Quick opening and closing device for sealing head of high-pressure container

Abstract

The utility model discloses a quick opening and closing device for a sealing head of a high-pressure container. The quick opening and closing device comprises a door-shaped frame, a hydraulic cylinder and a connecting frame, the door-shaped frame is fixedly installed above a cylinder body of the high-pressure container, the connecting frame is fixedly installed above a sealing head of the high-pressure container, and the connecting frame is located below the door-shaped frame; a cylinder body of the hydraulic cylinder is fixedly connected with the door-shaped frame, a telescopic rod of the hydraulic cylinder is fixedly connected with the connecting frame, and the sealing head is tightly pressed through extension of the hydraulic cylinder and is tightly lifted through contraction of the hydraulic cylinder. The opening and closing device is assembled and disassembled, the opening and closing device and the sealing head do not need to be disassembled, and operation is easy; the automation degree is high, in the sealing head disassembling and assembling process, personnel only need to operate stretching and retracting of the hydraulic cylinder, the operation level of the personnel is lowered, and disassembling can be completed without a large amount of experience; the labor cost is saved, the labor intensity is reduced, and the sealing head can be mounted and dismounted by a worker only by dismounting the fixing bolt and operating the crane lifting opening and closing device and the sealing head.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessels, in particular to a quick disassembly and assembly mechanism for a sealing head of a high-pressure vessel. Background Art

[0002] In the field of ultra-high pressure vessels, threads or jacks are commonly used to install the sealing head. When the sealing head is small, threaded compression rings and plug flanges are generally used to install and remove the sealing head; when the sealing head is large, T-frames with bolts or jacks are used to install and remove the sealing head. For comparison, only the installation and removal methods of large-sized sealing heads are introduced here, such as Figure 1-1 As shown in the figure, it is the installation structure of a conventional large-size sealing head. The installation adopts a T-frame structure. The sealing head is connected by the connecting bolts at the lower end of the T-frame. The sealing head is initially installed inside the cylinder through the lifting device. Due to the friction of the O-ring and the clearance fit between the sealing head and the cylinder of H8 / f7, the sealing head cannot be directly installed in place. At this time, the T-frame is evenly moved downward with the compression studs and compression nuts to install the sealing head in place. Figure 1-2 The figure shows the disassembly structure of a conventional large-size sealing head. The disassembly adopts a T-frame structure. The sealing head is connected by the connecting bolts at the lower end of the T-frame. The sealing head is separated from the sealing surface by synchronously lifting it with a jack using the surroundings of the cylinder as support. The sealing head is then removed by a crane or forklift. There are three problems with the installation and disassembly method of the above-mentioned large-size sealing head: (1) manual operation is required, and personnel are required to manually lift the jack and rotate the compression nut, which wastes labor; (2) a lot of experience is required, otherwise the axis of the sealing head is not coaxial with the axis of the cylinder, which may cause the sealing head to get stuck and unable to be removed; (3) the disassembly and installation are two T-frames with different functions, which cannot be unified. Utility Model Content

[0003] The main purpose of the utility model is to provide a rapid opening and closing device for a sealing head of a high-pressure container. The device has an integrated disassembly and assembly function. The opening and closing device and the sealing head do not need to be disassembled, the degree of automation is high, and labor costs are saved.

[0004] The technical solution adopted by the utility model is:

[0005] A quick opening and closing device for a sealing head of a high-pressure container comprises a gantry, a hydraulic cylinder and a connecting frame; the gantry is fixedly installed above the cylinder body of the high-pressure container, the connecting frame is fixedly installed above the sealing head of the high-pressure container, and the connecting frame is located below the gantry; the cylinder body of the hydraulic cylinder is fixedly connected to the gantry, the telescopic rod of the hydraulic cylinder is fixedly connected to the connecting frame, the sealing head is pressed by the extension of the hydraulic cylinder, and the sealing head is lifted and tightened by the contraction of the hydraulic cylinder.

[0006] In the above scheme, the quick opening and closing device also includes a guide rod; a guide mechanism is provided on the door-shaped frame, the upper end of the guide rod is inserted into the guide mechanism, and the lower end of the guide rod is fixedly connected to the connecting frame; and the axial direction of the guide rod is parallel to the axis of the telescopic rod.

