A disassembly device for a sealing structure of a high-pressure vessel

Abstract

The present invention discloses a disassembly device for a sealing structure of a high-pressure vessel, which includes a thread pressing ring disassembly device and a sealing head disassembly device. The thread pressing ring disassembly device includes a support disk, steel ball rollers and an oil cylinder arranged on the support disk, and an annular weighing sensor is arranged between the oil cylinder and the support disk; the sealing head disassembly device is installed on the thread pressing ring and includes a support plate and a fixing plate connected through a slewing bearing and a bearing bolt connected to the fixing plate through a threaded sleeve, and the support plate is used for fixing with the thread pressing ring. In the present invention, the support disk and the oil cylinder provide a supporting force for the thread pressing ring to avoid damaging the cylinder thread during its disassembly process; the bearing bolt is connected to the sealing head, and the threaded sleeve is driven to rotate by the fixing plate to realize the up and down movement of the bearing bolt and the sealing head. The structure of the present invention is simple and convenient to use, can realize automatic control, there is no offloading situation, effectively seals the damage of the thread or the sealing surface, and improves the disassembly efficiency of the sealing structure.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure vessels, and particularly relates to a disassembly device for a sealing structure of a high-pressure vessel. Background Art

[0002] In fields such as the chemical industry, petrochemical industry, powder metallurgy, and new food sterilization, a pressure exceeding 100 MPa is called "ultra-high pressure", and a pressure vessel bearing a pressure above 100 MPa is called an ultra-high pressure vessel. The sealing structure of a high-pressure vessel generally includes a cylinder body, a sealing head, and a threaded compression ring. A stepped hole is provided inside the cylinder body, and the lower end of the sealing head is located inside the stepped hole. Threads adapted to the threaded compression ring are provided on the cylinder body, and the cylinder body is threadedly connected to the threaded compression ring. A hole is provided in the middle of the threaded compression ring for the sealing head to pass through, and the lower end surface of the threaded compression ring presses on the stepped surface of the sealing head.

[0003] During the use of an ultra-high pressure vessel, before and after each test, it is necessary to rotate the threaded compression ring and disassemble and assemble the sealing head in order to put the test piece into or take it out of the vessel. Usually, an electric push rod is used to drive the rotation of the threaded compression ring (as shown in Figure 1 ), and then a T-shaped frame (as shown in Figure 2 ) or a portal frame (as shown in Figure 3 ) is used in cooperation with a jack to take out or press the sealing head into the vessel.

[0004] However, since the self-weight of the threaded compression ring is large and is entirely borne by the threads of the cylinder body, when using a push rod to drive the rotation of the threaded compression ring, a traveling crane needs to be used in cooperation, and the pulling force of the traveling crane sling is not easy to control, making the operation inconvenient.

[0005] When installing the sealing head, according to the method shown in Figure 2 , it is necessary to manually press the sealing head into the cylinder body to a certain depth and then use a portal frame and a jack to completely press the sealing head into the cylinder body. The connection stability between the portal frame and the spiral compression ring is poor, and there is an easy problem of eccentric load during the pressing process, resulting in scratches on the sealing surface; when disassembling the sealing head, according to the method shown in Figure 3 , after the T-shaped frame is screwed into the threaded hole of the sealing head, jacks need to be set on both sides of the T-shaped frame, and two people press the jacks simultaneously to take out the sealing head. During the taking-out process, the operator needs to constantly pay attention to the jacking amount of the two jacks on both sides. The operation is inconvenient, the taking-out operation efficiency is low, and there is also an easy problem of eccentric load of the sealing head.

