A wind lamp head and a heated wind lamp device

Abstract

The present invention relates to the technical field of wind lamp heating, and specifically relates to a wind lamp head and a heating wind lamp device. One end of the first housing is an air inlet end, and the other end of the first housing is a flame spraying end. A first cavity is formed inside the first housing. The second housing is located inside the first cavity. One end of the second housing is adapted to the flame spraying end, and a plurality of first flame spraying holes are formed between the second housing and the first housing. A gap is left between the side wall of the second housing and the inner wall of the first housing. A second cavity is formed inside the second housing. A first through hole is also formed on the side wall of the second housing, and the first through hole is used to communicate the first cavity and the second cavity. The core body is located inside the second cavity. A plurality of second flame spraying holes are formed between one end of the core body and the second housing. A gap is left between the side wall of the core body and the inner wall of the second housing. The other end of the core body passes through the second housing and is provided with a ventilation hole. A second through hole is also formed on the side wall of the core body, and the second through hole is used to communicate the second cavity and the ventilation hole.

Description

Technical Field

[0001] The present invention relates to the technical field of wind lamp heating, and particularly relates to a wind lamp head and a heated wind lamp device. Background Art

[0002] During ship repair, deformations of non-ferrous metals such as propellers or aluminum alloys need to be corrected. The heating of these non-ferrous metals is very different from that of ordinary steel. If non-ferrous metals are heated with ordinary heating lamps, phenomena such as melting of the base material and uneven heat absorption will occur, and the correction effect cannot be achieved. The correction of non-ferrous metals requires a dispersed, gentle, moderately warm flame, no backfire during the heating process, and a slow and gradual increase in temperature as the flame baking time increases. Natural gas or acetone is preferably used as the gas source, so that the temperature inside and on the surface of these non-ferrous metals will be the same, thus achieving uniform heat absorption and not generating the so-called problem of being red on the outside but not on the inside. During the correction process, cracks are not likely to occur, and the bending and straightening are smooth and natural. However, the flames of existing ordinary heating lamps are concentrated. When using a neutral flame, the flame is fierce, not gentle and uneven. When using a carburizing flame, the flame is fierce and the temperature rises rapidly and steeply. When using an oxidizing flame, the flame is even more violent, often causing the surface of the base material to melt while the inside of the base material does not reach the temperature, making effective correction impossible.

[0003] In the prior art, there are also other improved means to enlarge the wind lamp head and improve it in terms of flame holes, the shape and flow rate of the wind lamp head, etc., so as to achieve a more ideal heating effect. For example, the external dimension is increased from Ф25 to Ф30, the total length is increased from 25 mm to 30 mm, and the air outlet is increased from 24 holes to 40 holes. After the improvement, the heating range is expanded and the heating temperature is increased. However, this improvement has a certain effect on steel, bolts or shafts, and there is a problem with the matching of its flow rate. When in use, the following problems will occur: the flow rate of the wind lamp head is fast, and the air intake and air outlet combustion cannot keep up, easily causing frequent backfires, lamp tube explosions and other safety hazards; simply increasing and enlarging the air outlet holes, although the number of flames increases, the service life of the lamp head is shortened by half compared with before. Although the wall thickness of the lamp head is thickened, it is still possible to burn off the entire air outlet surface of the lamp head during the heating process and become scrapped; the mixed gas is difficult to adjust, the input is less than the output, and the inner cavity is simple, resulting in insufficient gas mixing and unable to clearly adjust the neutral flame, carburizing flame and oxidizing flame. Especially when adjusting the oxidizing flame, backfires often occur, or backfires occur during the heating process. This improvement of the lamp head has a certain temperature accelerating effect on some rusted steel parts, but it is completely unsuitable for heating non-ferrous metal materials.

