CN201964407U - Spray nozzle of burning spray gun - Google Patents
Spray nozzle of burning spray gun Download PDFInfo
- Publication number
- CN201964407U CN201964407U CN2010202753756U CN201020275375U CN201964407U CN 201964407 U CN201964407 U CN 201964407U CN 2010202753756 U CN2010202753756 U CN 2010202753756U CN 201020275375 U CN201020275375 U CN 201020275375U CN 201964407 U CN201964407 U CN 201964407U
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- CN
- China
- Prior art keywords
- fuel
- groove
- pipe
- outer tube
- shower nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Nozzles For Spraying Of Liquid Fuel (AREA)
- Spray-Type Burners (AREA)
Abstract
The utility model discloses a spray nozzle of a burning spray gun, which comprises a central pipe and an outer casing that are concentrically sheathed with each other from inside to outside, wherein the outer casing is divided into a conical spraying section, a right cylindrical transition section and an arc expansion section from bottom to top, the central pipe is a compressed air delivery pipe, the outer casing is a fuel oil delivery pipe, the outer casing is internally provided with an oil inlet pipe, an oil quenching tank, a direct flow pipe, an oil heating tank, a backflow pipe and a fuel oil steam tank that are sequentially communicated with one another, the oil heating tank is annular and is positioned at the top of the right cylindrical transition section, the fuel oil steam tank is annular, and is positioned at the bottom of the right cylindrical transition section and provided with spray nozzles, and the spray nozzles are evenly and obliquely arranged along the circumference of the fuel oil steam tank. The spray nozzle is low in cost, good in spraying effect, and convenient and safe to use.
Description
Technical field
The utility model relates to a kind of shower nozzle of burning spray gun, but this shower nozzle preheating, vaporization normal temperature liquid fuel.
Background technology
In the work of steam turbine rotor bushing hot jacket, originally toasting the spray gun of impeller, when using kerosene to do fuel, is to utilize compressed air to dispel kerosene, formation atomizing after-combustion.Because the kerosene burning is insufficient, flame is also stable inadequately, after the baking, can make brand-new polished bright impeller stay large stretch of blackspot and lathe work etc., has a strong impact on image product.If use propane, liquid oxygen fuel,, can increase considerably production cost though can avoid these shortcomings.
Summary of the invention
Technical problem to be solved in the utility model is that the kerosene burning is insufficient in the existing spray gun, and flame instability is so that influence the shortcoming of product quality, and a kind of cost, burning spray gun shower nozzle easy to use, safe saved is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of shower nozzle of burning spray gun, the central tube and the outer tube that comprise concentric suit from the inside to surface, outer tube is divided into conic jet section, straight cylinder changeover portion and circular arc expansion segment from top to bottom, central tube is a blowpipe, outer tube is a fuel feed pipe, is provided with the oil inlet pipe, cold oil groove, following current pipe, deep fat groove, return duct and the fuel-steam groove that are communicated with in turn in the described outer tube; Conic jet section bottom is provided with fuel feed hole, and fuel feed hole is connected with the cold oil groove by oil inlet pipe; Described cold oil groove is for annular and be positioned at straight cylinder changeover portion bottom; Described following current pipe and return duct along straight cylinder changeover portion circumference evenly, be intervally arranged, described following current pipe and return duct number equate, and at least one; Described deep fat groove is for annular and be positioned at straight cylinder changeover portion top; Described fuel-steam groove is for annular and be positioned at straight cylinder changeover portion bottom, and the fuel-steam groove is provided with nozzle, described nozzle along fuel-steam groove circumference evenly, be obliquely installed.
