Adjustable pipeline connecting mechanism for nitrogen injection of waste heat boiler

Abstract

The invention relates to the technical field of waste heat boilers, and discloses an adjustable waste heat boiler nitrogen injection pipeline connecting mechanism which comprises a supporting plate, an electric push rod is fixedly connected to the upper surface of the supporting plate, a connecting shaft is fixedly connected to the extension end of the electric push rod, and a bearing plate is fixedly connected to the top end of the connecting shaft. The top of the bearing plate is provided with an extension pipe and a connecting pipe through a telescopic supporting assembly, the connecting pipe is in sliding connection with the extension pipe, an adjustable fixing assembly is arranged between the connecting pipe and the extension pipe, one end of the extension pipe is fixedly connected with a conical barrel, and the outer side of the conical barrel is sleeved with a mounting pipe; according to the device, replacement and fixation of the mounting pipes with different pipe diameters can be achieved, the length between the connecting pipe and the extension pipe can be adjusted, the bearing plate can be driven to ascend and descend through the electric push rod, and height adjustment of the device is achieved.

Description

Technical Field

[0001] This invention relates to the field of waste heat boiler technology, specifically to an adjustable waste heat boiler nitrogen injection pipeline connection mechanism. Background Technology

[0002] Nitrogen can be injected through pipelines to replace residual oxygen or combustible gases inside the boiler, eliminating the risk of explosion. Especially in high temperature and high pressure environments, nitrogen, as an inert gas, can isolate oxygen, prevent oxidation reactions from causing safety accidents, and maintain stable system pressure. In the process of nitrogen injection in waste heat boilers, a reliable delivery system is usually required to ensure the correct delivery and injection of nitrogen.

[0003] When injecting nitrogen into different waste heat boilers, the existing nitrogen injection pipelines are usually designed with fixed dimensions because the waste heat boilers have different sizes. This makes it difficult to effectively transport nitrogen to the installation pipes of waste heat boilers of different sizes, which can easily lead to low nitrogen delivery efficiency or difficulty in smooth connection. This not only affects the nitrogen injection effect, but also increases the complexity and time cost of operation. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an adjustable pipeline connection mechanism for nitrogen injection into waste heat boilers. The main purpose is to solve the problem that during nitrogen injection into waste heat boilers, a reliable delivery system is typically required to ensure correct nitrogen delivery and injection. However, when injecting nitrogen into different waste heat boilers, which have varying sizes, existing nitrogen injection pipeline designs are usually fixed in size. This makes it difficult to effectively deliver nitrogen to installation pipes of different sizes of waste heat boilers, easily leading to low nitrogen delivery efficiency or difficulties in smooth connection. This not only affects the nitrogen injection effect but also increases the complexity and time cost of operation.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: An adjustable waste heat boiler nitrogen injection pipeline connection mechanism includes a support plate. An electric push rod is fixedly connected to the upper surface of the support plate. A connecting shaft is fixedly connected to the extended end of the electric push rod. A load-bearing plate is fixedly connected to the top of the connecting shaft. An extension pipe and a connecting pipe are installed on the top of the load-bearing plate through a telescopic support assembly, and the connecting pipe and the extension pipe are slidably connected. An adjustable fixing assembly is provided between the connecting pipe and the extension pipe. A tapered cylinder is fixedly connected to one end of the extension pipe. An installation pipe is sleeved on the outside of the tapered cylinder. A connecting ring is fixedly connected to the outside of the installation pipe. Connecting plates are detachably connected to both sides of the connecting ring by bolts. Grooves are provided on the connecting plates. Mounting brackets are fixedly connected to the top and bottom outer walls of the extension pipe. Threaded holes are provided on the mounting brackets, and locking bolts pass through the grooves and are threadedly connected to the threaded holes. The head of the locking bolts is in contact with the connecting plates.

[0006] Furthermore, the support assembly includes a fixing sleeve, which is fixed to the upper surface of the load-bearing plate by bolts. A fixing plate is fixedly connected to one end of the fixing sleeve, and the fixing plate is fixed to the connecting pipe. A sliding groove is provided inside the fixing sleeve, and a sliding plate is movably connected in the sliding groove. A mounting plate is fixedly connected to one end of the sliding plate, and the mounting plate is fixed to the extension pipe.

[0007] Based on the aforementioned solution, the fixing component includes a fixing block, which is fixed to the top outer wall of the extension tube by bolts. A threaded rod is movably connected to one side of the fixing block, and the threaded rod is threadedly connected to the fixing plate. A locking nut is movably connected to the part of the threaded rod that extends out of the fixing plate, and the locking nut is in pressing contact with the fixing plate. A guide rod is fixedly connected to one side of the fixing block, and the guide rod is slidably connected to the fixing plate.

[0008] As a further embodiment of the present invention, a sealing sleeve is fixedly connected to one end of the extension tube, and the sealing sleeve is in contact with the connecting tube; a sealing gasket is fixedly connected to the inner wall of one end of the mounting tube, and the sealing gasket is in contact with the conical cylinder.

[0009] Furthermore, an ultrasonic detector is fixedly connected to the top of the fixed sleeve, and the detection end of the ultrasonic detector is in contact with the extension tube.

[0010] Based on the aforementioned scheme, multiple telescopic columns are fixedly connected to the upper surface of the support plate, and the extended ends of the multiple telescopic columns are fixed to the load-bearing plate.

[0011] As a further embodiment of the present invention, the bottom of the support plate is fixedly connected with multiple casters, and the multiple casters are symmetrically distributed.

[0012] Furthermore, one end of the connecting pipe passes through the fixing plate and is connected to a fixing pipe, and one end of the fixing pipe is connected to a corrugated pipe.

[0013] Based on the aforementioned scheme, the mounting plate is provided with a clearance groove, and one of the connecting plates located at the bottom of the connecting ring can pass through the clearance groove.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides an adjustable pipeline connection mechanism for nitrogen injection in a waste heat boiler, which has the following advantages: 1. The installation pipe in this invention has multiple diameter sizes, and different diameter connecting rings are adapted and fixed on the installation pipes of different diameters. When replacing, the installation pipe and the connecting ring connected to it are replaced as a whole. Through the cooperation of the tapered cylinder and the locking bolt, the installation pipes of different diameters can be replaced and fixed, which improves the compatibility of the device with nitrogen delivery pipelines of different diameters and reduces the cumbersome process of replacing the entire connection mechanism due to different pipe diameters.

[0015] 2. The present invention has an adjustable fixing component between the connecting pipe and the extension pipe. Rotating the threaded rod allows the extension pipe and the connecting pipe to move relative to each other, adjusting the length formed by the two. The length after extension and retraction is then fixed by locking the nut. This design allows the pipe connection mechanism to flexibly adjust the total length of the pipe according to the actual use scenario, so as to meet the nitrogen transmission requirements of different distances and avoid installation difficulties caused by unsuitable pipe length.

[0016] 3. This invention uses an electric push rod to drive the load-bearing plate to lift and lower, thereby achieving height adjustment of the device. This allows the pipe connection mechanism to adapt to nitrogen injection requirements at different heights, improving its flexibility in different installation scenarios. It eliminates the need to customize pipes of specific heights for connection requirements at different heights, saving costs and installation time.

[0017] 4. In this invention, an ultrasonic detector is installed on the top of the fixed sleeve, and the detector moves with the fixed sleeve. This allows for real-time monitoring of the pipeline's sealing or structural condition, which helps to detect potential leaks or structural damage in the pipeline in a timely manner. This facilitates early repair measures and avoids production interruptions or safety accidents caused by pipeline failures, thereby improving the reliability and stability of the entire nitrogen injection system.

[0018] 5. In this invention, the connection between the extension pipe and the connecting pipe is sealed with a sealing sleeve, and the installation pipe and the conical cylinder are connected with a sealing gasket, which enhances the sealing performance of the pipeline, avoids leakage of nitrogen gas, and further ensures the safety of the working environment, preventing safety problems that may be caused by nitrogen gas leakage. Attached Figure Description

[0019] Figure 1 This is a front three-dimensional structural diagram of a pipeline connection mechanism for nitrogen injection in an adjustable waste heat boiler proposed in this invention. Figure 2This is a three-dimensional structural diagram of the rear side of an adjustable waste heat boiler nitrogen injection pipeline connection mechanism proposed in this invention. Figure 3 This is a bottom view of the pipe connection mechanism for nitrogen injection in an adjustable waste heat boiler proposed in this invention. Figure 4 This is a partial cross-sectional view of a pipeline connection mechanism for nitrogen injection in an adjustable waste heat boiler, as proposed in this invention. Figure 5 This is a partially unfolded structural diagram of a pipeline connection mechanism for nitrogen injection in an adjustable waste heat boiler proposed in this invention.

[0020] In the diagram: 1. Connecting pipe; 2. Sealing sleeve; 3. Extension pipe; 4. Conical cylinder; 5. Mounting pipe; 6. Corrugated pipe; 7. Fixing pipe; 8. Fixing block; 9. Threaded rod; 10. Guide rod; 11. Fixing plate; 12. Locking nut; 13. Load-bearing plate; 14. Fixing sleeve; 15. Ultrasonic detector; 16. Slide plate; 17. Mounting plate; 18. Sealing gasket; 19. Alternating groove; 20. Telescopic column; 21. Caster wheel; 22. Electric push rod; 23. Connecting shaft; 24. Locking bolt; 25. Threaded hole; 26. Connecting plate; 27. Groove; 28. Connecting ring; 29. ​​Mounting bracket; 30. Slide groove; 31. Support plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Reference Figures 1-5 An adjustable waste heat boiler nitrogen injection pipeline connection mechanism includes a support plate 31. An electric push rod 22 is bolted to the upper surface of the support plate 31. A connecting shaft 23 is bolted to the extended end of the electric push rod 22. A load-bearing plate 13 is bolted to the top of the connecting shaft 23. An extension pipe 3 and a connecting pipe 1 are installed on the top of the load-bearing plate 13 through a telescopic support assembly. The connecting pipe 1 and the extension pipe 3 are slidably connected. The load-bearing plate 13 is driven to rise and fall by the electric push rod 22 to realize the height adjustment of the device. The support assembly includes a fixing sleeve 14. The fixing sleeve 14 is bolted to the upper surface of the load-bearing plate 13. A fixing plate 11 is bolted to one end of the fixing sleeve 14 and is fixed to the connecting pipe 1. A sliding groove 30 is opened inside the fixing sleeve 14. A sliding plate 16 is slidably connected in the sliding groove 30. An mounting plate 17 is bolted to one end of the sliding plate 16 and is fixed to the extension pipe 3.

[0023] In this invention, an adjustable fixing assembly is provided between the connecting pipe 1 and the extension pipe 3. The fixing assembly includes a fixing block 8, which is fixed to the top outer wall of the extension pipe 3 by bolts. A threaded rod 9 is rotatably connected to one side of the fixing block 8, and the threaded rod 9 is threadedly connected to the fixing plate 11. Rotating the threaded rod 9 causes relative movement between the extension pipe 3 and the connecting pipe 1, thereby adjusting the length formed by the two. A locking nut 12 is threadedly connected to the part of the threaded rod 9 that extends out of the fixing plate 11, and the locking nut 12 is in contact with the fixing plate 11. The locking nut 12 fixes the length between the extended pipe 3 and the connecting pipe 1 after extension and retraction. A guide rod 10 is fixed to one side of the fixing block 8 by bolts, and the guide rod 10 is slidably connected to the fixing plate 11. The guide rod 10 can guide the fixing block 8 or the fixing plate 11.

[0024] It should be noted that a tapered cylinder 4 is welded to one end of the extension pipe 3, and an installation pipe 5 is sleeved on the outside of the tapered cylinder 4. The installation pipe 5 is connected to the external waste heat boiler system. According to the inclined surface size of the tapered cylinder 4, a connecting ring 28 is welded to the outside of the installation pipe 5. Both sides of the connecting ring 28 are detachably connected to the connecting plate 26 by bolts. The installation pipe 5 has multiple diameter sizes, and different diameter connecting rings 28 are fitted and fixed on the installation pipe 5. When replacing, the installation pipe 5 and the connecting ring 28 connected to it are replaced as a whole. The connecting plate 26 has a groove 27. The top and bottom outer walls of the extension pipe 3 are fixed with mounting brackets 29 by bolts. The mounting brackets 29 have threaded holes 25, and the locking bolts 24 pass through the grooves 27 and are threaded into the threaded holes 25. The screw head of the locking bolts 24 is pressed into contact with the connecting plate 26. The length between the extension pipe 3 and the connecting pipe 1 is fixed by the setting of the locking bolts 24.

[0025] Specifically, a sealing sleeve 2 is bonded to one end of the extension tube 3, and the sealing sleeve 2 contacts the connecting tube 1. The sealing sleeve 2 seals the connection between the extension tube 3 and the connecting tube 1. A sealing gasket 18 is bonded to the inner wall of one end of the mounting tube 5, and the sealing gasket 18 contacts the conical cylinder 4, making the connection between the mounting tube 5 and the conical cylinder 4 tighter and preventing the introduced nitrogen gas from easily leaking. An ultrasonic detector 15 is fixed to the top of the fixing sleeve 14 by bolts, and the detection end of the ultrasonic detector 15 contacts the outer wall of the extension tube 3. The movement of the fixing sleeve 14 causes the ultrasonic detector 15 to move with it. The ultrasonic detector 15 is a SAIPUS model. U4100 monitors the sealing or structural status of pipelines in real time. Multiple telescopic columns 20 are fixed to the upper surface of the support plate 31 by bolts, and the extended ends of the multiple telescopic columns 20 are fixed to the load-bearing plate 13. The telescopic columns 20 assist in bearing the load and guide the load-bearing plate 13 to prevent tilting during the up-and-down movement of the load-bearing plate 13. Multiple casters 21 are fixed to the bottom of the support plate 31 by bolts, and the multiple casters 21 are symmetrically distributed. Two of the casters 21 are self-locking. The casters 21 are used for the movement and auxiliary fixation of the entire device. One end of the connecting pipe 1 passes through the fixing plate 11 and is connected to the fixing pipe 7. One end of the fixing pipe 7 is connected to the corrugated pipe 6. The device is connected to the external nitrogen supply equipment through the corrugated pipe 6. The mounting plate 17 has a clearance groove 19, and a connecting plate 26 located at the bottom of the connecting ring 28 can pass through the clearance groove 19.

[0026] Working principle of this embodiment: When it is necessary to replace the mounting pipe 5 with one of a different diameter, unscrew the locking bolt 24, remove the old mounting pipe 5, including the connecting ring 28 and the connecting plate 26. Since the connecting ring 28 and the connecting plate 26 are detachably connected by bolts, remove the bolts on the connecting ring 28 and the connecting plate 26 to separate them. Select the new mounting pipe 5 and matching connecting ring 28 according to the target pipe diameter, and reinstall the two disassembled connecting plates 26 onto the connecting ring 28 using bolts. Then, fit the mounting pipe 5 into the tapered cylinder 4 and press it laterally. At the same time, the connecting plate 26 enters the groove at the top of the mounting bracket 29. Tighten the locking bolt 24 into the threaded hole 25 to fix it. When it is necessary to adjust the length between the extension pipe 3 and the connecting pipe 1, loosen the locking nut 12, rotate the threaded rod 9 to allow the connecting pipe 1 and the extension pipe 3 to slide and extend to the target length, and then tighten the locking nut 12 to lock it.

[0027] When the height of the device needs to be adjusted, the electric push rod 22 is activated, and its extended end pushes the load-bearing plate 13 up and down through the connecting shaft 23. The telescopic column 20 provides auxiliary guidance, thereby moving the load-bearing plate 13 and the components connected to its top up as a whole up and down until the pipe is adjusted to the required height.

[0028] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0029] In the description herein, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections, mechanical connections, electrical connections, or direct connections. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0030] In the description herein, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable waste heat boiler nitrogen injection pipeline connection mechanism, comprising a support plate (31), characterized in that, An electric push rod (22) is fixedly connected to the upper surface of the support plate (31). A connecting shaft (23) is fixedly connected to the extended end of the electric push rod (22). A load-bearing plate (13) is fixedly connected to the top of the connecting shaft (23). An extension tube (3) and a connecting tube (1) are installed on the top of the load-bearing plate (13) through a telescopic support assembly. The connecting tube (1) and the extension tube (3) are slidably connected. An adjustable fixing assembly is provided between the connecting tube (1) and the extension tube (3). A conical cylinder (4) is fixedly connected to one end of the extension tube (3). An installation tube (5) is sleeved on the outside of the extension tube (3). A connecting ring (28) is fixedly connected to the outside of the installation tube (5). A connecting plate (26) is detachably connected to both sides of the connecting ring (28) by bolts. A groove (27) is provided on the connecting plate (26). An installation bracket (29) is fixedly connected to the top outer wall and the bottom outer wall of the extension tube (3). A threaded hole (25) is provided on the installation bracket (29). A locking bolt (24) passes through the groove (27) and is threadedly connected to the threaded hole (25). The head of the locking bolt (24) is pressed against the connecting plate (26).

2. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 1, characterized in that, The support assembly includes a fixing sleeve (14), which is fixed to the upper surface of the load-bearing plate (13) by bolts. A fixing plate (11) is fixedly connected to one end of the fixing sleeve (14), and the fixing plate (11) is fixed to the connecting pipe (1). A sliding groove (30) is provided inside the fixing sleeve (14), and a sliding plate (16) is movably connected in the sliding groove (30). A mounting plate (17) is fixedly connected to one end of the sliding plate (16), and the mounting plate (17) is fixed to the extension pipe (3).

3. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 1, characterized in that, The fixing component includes a fixing block (8), which is fixed to the top outer wall of the extension tube (3) by bolts. A threaded rod (9) is movably connected to one side of the fixing block (8), and the threaded rod (9) is threadedly connected to the fixing plate (11). A locking nut (12) is movably connected to the part of the threaded rod (9) that extends out of the fixing plate (11), and the locking nut (12) is pressed against the fixing plate (11). A guide rod (10) is fixedly connected to one side of the fixing block (8), and the guide rod (10) is slidably connected to the fixing plate (11).

4. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 3, characterized in that, One end of the extension tube (3) is fixedly connected to a sealing sleeve (2), and the sealing sleeve (2) is in contact with the connecting tube (1). One end of the installation tube (5) is fixedly connected to a sealing gasket (18), and the sealing gasket (18) is in contact with the conical cylinder (4).

5. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 1, characterized in that, An ultrasonic detector (15) is fixedly connected to the top of the fixed sleeve (14), and the detection end of the ultrasonic detector (15) is in contact with the extension tube (3).

6. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 2, characterized in that, The upper surface of the support plate (31) is fixedly connected with a plurality of telescopic columns (20), and the extended ends of the plurality of telescopic columns (20) are fixed to the load-bearing plate (13).

7. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 1, characterized in that, The bottom of the support plate (31) is fixedly connected to multiple casters (21), and the multiple casters (21) are symmetrically distributed.

8. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 1, characterized in that, One end of the connecting pipe (1) passes through the fixing plate (11) and is connected to the fixing pipe (7), and one end of the fixing pipe (7) is connected to the corrugated pipe (6).

9. The adjustable waste heat boiler nitrogen injection pipeline connection mechanism according to claim 1, characterized in that, The mounting plate (17) has a clearance groove (19), and one of the connecting plates (26) located at the bottom of the connecting ring (28) can pass through the clearance groove (19).

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