TWM644791U - Gas mixing and burner connection structure - Google Patents

Abstract

Gas mixing and burner connection structure, it consists of a mixing device, a connecting pipe unit and a joint device; the mixing device includes a mixing plug with a round plug body with a central through hole and a fixed nut that can be screwed to the front end of the handle of the gas supply pipe. The joint device includes a connecting piece, a guide ring and a screw piece, and the flame spout pipe is sequentially passed through the screw piece, the sealing ring and the guide ring are fixed on the connecting piece. Then fix the mixing device at one end of the connecting pipe of the connecting pipe unit, and connect and fix the other end with the joint device. Connecting tubes of different lengths or diameters of the central channel can be quickly replaced according to different usage occasions or different operating habits, improving usability and efficacy.

Description

Gas mixing plug and flame nozzle connection structure

This new model relates to a connection structure between a gas mixing plug and a flame nozzle. The threads on the outer edge of the connecting pipe of the connecting pipe unit are quickly connected to the threads in the mixing end of the mixing plug of the mixing device and the connecting parts of the joint device to join the threads of the joint holes in the pipe. Separate, it can quickly replace the connecting pipes of different lengths or different central through-hole diameters, providing applicability to different parameters or different operators' use situations, thereby improving the convenience and safety of use.

According to the new patent No. M545007, a "mini fusion splicer" including a first tube body and a second tube body is disclosed.

The first pipe system has a large diameter section and a small diameter section, the small diameter section can be connected to the second pipe body, and the outer surface of one end of the large diameter section forms an external thread. In addition, it includes a plurality of gap rings and a plurality of fourth sealing rings spaced apart from each other in the large diameter section.

One end of the second tube body is connected with the first tube body. A channel is formed inside the second tube body. The channel has a gradually expanding structure from an end far away from the first tube body to an end adjacent to the first tube body. The second tube body is far away from the first tube body. One end of a pipe body has at least two radially arranged through holes, and each through hole is connected to the channel. It has a first section, a second section, a third section, and a fourth section that are connected to each other in sequence. Two through holes are provided at the fourth section, and the first section is connected with the first tube body.

In addition, the first threaded sleeve is set outside the third section of the second pipe body, the second threaded sleeve is set outside the large diameter section of the first pipe body, and is screwed and fixed with the external thread portion; and the second threaded sleeve is away from the third section. One end of a pipe body can be connected to a quartz tube, and the quartz pipe system is connected to the channel. A third sealing ring is plugged between one end of the first pipe body and the second screw sleeve and the inner end surface of the second screw sleeve.

When in use, the gas supply device is screwed to the first screw sleeve and connected to the channel of the second tube body; the gas supply device can supply oxygen to the channel, and the gas supply device also provides hydrogen gas to the two through holes, because the two through holes are connected to the channel and The pressure for supplying oxygen is greater than the pressure for supplying hydrogen. Therefore, the circulation speed of oxygen in the channel is faster, causing a negative pressure to form outside the through hole, whereby hydrogen is sucked into the channel through the two through holes and mixed with oxygen.

Press again, the channel formed inside the second tube body of the mini fusion splicer has a gradually expanding structure from the end far away from the first tube body to the end adjacent to the first tube body, that is, a horn-shaped diffusion mixing channel is formed, so that The main gas and the auxiliary gas are mixed in the horn-shaped channel. However, it is found that the trumpet-shaped mixing channel is fixed, and in general use situations, it is still easy to cause uneven and unstable mixing of the main and auxiliary fuels due to different usage parameters, such as users with different operating habits or different gas supply pressures. , and then produce There is a risk of backfire, especially since the fixed trumpet-shaped mixing channel is prone to carbon deposits and impurities due to long-term use, making it difficult to disassemble and clean.

The main purpose of this new model is to provide a connection structure between a gas mixing plug and a flame nozzle. It is a technical means that a threaded section is provided in the inner hole of the mixing end of the mixing plug of the mixing device and a connecting pipe unit is provided with a thread on the outer edge of one end of the connecting pipe. The outer edge thread of the connecting pipe is threaded into the internal thread of the mixing bolt assembly hole section, providing the ability to quickly disassemble, replace or clean.

