End socket for pressure vessel
By designing positioning grooves and positioning block structures on the end caps and the vessel body, the problems of inconvenient alignment and misalignment during welding are solved, achieving stable and precise welding results, enhancing the stability and sealing of the connection, and improving the service life of the pressure vessel.
Patent Information
- Application Number
- CN202520764926.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-04-22
AI Technical Summary
The lack of a limiting structure on the end faces of the head and pressure vessel during welding makes alignment difficult and prone to misalignment, affecting the welding effect.
The design incorporates a positioning groove and positioning block structure. The positioning groove limits the positioning block, ensuring that the end face of the end cap and the container body are aligned and forming a weld seam during welding. After welding, the connection is secured by the engagement of reinforcing ribs and plug plates, as well as fastening bolts, thereby enhancing connection stability and sealing.
This method achieves stable alignment welding between the head and the vessel body, improving welding precision and connection stability, enhancing sealing performance, and extending the service life of the pressure vessel.
Smart Images

Figure CN224017704U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of head, concretely is a head for pressure vessel. BACKGROUND
[0002] The head is the end cover on the pressure vessel and is a main pressure-bearing component of the pressure vessel. The head plays a sealing role. Firstly, the head is the upper and lower bottom of the tank-shaped pressure vessel, and secondly, the head is used to seal the pipe by welding when the pipe is not intended to be extended forward, so the quality of the head is directly related to the long-term safe and reliable operation of the pressure vessel.
[0003] When the head is welded to the pressure vessel, the end faces of the head and the pressure vessel are aligned, and then a welding tool is used to weld the connection. However, the end faces of the head and the pressure vessel lack a limiting structure, which makes it inconvenient to align the end faces, and the head and the pressure vessel are prone to shift during welding, which causes errors and affects the overall effect after welding. UTILITY MODEL CONTENTS
[0004] The utility model discloses a head for pressure vessel, which solves the problems in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a head for pressure vessel, comprising a container body, a fitting groove is formed in the top of the container body, a positioning groove is formed in the inside of the fitting groove, a head body is arranged on the top of the container body, a fitting edge is fixedly connected to the bottom of the head body, the fitting edge is slidingly connected to the inside of the fitting groove, a positioning block is fixedly connected to the surface of the fitting edge, the positioning block is clamped in the inside of the positioning groove, and a welding seam is arranged between the fitting edge and the fitting groove.
[0006] As a further preferred embodiment of the present technical solution, the number of positioning grooves is six, the number of positioning blocks corresponds to the number of positioning grooves, and the head body adopts a hemispherical structure.
[0007] As a further preferred embodiment of the present technical solution, one end of the top of the head body is fixedly connected to a material injection port, a lifting lug is fixedly connected to the top of the head body, and a pressure gauge is fixedly connected to the side of the top of the head body away from the material injection port.
[0008] As a further preferred technical solution of the present application, the surface of the head body is fixedly connected with a first support, the inside of the first support is slidably connected with a plug-in plate, the plug-in plate penetrates through the first support and extends to the bottom of the first support, the top of the plug-in plate is fixedly connected with a limiting plate, the side of the plug-in plate away from the head body is provided with a bayonet, the inside of the bayonet is clamped with a reinforcing rib, the reinforcing rib is in contact with the container body, and the bottom of the plug-in plate is provided with a camber.
[0009] As a further preferred technical solution of the present application, the number of the first supports is six, the shape of the six first supports is U-shaped, the plug-in plate is in contact with the container body, the position of the plug-in plate corresponds to that of the positioning groove, and the number of the bayonets is two.
[0010] As a further preferred technical solution of the present application, the surface of the plug-in plate is slidably connected with a second support, the second support is fixedly connected to the surface of the container body, the middle part of the second support and the plug-in plate is provided with a threaded hole, the inside of the threaded hole is threadedly connected with a fastening bolt, and the end of the fastening bolt away from the container body is fixedly connected with a rotating disc.
[0011] As a further preferred technical solution of the present application, the second support is located between the two reinforcing ribs, and the fastening bolt penetrates through the threaded hole and abuts against the container body.
[0012] The utility model provides a head for pressure vessel has the following beneficial effects:
[0013] (1) the utility model discloses a head body is moved to through the lug, and the end face of head body and container body corresponds, and the head body is rotated, and the positioning block is inserted into the positioning groove, and the edge is removed into the assembly groove simultaneously, and the welding seam is formed at the junction, so that the staff is convenient for welding, and the positioning of positioning groove to positioning block makes head body not easy to move, to guarantee the stability and accuracy in the welding process.
