouth that is connected with above-mentioned powder feed system.
The utility model is used for to the direct water filling in this combustion chamber or the water filling of notes nitrogen or the structure of nitrogen system owing to adopting to connect on the combustion chamber of spray gun, make the utility model can or annotate nitrogen by direct water filling in the combustion chamber in use, and being gasified behind high temperature, water or nitrogen directly expands rapidly, to reach the purpose that combustion chamber pressure is increased when reducing fuel gas temperature in the combustion chamber rapidly, combustion gas through the cooling speedup accelerates to it than the obvious high speed of common hypersonic flame spraying by nozzle, and variation along with water filling and nitrogen flow, it is different with the speed increasing degree that flame stream temperature reduces amplitude, thereby realize the effect of low-temperature and high-speed hypersonic flame spraying.The utility model can spray titanium, copper, aluminum metal and alloy coat thereof, and the oxygen level of coating is low, satisfies industry such as aerospace, electronics, electric power, iron and steel, automobile, chemical industry to its conduction, heat conduction or performance requriements such as anti-corrosion and significant.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, new type low temperature high speed supersonic flame sprayer described in the utility model, comprise spray gun, kerosene plenum system 3, oxygen plenum system 5, ignition system 4, powder feed system 6,7, water-cooling system 1 and Controlling System 8, wherein said spray gun comprises the body skin 15 of being with cooling chamber 15 and the combustion chamber 10 that is positioned at described body skin 15, nozzle, described kerosene plenum system 3, oxygen plenum system 5 and ignition system 4 are connected to described combustion chamber 10, described powder feed system 6 and water-cooling system 1 are connected on the described nozzle, for making the utility model that incendivity chamber 10 pressure are increased rapidly, also be connected with the waterflood system or the notes nitrogen system 2 that are used for to 10 direct water fillings of this combustion chamber or notes nitrogen on the described combustion chamber 10, described Controlling System 8 and described water-cooling system 1, waterflood system or notes nitrogen system 2, kerosene plenum system 3, oxygen plenum system 5, powder feed system 6 connections are also carried out the control of flow and pressure to each system.Make the utility model can or annotate nitrogen by direct water filling in combustion chamber 10 in use, water or nitrogen gasify behind high temperature and directly expand rapidly, when reducing in the combustion chamber 10 fuel gas temperature combustion chamber 10 pressure are increased rapidly, combustion gas through the cooling speedup accelerates to it than the obvious high speed of common hypersonic flame spraying by nozzle, and variation along with water filling and nitrogen flow, it is different with the speed increasing degree that flame stream temperature reduces amplitude, thereby realize the purpose of low-temperature and high-speed hypersonic flame spraying.Wherein when above-mentioned water filling or when annotating nitrogen system and adopting waterflood system, this waterflood system 2 comprises high-pressure hydraulic pump, water injection pipe, and above-mentioned combustion chamber 10 back-end locations are provided with the water-filling nozzle 17 to 10 water fillings of this combustion chamber of being used for that links to each other with described water injection pipe.When adopting the notes nitrogen system, above-mentioned notes nitrogen system 2 comprises nitrogengas cylinder, the induction pipe of being with supercharging device, and above-mentioned combustion chamber 10 back-end locations are provided with the air injection opening 17 that is used for annotating to this combustion chamber 10 nitrogen that links to each other with described induction pipe.Said nozzle comprises Raoul nozzle 11, extended nozzle 13, and above-mentioned water-cooling system 1 is connected on the above-mentioned extended nozzle 13.For making the utility model powder feeding in use more even, the front position of above-mentioned Raoul nozzle 11 is provided with the left and right powder-feeding mouth 12,16 that links to each other with above-mentioned powder feed system 6.Be respectively equipped with the water-in 9, the water outlet 14 that are connected with water-cooling system 1 on the above-mentioned body skin 15.Above-mentioned ignition system 4 is made up of transformer, lighter for ignition, spark coil, sparking plug 19 etc.Inventive concept of the present utility model is to be fuel with kerosene, high pressure oxygen is as ignition dope, under the control of Controlling System 8 with kerosene and oxygen with the combustion chamber 10 of a certain amount of flow volume delivery to spray gun, atomizing nozzle 18 sprays into combustion chamber 10 after kerosene is fully atomized, kerosene-oxygen mixture forms the combustion gas of High Temperature High Pressure through