CN212252609U

CN212252609U - Flame-throwing head of liquefied gas flame-throwing gun

Info

Publication number: CN212252609U
Application number: CN202020929603.0U
Authority: CN
Inventors: 金巧旦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-12-29
Anticipated expiration: 2030-05-27

Abstract

The utility model belongs to the technical field of the flame gun, refer in particular to a flame gun's flame projecting head of liquefied gas flame gun, including casing and the liquefied gas access seat of setting on the casing top, the bottom of casing is equipped with flame projecting, the combustion chamber that the inner chamber is linked together with the flame projecting, be provided with the gas transmission hole that is used for inputing the liquefied gas on the liquefied gas access seat, be equipped with more than one through-hole one that is used for letting in the air that is linked together with the combustion chamber on the casing, the inside mixing chamber, the bottom that are equipped with and are linked together with the gas transmission hole of liquefied gas access seat are equipped with the honeycomb duct that feeds through mixing chamber and combustion chamber, the liquefied gas still is equipped with the through-hole two that is used for letting in the air that more. The utility model discloses the flame projecting head of liquefied gas flame gun that firepower is violent, the power consumption is little.

Description

Flame-throwing head of liquefied gas flame-throwing gun

The technical field is as follows:

the utility model belongs to the technical field of flame guns, in particular to a flame projecting head of a liquefied gas flame projecting gun.

Background art:

the liquefied gas flame gun is a heating and welding tool using liquefied gas as fuel, and its working principle is that the gas is pressure-regulated and converted to be sprayed out of gun mouth, and the gas is contacted with air at flame-spraying head and ignited to form high-temp. cylindrical flame to implement heating and welding work.

Chinese utility model patent CN203099826U discloses a flame projecting head of liquefied gas flame projecting gun, including the casing, the casing bottom is the flame projecting mouth, and the casing inner chamber is the combustion chamber, and liquefied gas access seat is installed on the top, is provided with the gas transmission hole on the liquefied gas access seat, liquefied gas access seat and casing top junction be provided with the high pressure and let in the mixing chamber that forms the low-pressure area behind the liquefied gas, the casing top be provided with at least one with the mixing chamber intercommunication, be used for the through-hole of air intake, the combustion chamber in be provided with the honeycomb duct that one end connects the mixing chamber.

The air of above-mentioned flame projecting head can only get into the mixing chamber through the through-hole that the casing top set up and fuse with the liquefied gas, and the air admission volume is less, leads to not having sufficient air and liquefied gas to fuse, and easy oxygen deficiency, and then leads to the liquefied gas burning abundant inadequately, and the firepower is weak, and the power consumption is great simultaneously.

The invention content is as follows:

the utility model aims at providing a flame projecting head of a liquefied gas flame projecting gun with strong firepower and small energy consumption.

The utility model discloses a realize like this:

the utility model provides a flame projecting head of liquefied gas flame gun, includes the casing and sets up the liquefied gas access seat on the casing top, the bottom of casing is equipped with flame projecting mouth, inner chamber for the combustion chamber that is linked together with the flame projecting mouth, be provided with the gas transmission hole that is used for inputing the liquefied gas on the liquefied gas access seat, be equipped with more than one through-hole one that is used for letting in the air that is linked together with the combustion chamber on the casing, the liquefied gas access seat is inside to be equipped with mixing chamber, the honeycomb duct that the bottom is equipped with intercommunication mixing chamber and combustion chamber that are linked together with the gas transmission hole, the liquefied gas access seat is last still to be equipped with more than one through-hole two that is used for letting in the.

In the flame-throwing head of the liquefied gas flame gun, the first through hole is obliquely communicated with the combustion chamber.

In the flame-throwing head of the liquefied gas flame-throwing gun, an included angle alpha between the first through hole and the vertical direction is 26-30 degrees.

In the flame-throwing head of the liquefied gas flame-throwing gun, the shell comprises a hollow cone and a first hollow cylinder, the diameter of the hollow cone is small at the top, the diameter of the hollow cone is large at the bottom, the liquefied gas access seat is installed at the top end of the hollow cone, the included angle beta between the conical surface of the hollow cone and the horizontal direction is 26-30 degrees, and the first through hole is formed in the conical surface of the hollow cone and is perpendicular to the conical surface.

In the flame-throwing head of the liquefied gas flame-throwing gun, a second hollow cylinder extends from the bottom end of the hollow cone, and the second hollow cylinder is fixedly connected with the first hollow cylinder through welding.