Following current pipe and return duct along straight cylinder changeover portion circumference evenly, be intervally arranged, the distance of the fuel heating that not only helps extending guarantees that fuel oil is able to abundant gasification, also makes the whole design compact conformation, easy to process of arranging; The setting of cold oil groove, deep fat groove and three cannelures of fuel-steam groove, guaranteed when indivedual following current pipes or return duct generation stopping state, oil in the choked pipe can flow into other following current pipe or return ducts by three cannelures, forms complete following current, return-flow system.During use, kerosene flows into the cold oil groove by oil inlet pipe, arrives the deep fat groove after the preheating of following current pipe, and then is heated into kerosene steam through return duct, is tilted to spray by the nozzle on the fuel-steam groove at last, forms spiral kerosene steam flow; The compressed air that feeds in the central tube burns at the circular arc expansion segment with after spiral kerosene vapor stream mixes on every side.Because mix fully, it is very complete to burn, flame is also very stable, just can not stay blackspot, ash stain and the inhomogeneous colored speckle that causes etc. that is heated during the baking workpiece; In addition, kerosene the time has been taken away heat by preheating of shower nozzle burning place wall and vaporization, can also reach the cooling wall effect, keeps the stable and continuation of whole combustion system, makes it to have longer service life than common shower nozzle.
Enough oxygen support burnings can be arranged when burning for further assurance, also be provided with the air supply window of at least one on the conic jet section of outer tube, described air supply window is a through hole, in order to be communicated with central tube and shower nozzle outside.When the compressed air that ejects in the central tube when the front portion forms jet, can drive the outer a large amount of air of tonifying Qi window and enter the shower nozzle middle front part, reach the purpose that enough oxygen and combustion gas mixing are provided.
Along the circumferential direction also be provided with the noise reduction breach of at least one on the circular arc expansion segment, described noise reduction breach is the U font.
The utility model advantage is: adopt the mode with liquid fuel high temperature heating vaporization after-combustion, replace utilizing in the prior art compressed air to dispel the mode of kerosene, formation atomizing after-combustion, utilize kerosene to make the combustion efficiency that fuel just can reach propane, liquid oxygen fuel, save cost, jeting effect is good, in addition, in transportation and storing, also than using propane, more convenient, the safety of liquid oxygen.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the sectional view at the utility model Figure 1A-A place;
Fig. 3 is the sectional view at the utility model Fig. 2 C-C place;
Fig. 4 is the sectional view at the utility model Figure 1B-B place.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1 to 4, shower nozzle comprises the central tube 1 and the outer tube 2 of concentric suit from the inside to surface, and both tighten together by self-locking thread; Outer tube 2 is divided into conic jet section 3, straight cylinder changeover portion 4 and circular arc expansion segment 5 from top to bottom, central tube 1 is a blowpipe, outer tube 2 is a fuel feed pipe, be provided with 7, the 18 following current pipes 8 of oil inlet pipe 6, cold oil groove, 9,18 return ducts 10 of deep fat groove and the fuel-steam groove 11 that connect in turn in the described outer tube 2, fuel-steam groove 11 is provided with 36 nozzles of evenly arranging 12; Conic jet section 3 bottoms are provided with fuel feed hole 13, and fuel feed hole 13 is connected with cold oil groove 7 by oil inlet pipe 6; Described cold oil groove 7 is for annular and be positioned at straight cylinder changeover portion 4 bottoms; Described following current pipe 8 and return duct 10 are along 4 circle spacings of straight cylinder changeover portion, evenly distribution, and described deep fat groove 9 is for annular and be positioned at straight cylinder changeover portion 4 tops; Also be provided with a plurality of air supply windows 14 on the conic jet section 3 of outer tube 2, air supply window 14 is communicated with central tube 1 and shower nozzle outside; Along the circumferential direction also be provided with the noise reduction breach 15 of a plurality of U fonts on the circular arc expansion segment 5.