[0007] In the above scheme, the guide mechanism includes a guide sleeve, a copper sleeve and a clamping flange. The guide sleeve is welded to the gantry, the copper sleeve is installed on the upper and lower ends of the inner wall of the guide sleeve, and the clamping flange is installed on the upper and lower end surfaces of the guide sleeve through fasteners.

[0008] In the above solution, a plurality of guide mechanisms are evenly arranged around the hydraulic cylinder.

[0009] In the above scheme, the guide rod includes a flange rod and an anti-slip plate, the anti-slip plate is fixedly installed on the upper end of the flange rod, and the diameter of the anti-slip plate is larger than the diameter of the flange rod; the lower end of the flange rod is connected to the connecting frame.

[0010] In the above scheme, the gantry includes a column, a beam and a ring plate; the column is vertically arranged, the lower end of the column is fixedly connected to the upper end of the cylinder of the high-pressure container, and the upper end of the column is fixedly connected to the beam; a plurality of beams are evenly arranged around the axis of the cylinder, and the ring plate is located at the center of the plurality of beams and connected to each beam; a center hole for the cylinder body of the hydraulic cylinder to pass through is provided in the center of the ring plate, and mounting holes for the guide mechanism are provided on the ring plate around the periphery of the center hole.

[0011] In the above scheme, the columns are steel pipes or profiles; and the cross beams and the ring plates are welded.

[0012] In the above scheme, an end flange is provided at the lower end of the cylinder body of the hydraulic cylinder, and a ball joint flange is provided at the lower end of the telescopic rod of the hydraulic cylinder. The end flange is connected to the crossbeam of the gantry through fasteners, and the ball joint flange is connected to the connecting frame through fasteners.

[0013] In the above scheme, the connecting frame includes a cylinder wall, an upper end plate, and a lower end plate; the cylinder wall is coaxially arranged with the sealing head, the upper end plate is installed at the upper end of the cylinder wall and is fixedly connected to the end of the telescopic rod of the hydraulic cylinder, and the lower end plate is installed at the lower end of the cylinder wall and is fixedly connected to the sealing head.

[0014] The beneficial effects of the utility model are:

[0015] (1) The opening and closing device and the sealing head do not need to be disassembled, and the operation is simple. However, when installing and disassembling the sealing head with traditional tools, the tools need to be replaced, which is complicated to operate.

[0016] (2) The degree of automation is high. During the disassembly and assembly of the sealing head, personnel only need to operate the extension and retraction of the hydraulic cylinder, which reduces the operating level of personnel and can complete the disassembly without a lot of experience.

[0017] (3) Save labor costs and reduce labor intensity. Personnel only need to remove the fixing bolts and operate the crane lifting opening and closing device + sealing head to complete the installation and removal of the sealing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0019] Figure 1-1 It is a schematic diagram of the installation structure of a conventional large-size sealing head;

[0020] Figure 1-2 It is a schematic diagram of the disassembly structure of a conventional large-size sealing head;

[0021] Figure 2 It is a structural schematic diagram of a quick opening and closing device for a sealing head of a high-pressure container of the utility model;

[0022] Figure 3 It is a schematic diagram of the utility model of the rapid opening and closing device of the sealing head of the high-pressure container lifting the sealing head;

[0023] Figure 4 yes Figure 2 A top view of the portal frame of the quick opening and closing device;

[0024] Figure 5 yes Figure 2 A cross-sectional view of the guide mechanism of the quick opening and closing device;

[0025] Figure 6 yes Figure 2 A schematic diagram of the structure of the guide rod of the quick opening and closing device shown;

[0026] Figure 7 yes Figure 2 A main sectional view of the connecting frame of the quick opening and closing device shown;

[0027] Figure 8 yes Figure 7 A cross-sectional view of the connecting frame taken along the AA direction is shown.