The main purpose of the present invention is also to provide a connection structure between the gas mixing plug and the flame nozzle, which uses a connecting pipe unit to connect the pipe. One end of the outer edge is provided with threads, and the other end of the outer edge is also provided with threads, and the opposite joint device The connecting hole in the connecting pipe is also provided with thread technology, so that the connecting pipe can be screwed to the mixing bolt of the mixing device and the connecting piece of the joint device through the threads at both ends, so as to achieve the effect of rapid disassembly, replacement or cleaning.

Another object of the present invention is to provide a connection structure between a gas mixing plug and a flame nozzle, which is a technical means of providing threads on the outer edge of the connecting pipe and the mixing plug assembly hole section through a connecting pipe unit, so that the connecting pipe thread can be used The mixing plug is connected, and the through hole running through the center of the connecting pipe is combined with the mixing plug perforation and the mixing hole to form a stepped gas channel to improve the stability of the gas mixing.

A further object of the present invention is to provide a connection structure between the gas mixing plug and the flame nozzle, which It is a technical means that threads are provided at both ends of the connecting pipe to oppose the mixing plug of the mixing device and the connecting piece of the joint device, and the joint hole in the pipe is also provided with threads, so that the connecting pipe can be screwed to the mixing plug of the mixing device and the connecting piece of the joint device respectively. , so that connecting pipes of different lengths or central channel apertures can be quickly replaced according to different usage situations or different operating habits to improve usage efficiency.

The reason is that the present invention relates to a connection structure between a gas mixing plug and a flame nozzle, which is composed of a mixing device, a connecting pipe unit and a joint device. Wherein, the mixing device includes: a mixing plug and a fixing nut. The mixing plug is a round plug body with a central through hole. The outer diameter of the middle section is a convex ring with the largest diameter. One end extends into a slightly smaller diameter nozzle end, and then extends from the nozzle end into a smaller diameter inlet end. The convex ring The other end also extends into a mixing end with a slightly smaller diameter; its central through hole is shrunk from the entrance hole whose inner diameter is slightly the same as the diameter of the main gas supply pipe to the nozzle end, shrinking into a perforation section with a smaller aperture. Then it extends to the convex ring and expands into a mixing hole section with a larger diameter, and then continues to extend to the mixing end, and is provided with a threaded section at an appropriate place. The fixing nut has an internal thread at one end that can be screwed into the threaded pipe at the front end of the gas supply pipe handle, and the other end extends into a tubular outer ring, and the inner diameter of the outer ring is fastened to a smaller inner diameter at the appropriate place. Duan.

The connecting pipe unit is an oblong tubular connecting pipe with a thread of appropriate length on the outer edge of one end.

The joint device includes: a connecting piece, a guide ring, and a screw. Among them, the connecting piece has a through hole in the middle, and one end of the nut-shaped body on the outer edge extends into a joining tube with a larger diameter joining hole, and the other end extends into a threaded end with a larger diameter insertion hole, and The outer edge of the threaded end inserting hole has a tapered bevel; the guide ring is annular, with one end forming a tapered bevel on the outer edge; the screw is attached to One end of the nut-shaped body extends into an end ring cover with a through hole.

With the above components, the mixing device uses a fixed nut to fit the mixing end of the mixing plug and the front end of the handle of the gas supply pipe, and uses the fastening section of the inner diameter of the outer ring to engage the mixing plug convex ring, so that the mixing plug can be matched The large and small sealing rings are locked at the front end of the handle; the joint device provides a flame nozzle pipe fitting that sequentially penetrates the screw, sealing ring and guide ring and is inserted into the connector insertion hole. The tapered bevel of the guide ring can be used to insert the The hole cone-shaped bevel angle is automatically corrected, and the threaded end of the connecting piece is quickly screwed with the screw, and the sealing ring and the guide ring are locked with the end ring cover to fix the flame nozzle pipe; then the outer edge of one end of the connecting pipe of the connecting pipe unit is used The mixing device is fixed with internal threads in the combined hole section of the mixing bolt, and the other end of the connecting pipe is connected and fixed with the joint hole of the connecting piece of the joint device.