[0004] Therefore, conventional wind lamps cannot be used to deal with the deformation heating correction of non-ferrous metals with a certain thickness. Summary of the Invention

[0005] To solve the problems existing in the above-mentioned prior art, one of the objectives of the present invention is to provide a wind lamp head, which is specifically used for heating non-ferrous metals or correcting deformation. It can make the ejected flame dispersed, soft, with a moderate temperature, without backfire during the heating process, and the temperature can gradually rise slowly as the flame baking time increases, conforming to the gas sources such as natural gas or acetone. The temperature inside and on the surface of the non-ferrous metal is relatively consistent during the heating state, so the heating is uniform. Another objective of the present invention is to provide a heating wind lamp device, which uses the above-mentioned wind lamp head and a special intake handle, is convenient for adjusting various flames and is gentle without backfire, and each component is convenient for disassembly and maintenance.

[0006] A wind lamp head and a heating wind lamp device according to the present invention include:

[0007] A first housing, one end of the first housing is an air intake end, the other end of the first housing is a flame ejection end, and a first cavity is formed inside the first housing;

[0008] A second housing, the second housing is located inside the first cavity, one end of the second housing is adapted to the flame ejection end, and a plurality of first flame ejection holes are formed between the second housing and the first housing. There is a gap between the side wall of the second housing and the inner wall of the first housing. A second cavity is formed inside the second housing, and a first through hole is also opened on the side wall of the second housing. The first through hole is used to communicate the first cavity and the second cavity;

[0009] A core body, the core body is located inside the second cavity, a plurality of second flame ejection holes are formed between one end of the core body and the second housing. There is a gap between the side wall of the core body and the inner wall of the second housing. The other end of the core body passes through the second housing and is provided with a ventilation hole. A second through hole is also opened on the side wall of the core body. The second through hole is used to communicate the second cavity and the ventilation hole.

[0010] In one embodiment, a plurality of convex platforms are provided on the flame ejection end of the first housing along the axial direction of its edge. The plurality of convex platforms are evenly arranged around the central axis of the first housing, and a gap is left between each adjacent two convex platforms.

[0011] In one embodiment, the inner side wall of the convex platform cooperates with the flame ejection end and has an open structure. An outward chamfer is formed at the edge of the second housing corresponding to the second flame ejection hole. The first flame ejection holes and the second flame ejection holes are both evenly distributed in the circumferential direction, and the cross sections of the first flame ejection holes and the second flame ejection holes are both triangular.

[0012] In one embodiment, the diameter of the first cavity is greater than the inner diameter of the air inlet end. There is a space between one end of the core body passing through the second housing and the air inlet end, and the inner diameter of the ventilation hole is smaller than the inner diameter of the air inlet end.

[0013] In one embodiment, a third through hole is provided on the side wall of one end of the core body passing through the second housing, and a fourth through hole is also provided on the first housing corresponding to the position of the third through hole.

[0014] In one embodiment, the diameter of the first cavity is 28 - 35 mm, the length of the first cavity is 40 - 50 mm, and the length of the first cavity is 1.3 - 1.6 times the length of the second cavity. The diameter of the second cavity is 18 - 22 mm, and the inner diameters of the first through hole, the ventilation hole, and the second through hole are all 5 - 7 mm.

[0015] A heating wind lamp device of the present invention includes the above - mentioned wind lamp head and an air inlet handle. The air inlet handle includes an air inlet section, an extension section, and a connection section connected in sequence. The end of the connection section is threadedly connected to the air inlet end of the first housing. An oxygen inlet and a gas inlet are respectively communicated on the air inlet section, and an oxygen regulating valve and a gas regulating valve are respectively provided corresponding to the air inlet section.

[0016] In one embodiment, a third cavity is provided inside one end of the air inlet section close to the extension section. The other end of the air inlet section is flat and is used for arranging the oxygen inlet and the gas inlet side by side. The third cavity is respectively communicated with the oxygen inlet and the gas inlet.

[0017] In one embodiment, one end of the connection section away from the extension section forms a corner, and the angle α of this corner is 140° - 160°.

[0018] In one embodiment, the diameter of the extension section is greater than the diameter of the connection section. The length of the extension section is 150 - 180 mm, and the length of the connection section is 3 - 4 times the length of the extension section.

[0019] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0020] 1. The wind lamp head of the present invention is specifically used for heating non-ferrous metals or correcting deformation. It can make the ejected flame dispersed, gentle, with a moderate temperature, no backfire during the heating process, and the temperature can gradually rise slowly as the flame baking time increases. It is suitable for gas sources such as natural gas or acetone. The temperature inside and on the surface of the non-ferrous metal is relatively consistent during heating, so the heating is uniform. And the heating wind lamp device using the above wind lamp head and the special intake handle is convenient for adjusting various flames, gentle without backfire, and each component is convenient for disassembly, installation and maintenance.

[0021] 2. The first through hole and the second through hole have a gas mixing effect. Moreover, as the heating time increases, the gas will be more concentrated and overflow from the second flame ejection hole, so that the flame can be further concentrated to the inner circle and the temperature can be further increased.

[0022] 3. The third through hole and the fourth through hole are positioning holes, which are used to insert auxiliary fixing pins to fix the position of the core body. At the same time, a structure similar to a switch valve can be set on the pin to adjust the flow rate at the ventilation hole.

[0023] 4. One end of the intake handle is fixedly connected to the wind lamp head by thread. The other end can introduce and pre-mix oxygen and gas, and can also adjust the corresponding flow rate, so that the wind lamp head can generate neutral flames, carburizing flames, oxidizing flames with different oxygen and gas ratios to adapt to different working requirements; the third cavity can be used to pre-mix gas and oxygen, and the shape of the intake section can reduce the overall weight, which is convenient for the staff to grip and better control and adjust the gas and oxygen flow rates during heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view of a wind lamp head of the present invention;

[0025] Figure 2 is the front sectional view of a wind lamp head of the present invention;

[0026] Figure 3 is the side view of the flame ejection end of a wind lamp head of the present invention;

[0027] Figure 4 is the front view of the intake handle of a heating wind lamp device of the present invention;

[0028] Figure 5 is the top view of the intake handle of a heating wind lamp device of the present invention.

[0029] Description of reference numerals: 1 - First housing, 2 - Second housing, 3 - Core body, 4 - First flame ejection hole, 5 - First through hole, 6 - Second flame ejection hole, 7 - Vent hole, 8 - Second through hole, 9 - Boss, 10 - Third through hole, 11 - Fourth through hole, 12 - Intake handle, 13 - Oxygen inlet, 14 - Gas inlet, 15 - Oxygen regulating valve, 16 - Gas regulating valve, 17 - Third cavity. Detailed implementation manners

[0030] The accompanying drawings are only for illustrative purposes and should not be construed as limitations on this patent; for better illustration of this embodiment, some components in the accompanying drawings are omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be said that the interiors of two components are in communication. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] As Figures 1-3 shown, a wind lamp head of the present invention includes:

[0033] A first housing 1, one end of the first housing 1 is an intake end, the other end of the first housing 1 is a flame ejection end, and a first cavity is formed inside the first housing 1;

[0034] A second housing 2, the second housing 2 is located inside the first cavity, one end of the second housing 2 is adapted to the flame ejection end, and a plurality of first flame ejection holes 4 are formed between the second housing 2 and the first housing 1. There is a gap between the side wall of the second housing 2 and the inner wall of the first housing 1. A second cavity is formed inside the second housing 2, and a first through hole 5 is also provided on the side wall of the second housing 2. The first through hole 5 is used to communicate the first cavity and the second cavity;

[0035] A core body 3, the core body 3 is located inside the second cavity. A plurality of second flame ejection holes 6 are formed between one end of the core body 3 and the second housing 2. There is a gap between the side wall of the core body 3 and the inner wall of the second housing 2. The other end of the core body 3 passes through the second housing 2 and is provided with a vent hole 7. A second through hole 8 is also provided on the side wall of the core body 3. The second through hole 8 is used to communicate the second cavity and the vent hole 7.

[0036] The wind lamp head of the present invention is specifically used for heating non-ferrous metals or correcting deformation. It can make the ejected flame dispersed, gentle, with a moderate temperature, without backfire of the flame during the heating process, and the temperature can gradually rise slowly as the flame baking time increases. It is suitable for gas sources such as natural gas or acetone. The temperature inside and on the surface of the non-ferrous metal during the heating state is relatively consistent, so the heating is uniform. When in use, the gas enters the first cavity from the intake end. First, it will overflow from the first flame ejection holes 4 between the first housing 1 and the second housing 2 to form an outer ring flame. Gradually, as the gas is filled, the gas will flow from the gap between the first housing 1 and the second housing 2, that is, the first cavity, through the first through hole 5 into the second cavity. Moreover, the vent hole 7 will also connect the gas from the connected first cavity to the second cavity through the second through hole 8. The gas in the second cavity will overflow from the second flame ejection holes 6 between the second housing 2 and the core 3 to form an inner ring flame, thus cooperating with the outer ring flame to achieve heating. And as the heating time increases, due to the gas mixing effect of the first through hole 5 and the second through hole 8, the gas will be more concentrated and overflow from the second flame ejection holes 6. Then the flame further concentrates in the inner ring, causing the temperature to further rise, so as to achieve the effects of dispersed, gentle, and moderate-temperature flame, being suitable for various current gas sources, and making the temperature inside and on the surface of the non-ferrous metal consistent during the heating state, with uniform heating and not damaging the internal structure of the base material to cause internal injuries. Moreover, the wind lamp head can be made of red copper rod, which is durable. The first housing 1, the second housing 2, and the core 3 are sleeved with each other and can be disassembled to clean the carbon deposits inside, thus avoiding the phenomenon of uneven flame.

[0037] In one of the embodiments, a plurality of convex platforms 9 are provided on the flame ejection end of the first housing 1 and extend along the axial direction of its edge. The plurality of convex platforms 9 are evenly arranged around the central axis of the first housing 1, and there is a notch between every two adjacent convex platforms 9. To make the flame coming out of the flame ejection holes more uniform and concentrated, the convex platforms 9 are set to be higher than the edge of the plane of the flame ejection end, so that the gas will not be too dispersed and unable to burn, but a notch needs to be left to allow air to mix. Moreover, the inner side wall of the convex platform 9 cooperates with the flame ejection end and has an open structure. The edge of the second housing 2 corresponding to the second flame ejection holes 6 forms an outward chamfer. The first flame ejection holes 4 and the second flame ejection holes 6 are both evenly distributed in the circumferential direction, and the cross-sections of both the first flame ejection holes 4 and the second flame ejection holes 6 are triangular. That is, both the first flame ejection holes 4 and the second flame ejection holes 6 form an open shape at the outlet, so as to allow the gas to overflow to form an outwardly erupting fire ring, and its shape is also convenient for the flame to form a trend of dispersing outward, and the cutting process of the corresponding positions of the second housing 2 and the core 3 is more convenient.

[0038] Further, the diameter of the first cavity is larger than the inner diameter of the air inlet end. There is a space between the end of the core body 3 passing through the second housing 2 and the air inlet end, and the inner diameter of the ventilation hole 7 is smaller than the inner diameter of the air inlet end. The internal space of the first cavity is larger, further enabling the full mixing of fuel gas and oxygen. The ventilation hole 7 corresponds to the air inlet end but has a smaller inner diameter, so that when the fuel gas surges in rapidly, it mainly overflows along the inner wall of the first cavity to the first flame spraying hole 4. After the fuel gas pressure stabilizes, it is more concentrated and directly enters the ventilation hole 7, flows into the second cavity along the second through hole 8, and overflows to the second flame spraying hole 6.