[0006] In view of this, there is an urgent need for a disassembly device for a sealing structure of a high-pressure vessel to facilitate the disassembly and assembly of the sealing structure of the high-pressure vessel, improve the disassembly and assembly efficiency, and avoid problems such as wear of the cylinder body threads and damage to the sealing surface caused by eccentric load of the sealing head during the disassembly and assembly process. Summary of the Invention

[0007] In view of the above deficiencies, the object of the present invention is to provide a disassembly device for a high-pressure vessel sealing structure, so as to solve the problems of inconvenient disassembly of the existing high-pressure vessel sealing structure, easy wear of the cylinder thread during the disassembly process, and damage to the sealing surface caused by eccentric loading of the sealing sleeve.

[0008] A disassembly device for a high-pressure vessel sealing structure provided by the present invention includes:

[0009] A thread pressing ring disassembly device, including a support plate disposed on the outer circumferential surface of the cylinder body. A plurality of steel ball rollers are provided on the top surface of the support plate; a plurality of oil cylinders are provided on the bottom surface of the support plate. The output end of the oil cylinder is connected to the bottom surface of the support plate, and an annular load cell is provided between the output end of the oil cylinder and the bottom surface of the support plate.

[0010] A sealing head disassembly device is installed on the thread pressing ring and includes:

[0011] A support plate is disposed above the thread pressing ring. The thread pressing ring is provided with bolt holes, and fixing bolts for fixing with the thread pressing ring are provided on the support plate.

[0012] A fixing plate is disposed above the support plate and is used for connecting with a push rod; a thread sleeve is fixedly provided at the center of the fixing plate.

[0013] A slewing bearing is disposed between the support plate and the fixing plate. The support plate is fixedly connected to the outer ring of the slewing bearing, and the fixing plate is fixedly connected to the inner ring of the slewing bearing.

[0014] A load-bearing bolt is disposed through the centers of the fixing plate and the support plate. The load-bearing bolt is disposed within the thread sleeve, and the lower end of the load-bearing bolt is used for connecting with the sealing head thread hole of the sealing head.

[0015] An anti-rotation baffle is detachably disposed on the support plate and is used for restricting the rotation of the load-bearing bolt.

[0016] In the above technical solution, preferably, an oil cylinder base is provided at the lower end of the oil cylinder. The oil cylinder base includes a support and a fixing plate disposed on the top surface of the support. The fixing plate encloses an oil cylinder fixing groove, and the oil cylinder is disposed within the oil cylinder fixing groove.

[0017] In the above technical solution, preferably, a plurality of roller setting grooves are provided on the top surface of the support plate. The plurality of roller setting grooves are disposed on a circle concentric with the support plate; a disc spring is provided within the roller setting groove, and the steel ball roller is disposed within the roller setting groove.

[0018] In the above technical solution, preferably, the support disc is annular and includes two semi-annular support disc parts. Connecting ear plates are provided on the opposite ends where the two support disc parts are fastened together, and fastening bolt holes for installing fastening bolts are provided on the connecting ear plates.

[0019] In the above technical solution, preferably, a threaded compression ring limiting device is provided on the top surface of the support disc. The threaded compression ring limiting device includes:

[0020] A limiting part, which is arranged outside the circle where the steel ball rollers are located. A sliding groove is provided on the limiting part along the radial direction of the support disc, and the sliding groove runs through the limiting part; a locking bolt hole is provided on the top surface of the limiting part, and a locking bolt is arranged in the locking bolt hole;

[0021] A slider, which is arranged on the top surface of the support disc and slides along the sliding groove. The lower end of the locking bolt abuts against the top surface of the slider.

[0022] In the above technical solution, preferably, the oil cylinders are synchronous oil cylinders, and a plurality of the oil cylinders are connected to the same hydraulic pump station; a plurality of the oil cylinders are symmetrically arranged on the bottom surface of the support disc.

[0023] In the above technical solution, preferably, a plurality of push rod insertion piles are provided on the top surface of the fixed plate, and push rod insertion holes are provided on the push rod insertion piles along the radial direction of the fixed plate.

[0024] In the above technical solution, preferably, support columns are provided on the bottom surface of the support plate, and fixing bolt holes are provided through the support plate and the support columns. Fixing bolts are arranged in the fixing bolt holes.