The inner hole of the mixing end of the mixing plug of the mixing device forms a combined hole section with a larger diameter, and is provided with a threaded section at an appropriate place; and the connecting pipe unit is provided with a thread of appropriate length on the outer edge of one end of the connecting pipe, through which one end of the connecting pipe is The outer thread is threaded into the internal thread of the combined hole section of the mixing bolt, providing rapid disassembly performance.

Another embodiment of the present invention is that the outer edge of one end of the connecting pipe of the connecting pipe unit is provided with threads, and the outer edge of the other end is also provided with threads, and the connecting hole in the connecting pipe of the connecting piece of the relative joint device is also provided with threads, so that the connecting pipe can The threads in the joint holes are fastened by threads. In order to facilitate the disassembly workers, a polygon can be provided on the outer edge of the appropriate middle section of the connecting pipe for a wrench to engage.

The mixing device receives the main gas from the inlet hole at the inlet end and injects it into the mixing hole with a larger diameter through the perforation at the nozzle end. At the same time, the auxiliary gas is also injected into the mixing hole through the oblique perforation at the nozzle end. The main and auxiliary gases are Gas is mixing The inner diameter of the joint hole is mixed, and enters the connecting pipe of the connecting pipe unit to continuously optimize the mixing, and then is introduced into the flame nozzle pipe fitting fixed by the connecting piece of the joint device to stably output the burner. Therefore, the central channel of the gas is perforated from the injection port end with the smallest diameter of the mixing bolt of the mixing device, then to the mixing hole with a larger diameter, to the central through hole of the connecting pipe, and then to the flame nozzle pipe to form a stepped mixing channel. Equally stepped channels prevent flashback and improve gas mixing efficiency.

According to the above, the specific embodiment of the connection structure of the new gas mixing plug and the flame nozzle can quickly connect with the threads in the mixing end of the mixing plug of the mixing device and the connecting piece of the joint device through the outer edge thread of the connecting pipe unit. The holes and threads are separated, allowing for quick replacement of connecting pipes of different lengths or different central through-hole diameters, providing applicability to different parameters or operating situations for different operators, thereby improving convenience and safety.

100:handle

200: Mixing device

20: Mixing plug

21:Protruding ring

22: Nozzle end

23: Entrance port

25: Mixed end

26: Groove

220:Sealing ring

225:Perforation

226: Oblique perforation

230:Sealing ring

235: Entrance hole

250: Combination hole

251:Thread

30:Fixing nut

31:Outer ring

32: buckle section

33:Buckle

400: Connecting pipe unit

40:Connecting pipe

41, 45: thread

42, 46: Groove

43, 47: Flange

500:Joint device

50: Connector

51:Ontology

52:Jointed pipe

53:joint hole

54:Insert hole

55:Threaded end

56: conical bevel

510:Through hole

530:Thread

60: Guide ring

61: Tapered slope

65:Sealing ring

70:Screws

71:Ontology

72: End ring cover

80: Flame outlet

A:Welding point

The first figure is a three-dimensional view of the connection structure between the new gas mixing plug and the flame nozzle.

The second figure is a three-dimensional exploded view of the connection structure between the new gas mixing plug and the flame nozzle.

The third figure is a cross-sectional view of the gas mixing device with the connection structure between the new gas mixing plug and the flame nozzle.

The fourth figure is a cross-sectional view of the gas mixing device and connecting pipe of the new gas mixing plug and flame nozzle connection structure.

The fifth figure is a schematic diagram of the mixing efficiency of the gas mixing channel of the new gas mixing plug and flame nozzle connection structure.