During shower nozzle work: the kerosene from spray boom enters oil inlet pipe 6 by fuel feed hole 16, flow into cold oil groove 7 along oil inlet pipe 6 then, after 8 preheatings of following current pipe, arrive deep fat groove 9, and then be heated into kerosene steam through return duct 10, after steam flows into fuel-steam groove 11, tilt to spray by nozzle 12, form spiral kerosene steam flow; The compressed air that central tube 1 feeds penetrates the formation jet forward, drives tonifying Qi window 14 outer a large amount of air and enters straight cylinder changeover portion 4, mixes with spiral kerosene vapor stream on every side then, burns at circular arc expansion segment 5.Because mix fully, it is very complete to burn, flame is also very stable, just can not stay blackspot, ash stain and the inhomogeneous colored speckle that causes etc. that is heated during the baking workpiece.In addition, kerosene the time has been taken away heat by preheating of shower nozzle burning place wall and vaporization, reaches the cooling wall effect, keeps the stable and continuation of whole combustion system, makes it to have longer service life than common shower nozzle.
Claims (4)
1. the shower nozzle of a burning spray gun comprises the central tube and the outer tube of concentric suit from the inside to surface, and outer tube is divided into conic jet section, straight cylinder changeover portion and circular arc expansion segment from top to bottom, it is characterized in that:
Central tube is a blowpipe, and outer tube is a fuel feed pipe, is provided with the oil inlet pipe, cold oil groove, following current pipe, deep fat groove, return duct and the fuel-steam groove that are communicated with in turn in the described outer tube;
Conic jet section bottom is provided with fuel feed hole, and fuel feed hole is connected with the cold oil groove by oil inlet pipe;
Described cold oil groove is for annular and be positioned at straight cylinder changeover portion bottom;
Described following current pipe and return duct along straight cylinder changeover portion circumference evenly, be intervally arranged, described following current pipe and return duct number equate, and at least one;
Described deep fat groove is for annular and be positioned at straight cylinder changeover portion top;
Described fuel-steam groove is for annular and be positioned at straight cylinder changeover portion bottom, and the fuel-steam groove is provided with nozzle, described nozzle along fuel-steam groove circumference evenly, be obliquely installed.
2. the shower nozzle of burning spray gun according to claim 1, it is characterized in that: also be provided with the air supply window of at least one on the conic jet section of outer tube, described air supply window is a through hole, in order to be communicated with central tube and shower nozzle outside.
3. the shower nozzle of burning spray gun according to claim 1 and 2, it is characterized in that: along the circumferential direction also be provided with the noise reduction breach of at least one on the circular arc expansion segment, described noise reduction breach is the U font.
4. the shower nozzle of burning spray gun according to claim 1 and 2 is characterized in that: connect by self-locking thread between central tube and the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202753756U CN201964407U (en) | 2010-07-29 | 2010-07-29 | Spray nozzle of burning spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202753756U CN201964407U (en) | 2010-07-29 | 2010-07-29 | Spray nozzle of burning spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964407U true CN201964407U (en) | 2011-09-07 |
Family
ID=44526948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202753756U Expired - Lifetime CN201964407U (en) | 2010-07-29 | 2010-07-29 | Spray nozzle of burning spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201964407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175223A (en) * | 2013-03-19 | 2013-06-26 | 哈尔滨工程大学 | Gas circuit axial grading type dual-fuel nozzle |
| CN107159654A (en) * | 2017-07-11 | 2017-09-15 | 际高贝卡科技有限公司 | It is a kind of to be used for the purging system and its cleaning method of indoor ground airduct |
-
2010
- 2010-07-29 CN CN2010202753756U patent/CN201964407U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175223A (en) * | 2013-03-19 | 2013-06-26 | 哈尔滨工程大学 | Gas circuit axial grading type dual-fuel nozzle |
| CN107159654A (en) * | 2017-07-11 | 2017-09-15 | 际高贝卡科技有限公司 | It is a kind of to be used for the purging system and its cleaning method of indoor ground airduct |
| CN107159654B (en) * | 2017-07-11 | 2022-08-30 | 际高科技有限公司 | Cleaning system and cleaning method for indoor air pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |