Oil gun mounting device capable of freely advancing and retreating

Abstract

The utility model discloses a freely advancing and retreating oil gun installation device which comprises an inner pipe, the inner pipe is fixedly installed in an installation hole formed in the surface of one side of a boiler through a flange, one end of an outer pipe is fixedly connected to the surface of one side of the flange, and a gap is formed between the inner wall of the outer pipe and the outer wall of the inner pipe. A plurality of inner supporting rings are fixedly connected to the inner wall of the outer pipe, two diagonal draw bars distributed up and down are arranged on the two sides of the outer pipe, the two ends of each diagonal draw bar are connected with the outer wall of the outer pipe and the inner wall of the boiler correspondingly, and two independent mounting channels are formed in the inner pipe in the extending direction of the inner pipe. An oil gun pipe and an ignition gun pipe are correspondingly and slidably connected into each mounting channel, the inner pipe and the outer pipe which are arranged in a double-layer mode are arranged, bending deformation of a pipeline is effectively supported and counteracted through cooperation of an inner supporting ring and a diagonal draw bar, the problem that pushing of the oil gun is blocked is solved, and the use safety and reliability of the oil gun are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric power boiler, specifically, relates to an oil gun mounting device with free advance and retreat. BACKGROUND

[0002] In the field of electric power boiler, the traditional oil gun mounting device has significant defects under long-term high-temperature environment. The existing device usually adopts a simple single pipe or fixed connection structure, without fully considering the influence of high temperature on the pipe material. In a high-temperature environment for a long time, the pipe material will be bent and deformed due to the action of gravity and thermal stress, causing the shape of the inner hole of the oil gun mounting pipe to change, and the gap between the oil gun and the pipe to decrease. When the gap is smaller than the bending deformation amount of the oil gun, the oil gun cannot be smoothly pushed to the designated area of the boiler ignition, affecting the normal ignition and temperature rise of the boiler. In addition, if an emergency occurs and the oil gun needs to be put into use for combustion support, the oil gun cannot be pushed, which may cause serious problems such as boiler fire extinguishing, affecting the normal operation of the boiler and posing a safety hazard.

[0003] How to invent an oil gun mounting device with free advance and retreat to improve these problems has become a problem that needs to be solved by technicians in the field. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides an oil gun mounting device with free advance and retreat, aiming to improve the problem that the existing burner oil gun mounting device usually adopts a single pipe or fixed connection structure, and the pipe material will be bent and deformed due to the action of gravity and thermal stress in a high-temperature environment for a long time, affecting the normal advance of the oil gun, causing the boiler to extinguish, and possibly posing a safety hazard.

[0005] The utility model is implemented as follows: an oil gun mounting device with free advance and retreat, comprising an inner pipe, the inner pipe is fixedly installed in the installation hole opened on one side surface of the boiler through a flange, one end of an outer pipe is fixedly connected to one side surface of the flange, the outer pipe is located inside the boiler and coaxially arranged with the inner pipe, a gap is arranged between the inner wall of the outer pipe and the outer wall of the inner pipe, a plurality of inner support rings uniformly distributed along the extension direction of the outer pipe are fixedly connected to the inner wall of the outer pipe, the inner diameter of each inner support ring is consistent with the outer diameter of the inner pipe, two oblique pull rods in up-down distribution are arranged on both sides of the outer pipe, the two ends of each oblique pull rod are connected with the outer wall of the outer pipe and the inner wall of the boiler, respectively, two independent installation channels are arranged inside the inner pipe along the extension direction thereof, an oil gun pipe and an ignition gun pipe are respectively and slidably connected in each installation channel, and the end of the inner pipe located outside the boiler is detachably connected with one end of the equipment connection pipe of the burner through a dust leakage prevention connection structure.

[0006] In a preferred technical scheme of the utility model, the two ends of each oblique pull rod are detachably connected with the outer wall of the outer pipe and the inner wall of the boiler through fasteners.

[0007] In a preferred technical scheme of the utility model, the anti-dust leakage connecting structure comprises a first connecting part and a second connecting part, the first connecting part is arranged at one end of the inner pipe, the second connecting part is arranged at one end of the equipment connecting pipe, a plurality of corresponding assembly holes are formed on the surfaces of the first connecting part and the second connecting part, a first connecting fastener is arranged in each assembly hole, a first annular sealing groove is arranged on the surface of the side of the second connecting part facing the first connecting part, and a first filling packing is arranged in the first annular sealing groove.

[0008] In a preferred technical scheme of the utility model, a second annular sealing groove is formed on the surface of the side of the second connecting part, a second filling packing is arranged in the second annular sealing groove, and an annular cover plate is arranged on one side of the second annular sealing groove, and the annular cover plate and the second connecting part are detachably connected through a second connecting fastener.

[0009] In a preferred technical scheme of the utility model, the equipment connecting pipe is provided with a propelling device for driving the oil gun pipe and the ignition gun pipe to slide and displace.

[0010] In a preferred technical scheme of the utility model, the propelling device comprises an oil gun propelling cylinder and an ignition gun propelling cylinder, the oil gun propelling cylinder and the ignition gun propelling cylinder are fixedly connected with the outer wall of the equipment connecting pipe through a support, and the piston rods of the oil gun propelling cylinder and the ignition gun propelling cylinder are fixedly connected with the oil gun pipe and the ignition gun pipe through a first connecting piece and a second connecting piece respectively.

[0011] In a preferred technical scheme of the utility model, the first connecting piece is sleeved on the outer part of the inner pipe, the first connecting piece is annular in shape as a whole, a sliding block is integrally arranged on the inner wall of the first connecting piece, the sliding block is slidably connected in a sliding groove, the sliding groove is formed on the outer wall of one side of the inner pipe and is in communication with an installation channel corresponding to the oil gun pipe, and one end of the sliding block is fixedly connected with the outer wall of the oil gun pipe.

[0012] The utility model discloses a kind of oil gun mounting devices of free in and out, when using, by being set up double-layer inner pipe and outer pipe and being set in the gap between them Inner support ring, it is effectively supported and offset with the diagonal strut cooperation between outer pipe and the inner wall of boiler and connected simultaneously, the bending deformation of pipeline is guaranteed that oil gun pipe and ignition gun pipe can freely and smoothly slide in installation channel, avoid the problem that oil gun propulsion is blocked due to pipeline bending, improve the use safety and reliability of oil gun. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings below only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 is a schematic perspective view of the overall structure provided by the embodiments of the present application;

[0015] Figure 2 is a schematic perspective view of the overall structure provided by the embodiments of the present application;

[0016] Figure 3 is a schematic perspective view of the overall structure provided by the embodiments of the present application;

[0017] Figure 4 is a schematic perspective view of the overall structure provided by the embodiments of the present application.

[0018] In the figure: 1 - inner tube; 2 - outer tube; 3 - gap; 4 - inner support ring; 5 - anti-dust connection structure; 6 - equipment connecting pipe; 7 - oil gun pipe; 8 - ignition gun pipe; 9 - flange; 10 - boiler; 11 - air duct; 101 - installation channel; 201 - inclined pull rod; 501 - first connecting part; 502 - second connecting part; 503 - first annular sealing groove; 504 - second annular sealing groove; 505 - first filling packing; 506 - second filling packing; 507 - first connecting fastener; 508 - annular cover plate; 509 - second connecting fastener; 601 - oil gun advancing cylinder; 602 - ignition gun advancing cylinder; 701 - first connecting piece; 801 - second connecting piece. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1 to 4The utility model provides a kind of technical scheme: a kind of oil gun mounting device of free advance and retreat, including inner tube 1, inner tube 1 is fixedly installed in the installation hole of the one side surface of boiler 10 by flange 9, one end of outer tube 2 is fixedly connected on the one side surface of flange 9, outer tube 2 is located in the air duct 11 that boiler 10 is inside and is coaxially arranged with inner tube 1, gap 3 is equipped between outer tube 2 inner wall and inner tube 1 outer wall, outer tube 2 inner wall is fixedly connected with several inner support rings 4 that are evenly distributed along its extension direction, the inner diameter of each inner support ring 4 is consistent with the outer diameter of inner tube 1, two oblique pull rods 201 that are distributed in up and down are provided on the both sides of outer tube 2, and the both ends of each oblique pull rod 201 are connected with the outer wall of outer tube 2 and the inner wall of boiler 10 respectively, two independent installation channels 101 are provided in inner tube 1 inside along its extension direction, and oil gun tube 7 and ignition gun tube 8 are slidably connected in each installation channel 101 respectively, and the one end of inner tube 1 located in the outside of boiler 10 is detachably connected between the one end of equipment connecting pipe 6 of combustor by dust leakage prevention connecting structure 5.

[0021] Please refer to Figure 1 The both ends of each oblique pull rod 201 are detachably connected with the outer wall of outer tube 2 and the inner wall of boiler 10 by fastener.

[0022] The connecting structure, such as bolt connection, clamp connection, etc., that is matched with the outer wall of outer tube 2 and the inner wall of boiler 10 is arranged at the both ends of oblique pull rod 201, and the corresponding fastener, such as bolt, nut, etc., is used for connection. In installation, the both ends of oblique pull rod 201 are aligned with the connecting positions of the inner wall of outer tube 2 and boiler 10, and the fastener is tightened for fixation; when dismounting is needed, the fastener is unscrewed, and then oblique pull rod 201 can be removed. The detachable connection mode improves the maintainability and replaceability of the device. When oblique pull rod 201 is damaged or the device needs to be maintained, oblique pull rod 201 can be conveniently removed for replacement or maintenance, without the need for large-scale dismounting of the whole device, thereby reducing maintenance cost and time. Meanwhile, this connection mode is also convenient for adjusting the position and angle of oblique pull rod 201 during installation, so as to ensure that the stable supporting effect of oblique pull rod 201 on the device reaches the best.

[0023] Please refer to Figure 3 And Figure 4 The dust leakage prevention connecting structure 5 includes first connecting part 501 and second connecting part 502, the first connecting part 501 is arranged at one end of inner tube 1, the second connecting part 502 is arranged at one end of equipment connecting pipe 6, a plurality of corresponding assembly holes are arranged on the surface of first connecting part 501 and second connecting part 502, a first connecting fastener 507 is arranged in each assembly hole, a first annular sealing groove 503 is arranged on the side surface of second connecting part 502 facing first connecting part 501, and a first packing 505 is arranged in the first annular sealing groove 503.

[0024] The first connecting part 501 and the second connecting part 502 are respectively arranged at one end of the inner pipe 1 and the equipment connecting pipe 6, and corresponding assembly holes are processed on the surfaces thereof, and the two are connected together by the first connecting fastener 507 (such as a bolt) passing through the assembly holes. A first annular sealing groove 503 is processed on the surface of the second connecting part 502 towards the first connecting part 501, and a first filling packing 505 (graphite packing) is installed in the groove. During installation, the first filling packing 505 is first placed into the first annular sealing groove 503, then the first connecting part 501 and the second connecting part 502 are aligned, the first connecting fastener 507 is inserted and tightened, so that the first filling packing 505 is extruded and deformed to fill the gap between the two connecting parts, thereby achieving sealing. Dust leakage from the connection between the inner pipe 1 and the equipment connecting pipe 6 can be effectively prevented. The graphite packing has good high-temperature resistance, wear resistance and sealing performance, and can adapt to the harsh environment during boiler operation to ensure the reliability of the sealing. The detachable connection mode facilitates replacement when the packing is worn or aged, thereby maintaining the sealing effect.

[0025] Further, a second annular sealing groove 504 is formed on the surface of the second connecting part 502 towards the equipment connecting pipe 6, and a second filling packing 506 is arranged in the second annular sealing groove 504. An annular cover plate 508 is arranged on one side of the second annular sealing groove 504, and the annular cover plate 508 is detachably connected with the second connecting part 502 by a second connecting fastener 509.

[0026] A second annular sealing groove 504 is processed on the surface of the second connecting part 502 towards the equipment connecting pipe 6, and a second filling packing 506 (graphite packing) is installed in the groove. An annular cover plate 508 is arranged on one side of the second annular sealing groove 504, and the annular cover plate 508 is detachably connected with the second connecting part 502 by a second connecting fastener 509 (such as a bolt). During installation, the second filling packing 506 is first placed into the second annular sealing groove 504, and then the annular cover plate 508 is covered thereon and tightened by the second connecting fastener 509, so that the annular cover plate 508 extrudes the second filling packing 506 to further enhance the sealing effect. The second annular sealing groove 504 and the second filling packing 506 are added, and the annular cover plate 508 is further extruded and sealed, forming a double-sealing structure to improve the sealing performance of the dust leakage prevention connecting structure 5. The double-sealing structure can more effectively prevent dust leakage, ensuring that the dust in the boiler does not enter the inside of the equipment connecting pipe 6, thereby protecting the normal operation of the equipment and reducing the pollution to the working environment. The detachable annular cover plate 508 facilitates inspection and replacement of the second filling packing 506, thereby facilitating maintenance.

[0027] Please refer to Figure 2 and Figure 3 The equipment connecting pipe 6 is provided with a propelling device for sliding displacement of the oil gun pipe 7 and the ignition gun pipe 8.

[0028] The burner is provided with a propelling device fixedly connected to the outer wall of the equipment connecting pipe 6, and the oil gun pipe 7 and the end of the ignition gun pipe 8 can be independently adjusted in position by the propelling device, so as to adjust the specific ignition position in the boiler 10 according to the actual situation.

[0029] Further, the propelling device includes an oil gun propelling cylinder 601 and an ignition gun propelling cylinder 602, which are respectively fixedly connected to the outer wall of the equipment connecting pipe 6 through support members, and the piston rods of the oil gun propelling cylinder 601 and the ignition gun propelling cylinder 602 are respectively fixedly connected to the oil gun pipe 7 and the ignition gun pipe 8 through first and second connecting members 701 and 801.

[0030] The oil gun propelling cylinder 601 and the ignition gun propelling cylinder 602 are respectively fixedly connected to the outer wall of the equipment connecting pipe 6 through support members (such as brackets), ensuring stable installation of the cylinders. First and second connecting members 701 and 801 are respectively installed at one end of the piston rods of the oil gun propelling cylinder 601 and the ignition gun propelling cylinder 602, and the first connecting member 701 is fixedly connected to the oil gun pipe 7, and the second connecting member 801 is fixedly connected to the ignition gun pipe 8. When the oil gun propelling cylinder 601 works, its piston rod is extended or retracted, and the oil gun pipe 7 is driven to slide in the installation channel 101 through the first connecting member 701; similarly, when the ignition gun propelling cylinder 602 works, the ignition gun pipe 8 is driven to slide in the installation channel 101. Two independent cylinders are used to control the oil gun pipe 7 and the ignition gun pipe 8, respectively, to realize independent operation of the two, and the positions of the oil gun pipe 7 and the ignition gun pipe 8 can be adjusted according to the actual ignition requirements, improving the flexibility and accuracy of ignition. The structure is simple and reliable, easy to control and maintain, and can effectively improve the performance and stability of the boiler ignition system.

[0031] Further, the first connecting member 701 is slidably sleeved outside the inner pipe 1, and the first connecting member 701 is in the form of a ring structure, and a sliding block is integrally arranged on the inner wall thereof, the sliding block is slidably connected in a sliding groove, the sliding groove is arranged on one side of the outer wall of the inner pipe 1 and is in communication with the installation channel 101 corresponding to the oil gun pipe 7, and one end of the sliding block is fixedly connected to the outer wall of the oil gun pipe 7.

[0032] The first connecting piece 701 is designed in a ring structure, which can be slidably sleeved outside the inner pipe 1. A sliding block is integrally processed on the inner wall of the first connecting piece 701, and a sliding groove is formed on the outer wall of one side of the inner pipe 1 and communicates with the installation channel 101 corresponding to the oil gun pipe 7. During installation, the sliding block of the first connecting piece 701 is aligned with the sliding groove of the inner pipe 1, and then the first connecting piece 701 is sleeved on the inner pipe 1, so that the sliding block is located in the sliding groove, and one end of the sliding block is fixedly connected with the outer wall of the oil gun pipe 7. In this way, when the piston rod of the oil gun advancing cylinder 601 drives the first connecting piece 701 to move, the sliding block slides in the sliding groove, guiding the oil gun pipe 7 to smoothly slide in the installation channel 101. The stability of the oil gun pipe 7 during the advancing process is improved, and the oil gun pipe 7 is prevented from shaking or deviating during the sliding process, so that the accuracy of ignition is ensured. The cooperation of the sliding block and the sliding groove reduces the friction between the first connecting piece 701 and the inner pipe 1, so that the advancing of the oil gun pipe 7 is more smooth, and the energy loss during the advancing process is reduced. At the same time, the first connecting piece 701 in the ring structure has a larger contact area with the inner pipe 1, the connection is more stable, the advancing force can be better transmitted, and it is ensured that the oil gun pipe 7 can be reliably advanced and retreated.

[0033] Working principle: first, the inner pipe 1 is fixed in the mounting hole on one side of the boiler 10 through the flange 9, one end of the outer pipe 2 is connected with the flange 9, and the inner pipe 1 and the outer pipe 2 are coaxially arranged in the air duct 11, and the inner support ring 4 between the inner pipe and the outer pipe and the inclined pull rod 201 on both sides of the outer pipe 2 cooperate to maintain the stability of the structure. Avoid bending to affect the advancing action of the oil gun pipe 7 and the ignition gun pipe 8. The oil gun advancing cylinder 601 and the ignition gun advancing cylinder 602 on the equipment connecting pipe 6 are connected with the oil gun pipe 7 and the ignition gun pipe 8 through the first connecting piece 701 and the second connecting piece 801 respectively. Start the cylinder, the piston rod extends and retracts to drive the oil gun pipe 7 and the ignition gun pipe 8 to slide in the corresponding installation channel 101 of the inner pipe 1, so as to adjust the ignition position of the two in the boiler 10. In the ash leakage prevention connecting structure 5 between the inner pipe 1 and the equipment connecting pipe 6, when the first connecting part 501 and the second connecting part 502 are fastened by the first connecting fastener 507 and the annular cover plate 508 is pressed tightly by the second connecting fastener 509, the first filling packing 505 in the first annular sealing groove 503 and the second filling packing 506 in the second annular sealing groove 504 are deformed by extrusion, realizing reliable radial sealing, effectively preventing dust leakage in the boiler, ensuring stable operation of the device, achieving the functions of free advancing and retreating of the oil gun and the ignition gun in the boiler and stable ignition.

[0034] It should be noted that the specific model and specification of the oil gun advancing cylinder 601, the ignition gun advancing cylinder 602, the oil gun pipe 7 and the ignition gun pipe 8 need to be selected and determined according to the actual specification of the device, and the specific selection and calculation method adopts the existing technology in the art, so it will not be described in detail.

[0035] The power supply of the oil gun propelling cylinder 601, the ignition gun propelling cylinder 602, the oil gun tube 7 and the ignition gun tube 8 and its principle are clear to those skilled in the art, and will not be described in detail here.

[0036] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A freely retractable oil gun mounting device characterized by comprising: The utility model provides an oil gun and ignition gun installation structure of boiler, including inner tube, the inner tube is fixedly installed in the installation hole of boiler one side surface through flange, one side surface of flange is fixedly connected with the one end of outer tube, the outer tube is located inside boiler and is coaxial with the outer tube and is arranged in the air duct that is located inside boiler, and the gap is equipped between the inner wall of outer tube and the outer wall of inner tube, a plurality of inner support rings that are evenly distributed along the extension direction of outer tube are fixedly connected on the inner wall of outer tube, the inner diameter of each inner support ring is consistent with the outer diameter of inner tube, two oblique pull rods that are up and down distribution are arranged on the both sides of outer tube, and the both ends of each oblique pull rod are connected with the outer wall of outer tube and the inner wall of boiler respectively, two independent installation channels are arranged in the inner tube along the extension direction of inner tube, and oil gun pipe and ignition gun pipe are slidably connected in each installation channel respectively, and the one end of inner tube between the equipment connecting pipe one end of combustor and the anti dust connection structure of detachable connection.

2. The freely retractable oil gun mounting device of claim 1, wherein: The both ends of each oblique pull rod are detachably connected with the outer wall of outer tube and the inner wall of boiler through fasteners.

3. The freely retractable oil gun mounting device of claim 1, wherein: The anti dust connection structure comprises a first connecting portion and a second connecting portion, the first connecting portion is arranged at one end of the inner tube, the second connecting portion is arranged at one end of the equipment connecting pipe, a plurality of corresponding assembly holes are formed on the surfaces of the first connecting portion and the second connecting portion, a first connecting fastener is arranged in each assembly hole, a first annular sealing groove is arranged on the side surface of the second connecting portion facing the first connecting portion, and a first packing ring is arranged in the first annular sealing groove.

4. The freely retractable oil gun mounting device of claim 3, wherein: A second annular sealing groove is formed on the side surface of the second connecting portion facing the equipment connecting pipe, a second packing ring is arranged in the second annular sealing groove, and an annular cover plate is arranged on one side of the second annular sealing groove, the annular cover plate is detachably connected with the second connecting portion through a second connecting fastener.

5. The free approach and retreat gun mounting device according to claim 1, characterized in that: The equipment connecting pipe is provided with a propulsion device for driving the oil gun pipe and the ignition gun pipe to slide and displace.

6. The free stroke oil gun mounting device as set forth in claim 5, wherein: The propulsion device comprises an oil gun propulsion cylinder and an ignition gun propulsion cylinder, the oil gun propulsion cylinder and the ignition gun propulsion cylinder are fixedly connected with the outer wall of the equipment connecting pipe through supports, and the piston rods of the oil gun propulsion cylinder and the ignition gun propulsion cylinder are fixedly connected with the oil gun pipe and the ignition gun pipe through first and second connecting members respectively.

7. The free-retracting oil gun mounting device of claim 6, wherein: The first connecting member is slidably sleeved outside the inner tube, the first connecting member has an annular structure as a whole, a sliding block is integrally arranged on the inner wall of the first connecting member, the sliding block is slidably connected in a sliding groove, the sliding groove is formed on the outer wall of the inner tube and is in communication with the installation channel corresponding to the oil gun pipe, and one end of the sliding block is fixedly connected with the outer wall of the oil gun pipe.

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