CN208620348U - A kind of multichannel changeable flow blowpipe - Google Patents
A kind of multichannel changeable flow blowpipe Download PDFInfo
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- CN208620348U CN208620348U CN201820955799.3U CN201820955799U CN208620348U CN 208620348 U CN208620348 U CN 208620348U CN 201820955799 U CN201820955799 U CN 201820955799U CN 208620348 U CN208620348 U CN 208620348U
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- blowpipe
- changeable flow
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Abstract
The utility model provides a kind of multichannel changeable flow blowpipe, it is characterised in that it includes multiple branch's appendixs, the pipe end of branch's appendix is set in flame cover, guide ring is equipped between flame cover and branch's appendix, guide ring is equipped with the hole for allowing ambient atmosphere to pass through.A kind of revealed multichannel changeable flow blowpipe of the utility model, the infiltration ratio in each branch branch appendix between the flow velocity and fuel gas and atmospheric air of fuel gas, can artificially be adjusted (control).Compared with common blowpipe, a kind of multichannel changeable flow blowpipe has the advantages of burning is abundant, and flame export temperature is higher, and heat-radiating properties are more preferable, and product pipe fitting (header) surface is without carbon phenomenon is tied.
Description
Technical field
The utility model relates to a kind of multichannel changeable flow blowpipes.
Background technique
Currently, in the prior art, pipe fitting (header) is before being subjected to, it is common to use blowpipe carries out preheating behaviour
Make.The blowpipe design structure that workshop uses is single, is formed by connecting, is adopted by combustible gas appendix (rubber tube) and one section of straight steel pipe
Flame heating is carried out to pipe fitting (header) with this kind of method, there are the insufficient situations of flame combustion, lead to pipe fitting (header) surface
Tie carbon phenomenon.In addition, using this kind of heating means, combustible gas consumption is high, causes cost of goods manufactured to improve, is unfavorable for workshop
Large scale investment production.
Summary of the invention
The purpose of the utility model is to provide the flow velocitys that one kind can adjust fuel gas in each branch branch appendix, and
The multichannel changeable flow blowpipe of infiltration ratio between fuel gas and atmospheric air.
In order to achieve the above object, the utility model provides a kind of multichannel changeable flow blowpipe, which is characterized in that
Including multiple branch's appendixs, the pipe end of branch's appendix is set in flame cover, is equipped with and is led between flame cover and branch's appendix
Compression ring, guide ring are equipped with the hole for allowing ambient atmosphere to pass through.
Further, when fuel gas is flowed out from branch's appendix, negative pressure is formed at the hole, ambient atmosphere is passed through
The hole is inhaled into flame cover and mixes with fuel gas.
Further, the guide ring is fixedly connected with branch appendix.
Further, position (i.e. air pocket depth) of the guide ring in flame cover can be adjusted.
Further, by adjusting position of the guide ring in flame cover, to adjust between fuel gas and atmospheric air
Infiltration ratio.
Further, the allocated tracheae of multiple branch's appendixs connects main appendix.
Further, the main appendix is equipped with throttle valve and gas gauge, and gas gauge is mounted on section
One side position of valve is flowed, the fuel gas flows into throttle valve from main appendix, distribution tracheae entered back into, according to gas gauge number
Value, by adjusting throttle valve, control flows into the flow velocity and pressure of fuel gas in distribution tracheae.
Further, branch's appendix is equipped with two-chip type ball valve, can individually be controlled by two-chip type ball valve
The flow velocity and pressure of fuel gas in each branch's appendix.
Further, the outer diameter of branch's appendix is less than the internal diameter of flame cover.
Further, the design of the center of branch's appendix and flame cover is on same axial line.
Further, the guide ring is equipped with multiple circular holes, is uniformly distributed design method using annular.
Further, described main appendix one end is set as zigzag fashion, convenient for being connected and fixed with appendix (rubber tube).
The utility model comparison prior art has the advantages that:
A kind of revealed multichannel changeable flow blowpipe of the utility model, fuel gas in each branch branch appendix
Infiltration ratio between flow velocity and fuel gas and atmospheric air, can artificially be adjusted (control).Compared with common
Blowpipe, a kind of multichannel changeable flow blowpipe, having burning, sufficiently flame export temperature is higher, and heat-radiating properties are more preferable,
The advantages of product pipe fitting (header) surface is without knot carbon phenomenon.
A kind of revealed multichannel changeable flow blowpipe of the utility model, can be outside automatic absorption in design structure
Boundary's atmosphere (air), realizes the purpose of mixed firinor fuel burning, in addition to there is notable feature in design structure, a kind of multichannel variable flow
Blowpipe is measured, after being tried out through workshop, the consumption of fuel gas can be substantially reduced, the manufacturing cost of product is reduced, have
Very high economic benefit, workshop large scale investment easy to produce use.