The sixth figure is a cross-sectional view of the connection structure between the new gas mixing plug and the flame nozzle.

The seventh figure is a cross-sectional view of the flame nozzle joint and connecting pipe welding structure of the new gas mixing plug and flame nozzle connection structure.

Figure 8 is a cross-sectional view of the connection structure between the new gas mixing plug and the flame nozzle.

Figure 9 is a cross-sectional view of the connection structure between the new gas mixing plug and the flame nozzle.

Figure 10 is a cross-sectional view of another embodiment of the flame nozzle joint of the novel gas mixing plug and flame nozzle connection structure.

Figure 11 is a combined sectional view of another embodiment of the flame nozzle joint of the novel gas mixing plug and flame nozzle connection structure.

Figure 12 is a schematic three-dimensional view of the flame nozzle joint of the new gas mixing plug and flame nozzle connection structure that can be quickly disassembled.

Figure 13 is a rapidly disassembled three-dimensional diagram of another embodiment of the flame nozzle joint of the new gas mixing plug and flame nozzle connection structure.

The details of the connection structure between the gas mixing plug and the flame nozzle of the present invention are explained as follows with specific examples and drawings:

Please refer to the first and second figures. The present invention relates to a connection structure between a gas mixing plug and a flame nozzle, which is composed of a mixing device 200, a connecting pipe unit 400 and a joint device 500.

The mixing device 200 includes: a mixing plug 20 and a fixing nut 30 .

Please refer to the third and fourth figures. The mixing plug 20 is a round plug body with a central through hole. The outer diameter of the middle section is the largest diameter convex ring 21. One end extends into a slightly smaller diameter injection port end 22, and then the injection port is The mouth end 22 extends into an inlet end 23 with a smaller diameter, and the other end of the convex ring 21 also extends into a mixing end 25 with a concave groove 26 on the outer edge of the smaller diameter. At the stepped end surfaces of the nozzle end 22 and the inlet end 23, more than one oblique ejection hole 226 is obliquely opened to communicate with the combination hole 250 section of the central through hole. In addition, a preset concave hole is preset on the outer edge of the nozzle end 22 and the inlet end 23. Grooves are provided for placing sealing rings 220 and 230 respectively. The central through hole is from the entrance hole 235 whose inner diameter is approximately the same as the diameter of the main gas supply pipe at the entrance end 23, and then shrinks into a smaller hole diameter 225 section at the nozzle end 22, and then extends to the convex ring 21 to expand. A mixing hole section 210 with a large diameter is formed, and then continues to extend toward the mixing end 25 to form a combination hole section 250 with a larger diameter, and a thread 251 is provided at an appropriate position of the combination hole 250 section.

The fixing nut 30 has an internal thread at one end for screwing the spiral pipe at the front end of the gas supply pipe handle 100, and the other end extends into a tubular outer ring 31, and the inner diameter of the outer ring 31 is tied into a smaller inner diameter. The fastening section 32 has a diameter (as shown in Figure 9), and a groove is provided at an appropriate position on the inner side of the fastening section 32 for fitting the "C" type buckle 33.

The connecting pipe unit 400 is an oblong tubular connecting pipe 40, with a thread 41 of appropriate length provided on the outer edge of one end, and a short section of unthreaded groove 42 is recessed at the proximal end surface of the thread 41, so that the end surface forms a flange 43 By.

The joint device 500 includes: a connecting piece 50 , a guide ring 60 , and a screw 70 .

Among them, the connecting piece 50 has a through hole 510 in the middle (as shown in the sixth figure), and the nut-shaped outer edge of the body 51 extends from one end to a joint tube 52 with a larger diameter joint hole 53, and the other end extends A threaded end 55 is formed with a larger diameter insertion hole 54, and the outer end edge of the threaded end 55 inside the insertion hole 54 has a tapered bevel 56.

The guide ring 60 is annular, with one end forming a tapered slope 61 on the outer edge.

The screw 70 is extended from one end of the nut-shaped body 71 to form an end ring cover 72 with a through hole.