[0028] In the figure: 10, gantry; 11, column; 12, beam; 13, ring plate; 14, guide mechanism; 141, guide sleeve; 142, copper sleeve; 143, clamping flange;

[0029] 20. Guide rod; 21. Flange rod; 22. Anti-slip plate;

[0030] 30. Hydraulic cylinder; 31. Cylinder body; 32. Telescopic rod;

[0031] 40. Connecting frame; 41. Cylinder wall; 42. Upper end plate; 43. Lower end plate;

[0032] 201. Cylinder body; 202. Sealing head. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] like Figure 2 As shown, the utility model proposes a rapid opening and closing device for a sealing head of a high-pressure container, comprising a gantry 10, a hydraulic cylinder 30 and a connecting frame 40; the gantry 10 is fixedly installed above a cylinder 201 of the high-pressure container, and the connecting frame 40 is fixedly installed above a sealing head 202 of the high-pressure container by fasteners (such as bolts), and the connecting frame 40 is located below the gantry 10; a cylinder body 31 of the hydraulic cylinder 30 is fixedly connected to the gantry 10, and a telescopic rod 32 of the hydraulic cylinder 30 is fixedly connected to the connecting frame 40, the sealing head 202 is pressed by the extension of the hydraulic cylinder 30, and the sealing head 202 is lifted by the contraction of the hydraulic cylinder 30, and the lifting process can be seen in FIG. Figure 3 .

[0035] Further optimized, the quick opening and closing device also includes a guide rod 20; a guide mechanism 14 is provided on the door-shaped frame 10, the upper end of the guide rod 20 is passed through the guide mechanism 14, and the lower end of the guide rod 20 is fixedly connected to the connecting frame 40; and the axial direction of the guide rod 20 is parallel to the axis of the telescopic rod 32.

[0036] Further optimization, such as Figure 4 As shown, the gantry 10 includes a column 11, a beam 12 and a ring plate 13; the column 11 is vertically arranged, the lower end of the column 11 is fixedly connected to the upper end of the cylinder 201 of the high-pressure container by a fastener (such as a bolt), and the upper end of the column 11 is fixedly connected to the beam 12 by a fastener (such as a bolt); a plurality of beams 12 are evenly arranged around the axis of the cylinder 201 (four beams 12 are arranged in this embodiment), and the ring plate 13 is located at the center of the plurality of beams 12 and is connected to each beam 12; a center hole for the cylinder body 31 of the hydraulic cylinder 30 to pass through is provided in the center of the ring plate 13, and mounting holes for the guide mechanism 14 are provided on the ring plate 13 around the outer periphery of the center hole.

[0037] Further optimization, such as Figure 5As shown, the guide mechanism 14 includes a guide sleeve 141, a copper sleeve 142 and a clamping flange 143. The guide sleeve 141 is welded to the gantry 10. The copper sleeve 142 is installed at the upper and lower ends of the inner wall of the guide sleeve 141 to reduce the friction between the guide rod 20 and the guide sleeve 141; the clamping flange 143 is installed at the upper and lower end surfaces of the guide sleeve 141 by fasteners (such as bolts) to prevent the copper sleeve 142 from falling out due to the movement of the guide rod 20.

[0038] In further optimization, multiple guide mechanisms 14 are evenly arranged around the hydraulic cylinder 30; and multiple guide rods 20 are also arranged accordingly. In this embodiment, the number of guide mechanisms 14 and guide rods 20 are both four.

[0039] Further optimization, such as Figure 6 As shown, the guide rod 20 includes a flange rod 21 and an anti-slip plate 22. The anti-slip plate 22 is fixedly installed on the upper end of the flange rod 21 by fasteners (such as bolts), and the diameter of the anti-slip plate 22 is larger than the diameter of the flange rod 21, so that the anti-slip plate 22 serves as a limit plate for the guide rod 20 to prevent it from escaping from the guide mechanism 14; a through hole is opened at the lower end of the flange rod 21 for connecting with the connecting frame 40.

[0040] Further optimized, the column 11 is a steel pipe or profile; the cross beam 12 and the ring plate 13 are welded.

[0041] Further optimization, the lower end of the cylinder body 31 of the hydraulic cylinder 30 is provided with an end flange, the lower end of the telescopic rod 32 of the hydraulic cylinder 30 is provided with a ball joint flange, the end flange is connected to the crossbeam 12 of the portal frame 10 by fasteners, and the ball joint flange is connected to the connecting frame 40 by fasteners.