[0025] In the above technical solution, preferably, a plurality of rib plates are provided on the bottom surface of the support plate. The rib plates are distributed along the radial direction of the support plate, and the height of the rib plates is adapted to the height of the support columns.

[0026] In the above technical solution, preferably, the anti-rotation baffle includes a baffle support plate and a baffle body. A support plate installation part adapted to the baffle support plate is provided on the support plate. The baffle body is arranged on the top surface of the baffle support plate, and an anti-rotation clamping groove is provided on the side surface of the baffle body. The shape and size of the anti-rotation clamping groove are adapted to the shape and size of the bearing bolt.

[0027] As can be seen from the above technical solution, the disassembly device for the high-pressure vessel sealing structure provided by the present invention is used for disassembling the high-pressure vessel sealing structure. Compared with the prior art, the present invention has the following beneficial effects:

[0028] First, the support plate and the oil cylinder of the thread pressing ring disassembly device provide effective support for the thread pressing ring. The thread pressing ring is rotatably arranged on the support plate through steel ball rollers, which facilitates the push rod to drive the thread pressing ring to rotate. The load of the support plate is detected in real time by the annular weighing sensor, which facilitates the automatic control of the support condition of the oil cylinder according to the load of the support plate.

[0029] Secondly, the support plate of the seal head disassembly device is fixed on the thread pressing ring. The fixed plate rotatably connected to the support plate drives the thread sleeve to rotate, so that the bearing bolt connected to the thread sleeve moves up and down, driving the seal head to move up and down, realizing the disassembly and assembly of the seal head. The fixed plate can be connected to the push rod, and the push rod is driven by the motor to realize the automatic disassembly and assembly of the seal head, greatly reducing the difficulty of the disassembly and assembly of the seal head, simplifying the disassembly steps of the seal head, and at the same time avoiding eccentric loading and scratching the sealing surface, prolonging the service life of the seal plug. Brief Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce and explain the drawings required for the description of the embodiments of the present invention or the prior art. Obviously, the drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a construction schematic diagram of an electric push rod driving the thread pressing ring to rotate;

[0032] Figure 2 It is a construction schematic diagram of using a gantry to press the seal plug into the cylinder body;

[0033] Figure 3 It is a construction schematic diagram of using a T-shaped frame to remove the seal plug from the cylinder body;

[0034] Figure 4 It is a side view of the thread pressing ring disassembly device in the present invention;

[0035] Figure 5 It is a side view of the thread pressing ring disassembly device in the present invention from another angle;

[0036] Figure 6 In the present invention Figure 5 The enlarged schematic diagram of part A;

[0037] Figure 7 It is a top view of the thread pressing ring disassembly device in the present invention;

[0038] Figure 8 It is a side view of the seal head disassembly device in the present invention;

[0039] Figure 9 This is the working schematic diagram of the thread pressing ring disassembly device in the present invention;

[0040] Figure 10 This is the working schematic diagram of the sealing head disassembly device in the present invention.

[0041] Figure 1-10 In the following, the corresponding relationships of the components are as follows:

[0042] Thread pressing ring disassembly device 1, sealing head disassembly device 2, cylinder body 3, thread pressing ring 4, sealing head 5.

[0043] Support plate 11, steel ball roller 12, oil cylinder 13, annular weighing sensor 14, support 15, fixing plate 16, disc spring 17, thread pressing ring limiting device 18,

[0044] Roller setting groove 111, connecting ear plate 112,

[0045] Limiting part 181, slider 182, sliding groove 183, locking bolt 184,

[0046] Support plate 21, fixing plate 22, fixed bearing 23, bearing bolt 24, anti-rotation baffle 25, threaded sleeve 26, push rod jacking pile 27, support column 28, rib plate 29,

[0047] Baffle support plate 251, baffle body 252,

[0048] Sealing head thread hole 51. Specific embodiments

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0050] The implementation principle of the present invention is as follows:

[0051] The oil cylinder provides a supporting force for the support plate. The thread pressing ring rotates and is provided with a steel ball roller on the top surface of the support plate, avoiding the thread of the cylinder body bearing the self-weight of the thread pressing ring during the disassembly and assembly process. The support plate is fixed to the thread pressing ring, and is connected and fixed to the sealing head through the bearing bolt. The bearing bolt is connected to the fixing plate through the threaded sleeve. The fixing plate is rotated by the push rod, so that the threaded sleeve cooperates with the bearing bolt to drive the sealing plug to move up and down, realizing the disassembly and assembly of the sealing plug.

[0052] The solution provided by the present invention can facilitate the disassembly and assembly of the threaded compression ring and the sealing head, and at the same time avoid damage to the threads or sealing surfaces caused by uneven loading problems during the disassembly and assembly of the threaded compression ring and the sealing head, thereby extending the service life of the sealing structure of the high-pressure vessel.

[0053] Specifically, the disassembly device for the sealing structure of the high-pressure vessel provided by the present invention includes:

[0054] The threaded compression ring disassembly device includes a support disk arranged on the outer circumferential surface of the cylinder body. A plurality of steel ball rollers are provided on the top surface of the support disk; a plurality of oil cylinders are provided on the bottom surface of the support disk. The plurality of oil cylinders are connected to the same hydraulic pump station. The output end of the oil cylinder is connected to the bottom surface of the support disk, and an annular weighing sensor is provided between the output end of the oil cylinder and the bottom surface of the support disk;

[0055] The sealing head disassembly device is installed on the threaded compression ring and includes:

[0056] A support plate is arranged above the threaded compression ring. The threaded compression ring is provided with bolt holes, and fixing bolts for fixing with the threaded compression ring are provided on the support plate;

[0057] A fixing plate is arranged above the support plate and is used for connecting with a push rod; a threaded sleeve is fixed at the center of the fixing plate;

[0058] A slewing bearing is arranged between the support plate and the fixing plate. The support plate is fixed to the outer ring of the slewing bearing, and the fixing plate is fixed to the inner ring of the slewing bearing;

[0059] A load-bearing bolt is arranged through the centers of the fixing plate and the support plate. The load-bearing bolt is arranged in the threaded sleeve, and the lower end of the load-bearing bolt is used for connecting with the sealing head threaded hole of the sealing head;

[0060] An anti-rotation baffle is detachably arranged on the support plate and is used to limit the rotation of the load-bearing bolt.

[0061] In order to make a clearer explanation and illustration of the technical solution and implementation manner of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0062] It should be noted that when an element is referred to as "fixed to" or "arranged on" another element, it can be directly on the other element or indirectly arranged on the other element; when an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0063] In addition, the terms in this text: "inner, outer", "front, back", "left, right", "vertical, horizontal", "top, bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application.

[0064] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0065] Specific Embodiment 1.

[0066] As Figure 4 、 Figure 5 and Figure 8 shown, the disassembly device for the high-pressure vessel sealing structure provided by the present invention includes a threaded compression ring disassembly device 1 and a sealing head disassembly device 2, which are used to disassemble the high-pressure vessel sealing structure. The high-pressure vessel sealing structure includes a cylinder body 3, a threaded compression ring 4, and a sealing head 5.

[0067] The threaded compression ring disassembly device 1 includes a support plate 11, which is arranged on the outer circumferential surface of the cylinder body 3. A plurality of steel ball rollers 12 are arranged on the top surface of the support plate 11. A plurality of oil cylinders 13 are arranged on the bottom surface of the support plate 11. The output end of the oil cylinder 13 is connected to the bottom surface of the support plate 11, and an annular weighing sensor 14 is arranged between the output end of the oil cylinder 13 and the bottom surface of the support plate 11.