Please refer to Figures 8 and 9. The mixing device 200 uses a fixing nut 30 to fit the mixing plug 20 and the mixing end 25 to the front end of the gas supply pipe handle 100. The fastening section of the inner diameter of the outer ring 31 is used. 32 engages the protruding ring 21 of the mixing bolt 20 to lock the mixing bolt 20 on the front end of the handle 100 . The outer edge thread 41 of one end of the connecting pipe unit 400 is screwed to the thread 251 in the mixing end 25 of the mixing plug 20, and the other end of the connecting pipe unit 400 is inserted into the connecting hole 53 of the connecting piece 50 of the joint device 500 to join the joint hole 53 of the pipe 52 (as shown in Figures 6 and 7). as shown), and are welded and fixed with welding point A on the end surface of the joint pipe 52. The joint device 500 provides a flame nozzle 80 pipe that sequentially penetrates the screw 70 , the sealing ring 65 and the guide ring 60 and is inserted into the insertion hole 54 of the connector 50 . The tapered bevel 61 of the guide ring 60 can be used to taper the insertion hole 54 The shape bevel angle 56 automatically corrects the threaded end 55 of the connector 50 with the screw 70, and the end ring cover 72 locks the sealing ring 65 and the guide ring 60 to fix the flame nozzle 80 pipe.

At the same time, as shown in the fifth figure, the mixing device 200 takes over the main gas flow through the inlet hole 235 of the inlet end 23. After the perforations 225 of the nozzle end 22 are injected into the larger diameter mixing holes 210, the auxiliary gas is also injected into the larger diameter mixing holes 210 through the oblique perforations 226 of the nozzle end 22. The main and auxiliary gases are in the mixing holes 210 The inner diameter is mixed, and enters the connecting pipe 40 of the connecting pipe unit 400 for continuous and fully optimized mixing, and then is introduced into the flame nozzle 80 fixed by the connecting piece 50 of the joint device 500 to stably output the burner.

According to the above, as shown in Figure 12, the specific embodiment of the connection structure of the new gas mixing plug and the flame nozzle can quickly connect to the mixing end of the mixing plug 20 of the mixing device 200 through the outer edge thread 41 of the connecting pipe 40 of the connecting pipe unit 400. The threads 251 in 25 are separated, so that connecting pipes 40 of different lengths or different central through-hole diameters can be replaced to achieve expected performance.

As shown in Figure 10, another embodiment of the present invention is that the outer edge of the connecting pipe 40 of the connecting pipe unit 400 is provided with a thread 41 at one end, and the outer edge of the other end is also provided with a thread 45, and the proximal end surface of the thread 45 is A short section of unthreaded groove 46 is recessed to form a flange 47 on the end surface. The connecting hole 53 in the connecting pipe 52 of the connecting piece 50 of the relative joint device 500 is also provided with a thread 530 so that the connecting pipe 40 can be screwed to the thread 530 in the connecting hole 53 by the thread 45 . As shown in Figure 13, in addition to the outer edge thread 41 of one end of the connecting pipe 40 of the connecting pipe unit 400, which can be quickly separated from the thread 251 in the mixing end 25 of the mixing plug 20 of the mixing device 200, the other end can also be quickly connected with the joint device. The threads 530 in the joint hole 53 of the 500 connecting piece 50 connecting pipe 52 are separated, and the connecting pipe 40 of different lengths or different central through-hole diameters can be replaced conveniently and efficiently.

In order to facilitate the disassembly worker, a polygon for a wrench to fit is provided at an appropriate outer edge of the middle section of the connecting pipe 40 .

In summary, the specific embodiments and detailed descriptions in conjunction with the drawings show that in addition to improving the stability of gas mixing through the technical means of stepped gas channels, the present invention also uses the technology of quickly replacing connecting pipes of different lengths or central channel apertures. This means that connecting pipes of different lengths or central channel apertures can be quickly replaced according to different usage situations or operating habits, thereby improving the usability and efficiency, thereby providing rapid disassembly and cleaning performance, which is especially progressive and industrially useful. safety.