[0014] (2) the utility model discloses that the two reinforcing ribs are placed at the two sides of the second support, after welding, the plug-in plate is slid down, and the plug-in plate generates sliding through the camber at the bottom thereof and the reinforcing rib, and the two reinforcing ribs are respectively clamped on the two bayonets of the plug-in plate, because the position of the plug-in plate corresponds to that of the positioning groove, the plug-in plate is extruded after the installation of the reinforcing rib, and the positioning block and the positioning groove are tightly attached, so as to guarantee the sealing property of the junction. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is the structure schematic view of the utility model;
[0016] Fig. 2 It is the bottom structure schematic view of the utility model.
[0017] Fig. 3 Structure diagram of the container body and the head body of the utility model is unfolded;
[0018] Fig. 4 Structure diagram of the utility model's plug-in board is unfolded.
[0019] In the drawing: 1, container body; 2, assembly groove; 3, positioning groove; 4, head body; 5, fit edge; 6, positioning block; 7, welding seam; 8, injection port; 9, lifting lug; 10, pressure gauge; 11, first support; 12, plug-in board; 13, limiting plate; 14, bayonet; 15, camber; 16, reinforcing rib; 17, second support; 18, threaded hole; 19, fastening bolt; 20, rotating disc. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0021] The utility model provides technical schemes: as Figs. 1 to 4 As shown in the drawing, in the embodiment, a head for pressure vessel includes container body 1, the top of container body 1 is provided with assembly groove 2, the inside of assembly groove 2 is provided with positioning groove 3, the top of container body 1 is provided with head body 4, the bottom of head body 4 is fixedly connected with fit edge 5, fit edge 5 is slidingly connected in the inside of assembly groove 2, the surface of fit edge 5 is fixedly connected with positioning block 6, positioning block 6 is clamped in the inside of positioning groove 3, and welding seam 7 is arranged between fit edge 5 and assembly groove 2.
[0022] Through lifting lug 9, head body 4 is moved, and the end face of head body 4 and container body 1 is corresponded, head body 4 is rotated, positioning block 6 is inserted into positioning groove 3, fit edge 5 is moved into assembly groove 2, and welding seam 7 is formed at the connecting place, so that the welding of staff is facilitated, and the positioning of positioning groove 3 to positioning block 6 makes head body 4 not easy to move, so as to ensure the stability and accuracy in the welding process.
[0023] The number of positioning groove 3 is six, the number of positioning block 6 and positioning groove 3 is corresponding, and head body 4 adopts hemispherical structure.
[0024] Head body 4 adopts hemispherical structure, so that pressure can be evenly dispersed, so as to improve the service life of pressure vessel, and due to the regular shape, the processing and manufacturing are relatively convenient, and the connection with other components is also relatively easy.
[0025] The top end of the head body 4 is fixedly connected with a feeding opening 8, the top of the head body 4 is fixedly connected with a lifting lug 9, and the side of the top of the head body 4 away from the feeding opening 8 is fixedly connected with a pressure gauge 10.
[0026] The surface of the head body 4 is fixedly connected with a first support 11, the inside of the first support 11 is slidably connected with a plug-in plate 12, the plug-in plate 12 penetrates through the first support 11 and extends to the bottom of the first support 11, the top of the plug-in plate 12 is fixedly connected with a limiting plate 13, the side of the plug-in plate 12 away from the head body 4 is provided with a bayonet 14, the inside of the bayonet 14 is clamped with a reinforcing rib 16, the reinforcing rib 16 is in contact with the container body 1, and the bottom of the plug-in plate 12 is provided with an arc surface 15.
[0027] After the two reinforcing ribs 16 are placed on the two sides of the second support 17, the plug-in plate 12 is slid downward, the arc surface 15 at the bottom of the plug-in plate 12 slides with the reinforcing rib 16, and the two reinforcing ribs 16 are clamped on the two bayonets 14 of the plug-in plate 12 respectively, due to the position correspondence between the plug-in plate 12 and the positioning groove 3, the plug-in plate 12 is extruded after the reinforcing rib 16 is installed, and the positioning block 6 and the positioning groove 3 are tightly attached, so that the sealing property of the connecting portion is ensured, and the reinforcing rib 16 and the plug-in plate 12 are welded on the container body 1 by using a welding tool, so that the connecting portion is reinforced, the strength of the connecting portion is increased, and fatigue cracks are avoided.
[0028] The number of the first supports 11 is six, the shape of the six first supports 11 is U-shaped, the plug-in plate 12 is in contact with the container body 1, the positions of the plug-in plate 12 and the positioning groove 3 correspond to each other, and the number of the bayonets 14 is two.