[0068] The threaded compression ring 4 is supported by the support plate 11 to prevent the cylinder body 1 from bearing the self-weight of the threaded compression ring 4 during the process of the push rod pushing the threaded compression ring 4 to rotate, which may cause damage to the threads on the cylinder body 3. The annular weighing sensor 14 is used to detect the load-bearing of the support plate 11, which is convenient for adjusting the supporting force of the support plate 11 through the oil cylinder 13.

[0069] The sealing head disassembly device 2 is installed on the threaded compression ring 4 and is used to disassemble the sealing head 5. The sealing head disassembly device 2 includes a support plate 21, a fixing plate 22, a fixed bearing 23, a bearing bolt 24, and an anti-rotation baffle 25.

[0070] The support plate 21 is arranged above the threaded compression ring 4. The threaded compression ring 4 is provided with bolt holes 41. The support plate 21 is fixed to the threaded compression ring 4 through fixing bolts that cooperate with the bolt holes 21. The fixing plate 22 is arranged above the support plate 21 and is used to connect with the push rod. A threaded sleeve 26 is fixed at the center of the fixing plate 22.

[0071] The slewing bearing 23 is arranged between the support plate 21 and the fixed plate 22. The support plate 21 is fixed to the outer ring of the slewing bearing 23, and the fixed plate 22 is fixed to the inner ring of the slewing bearing 23. The load-bearing bolt 24 is arranged through the centers of the fixed plate 22 and the support plate 21. The load-bearing bolt 24 is arranged inside the threaded sleeve 26. The lower end of the load-bearing bolt 24 is used to connect with the sealing head threaded hole 51 of the sealing head 5. The anti-rotation baffle 25 is detachably arranged on the support plate 21 and is used to limit the rotation of the load-bearing bolt 24.

[0072] Specific Embodiment 2.

[0073] This Specific Embodiment 2 is a further optimization and improvement of the threaded retaining ring disassembly device in Specific Embodiment 1.

[0074] Please refer to Figure 5 and Figure 6 as well as Figure 7 , the Figure 5 is a side view of another angle of the threaded retaining ring disassembly device of this embodiment; the Figure 6 is an enlarged schematic view of the A position in Figure 5 of this embodiment; Figure 7 is a top view of the threaded retaining ring disassembly device.

[0075] The lower end of the oil cylinder 13 is provided with an oil cylinder base. The oil cylinder base includes a support 15 and a fixed plate 16 arranged on the top surface of the support 15. The fixed plate 16 encloses an oil cylinder fixing groove, and the oil cylinder 13 is arranged in the oil cylinder fixing groove to prevent the oil cylinder 13 from being damaged by impact or displaced during operation.

[0076] The oil cylinder 13 is a synchronous oil cylinder. A plurality of oil cylinders 13 are connected to the same hydraulic pump station, and the same oil cylinder pressure is output through the same hydraulic pump station, so as to ensure that the plurality of oil cylinders 13 push out the same height, thereby avoiding damage to the thread or sealing surface caused by eccentric load; the plurality of oil cylinders 13 are symmetrically arranged on the bottom surface of the support plate 11 to ensure the uniform distribution of the supporting force of the support plate 11 on the threaded retaining ring 4.

[0077] A plurality of roller setting grooves 111 are arranged on the top surface of the support plate 11. The plurality of roller setting grooves 111 are arranged on a circle concentric with the support plate 11. Disc springs 17 are arranged in the roller setting grooves 111, and steel ball rollers are arranged in the roller setting grooves.

[0078] The support plate 11 is annular and includes two semi-annular support plate parts. Connecting ear plates 112 are arranged on the opposite ends of the two support plate parts that are buckled together, and fastening bolt holes for installing fastening bolts are arranged on the connecting ear plates 112.