100:handle

200: Mixing device

20: Mixing plug

21:Protruding ring

22: Nozzle end

23: Entrance port

25: Mixed end

26: Groove

220:Sealing ring

230:Sealing ring

30:Fixing nut

31:Outer ring

33:Buckle

400: Connecting pipe unit

40:Connecting pipe

41:Thread

42: Groove

43:Flange

500:Joint device

50: Connector

51:Ontology

52:Jointed pipe

60: Guide ring

61: Tapered slope

65:Sealing ring

70:Screws

71:Ontology

72: End ring cover

80: Flame outlet

Claims (4)

A gas mixing plug and flame nozzle connection structure is composed of a mixing device, a connecting pipe unit and a joint device; wherein Mixing devices include: A mixing plug is a round plug body with a central through hole. The outer diameter of the middle section is a convex ring with the largest diameter. One end extends into a slightly smaller diameter nozzle end, and then extends from the nozzle end to a smaller diameter inlet end. The other end of the convex ring also extends into a mixing end with a slightly smaller diameter; its central through hole is shrunk from the entrance hole whose inner diameter is slightly the same as the main gas supply pipe diameter to the injector end, which shrinks into a smaller aperture - an injector. The hole section then extends to the convex ring and expands into a larger hole diameter mixing hole section, and is provided with threaded sections at appropriate places; A fixed nut has an internal thread at one end that can be screwed into the spiral pipe at the front end of the gas supply pipe handle, and the other end extends into a tubular outer ring, and the inner diameter of the outer ring is tied to a smaller inner diameter at the appropriate place. fastening section; The connecting pipe unit is an oblong tubular connecting pipe with a thread of appropriate length on the outer edge of one end; Connector devices include: A connecting piece with a through hole in the middle, and the nut-shaped outer edge of the body extends into a connecting tube with a larger diameter coupling hole at one end, and extends into a threaded end with a larger diameter insertion hole at the other end, and The outer end edge of the threaded end insertion hole is tapered; A guide ring is annular in shape, with one end forming a tapered slope at the outer edge; A screw fastener is attached to one end of the nut-shaped body and extends into an end ring cover with a through hole; With the above components, the mixing device uses a fixed nut to fit the mixing end of the mixing plug and the front end of the handle of the gas supply pipe, and uses the fastening section of the inner diameter of the outer ring to engage the mixing plug convex ring, so that the mixing plug can be matched The large and small sealing rings are locked on the front end of the handle; the joint device provides flame nozzle pipe fittings that pass through the screws and seals in sequence. The sealing ring and the guide ring are inserted into the insertion hole of the connector. The tapered bevel of the guide ring and the tapered bevel of the insertion hole can be automatically corrected to quickly screw the threaded end of the connector with the screw and use the end face ring. Cover and lock the sealing ring and guide ring to fix the flame nozzle pipe fitting; then use the outer edge thread of one end of the connecting pipe of the connecting pipe unit to screw into the internal thread of the combined hole section of the mixing plug to fix the mixing device, and use the other end of the connecting pipe to the joint device The connector engaging hole connects the fixer. The connection structure between the gas mixing plug and the flame nozzle as described in claim 1, wherein the outer edge of the connecting pipe of the connecting pipe unit is provided with threads at one end, and the outer edge at the other end is also threaded, and the connecting piece of the opposite joint device is connected to the inside of the pipe The joint holes are also provided with threads so that the connecting pipe can be screwed to the threads in the joint holes. The connection structure between the gas mixing plug and the flame nozzle as described in claim 1 or 2, wherein a polygonal shape for wrench fitting is provided on the outer edge of the middle section of the connecting pipe. The connection structure between the gas mixing plug and the flame nozzle as described in claim 1 or 2, wherein a short section of unthreaded groove is recessed at the threaded proximal end surface of the outer edge of the connecting pipe, so that the end surface forms a flange.

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