sparking plug 19 igniting afterfires, the stable back of flame stream water filling or high pressure nitrogen in combustion chamber 10, water or nitrogen gasify behind high temperature and expand rapidly, when reducing in the combustion chamber fuel gas temperature combustion chamber 10 pressure are increased rapidly, combustion gas through the cooling speedup accelerates to it than the obvious high speed of common hypersonic flame spraying by Raoul nozzle 11, variation along with water filling and nitrogen flow, it is different with the speed increasing degree that flame stream temperature reduces amplitude, thereby realize the purpose of low-temperature and high-speed hypersonic flame spraying.The flame stream temperature of this flame spray coating device is than low 500 ℃ of common hypersonic flame spraying, and combustion chamber pressure is high more than 100%, and flame flow velocity degree improves more than 40%, can prepare easy oxidation or hypoxemia amount metal and low melting material coating.In order to prevent that spray gun inwall Yin Wendu is too high and ablate, utilize water-cooling system that spray gun is cooled off.Above-mentioned water-cooling system 1 is delivered to the pump and the valve of the cooling chamber of spray gun and is formed by unit cooler, with the water coolant high pressure.Unit cooler will become water coolant with the high-temperature water that the water outlet 14 of spray gun flows back to, and pump is delivered to the cooling chamber 15 of spray gun with water coolant by water inlet 9 high pressure, and realizes the circulation cooling.The utility model flame stream temperature in use is relatively low, and flame flow velocity degree is higher, can be used for good easy oxidation of processability or hypoxemia amount metallic coating and other low melting material coatings, coating has the advantages that bonding strength is higher, porosity is very low and hardness is higher, have high cost performance and very high economic benefit, can extensively be used in conduction, heat conduction or occasion such as anti-corrosion, especially in fields such as aviation, electronics, electric power, iron and steel, chemical industry, automobiles.
Two operating mode are checked and sprayed to the working routine of low-temperature and high-speed supersonic flame sprayer described in the utility model before comprising spray.Spraying is checked: according to checking module before the spray on the supervisory control desk, press corresponding switch, carry out oil circuit inspection, gas circuit inspection and water route and check, check whether each road work is normal.Spraying: being coated with two kinds of operating method, is respectively manually with automatic, when manually controlling, by the sequential operation for water coolant, fuel feeding, oxygen supply gas, igniting, water filling or nitrogen, powder feeding, spraying.Automatically spraying is lighted a fire automatically by Controlling System, sprays after the powder feeding.Spraying when stopping by with the opposite sequential operation of spraying direction.The embodiment of the utility model one embodiment is: kerosene oil flow is set at 0.3 liter/minute; Oxygen flow is 1000 liters/minute, and the pressure that after-burner is stablized in igniting is 0.73MPa, 500 liters/minute of 0.15 liter/minute of water filling or nitrogen, and the pressure of combustion chamber rises to 1.55MPa.Because combustion chamber pressure is very high, fuel feeding and waterflood pump pressure all will surpass 2.0MPa, and oxygen pressure also requires to surpass 2.0MPa.
Claims (6)
1. new type low temperature high speed supersonic flame sprayer, comprise spray gun, kerosene plenum system (3), oxygen plenum system (5), ignition system (4), powder feed system (6), water-cooling system (1) and Controlling System (8), wherein said spray gun comprises the body skin (15) of band cooling chamber (151) and is positioned at the combustion chamber (10) of body skin (15), nozzle, described kerosene plenum system (3), oxygen plenum system (5) and ignition system (4) are connected to described combustion chamber (10), described powder feed system (6) and water-cooling system (1) are connected to the nozzle place of described body skin (15), it is characterized in that also being connected with on the described combustion chamber (10) waterflood system or the notes nitrogen system (2) that are used for to this combustion chamber (10) direct water filling or notes nitrogen, described Controlling System (8) and described water-cooling system (1), waterflood system or notes nitrogen system (2), kerosene plenum system (3), oxygen plenum system (5), powder feed system (6,7) connect and each system is carried out the control of flow and pressure.
2. new type low temperature high speed supersonic flame sprayer according to claim 1, it is characterized in that above-mentioned waterflood system (2) comprises high-pressure hydraulic pump, water injection pipe, above-mentioned combustion chamber (10) back-end location is provided with the water-filling nozzle (17) to this combustion chamber (10) water filling of being used for that links to each other with described water injection pipe.