[0079] On the top surface of the support disk 11, there is a threaded pressing ring limiting device 18. The threaded pressing ring limiting device 18 includes a limiting part 181 and a slider 182. The limiting part 181 is arranged outside the circle where the steel ball roller 12 is located. On the limiting part 181, there is a chute 183 arranged along the radial direction of the support disk 11, and the chute 183 runs through the limiting part 181. On the top surface of the limiting part 181, there are locking bolt holes, and the locking bolt 184 is arranged in the locking bolt holes. The slider 182 is arranged on the top surface of the support disk and is slidably arranged along the chute. The lower end of the locking bolt 184 abuts against the top surface of the slider.

[0080] By sliding the slider 182, its end abuts against the threaded pressing ring 4, and the slider 182 is locked by the locking bolt 184. The threaded pressing ring 4 is limited by the slider 182 to keep it sliding on the steel ball roller 12, avoiding the position deviation of the threaded pressing ring 4 and jamming.

[0081] Specific embodiment 3.

[0082] This specific embodiment 2 is a further optimization and improvement of the seal head disassembly device on the basis of specific embodiment 1.

[0083] Please refer to Figure 8 , the Figure 8 is a side view of the seal head disassembly device described in this embodiment.

[0084] On the top surface of the fixed plate 22, there are multiple push rod jacking piles 27. On the push rod jacking piles 27, there are push rod jacks arranged along the radial direction of the fixed plate 22, which is convenient for the electric push rod to be inserted into the push rod jacks to drive the fixed plate 22 to rotate.

[0085] On the bottom surface of the support plate 21, there are support columns 28. On the support plate 21, there are fixed bolt holes running through the support plate 21 and the support columns 28, and the fixed bolts are arranged in the fixed bolt holes. On the bottom surface of the support plate 21, there are multiple rib plates 29. The rib plates 29 are distributed along the radial direction of the support plate 21. The height of the rib plates 29 is adapted to the height of the support columns 21. The support plate 21 is supported at a certain height by the rib plates 29 and the support columns 28 to avoid friction between the support plate 21 and the threaded pressing ring 4.

[0086] The anti-rotation baffle 25 includes a baffle support plate 251 and a baffle body 252. On the support plate 21, there is a support plate installation part adapted to the baffle support plate 251. The baffle body 252 is arranged on the top surface of the baffle support plate 251. On the side surface of the baffle body 252, there is an anti-rotation bayonet, and the shape and size of the anti-rotation bayonet are adapted to the shape and size of the bearing bolt 24.

[0087] The usage method of the present invention is as follows:

[0088] AsFigure 9 As shown in the figure, the support disk part is installed on the outer circumferential surface of the cylinder body 1, and the support disk 11 is sleeved on the cylinder body 1 through bolts and connecting ear plates 112. The threaded compression ring 4 is placed on the steel ball roller 12, and the threaded compression ring 4 is pushed to a proper position through the slider 182, and the slider 182 is locked by the locking bolt 184, so that the threaded compression ring 4 rolls on the steel ball roller 12 to avoid jamming of the threaded compression ring 4.

[0089] The threaded compression ring 4 is rotated by the electric push rod. At the same time, according to the feedback of the annular weighing sensor 14, the jacking speed of the oil cylinder 13 is controlled, so that the reading of the annular weighing sensor 14 is within a certain range to protect the external thread of the cylinder body 3 and the internal thread of the threaded compression ring 4.

[0090] Now assume that the speed of the electric push rod is V1, the rotation radius of the push rod is R, the pitch of the threaded compression ring is P, the jacking speed of the oil cylinder is V2, and the time is t. Then there is

[0091]

[0092] After simplification

[0093]

[0094] When installing the threaded compression ring disassembly device 1, the disc spring 17 is pre-compressed, and according to the force condition of the thread, the reading of the annular weighing sensor 14 is displayed to a proper value. When the threaded compression ring 4 is rotated upward and the reading of the annular weighing sensor 14 is lower than the lower limit value, the oil cylinder 13 is jacked up, and the speed is determined according to the above formula, so that the reading of the weighing sensor is kept within a certain range; when the threaded compression ring 4 is rotated downward and the reading of the annular weighing sensor 14 is higher than the upper limit value, the oil cylinder 13 retracts, and the speed is determined according to the above formula, so that the reading of the annular weighing sensor 14 is kept within a certain range, thereby controlling the thread force and protecting the thread.

