High-pressure quick-opening handhole assembly and reaction kettle

Abstract

This application provides a high-pressure quick-opening manhole assembly and a reaction vessel. The high-pressure quick-opening manhole assembly includes: a flange, which is cylindrical in shape, with one end connected to an opening and the other end having a countersunk hole; a flange cover, capable of being placed within the countersunk hole; a housing, detachably mounted on the flange end with the flange cover; and a connecting shaft, connecting the housing and the flange cover, with the end of the connecting shaft connected to the flange cover being the connecting shaft end, and the head of the connecting shaft end being a ball head. When the housing is lifted, the connecting shaft can lift the flange cover; when the housing is placed onto the flange, the connecting shaft can cover the flange cover into the countersunk hole. The reaction vessel provided in this application includes: a vessel body; and the aforementioned high-pressure quick-opening manhole assembly, with one end of the flange connected to the opening of the vessel body.

Description

Technical Field

[0001] This application relates to the field of handhole technology, and more particularly to high-pressure quick-opening handhole components and reaction vessels. Background Technology

[0002] A handhole is an opening that allows a person or tool to reach into the surface of equipment such as a reactor. Operators can use the handhole to perform installation, maintenance, and cleaning work inside the reactor.

[0003] A handhole (or handhole assembly) mainly consists of the opening on the reactor vessel, the flange connected to the opening, and the flange cover. Based on pressure conditions, handholes can be divided into atmospheric pressure handholes and pressurized handholes. Based on opening speed, handholes can be divided into ordinary handholes and quick-opening handholes.

[0004] In traditional pressurized manholes, those subjected to high pressure typically use bolts, gaskets, and other components to forcibly seal the flange cover. This forced sealing method results in a complex and cumbersome structure, preventing the manhole from opening quickly. Conversely, manholes capable of quick opening generally only withstand lower pressures. High pressure and quick opening are difficult to achieve simultaneously.

[0005] Patent document CN208474488U discloses a clamp for sealing a manhole cover of a high-pressure vessel, as well as a matching manhole cover and manhole flange, which has the typical problem of being able to withstand high pressure but not being convenient to disassemble. Summary of the Invention

[0006] This application provides a high-pressure quick-opening handhole assembly and a reaction vessel.

[0007] The high-pressure quick-opening handhole assembly provided in this application is used for installation in the opening of the vessel body, and the high-pressure quick-opening handhole assembly includes:

[0008] A flange, wherein the flange is a cylindrical structure, one end of the flange is used to connect to the opening, and the other end of the flange is provided with a flange countersunk hole;

[0009] A flange cover, which can be placed in the countersunk hole of the flange;

[0010] A housing, the housing being detachably disposed at the end of the flange where the flange cover is located; and

[0011] A connecting shaft connects the housing and the flange cover. The end of the connecting shaft connected to the flange cover is the connecting shaft end, and the head of the connecting shaft end is a ball joint.

[0012] With the cover lifted, the connecting shaft can lift the flange cover; with the cover placed onto the flange, the connecting shaft can place the flange cover into the flange countersunk hole.

[0013] In at least one embodiment, the flange cover has a flange cover countersunk hole, and the high-pressure quick-opening hand hole assembly further includes a limiting plate that limits the end of the connecting shaft within the flange cover countersunk hole.

[0014] In at least one embodiment, the portion of the connecting shaft adjacent to the end of the connecting shaft is a connecting shaft limiting portion, the diameter of which is smaller than the diameter of the end of the connecting shaft.

[0015] The limiting plate has a limiting plate through hole, the connecting shaft limiting part passes through the limiting plate through hole, the diameter of the limiting plate through hole is smaller than the diameter of the end of the connecting shaft, and the limiting plate abuts against and is connected to the flange cover.

[0016] In at least one embodiment, the end face of the connecting shaft facing away from the flange cover is an axial end face, and when the end face of the connecting shaft abuts against the bottom of the countersunk hole of the flange cover, there is a gap between the axial end face and the limiting plate.

[0017] In at least one embodiment, the connecting shaft is ball-hinged to the flange cover.

[0018] In at least one embodiment, the cover is capable of covering the outer side of the flange at the end where the flange cover is located, the cover includes a hook-shaped cover hook head, and the outer peripheral surface of the flange is provided with a flange flange.

[0019] In the axial direction of the flange, when the projection of the cover hook coincides with that of the flange flange, the cover hook can hook onto the flange flange, preventing the cover and the flange from moving away from each other.

[0020] In at least one embodiment, the cover hooks are multiple and arranged in a circumferential array on the periphery of the cover.

[0021] The flange has multiple flanges, which are arranged in a circumferential array on the outer circumferential surface of the flange located on the same horizontal plane.

[0022] By rotating the cover, the cover hook can be engaged with or disengaged from the flange.