Detailed description of the invention
A kind of Fig. 1 are as follows: multichannel changeable flow blowpipe main view
A kind of Fig. 2 are as follows: multichannel changeable flow blowpipe top view
Fig. 3~Fig. 6 is partial sectional view at X in Fig. 2.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
Embodiment
As shown in Figure 1, a kind of multichannel changeable flow blowpipe by main appendix 1, distribution tracheae 2, branch's appendix 3,
Flame cover 4, throttle valve 5, two-chip type ball valve 6, gas gauge 7 and guide ring 8 are constituted.In the present embodiment, branch's appendix 3,
Flame cover 4, two-chip type ball valve 6,8 quantity of guide ring are set as 3.The main appendix 1, distribution tracheae 2, branch's appendix
3, flame cover 4 is set as tubulose.Distribution 2 both ends of tracheae are set as enclosed construction.Described 1 one end of main appendix is set as zigzag fashion,
Convenient for being connected and fixed with appendix rubber tube.The allocated tracheae 2 of branch's appendix 3 connects main appendix 1, main appendix 1, branch
Appendix 3 is mounted on the circumferential end positions of distribution tracheae 2, main appendix 1 and distribution tracheae 2 and branch's appendix 3 and distribution
It is welded to connect between tracheae 2 using sealing welding.The pipe end of branch's appendix 3 is set in flame cover 4, branch's appendix 3 and flame
The center of cover 4 is designed on same axial line, and guide ring 8 is equipped between flame cover 4 and branch's appendix 3, and guide ring 8 is equipped with
The circular hole for allowing ambient atmosphere to pass through.When fuel gas is flowed out from branch's appendix 3, negative pressure is formed at the hole, it is extraneous
Atmosphere is inhaled into flame cover by the hole and mixes with fuel gas.
The main appendix 1 is equipped with throttle valve 5.It is attached between main appendix 1 and throttle valve 5 using screw thread.
The main appendix 1 is equipped with gas gauge 7, and gas gauge 7 is mounted on 5 one side position of throttle valve.The combustible gas
Body flows into throttle valve 5 from main appendix 1, enters back into distribution tracheae 2.According to 7 numerical value of gas gauge, by adjusting throttle valve 5,
Control flows into the flow velocity and pressure of fuel gas in distribution tracheae 2.
Branch's appendix 3 is equipped with two-chip type ball valve 6.Spiral shell is used between branch's appendix 3 and two-chip type ball valve 6
Line is attached.As shown in figure 3, the two-chip type ball valve 6 connected in branch's appendix 3, by control two-chip type ball valve 6
Spanner rotates angle a, and a angle is set as: 0 °~90 °.Wherein 0 ° of correspondence completely closes two-chip type ball valve 6, wherein 90 ° of correspondences are complete
Open two-chip type ball valve 6.Therefore, by two-chip type ball valve 6 can be realized control branch's appendix 3 in fuel gas flow velocity and
Pressure.The flow velocity and pressure of fuel gas in each branch's appendix 3 can be individually controlled by two-chip type ball valve 6.
The correspondence of guide ring 8 is mounted on branch's appendix 3, and the two is using welded connecting.The correspondence of flame cover 4 is mounted on air guide
On ring 8, it is connected through a screw thread therebetween.Flame cover 4 is equipped with internal screw thread, and guide ring 8 is equipped with external screw thread.In guide ring 8
External screw thread connect with the screw-internal thread fit in flame cover 4.Position of the guide ring 8 in flame cover 4 can be adjusted.It is logical
Position of the guide ring 8 in flame cover 4 is overregulated, to adjust the infiltration ratio between fuel gas and atmospheric air.
The fuel gas is shunted from distribution tracheae 2, separately flows into each branch's appendix 3 and two-chip type ball valve 6,
Finally flowed out from 3 other end of branch's appendix.3 tube outer diameter of branch's appendix is set as Φ 1, in 4 pipe of flame cover
Diameter is set as Φ 2,1 < Φ 2 of Φ.There are gap between the flame cover 4 and branch's appendix 3, pass through guide ring 8 between two parts
It is attached.As shown in fig. 6, the guide ring 8 is set as annular shape, center is equipped with 1 circular hole, sets altogether on guide ring 8
There are 10 circular holes, design method is uniformly distributed using annular.Open air pocket 9 is capable of forming in the circle hole location of guide ring 8.
The fuel gas is flowed out from 3 pipe end direction of branch's appendix, and according to gas flow characteristic, the fuel gas of outflow is in air pocket 9
Gas negative pressure phenomenon can be generated at position, the effect of sucking ambient atmosphere air is realized, so that in the intracavitary portion's shape of 4 type of flame cover
It is mixed with air at the mixed gas that one kind can burn by fuel gas, finally in a manner of a kind of burning mixture
It burns, realizes the purpose of full combustion fuel gas.