[0042] Further optimization, such as Figure 7-8 As shown, the connecting frame 40 includes a cylinder wall 41, an upper end plate 42, and a lower end plate 43; the cylinder wall 41 is coaxially arranged with the sealing head 202, the upper end plate 42 is installed at the upper end of the cylinder wall 41, and is fixedly connected to the end of the telescopic rod 32 of the hydraulic cylinder 30, and the lower end plate 43 is installed at the lower end of the cylinder wall 41, and is fixedly connected to the sealing head 202.

[0043] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A quick opening and closing device for a sealing head of a high-pressure container, characterized in that: It includes a gantry, a hydraulic cylinder and a connecting frame; the gantry is fixedly installed above the cylinder body of the high-pressure container, the connecting frame is fixedly installed above the sealing head of the high-pressure container, and the connecting frame is located below the gantry; the cylinder body of the hydraulic cylinder is fixedly connected to the gantry, the telescopic rod of the hydraulic cylinder is fixedly connected to the connecting frame, the sealing head is pressed by the extension of the hydraulic cylinder, and the sealing head is lifted and tightened by the contraction of the hydraulic cylinder.

2. The rapid opening and closing device for the sealing head of a high pressure container according to claim 1, characterized in that: The quick opening and closing device also includes a guide rod; a guide mechanism is provided on the door-shaped frame, the upper end of the guide rod is inserted into the guide mechanism, and the lower end of the guide rod is fixedly connected to the connecting frame; and the axial direction of the guide rod is parallel to the axis of the telescopic rod.

3. The rapid opening and closing device for the sealing head of a high pressure container according to claim 2, characterized in that: The guide mechanism includes a guide sleeve, a copper sleeve and a clamping flange. The guide sleeve is welded to the gantry. The copper sleeve is installed on the upper and lower ends of the inner wall of the guide sleeve. The clamping flange is installed on the upper and lower end surfaces of the guide sleeve through fasteners.

4. The rapid opening and closing device for the sealing head of a high pressure container according to claim 2, characterized in that: A plurality of guide mechanisms are evenly arranged around the hydraulic cylinder.

5. The rapid opening and closing device for the sealing head of a high pressure container according to claim 2, characterized in that: The guide rod comprises a flange rod and an anti-slip plate, wherein the anti-slip plate is fixedly mounted on the upper end of the flange rod, and the diameter of the anti-slip plate is larger than the diameter of the flange rod; the lower end of the flange rod is connected to the connecting frame.

6. The rapid opening and closing device for the sealing head of a high pressure container according to claim 2, characterized in that: The gantry frame includes a column, a crossbeam and a ring plate; the column is vertically arranged, the lower end of the column is fixedly connected to the upper end of the cylinder of the high-pressure container, and the upper end of the column is fixedly connected to the crossbeam; a plurality of crossbeams are evenly arranged around the axis of the cylinder, and the ring plate is located at the center of the plurality of crossbeams and connected to each of the crossbeams; a center hole for the cylinder body of the hydraulic cylinder to pass through is provided in the center of the ring plate, and mounting holes for the guide mechanism are provided on the ring plate around the periphery of the center hole.

7. The rapid opening and closing device for the sealing head of a high pressure container according to claim 6, characterized in that: The columns are steel pipes or profiles; the cross beams and the ring plates are welded.

8. The rapid opening and closing device for the sealing head of a high pressure container according to claim 1, characterized in that: An end flange is provided at the lower end of the cylinder body of the hydraulic cylinder, a ball joint flange is provided at the lower end of the telescopic rod of the hydraulic cylinder, the end flange is connected to the crossbeam of the portal frame through fasteners, and the ball joint flange is connected to the connecting frame through fasteners.

9. The rapid opening and closing device for the sealing head of a high pressure container according to claim 1, characterized in that: The connecting frame includes a cylinder wall, an upper end plate, and a lower end plate; the cylinder wall is coaxially arranged with the sealing head, the upper end plate is installed at the upper end of the cylinder wall and is fixedly connected to the end of the telescopic rod of the hydraulic cylinder, and the lower end plate is installed at the lower end of the cylinder wall and is fixedly connected to the sealing head.

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