In the flame-throwing head of the liquefied gas flame-throwing gun, the second through hole is formed in the side wall of the liquefied gas access seat and is obliquely communicated with the mixing chamber, and the angle gamma between the second through hole and the vertical direction is 45 degrees.

In the flame-throwing head of the liquefied gas flame-throwing gun, the liquefied gas access seat and the flow guide pipe are of an integrated structure.

In the flame projecting head of a kind of foretell liquefied gas flame projecting rifle, liquefied gas access seat sets up on the surface of casing top, the honeycomb duct passes casing top end face and sets up inside the combustion chamber, honeycomb duct external screw thread connection has the nut that is used for fixed honeycomb duct.

In the flame projecting head of the liquefied gas flame projecting gun, a gasket is arranged between the nut and the inner surface of the top end of the shell.

Compared with the prior art, the utility model outstanding advantage is:

1. the utility model discloses the air gets into the mixing chamber through-hole two and mixes with the liquefied gas of inputing from the gas transmission hole, and the mixed liquid gets into the combustion chamber through the honeycomb duct, mixes with the air that gets into from through-hole one again, and liquefied gas and air are through twice mixing of mixing chamber and combustion chamber, make the liquefied gas fully burn, increase the heat degree of firepower, and the firepower is violent, and the power consumption is little simultaneously;

2. the utility model discloses a through-hole slope communicates in the combustion chamber, makes the air access to the export of honeycomb duct, and the air can be more abundant mix with mixed liquid.

Description of the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a cross-sectional view of the housing of the present invention.

Reference numerals: 1. a housing; 1a, a hollow cone; 1b, a first hollow cylinder; 1c, a hollow cylinder II; 2. a flame port; 3. a combustion chamber; 4. a first through hole; 5. a liquefied gas access seat; 6. a gas transmission hole; 7. a mixing chamber; 8. a flow guide pipe; 9. a second through hole; 10. a nut; 11. and (7) a gasket.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:

the utility model provides a flame projecting head of liquefied gas flame gun, includes casing 1 and sets up the liquefied gas access seat 5 on 1 top of casing, the bottom of casing 1 is equipped with flame projecting 2, the inner chamber is for the combustion chamber 3 that is linked together with flame projecting 2, be provided with the gas transmission hole 6 that is used for inputing the liquefied gas on the liquefied gas access seat 5, be equipped with more than one through-hole 4 that is used for letting in the air that is linked together with combustion chamber 3 on the casing 1, the liquefied gas access seat 5 is inside to be equipped with mixing chamber 7, the bottom that is linked together with gas transmission hole 6 is equipped with the honeycomb duct 8 that feeds through mixing chamber 7 and combustion chamber 3, the liquefied gas still is equipped with more than one through-hole two 9 that are used for letting in the air that are linked together with mixing chamber 7 on the.

The utility model discloses a theory of operation: when the gas mixing device works, air enters the mixing chamber 7 through the second through hole 9 to be mixed with liquefied gas input from the gas transmission hole 6, the mixed liquid enters the combustion chamber 3 through the inner side of the flow guide pipe 8, meanwhile, the other part of air enters the combustion chamber 3 positioned on the outer side of the flow guide pipe 8 through the first through hole 4, the mixed liquid and the other part of air are mixed again in the combustion chamber 3, the liquefied gas is ignited, and the gas mixing device starts to work. The liquefied gas and air are mixed twice in the mixing chamber and the combustion chamber, so that the liquefied gas is fully combusted, the heat of firepower is increased, the firepower is strong, and the energy consumption is low.

In the present embodiment, 7 through holes 4 are provided, and 6 through holes 9 are provided.

In order to lead the air to the outlet of the draft tube 8, the through hole I4 is obliquely communicated with the combustion chamber 3, so that the air can be more fully mixed with the mixed liquid.

Preferably, the angle alpha between the first through hole 4 and the vertical direction is 26-30 degrees.

As shown in fig. 3, the structure of the housing 1: the shell 1 comprises a hollow cone 1a and a hollow cylinder 1b, the diameter of the hollow cone 1a is small at the top, a liquefied gas access seat 5 is installed at the top end of the hollow cone 1a, the included angle beta between the conical surface of the hollow cone 1a and the horizontal direction is 26-30 degrees, and the through hole I4 is formed in the conical surface of the hollow cone 1a and is perpendicular to the conical surface. In this embodiment, an included angle β between the conical surface of the hollow cone 1a and the horizontal direction is 28 °, the first through hole 4 is disposed on the conical surface of the hollow cone 1a and perpendicular to the conical surface, and an included angle α between the first through hole 4 and the vertical direction is 28 °.