[0023] In at least one embodiment, the housing is provided with a housing support plate having a housing through hole, the flange is provided with a flange support plate having a flange through hole, and the high-pressure quick-opening manhole assembly further includes a pin.

[0024] With the cover hook hooked onto the flange flange, the axis of the cover through hole coincides with that of the flange through hole, and the pin can be inserted into the cover through hole and the flange through hole to prevent relative rotation between the cover and the flange.

[0025] In at least one embodiment, a sealing ring is provided between the flange cover and the flange.

[0026] In at least one embodiment, the flange cover or the flange is provided with a sealing ring groove, which is a groove with a wide bottom and a narrow opening.

[0027] The reaction vessel provided in this application includes:

[0028] The vessel body; and,

[0029] As described above, in the high-pressure quick-opening handhole assembly, one end of the flange is connected to the opening of the vessel body.

[0030] The high-pressure quick-opening handhole assembly provided in this application indirectly controls the positional relationship between the flange and the flange cover through the cover and the connecting shaft, making the handhole opening process convenient and quick; the flange cover is set in the flange countersunk hole of the flange, and the head of the connecting shaft connected to the flange cover is a curved head, which allows the position of the flange cover to be finely adjusted, making it easier for the flange to be automatically positioned and aligned, and resulting in a better sealing effect.

[0031] The reactor provided in this application also possesses the aforementioned advantages due to having the high-pressure quick-opening manhole assembly. Attached Figure Description

[0032] Figure 1 A top view is shown of the housing and flange of a high-pressure quick-opening handhole assembly according to an embodiment of this application, with the housing and flange in an unlocked state in the axial direction.

[0033] Figure 2 A front cross-sectional view of the housing and flange of the high-pressure quick-opening manhole assembly according to an embodiment of this application is shown with the housing and flange in an axially locked state.

[0034] Figure 3 A cross-sectional view of the sealing ring groove and sealing ring of the high-pressure quick-opening handhole assembly according to an embodiment of this application is shown.

[0035] Explanation of reference numerals in the attached figures

[0036] 1. Flange; 11. Flange countersunk hole; 12. Flange flange; 13. Flange support plate; 131. Flange through hole;

[0037] 2. Flange cover; 21. Sealing ring groove; 22. Flange cover countersunk hole;

[0038] 3. Cover; 31. Cover hook; 32. Cover support plate; 321. Cover through hole; 33. Chain; 34. Handle; 35. Chain; 36. Warning sign;

[0039] 4. Connecting shaft; 41. Connecting shaft end; 411. Axial end face; 42. Connecting shaft limiting part;

[0040] 5. The vessel body; 51. The opening;

[0041] 6 sealing rings;

[0042] 7. Limiting plate; 71. Limiting plate through hole;

[0043] 8 pins Detailed Implementation

[0044] Exemplary embodiments of this application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are for teaching those skilled in the art how to implement this application only, and are not intended to exhaustively describe all possible methods of this application, nor to limit the scope of this application.

[0045] See Figure 1 , Figure 2 The high-pressure quick-opening handhole assembly provided in this application may include a flange 1, a flange cover 2, a housing 3, and a connecting shaft 4. The high-pressure quick-opening handhole assembly can be installed on the opening 51 of the vessel body 5 of a reaction vessel in industries such as chemical, lithium battery, and pharmaceutical. Of course, this application does not limit the type of reaction vessel.

[0046] Flange 1 can be a cylindrical structure. One end of flange 1 ( Figure 2 The lower end) is used to connect to the opening 51 of the vessel body 5, and the other end of the flange 1 ( Figure 2 A flange cover 2 is installed at the top. After opening the flange cover 2, a hand or tool can be inserted into the interior of the vessel body 5 through the flange 1 and the opening 51.

[0047] Furthermore, the flange 1 with the flange cover 2 can be provided with a flange countersunk hole 11, and the flange cover 2 can be placed in the flange countersunk hole 11 to facilitate the adjustment of the flange cover 2's position (described later).

[0048] A sealing ring 6 can be installed between the flange cover 2 and the flange 1. A sealing ring groove 21 can be installed on the flange cover 2 or the flange 1. See also Figure 3 A sealing ring groove 21 can be provided at the bottom of the flange cover 2 to house the sealing ring 6. The sealing ring groove 21 can be a wide-bottomed, narrow-mouthed groove to prevent the sealing ring 6 from accidentally falling off when the handhole is repeatedly opened and closed. Alternatively, a sealing ring groove 21 can be provided on the axial end face of the flange 1 that contacts the bottom of the flange cover 2 to house the sealing ring 6.

[0049] The cover 3 is detachably disposed at the end of the flange 1 where the flange cover 2 is located. Exemplarily, the cover 3 can be a hollow conical structure, which can be a forging. The cover 3 can be disposed coveringly on the outer side of the end of the flange 1 where the flange cover 2 is located. A connecting shaft 4 can be connected to the cover 3. The connecting shaft 4 can be threaded to the cover 3, and the connecting shaft 4 can be located on the central axis of the cover 3. One end of the connecting shaft 4 can be connected to the flange cover 2. When the cover 3 is lifted, the connecting shaft 4 can lift the flange cover 2. When the cover 3 is placed onto the flange 1, the connecting shaft 4 can cover the flange cover 2 into the countersunk hole 11 of the flange.

[0050] The connection method between the connecting shaft 4 and the flange cover 2 has a significant impact on the sealing effect between the flange cover 2 and the flange 1. In one embodiment of this application, the end of the connecting shaft 4 that connects to the flange cover 2 is a connecting shaft end 41, and the head of the connecting shaft end 41 is a ball head. Alternatively, the head of the connecting shaft end 41 is a spherical curved surface protruding along the axial direction of the connecting shaft. The flange cover 2 has a flange cover countersunk hole 22, and the connecting shaft end 41 can extend into the flange cover countersunk hole 22.

[0051] The portion of the connecting shaft 4 adjacent to the end 41 of the connecting shaft is the connecting shaft limiting portion 42. The diameter of the connecting shaft limiting portion 42 is smaller than the diameter of the end 41 of the connecting shaft, so that the end 41 of the connecting shaft has an axial end face 411 facing away from the flange cover 2.

[0052] The high-pressure quick-opening manhole assembly may further include a limiting plate 7, which is used to limit the end 41 of the connecting shaft within the countersunk hole 22 of the flange cover. Exemplarily, the limiting plate 7 has a limiting plate through hole 71 in the middle, through which the connecting shaft limiting portion 42 passes, and the diameter of the limiting plate through hole 71 is smaller than the diameter of the end 41 of the connecting shaft. The limiting plate 7 abuts against and is connected to the flange cover 2. In one example, the limiting plate 7 may include multiple sector-shaped sub-plates, which together form an annular limiting plate 7. Of course, this application is not limited to this.

[0053] With the end 41 of the connecting shaft abutting against the bottom of the countersunk hole 22 of the flange cover, there is a certain gap between the axial end face 411 and the limiting plate 7, so that there is a certain position adjustment space in the countersunk hole 22 of the flange cover, and the relative position relationship between the flange cover 2 and the connecting shaft 4 can be adjusted.

[0054] When the connecting shaft 4 is away from the flange 1, the axial end face 411 of the connecting shaft end 41 can abut against the limiting plate 7, thereby driving the limiting plate 7 and the flange cover 2 to move together. When the connecting shaft 4 moves closer to the flange 1, the relative positional relationship between the connecting shaft 4 and the flange cover 2 can be adjusted. Even if the connecting shaft 4 deviates from the installation axis, the flange cover 2 can automatically adjust the installation angle when pressing against the flange countersunk hole 11 to smoothly press against the plane of the flange countersunk hole 11, so that the sealing ring 6 forms a better pressing effect and ensures sealing performance. Compared with the implementation method where the connecting shaft 4 is fixedly connected to the flange cover 2 and the flange cover 2 cannot adjust its position independently, the solution in the above embodiment of this application where the flange cover 2 can adjust its position independently obviously achieves a better sealing effect.

[0055] Of course, the connecting shaft 4 and the flange cover 2 can also be connected by a ball joint or other relative rotational and / or movable connection. The end 41 of the connecting shaft can be phosphated to improve its wear resistance.

[0056] The housing 3 may include hook-shaped housing hooks 31, and the outer peripheral surface of the flange 1 may be provided with radially protruding flange flanges 12. There may be multiple housing hooks 31, arranged in a circumferential array on the periphery of the housing 3. There may be multiple flange flanges 12, arranged in a circumferential array on the outer peripheral surface of the flange 1, which are located on the same horizontal plane. See also... Figure 2 By rotating the cover 3 about the axis of flange 1, when the projection of the cover hook 31 coincides with that of the flange flange 12 in the direction parallel to the axis of flange 1, the cover hook 31 can hook onto the flange flange 12, thus preventing the cover 3 and flange 1 from moving away from each other in the axial direction of flange 1, and keeping the cover 3 and flange 1 in a locked state in the axial direction. See also Figure 1 Rotate again, and when the projections of the cover hook 31 and the flange flange 12 in the direction parallel to the axis of the flange 1 do not coincide, the cover 3 and the flange 1 are in an unlocked state in the axial direction, and the cover 3 and the flange cover 2 can be pulled out.