[0039] In addition, a third through hole 10 is provided on the side wall of the end of the core body 3 passing through the second housing 2, and a fourth through hole 11 is also provided on the first housing 1 at a position corresponding to the third through hole 10. The third through hole 10 and the fourth through hole 11 are used to insert a bolt or the like to fix the position of the core body 3, and a structure similar to a switching valve can also be provided on the bolt to adjust the flow rate at the ventilation hole 7. The other specific dimensional parameters are as follows: the diameter of the first cavity is 28 - 35 mm, preferably 32 mm. The connection between the air inlet end and the first cavity is in a trumpet shape for transition, and the length of the first cavity is 40 - 50 mm, preferably 45 mm, to ensure that the second housing 2 and the core body 3 can be accommodated with a certain space reserved. Therefore, the length of the second cavity is preferably 30 mm, and the diameter of the second cavity is 20 mm, so as to accommodate the end of the core body 3. The inner diameters of the first through hole 5, the ventilation hole 7, and the second through hole 8 are all 6 mm, and the gaps between the first housing 1 and the second housing 2, and between the second housing 2 and the core body 3 are approximately 2 mm. Thus, both the first through hole 5 and the second through hole 8 have a good gas mixing effect, and the ventilation hole 7 can easily introduce the fuel gas after the pressure stabilizes into the inner fire ring.

[0040] As Figures 1-5 shown, a heating lantern device includes the above - mentioned lantern head and an air inlet handle 12. The air inlet handle 12 includes an air inlet section, an extension section, and a connection section connected in sequence. The end of the connection section is threadedly connected to the air inlet end of the first housing 1. An oxygen inlet 13 and a fuel gas inlet 14 are respectively communicated on the air inlet section, and an oxygen regulating valve 15 and a fuel gas regulating valve 16 are respectively provided corresponding to the air inlet section. This device uses the above - mentioned lantern head and a special air inlet handle, which is convenient for adjusting various flames, gentle without flashback, and each component is convenient for disassembly, assembly, and maintenance. One end of the air inlet handle 12 is threadedly connected and fixed to the lantern head, and the other end can introduce and pre - mix oxygen and fuel gas, and can also perform corresponding flow rate adjustment, so as to enable the lantern head to generate neutral flames, carburizing flames, oxidizing flames, etc. with different oxygen and fuel gas ratios to adapt to different working requirements.

[0041] Further, a third cavity 17 is provided inside one end of the intake section close to the extension section. The other end of the intake section is flat and is used for arranging an oxygen inlet 13 and a fuel gas inlet 14 side by side. The third cavity 17 is respectively communicated with the oxygen inlet 13 and the fuel gas inlet 14. The third cavity 17 is used to premix the fuel gas and oxygen. The shape of the intake section can reduce the overall weight, facilitate the staff to grip, and better control and adjust the flow rates of the fuel gas and oxygen during heating. One end of the connection section far from the extension section forms a corner, and the angle α of this corner is 150°. At a certain corner angle, it is not easy to affect the flow of the fuel gas and oxygen, and it can make the connected wind lamp head convenient for the staff holding the intake section to observe, so as to correspond to the appropriate position during the correction process. The specific dimensional parameters of the intake handle 12 are as follows: the diameter of the extension section is larger than that of the connection section, so that the fuel gas and oxygen gradually mix and concentrate starting from the third cavity 17. The length of the extension section is preferably 160 mm, and the overall length of the connection section is 600 mm. In this way, it can ensure that the staff can effectively operate the wind lamp head at a certain distance from the wind lamp head.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present application.