The connection mode of the hollow cone 1a and the hollow cylinder 1b is as follows: the bottom end of the hollow cone 1a extends to form a hollow cylinder II 1c, and the hollow cylinder II 1c is fixedly connected with the hollow cylinder I1 b through welding.

In order to lead more air to the mixing chamber 7, the second through hole 9 is formed in the side wall of the liquefied gas access seat 5 and is obliquely communicated with the mixing chamber 7, the angle gamma between the second through hole 9 and the vertical direction is 45 degrees, and the air can smoothly flow into the mixing chamber 7 directly without clamping stagnation.

Preferably, the liquefied gas inlet 5 and the flow guide pipe 8 are of an integrated structure.

As shown in fig. 2, the connection between the liquefied gas inlet 5 and the flow guide pipe 8 and the casing 1 is as follows: the liquefied gas access seat 5 is arranged on the outer surface of the top end of the shell 1, the honeycomb duct 8 penetrates through the end face of the top end of the shell 1 and is arranged inside the combustion chamber 3, and the honeycomb duct 8 is in threaded connection with a nut 10 for fixing the honeycomb duct 8.

For a more secure connection, a washer 11 is provided between the nut 10 and the inner surface of the top end of the housing 1.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a flame projecting head of liquefied gas flame gun, includes casing (1) and sets up liquefied gas access seat (5) on casing (1) top, the bottom of casing (1) is equipped with flame projecting mouth (2), combustion chamber (3) that the inner chamber is linked together with flame projecting mouth (2), be provided with gas transmission hole (6) that are used for inputing the liquefied gas on liquefied gas access seat (5), its characterized in that: be equipped with more than one through-hole one (4) that are used for letting in the air that are linked together with combustion chamber (3) on casing (1), liquefied gas access seat (5) inside is equipped with mixing chamber (7) that are linked together with gas transmission hole (6), the bottom is equipped with honeycomb duct (8) that communicate mixing chamber (7) and combustion chamber (3), still be equipped with more than one through-hole two (9) that are used for letting in the air that are linked together with mixing chamber (7) on the liquefied gas access seat (5).

2. A burner head for a liquefied gas flame gun as claimed in claim 1, wherein: the first through hole (4) is obliquely communicated with the combustion chamber (3).

3. A burner head for a liquefied gas flame gun as claimed in claim 2, wherein: the included angle between the first through hole (4) and the vertical direction is 26-30 degrees.

4. A burner head for a liquefied gas flame gun as claimed in claim 3, wherein: the shell (1) comprises a hollow cone (1a) and a hollow cylinder I (1b), the diameter of the hollow cone is small at the top, the top end of the hollow cone (1a) is provided with a liquefied gas access seat (5), the included angle between the conical surface of the hollow cone (1a) and the horizontal direction is 26-30 degrees, and the through hole I (4) is arranged on the conical surface of the hollow cone (1a) and is perpendicular to the conical surface.

5. The torch head of a liquefied gas torch as claimed in claim 4, wherein: the bottom end of the hollow cone (1a) extends to form a second hollow cylinder (1c), and the second hollow cylinder (1c) is fixedly connected with the first hollow cylinder (1b) through welding.

6. A burner head for a liquefied gas flame gun as claimed in claim 1, wherein: the second through hole (9) is formed in the side wall of the liquefied gas access seat (5) and is obliquely communicated with the mixing chamber (7), and the included angle between the second through hole (9) and the vertical direction is 45 degrees.

7. A burner head for a liquefied gas flame gun as claimed in claim 1, wherein: the liquefied gas access seat (5) and the flow guide pipe (8) are of an integrated structure.

8. A burner head for a liquefied gas flame gun as claimed in claim 7, wherein: liquefied gas access seat (5) set up on casing (1) top surface, honeycomb duct (8) pass casing (1) top terminal surface and set up inside combustion chamber (3), honeycomb duct (8) external screw thread connection has nut (10) that are used for fixed honeycomb duct (8).

9. A burner head for a liquefied gas flame gun as claimed in claim 8, wherein: and a gasket (11) is arranged between the nut (10) and the inner surface of the top end of the shell (1).