3. new type low temperature high speed supersonic flame sprayer according to claim 1, it is characterized in that above-mentioned notes nitrogen system (2) comprises nitrogengas cylinder, the induction pipe of being with supercharging device, above-mentioned combustion chamber (10) back-end location is provided with the air injection opening (17) that is used for annotating to this combustion chamber (10) nitrogen that links to each other with described induction pipe.
4. according to claim 1 or 2 or 3 described new type low temperature high speed supersonic flame sprayers, it is characterized in that said nozzle comprises Raoul nozzle (11), extended nozzle (13), the front end of described Raoul nozzle (11) is provided with the left and right powder-feeding mouth (12,16) that is connected with above-mentioned powder feed system (6).
5. new type low temperature high speed supersonic flame sprayer according to claim 4 is characterized in that being respectively equipped with on the above-mentioned body skin (15) water-in (9), the water outlet (14) that are connected with water-cooling system (1).
6. new type low temperature high speed supersonic flame sprayer according to claim 5, it is characterized in that above-mentioned water-cooling system (1) by can be used for the high-temperature water that spray gun water outlet (14) flows back to become the unit cooler of water coolant, pump and valve that the water coolant high pressure is delivered to the cooling chamber (151) of spray gun form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202654245U CN201620186U (en) | 2009-12-23 | 2009-12-23 | Novel low-temperature high-speed supersonic flame spraying device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202654245U CN201620186U (en) | 2009-12-23 | 2009-12-23 | Novel low-temperature high-speed supersonic flame spraying device |
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| CN201620186U true CN201620186U (en) | 2010-11-03 |
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| CN2009202654245U Expired - Lifetime CN201620186U (en) | 2009-12-23 | 2009-12-23 | Novel low-temperature high-speed supersonic flame spraying device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526147A (en) * | 2013-10-21 | 2014-01-22 | 芜湖鼎恒材料技术有限公司 | No-water cut-off protection system for plasma spraying equipment |
| CN103801893A (en) * | 2013-12-31 | 2014-05-21 | 青岛前进船厂 | Method for corrosion repair and long-term protection of ship propeller |
| CN104233170A (en) * | 2014-09-11 | 2014-12-24 | 芜湖鼎瀚再制造技术有限公司 | Ultrasonic flame spraying execution system |
| CN104233176A (en) * | 2014-09-12 | 2014-12-24 | 芜湖鼎瀚再制造技术有限公司 | Supersonic flame spraying system |
| CN107955927A (en) * | 2017-12-13 | 2018-04-24 | 广东电网有限责任公司江门供电局 | A kind of corrosion resistant grounded screen metal-cermic coating anti-dropout spray equipment and spraying method |
| CN108004415A (en) * | 2017-12-08 | 2018-05-08 | 昆明冶金研究院 | A kind of electronic torch melting furnace wall easy to clean metal coating and its spraying method and device |
| CN108165923A (en) * | 2018-03-07 | 2018-06-15 | 水利部杭州机械设计研究所 | A kind of preparation process of the high enthalpy plasma gun of novel super-high velocity of sound and WC base composite coatings |
| CN108254275A (en) * | 2018-01-04 | 2018-07-06 | 湘潭大学 | Thermal barrier coating Work condition analogue and real-time monitoring device |
| CN110408921A (en) * | 2019-07-04 | 2019-11-05 | 广东省新材料研究所 | A kind of nozzle and its processing method |
| CN111549309A (en) * | 2020-05-29 | 2020-08-18 | 中国人民解放军军事科学院国防科技创新研究院 | Low-temperature high-speed flame spraying gun |
| CN112410715A (en) * | 2020-10-06 | 2021-02-26 | 湖北超卓航空科技股份有限公司 | Low-temperature supersonic flame spraying device |
| CN112424388A (en) * | 2018-08-10 | 2021-02-26 | 普莱克斯S.T.技术有限公司 | One-step method for producing a fluid-tight, fully dense coating |