As shown in Figure 4 and Figure 5, the air pocket 9 formed between the flame cover 4 and branch's appendix 3, passes through girandole cover
4, it can be realized the control to air pocket depth.Explanation, L1 < L2 are compared with air pocket depth L1, L2.When identical flow velocity can
Combustion gas body is flowed out from 3 pipe end direction of branch's appendix, since air pocket depth compared to air pocket depth in Fig. 5 wants " shallow " in Fig. 4, is then inhaled
The ambient atmosphere entered is more.And air pocket depth compared to air pocket depth in Fig. 4 wants " depth " in Fig. 5, then the ambient atmosphere sucked is less.
Therefore, the infiltration mixed proportion of ambient atmosphere is higher than Fig. 5 in the mixed gas in the intracavitary portion of 4 type of flame cover, Fig. 4.That is: by changing
The method for becoming air pocket depth between flame cover 4 and branch's appendix 3, may be implemented fuel gas from atmospheric air with different infiltrations
The purpose of ratio burning.
Steps are as follows for the use of the multichannel changeable flow blowpipe:
One, product pipe (header) flame combustion position is determined.
Two, burnt gas switch is opened, realizes that control flows into distribution by adjusting throttle valve 5 according to 7 numerical value of gas gauge
The flow velocity and pressure of fuel gas in tracheae 2.
Three, it lights a fire at 4 position of flame cover in self-priming changeable flow blowpipe, according to practical demand for heat, adjusts each
Infiltration ratio in branch branch appendix 3 between the flow velocity and fuel gas and atmospheric air of fuel gas, so that flame fires
Burning state reaches requirement.
Four, flame heating is carried out to product pipe (header) using self-priming changeable flow blowpipe.
Five, after product pipe (header) is heated to standard time and temperature, self-priming changeable flow blowpipe is unloaded, is put out
Fire extinguishing flame, closes burnt gas switch.
Claims (10)
1. a kind of multichannel changeable flow blowpipe, which is characterized in that including multiple branch's appendixs (3), branch's appendix (3)
Pipe end be set in flame cover (4), equipped with guide ring (8) between flame cover (4) and branch's appendix (3), guide ring is set on (8)
There is the hole for allowing ambient atmosphere to pass through.
2. multichannel changeable flow blowpipe as described in claim 1, which is characterized in that when fuel gas is from branch's appendix
(3) when flowing out, negative pressure is formed at the hole, ambient atmosphere is inhaled into flame cover mixed with fuel gas by the hole
It closes.
3. multichannel changeable flow blowpipe as described in claim 1, which is characterized in that the guide ring (8) and branch
Appendix (3) is fixedly connected；Position of the guide ring (8) in flame cover (4) can be adjusted.
4. multichannel changeable flow blowpipe as described in claim 1, which is characterized in that sprayed by adjusting guide ring (8)
Position in fire cover (4), to adjust the infiltration ratio between fuel gas and atmosphere.
5. multichannel changeable flow blowpipe as claimed in claim 2, which is characterized in that multiple branch's appendixs
(3) the allocated tracheae (2) connects main appendix (1).
6. multichannel changeable flow blowpipe as claimed in claim 5, which is characterized in that set on the main appendix (1)
There are throttle valve (5) and gas gauge (7), gas gauge (7) is mounted on (5) one side position of throttle valve, the fuel gas
Throttle valve (5) are flowed into from main appendix (1), enter back into distribution tracheae (2), according to gas gauge (7) numerical value, are saved by adjusting
It flows valve (5), control flows into the flow velocity and pressure of fuel gas in distribution tracheae (2).
7. multichannel changeable flow blowpipe as described in claim 1, which is characterized in that on branch's appendix (3)
Equipped with two-chip type ball valve (6), fuel gas in each branch's appendix (3) can individually be controlled by two-chip type ball valve (6)
Flow velocity and pressure.
8. multichannel changeable flow blowpipe as described in claim 1, which is characterized in that branch's appendix (3)
Outer diameter is less than the internal diameter of flame cover (4)；It designs in same axial line at the center of branch's appendix (3) and flame cover (4)
On.
9. multichannel changeable flow blowpipe as described in claim 1, which is characterized in that the guide ring (8) is equipped with
Multiple circular holes are uniformly distributed design method using annular.
10. multichannel changeable flow blowpipe as claimed in claim 5, which is characterized in that described main appendix (1) one end
It is set as zigzag fashion, convenient for being connected and fixed with appendix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955799.3U CN208620348U (en) | 2018-06-20 | 2018-06-20 | A kind of multichannel changeable flow blowpipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955799.3U CN208620348U (en) | 2018-06-20 | 2018-06-20 | A kind of multichannel changeable flow blowpipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208620348U true CN208620348U (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820955799.3U Active CN208620348U (en) | 2018-06-20 | 2018-06-20 | A kind of multichannel changeable flow blowpipe |
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| CN (1) | CN208620348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042866A (en) * | 2021-04-29 | 2021-06-29 | 西安理工大学 | Device and method for preheating before electric arc welding |
-
2018
- 2018-06-20 CN CN201820955799.3U patent/CN208620348U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042866A (en) * | 2021-04-29 | 2021-06-29 | 西安理工大学 | Device and method for preheating before electric arc welding |
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