[0057] When the pressure inside the vessel body 5 increases and the flange cover 2 tends to detach from the flange 1, the connecting shaft 4 presses the flange cover 2 into the flange countersunk hole 11 by means of the hook relationship between the cover hook 31 and the flange flange 12, thus preventing the flange cover 2 from detaching from the flange 1. The sealing ring 6 is evenly pressed between the flange 1 and the flange cover 2, and the contact pressure between the flange 1 and the flange cover 2 is relatively large, resulting in a good sealing effect. The handhole assembly forms a self-tightening seal. Compared with the forced seals commonly used in the prior art, the self-tightening seal can also withstand higher pressures. Moreover, the handhole assembly provided in this embodiment does not have bolts, gaskets, or other forced sealing components, making it relatively lightweight and achieving a quick-opening effect.

[0058] A cover support plate 32 with a cover through hole 321 can be provided on the cover 3, and a flange support plate 13 with a flange through hole 131 can be provided on the flange 1. The high-pressure quick-opening manhole assembly may also include a pin 8. When the cover hook 31 is hooked together with the flange flange 12, the axes of the cover through hole 321 and the flange through hole 131 coincide, and the pin 8 can be inserted into the cover through hole 321 and the flange through hole 131 to prevent the cover 3 and the flange 1 from rotating relative to each other. A chain 33 may also be provided on the cover 3, and the chain 33 is connected to the pin 8 to prevent the pin 8 from being accidentally dropped or lost.

[0059] A handle 34 can also be provided on the cover 3 to facilitate lifting and placing the cover 3. A chain 35 and a warning sign 36 can also be provided on the handle 34.

[0060] The embodiments of this application also provide a reaction vessel, which includes the above-mentioned high-pressure quick-opening handhole assembly and a vessel body 5 having an opening 51, with one end of the flange 1 connected to the opening 51.

[0061] The above description is the preferred embodiment of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A high-pressure quick-opening handhole assembly for installation in the opening (51) of a vessel body (5), characterized in that, The high-pressure quick-opening handhole assembly includes: Flange (1), the flange (1) is a cylindrical structure, one end of the flange (1) is used to connect to the opening (51), and the other end of the flange (1) is provided with a flange countersunk hole (11). Flange cover (2), which can be placed in the flange countersunk hole (11); Cover (3), said cover (3) being detachably disposed at one end of said flange (1) where said flange cover (2) is disposed; and A connecting shaft (4) is connected to the cover (3) and the flange cover (2). The end of the connecting shaft (4) connected to the flange cover (2) is a connecting shaft end (41), and the head of the connecting shaft end (41) is a ball head. With the cover (3) lifted, the connecting shaft (4) can lift the flange cover (2). With the cover (3) placed on the flange (1), the connecting shaft (4) can place the flange cover (2) into the flange countersunk hole (11). The connecting shaft (4) is ball-hinged to the flange cover (2).

2. The high-pressure quick-opening handhole assembly according to claim 1, characterized in that, The cover (3) is disposed on the outer side of the flange (1) at the end where the flange cover (2) is disposed. The cover (3) includes a hook-shaped cover hook head (31). The outer peripheral surface of the flange (1) is provided with a flange flange (12). In the axial direction of the flange (1), when the projection of the cover hook (31) coincides with that of the flange flange (12), the cover hook (31) can hook onto the flange flange (12) so that the cover (3) and the flange (1) cannot move away from each other.

3. The high-pressure quick-opening handhole assembly according to claim 2, characterized in that, The cover hooks (31) are multiple and arranged in a circumferential array on the periphery of the cover (3). The flange (12) has multiple flanges, which are arranged in a circumferential array on the outer circumferential surface of the flange (1) located on the same horizontal plane. By rotating the cover (3), the cover hook (31) can be hooked together with or unhooked from the flange (12).

4. The high-pressure quick-opening handhole assembly according to claim 3, characterized in that, The cover (3) is provided with a cover support plate (32) having a cover through hole (321), the flange (1) is provided with a flange support plate (13) having a flange through hole (131), and the high pressure quick-opening hand hole assembly also includes a pin (8). With the cover hook (31) hooked onto the flange flange (12), the cover through hole (321) and the flange through hole (131) are aligned, and the pin (8) can be inserted into the cover through hole (321) and the flange through hole (131) to prevent relative rotation between the cover (3) and the flange (1).

5. The high-pressure quick-opening handhole assembly according to claim 1, characterized in that, A sealing ring (6) is provided between the flange cover (2) and the flange (1).

6. The high-pressure quick-opening handhole assembly according to claim 5, characterized in that, The flange cover (2) or the flange (1) is provided with a sealing ring groove (21), which is a groove with a wide bottom and a narrow opening.

7. A reaction vessel, characterized in that, include: The vessel body (5); as well as, The high-pressure quick-opening handhole assembly according to any one of claims 1 to 6, wherein one end of the flange (1) is connected to the opening (51) of the vessel body (5).

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