| CN112676054A (en) * | 2020-12-17 | 2021-04-20 | 青岛科技大学 | Vortex guide type supersonic flame spraying spray gun device |
| CN112695267A (en) * | 2020-12-28 | 2021-04-23 | 郑州立佳热喷涂机械有限公司 | Gas ignition type supersonic speed spray gun with inner hole |
-
2009
- 2009-12-23 CN CN2009202654245U patent/CN201620186U/en not_active Expired - Lifetime
Cited By (21)
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| CN103526147B (en) * | 2013-10-21 | 2015-07-08 | 芜湖鼎恒材料技术有限公司 | No-water cut-off protection system for plasma spraying equipment |
| CN103526147A (en) * | 2013-10-21 | 2014-01-22 | 芜湖鼎恒材料技术有限公司 | No-water cut-off protection system for plasma spraying equipment |
| CN103801893A (en) * | 2013-12-31 | 2014-05-21 | 青岛前进船厂 | Method for corrosion repair and long-term protection of ship propeller |
| CN103801893B (en) * | 2013-12-31 | 2016-05-25 | 青岛前进船厂 | A kind of method for propeller for vessels Corrosion Repair and long-lasting protection |
| CN104233170A (en) * | 2014-09-11 | 2014-12-24 | 芜湖鼎瀚再制造技术有限公司 | Ultrasonic flame spraying execution system |
| CN104233170B (en) * | 2014-09-11 | 2016-08-24 | 芜湖鼎瀚再制造技术有限公司 | A kind of HVAF performs system |
| CN104233176A (en) * | 2014-09-12 | 2014-12-24 | 芜湖鼎瀚再制造技术有限公司 | Supersonic flame spraying system |
| CN108004415B (en) * | 2017-12-08 | 2019-05-17 | 昆明冶金研究院 | A kind of electron-beam smelting furnace wall easy to clean metal coating and its spraying method and device |
| CN108004415A (en) * | 2017-12-08 | 2018-05-08 | 昆明冶金研究院 | A kind of electronic torch melting furnace wall easy to clean metal coating and its spraying method and device |
| CN107955927A (en) * | 2017-12-13 | 2018-04-24 | 广东电网有限责任公司江门供电局 | A kind of corrosion resistant grounded screen metal-cermic coating anti-dropout spray equipment and spraying method |
| CN107955927B (en) * | 2017-12-13 | 2023-09-29 | 广东电网有限责任公司江门供电局 | Corrosion-resistant grounding grid metal ceramic coating anti-drop spraying device and spraying method |
| CN108254275A (en) * | 2018-01-04 | 2018-07-06 | 湘潭大学 | Thermal barrier coating Work condition analogue and real-time monitoring device |
| CN108165923A (en) * | 2018-03-07 | 2018-06-15 | 水利部杭州机械设计研究所 | A kind of preparation process of the high enthalpy plasma gun of novel super-high velocity of sound and WC base composite coatings |
| CN108165923B (en) * | 2018-03-07 | 2023-10-31 | 水利部杭州机械设计研究所 | Novel superhigh-speed high-enthalpy-value plasma spray gun and preparation process of WC-based composite coating |
| CN112424388A (en) * | 2018-08-10 | 2021-02-26 | 普莱克斯S.T.技术有限公司 | One-step method for producing a fluid-tight, fully dense coating |
| CN110408921A (en) * | 2019-07-04 | 2019-11-05 | 广东省新材料研究所 | A kind of nozzle and its processing method |
| CN110408921B (en) * | 2019-07-04 | 2022-02-22 | 广东省新材料研究所 | Nozzle and processing method thereof |
| CN111549309A (en) * | 2020-05-29 | 2020-08-18 | 中国人民解放军军事科学院国防科技创新研究院 | Low-temperature high-speed flame spraying gun |
| CN112410715A (en) * | 2020-10-06 | 2021-02-26 | 湖北超卓航空科技股份有限公司 | Low-temperature supersonic flame spraying device |
| CN112676054A (en) * | 2020-12-17 | 2021-04-20 | 青岛科技大学 | Vortex guide type supersonic flame spraying spray gun device |
| CN112695267A (en) * | 2020-12-28 | 2021-04-23 | 郑州立佳热喷涂机械有限公司 | Gas ignition type supersonic speed spray gun with inner hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180222 Address after: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No. Co-patentee after: GTV Verschleiss-Schutz (Beijing) Co., Ltd. Patentee after: NEW MATERIALS RESEARCH INSTITUTE OF GUANGDONG PROVINCE Address before: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No. Co-patentee before: GTV Verschleiss-Schutz (Beijing) Co., Ltd. Patentee before: Guangzhou Research Institute of Non-ferrous Metals |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |
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| CX01 | Expiry of patent term |