[0095] As Figure 10 shown, the working process of the threaded compression ring disassembly device 1 is as follows: First, the bearing bolt 24 is screwed into the threaded sleeve 26, the seal head disassembly device 2 is placed on the threaded compression ring 4, the threaded hole on the top surface of the centering seal head 5 is aligned, and by adjusting the position and rotating the inner ring of the slewing bearing 23, the bearing bolt 24 is screwed into the threaded hole of the seal head 5, and the anti-rotation baffle 25 is installed to fix the bearing bolt 24.

[0096] Press the sealing head: Connect the sealing head disassembly device 2 and the sealing head 5 together through the load-bearing bolt 24, hoist the whole to the opening of the cylinder body, and place it into the cylinder body 1. Drive the fixed plate 22 to rotate counterclockwise through the electric push rod, so that the threaded sleeve 26 rotates counterclockwise, and there is a tendency for the threaded sleeve 26 to "lock" with the load-bearing bolt 24. Since the load-bearing bolt 24 is blocked by the anti-rotation baffle 25 and does not rotate, at this time, the load-bearing bolt 24 moves downward with the rotation of the threaded sleeve 26, and presses the sealing head 5 into the cylinder body 1.

[0097] Remove the upper sealing head: Drive the fixed plate 22 to rotate clockwise through the electric push rod, the threaded sleeve 26 rotates clockwise, and there is a tendency for the threaded sleeve 26 to "loosen" with the load-bearing bolt 24. Since the load-bearing bolt 24 is blocked by the anti-rotation baffle 25 and does not rotate, at this time, the load-bearing bolt 24 moves upward with the rotation of the threaded sleeve 26, and takes out the sealing head 5 from the cylinder body 1. After the sealing surface of the sealing head 5 and the cylinder body 3 is separated, loosen the fixing bolts on the support plate 21, and hoist the sealing head disassembly device 2 and the sealing head as a whole to a safe area for placement.

[0098] Compared with the prior art, the disassembly device of the high-pressure vessel sealing structure provided by the present invention has the following advantages:

[0099] (1) The structure is simple and easy to use. The annular load sensor is used to detect the load of the support plate in real time, and through the adjustment of the bearing force of the oil cylinder, the eccentric load during the rotation of the sealing head thread is avoided, and the damage of the cylinder thread is caused;

[0100] (2) The same set of sealing head disassembly device is used to disassemble the sealing head, and there is no need to prepare a variety of tools, which reduces the cost of sealing head disassembly; the support plate of the sealing head disassembly device is fixedly connected with the threaded pressing ring, which improves the stability of the sealing head disassembly device; the fixed plate can be rotated by the push rod connected with the motor, which can realize the automation of the sealing head disassembly device, greatly reducing the labor consumption of sealing head disassembly and improving the disassembly and assembly efficiency of the sealing structure.

[0101] Finally, it should also be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions that can be implemented in this application. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in this application can cover.

[0102] The terms "comprises," "includes," or any other variations thereof used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the sentence "comprises a ..." does not exclude the presence of additional identical elements in the process, method, article, or device that includes the element.