[0029] The surface of the plug-in plate 12 is slidably connected with a second support 17, the surface of the second support 17 is fixedly connected to the surface of the container body 1, the middle portions of the second support 17 and the plug-in plate 12 are provided with threaded holes 18, the inside of the threaded hole 18 is screwedly connected with a fastening bolt 19, and the end of the fastening bolt 19 away from the container body 1 is fixedly connected with a rotating disc 20.
[0030] The rotating disc 20 is rotated, the fastening bolt 19 is rotated in the threaded hole 18, the end of the fastening bolt 19 is in abutment with the container body 1, so that the position of the plug-in plate 12 is fixed, and the stability after installation is ensured, and sliding is avoided.
[0031] The second support 17 is located between the two reinforcing ribs 16, the fastening bolt 19 penetrates through the threaded hole 18 and is in abutment with the container body 1.
[0032] The utility model provides a head for pressure vessel, specific working principle is as follows:
[0033] In use, the lug 9 is used to move the head body 4, and the end face of the head body 4 and the container body 1 are corresponded, the head body 4 is rotated, the positioning block 6 is inserted into the positioning groove 3, the abutting edge 5 is moved into the assembling groove 2, and the welding seam 7 is formed at the connecting position, the positioning block 6 is limited by the positioning groove 3, the head body 4 is not easy to move, the welding tool is used to weld the welding seam 7, after the welding is completed, the plug-in plate 12 is slid downward, the plug-in plate 12 slides through the arc surface 15 at the bottom and the reinforcing rib 16, and the two reinforcing ribs 16 are correspondingly clamped on the two clamping ports 14 of the plug-in plate 12, the plug-in plate 12 is extruded by the reinforcing rib 16 after the reinforcing rib 16 is installed, the positioning block 6 and the positioning groove 3 are tightly abutted, the rotary disc 20 is rotated, the fastening bolt 19 is rotated in the threaded hole 18, and the one end of the fastening bolt 19 is abutted against the container body 1, so that the position of the plug-in plate 12 is fixed, the reinforcing rib 16 and the plug-in plate 12 are welded on the container body 1 by the welding tool, and the connecting position is reinforced.
[0034] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A pressure vessel end cap, comprising a vessel body (1), characterized in that: The container body (1) has an assembly groove (2) on its top, and a positioning groove (3) is provided inside the assembly groove (2). The container body (1) has a head body (4) on its top, and a fitting edge (5) is fixedly connected to the bottom of the head body (4). The fitting edge (5) is slidably connected inside the assembly groove (2). A positioning block (6) is fixedly connected to the surface of the fitting edge (5). The positioning block (6) is engaged inside the positioning groove (3). A welding seam (7) is provided between the fitting edge (5) and the assembly groove (2).
2. The pressure vessel end cap according to claim 1, characterized in that: The number of positioning grooves (3) is set to six, and the number of positioning blocks (6) corresponds to the number of positioning grooves (3). The head body (4) adopts a hemispherical structure.
3. A pressure vessel end cap according to claim 1, characterized in that: A filling port (8) is fixedly connected to one end of the top of the head body (4), a lifting lug (9) is fixedly connected to the top of the head body (4), and a pressure gauge (10) is fixedly connected to the side of the top of the head body (4) away from the filling port (8).
4. A pressure vessel end cap according to claim 1, characterized in that: The surface of the end cap body (4) is fixedly connected to a first bracket (11), and a plug plate (12) is slidably connected inside the first bracket (11). The plug plate (12) passes through the first bracket (11) and extends to the bottom of the first bracket (11). A limit plate (13) is fixedly connected to the top of the plug plate (12). A slot (14) is provided on the side of the plug plate (12) away from the end cap body (4). A reinforcing rib (16) is engaged inside the slot (14). The reinforcing rib (16) is in contact with the container body (1). An arc surface (15) is provided at the bottom of the plug plate (12).
5. A pressure vessel end cap according to claim 4, characterized in that: The number of the first bracket (11) is six, and the six first brackets (11) are U-shaped. The plug plate (12) is in contact with the container body (1). The plug plate (12) and the positioning groove (3) are in the same position. The number of the bayonet (14) is two.
6. A pressure vessel end cap according to claim 4, characterized in that: The surface of the plug plate (12) is slidably connected to a second bracket (17), which is fixedly connected to the surface of the container body (1). Both the second bracket (17) and the plug plate (12) have threaded holes (18) in the middle. The threaded holes (18) are threaded with fastening bolts (19), and the end of the fastening bolts (19) away from the container body (1) is fixedly connected to a rotating disk (20).
7. A pressure vessel end cap according to claim 6, characterized in that: The second bracket (17) is located between two reinforcing ribs (16), and the fastening bolt (19) passes through the threaded hole (18) and abuts against the container body (1).