[0043] In the figure, the description of the positional relationship is only for illustrative purposes and cannot be understood as a limitation of this patent. Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A wind lamp head, characterized in that, Comprising: A first housing (1), one end of the first housing (1) being an air inlet end, the other end of the first housing (1) being a flame jetting end, and a first cavity being formed inside the first housing (1); A second housing (2), the second housing (2) being located inside the first cavity, one end of the second housing (2) being adapted to the flame jetting end and forming a plurality of first flame jetting holes (4) with the first housing (1), a gap being left between the side wall of the second housing (2) and the inner wall of the first housing (1), a second cavity being formed inside the second housing (2), and a first through hole (5) being further provided on the side wall of the second housing (2), the first through hole (5) being used for communicating the first cavity and the second cavity; A core body (3), the core body (3) being located inside the second cavity, a plurality of second flame jetting holes (6) being formed between one end of the core body (3) and the second housing (2), a gap being left between the side wall of the core body (3) and the inner wall of the second housing (2), the other end of the core body (3) passing through the second housing (2) and being provided with a ventilation hole (7), and a second through hole (8) being further provided on the side wall of the core body (3), the second through hole (8) being used for communicating the second cavity and the ventilation hole (7).

2. The wind lamp head according to claim 1, wherein, On the flame jetting end of the first housing (1), a plurality of convex platforms (9) are provided and extend along the axial direction of its edge, the plurality of convex platforms (9) being uniformly arranged around the central axis of the first housing (1), and a notch being left between every two adjacent convex platforms (9).

3. The hurricane lamp head according to claim 2, wherein, The inner side wall of the convex platform (9) cooperates with the flame jetting end and has an open structure, a chamfer is formed on the edge of the second housing (2) corresponding to the second flame jetting hole (6), the first flame jetting holes (4) and the second flame jetting holes (6) are both uniformly distributed in the circumferential direction, and the cross sections of the first flame jetting holes (4) and the second flame jetting holes (6) are both triangular.

4. The hurricane lamp head according to claim 1, characterized in that, The diameter of the first cavity is larger than the inner diameter of the air inlet end, a space is left between the end of the core body (3) passing through the second housing (2) and the air inlet end, and the inner diameter of the ventilation hole (7) is smaller than the inner diameter of the air inlet end.

5. The hurricane lamp head according to claim 4, characterized in that, A third through hole (10) is provided on the side wall of the end of the core body (3) passing through the second housing (2), and a fourth through hole (11) is further provided on the first housing (1) at a position corresponding to the third through hole (10).

6. The wind lamp head according to claim 4, wherein, The diameter of the first cavity is 28 - 35 mm, the length of the first cavity is 40 - 50 mm, and the length of the first cavity is 1.3 - 1.6 times the length of the second cavity, the diameter of the second cavity is 18 - 22 mm, and the inner diameters of the first through hole (5), the ventilation hole (7) and the second through hole (8) are all 5 - 7 mm.

7. A heating hurricane lamp device, characterized in that, Comprising a wind lamp head as described in any one of claims 1-6 and an intake handle (12), the intake handle (12) includes an intake section, an extension section, and a connection section connected in sequence. The end of the connection section is threadedly connected to the intake end of the first housing (1). An oxygen inlet (13) and a gas inlet (14) are respectively communicated on the intake section, and an oxygen regulating valve (15) and a gas regulating valve (16) are respectively provided corresponding to the intake section.

8. The heating lantern device according to claim 7, characterized in that, A third cavity (17) is provided inside one end of the intake section close to the extension section. The other end of the intake section is flat and used for arranging the oxygen inlet (13) and the gas inlet (14) side by side. The third cavity (17) is respectively communicated with the oxygen inlet (13) and the gas inlet (14).

9. The heating hurricane lamp device according to claim 7, characterized in that, One end of the connection section away from the extension section forms a corner, and the angle α of this corner is 140° to 160°.

10. The heating hurricane lamp device according to claim 7, wherein, The diameter of the extension section is greater than the diameter of the connection section. The length of the extension section is 150 to 180 mm, and the length of the connection section is 3 to 4 times the length of the extension section.

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