[0103] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

Claims

1. A disassembly device for a sealing structure of a high-pressure vessel, characterized in that, Comprising: A threaded compression ring disassembly device, including a support disk, which is arranged on the outer circumferential surface of the cylinder body. A plurality of steel ball rollers are arranged on the top surface of the support disk; a plurality of oil cylinders are arranged on the bottom surface of the support disk. The output end of the oil cylinder is connected to the bottom surface of the support disk, and an annular load cell is arranged between the output end of the oil cylinder and the bottom surface of the support disk; A seal head disassembly device, which is installed on the threaded compression ring and includes: A support plate, which is arranged above the threaded compression ring. The threaded compression ring is provided with bolt holes, and fixing bolts for fixing with the threaded compression ring are arranged on the support plate; A fixing plate, which is arranged above the support plate and is used for connecting with a push rod; a threaded sleeve is fixed at the center of the fixing plate; A slewing bearing, which is arranged between the support plate and the fixing plate. The support plate is fixed to the outer ring of the slewing bearing, and the fixing plate is fixed to the inner ring of the slewing bearing; A load-bearing bolt, which is arranged through the centers of the fixing plate and the support plate. The load-bearing bolt is arranged in the threaded sleeve, and the lower end of the load-bearing bolt is used for connecting with the seal head threaded hole of the seal head; An anti-rotation baffle, which is detachably arranged on the support plate and is used for restricting the rotation of the load-bearing bolt; A threaded compression ring limiting device is arranged on the top surface of the support disk. The threaded compression ring limiting device includes: A limiting part, which is arranged outside the circle where the steel ball rollers are located. A chute is arranged on the limiting part along the radial direction of the support disk, and the chute runs through the limiting part; a locking bolt hole is arranged on the top surface of the limiting part, and a locking bolt is arranged in the locking bolt hole; A slider, which is arranged on the top surface of the support disk and slides along the chute. The lower end of the locking bolt abuts against the top surface of the slider.

2. The disassembling device for the high-pressure vessel sealing structure according to claim 1, characterized in that The lower end of the oil cylinder is provided with an oil cylinder base, and the oil cylinder base includes a support and a fixing plate arranged on the top surface of the support. The fixing plate encloses an oil cylinder fixing groove, and the oil cylinder is arranged in the oil cylinder fixing groove.

3. The disassembling device for the high-pressure vessel sealing structure according to claim 1, characterized in that A plurality of roller setting grooves are arranged on the top surface of the support disk, and the plurality of roller setting grooves are arranged on a circle concentric with the support disk; a disc spring is arranged in the roller setting groove, and the steel ball roller is arranged in the roller setting groove.

4. The disassembling device for the high-pressure vessel sealing structure according to claim 3, characterized in that, The support disk is annular and includes two semi-annular support disk parts. Connecting ear plates are arranged on the opposite ends where the two support disk parts are buckled, and fastening bolt holes for installing fastening bolts are arranged on the connecting ear plates.

5. The disassembling device for the high-pressure vessel sealing structure according to claim 1, characterized in that, The oil cylinders are synchronous oil cylinders, and the plurality of oil cylinders are connected to the same hydraulic pump station; the plurality of oil cylinders are symmetrically arranged on the bottom surface of the support disk.

6. The disassembling device for the high-pressure vessel sealing structure according to claim 1, characterized in that, A plurality of push rod jacking piles are arranged on the top surface of the fixing plate, and push rod jacks are arranged on the push rod jacking piles along the radial direction of the fixing plate.

7. The disassembling device for the high-pressure vessel sealing structure according to claim 1, characterized in that, Support columns are arranged on the bottom surface of the support plate. Fixing bolt holes are arranged on the support plate and run through the support plate and the support columns, and the fixing bolts are arranged in the fixing bolt holes.

8. The disassembling device for the high-pressure vessel sealing structure according to claim 7, characterized in that, A plurality of rib plates are arranged on the bottom surface of the support plate, and the rib plates are distributed along the radial direction of the support plate. The height of the rib plates is adapted to the height of the support columns.

9. The disassembling device for the high-pressure vessel sealing structure according to claim 1, characterized in that The anti-rotation baffle includes a baffle support plate and a baffle body. A support plate installation part adapted to the baffle support plate is provided on the support plate. The baffle body is arranged on the top surface of the baffle support plate. An anti-rotation bayonet is provided on the side surface of the baffle body, and the shape and size of the anti-rotation bayonet are adapted to the shape and size of the bearing bolt.

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