Large-pipe-diameter detachable pressure test end socket
By designing a large-diameter detachable pressure test head and using welding structure and stud connection, the problems of high pressure resistance test cost and long procurement cycle of large-diameter pipe ports in the existing technology are solved, and the reliability and cost of the test are reduced.
Patent Information
- Application Number
- CN202422407154.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The cost of tooling used for large-diameter pressure resistance tests of existing pressure vessels is high, the cost of making materials by themselves is high, and the procurement cycle is long, making it difficult to effectively solve the pressure resistance test problem of large-diameter pipe ports of high-pressure pressure vessels.
A large-diameter detachable pressure test sealing head is designed, including cylinder sections, elliptical heads, flanges and seals. The sealing is achieved through welding structures and stud connections, which improves the sealing strength and the reliability of the test.
Through the design of welding structure and stud connection, the sealing strength and test reliability are improved, the test cost is reduced, and the operation is simplified, which solves the problem of pressure resistance test of large-diameter pipe ports of high-pressure pressure vessels.
Smart Images
Figure CN223049374U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure vessel detection, in particular to a large-diameter detachable pressure test head. Background Technique
[0002] With the continuous development of industrial technology, pressure vessels, as important industrial equipment, play an indispensable role in industries such as chemical engineering, petroleum, and pharmaceuticals.
[0003] In order to ensure the safe and stable operation of pressure vessels, the hydrostatic test has become a crucial detection method. The hydrostatic test is to fill water into the pressure vessel and apply a certain pressure to assess the strength of the pressure-bearing components, expose defects, and ensure that the pressure-bearing components are not damaged. The purpose of the test is to ensure the safety and reliability of the pressure vessel and prevent safety accidents such as leakage and explosion during use. The pipe orifice diameters of some pressure vessels are large, and the pressure of the pressure test is relatively high. The procurement cost of the original form of the water test tooling is high, the material cost required for self-production is relatively high, it is not easy to purchase with a small quantity, and the procurement cycle is long.
[0004] Therefore, the utility model provides a large-diameter detachable pressure test head to solve the above problems. Content of the Utility Model
[0005] The utility model provides a large-diameter detachable pressure test head, which solves the problem of the tooling used in the large-diameter pressure test of existing pressure vessels.
[0006] To achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A large-diameter detachable pressure test head includes a cylinder section. Elliptical heads are welded above both ends of the cylinder section. Flanges are welded on both sides of the cylinder section. A sealing groove is arranged at the lower end of the flange, and a sealing member is arranged in the sealing groove. The cylinder section is connected to the pressure vessel equipment surface through stud bolts.
[0008] Furthermore, the flange, the cylinder section, and the elliptical head are welded into an integral structure.
[0009] Furthermore, there is a welding groove between the cylinder section and the elliptical head, and the central angle of the groove is 60 degrees.
[0010] Furthermore, nuts are arranged at both ends of the stud bolts for fixation.
[0011] Furthermore, lifting lugs are arranged on the outer surface of the elliptical head.
[0012] Furthermore, the sealing member is circular, and a circular sealing groove matching the sealing member is arranged on the flange; the sealing member contacts the pressure vessel equipment.
[0013] Further, the seal is a rubber gasket or a polytetrafluoroethylene gasket.
[0014] The beneficial effects of the present utility model are as follows:
[0015] The connection between the connecting flange and the welded joint of the cylinder section, and the connection between the cylinder section and the elliptical head, which are also welded structures, jointly improve the plugging strength, ensure the reliability of the pressure test, and are simple and convenient to operate, reducing the test cost.
[0016] The technical solution of the present utility model has a simple structure, good practicability, and can effectively solve the problem of the pressure test for large-diameter nozzles of high-pressure pressure vessels. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 It is a schematic diagram of the overall device in the present utility model.
[0019] Figure 2 It is Figure 1 an enlarged view of part A in
[0020] Figure 3 It is a schematic diagram of the elliptical head structure in the present utility model.
[0021] Figure 4 It is a schematic diagram of the flange structure in the present utility model.
[0022] Explanation of the reference numerals in the drawings:
[0023] 1, nut; 2, stud; 3, seal; 4, flange; 5, cylinder section; 6, elliptical head; 7, lifting lug. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail the present utility model.
[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. The description of at least one exemplary embodiment below is actually only illustrative and in no way restricts the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present utility model. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.
[0027] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that, for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0028] In the description of the present utility model, it should be understood that the orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. usually indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the scope of protection of the present utility model: the orientation terms "inner, outer" refer to the inside and outside relative to the contour of each component itself.
[0029] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used herein.
[0030] The present utility model provides a technical solution: a large-diameter detachable pressure test head, as Figures 1-4 shown, comprising a nut 1, a stud 2, a seal 3, a flange 4, a cylinder section 5, an elliptical head 6, and a lifting lug 7; elliptical heads 6 are welded above both ends of the cylinder section 5, lifting lugs 7 are arranged on the outer surface of the elliptical heads 6, flanges 4 are welded on both sides of the cylinder section 5, an annular sealing groove is arranged at the lower end of the flange 4, an annular seal 3 is arranged in the sealing groove, bolt holes are formed in the flange 4, and the stud 2 passes through the bolt holes to connect the cylinder section with the surface of the pressure vessel equipment, and the two ends of the stud 2 are respectively fixed with nuts 1.
[0031] The flange 4 and the cylinder section 5 are of a welded structure and are in a full penetration welding form, and the welding strength is inspected by inspection methods such as non-destructive testing.
[0032] Welding grooves are arranged between the cylinder section 5 and the elliptical head 6, and the central angle of the groove is 60 degrees.
[0033] The assembly of the flange 4 and the cylinder section 5 and the elliptical head 6 is of a welded structure and is in a full penetration welding form, and the welding strength is inspected by inspection methods such as non-destructive testing.
[0034] Bolt holes are formed in the flange 4, and the assembly of the flange 4, the cylinder section 5 and the elliptical head 6 is connected to the surface of the pressure vessel equipment through the nut 1, the stud 2 and the seal 3, and hydraulic tightening is adopted for sealing.
[0035] The seal 3 is one of a rubber gasket or a polytetrafluoroethylene gasket.
[0036] The requirements for bolt connection processing are relatively low, the structure is simple, the installation and disassembly are convenient, and the test cost is reduced.
[0037] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.
Claims
1. A large diameter detachable pressure test head, characterized in that: The invention comprises a cylinder section (5), an elliptical head (6) is welded on the upper sides of both ends of the cylinder section (5), flanges (4) are welded on both sides of the cylinder section (5), a sealing groove is arranged at the lower end of the flange (4), a sealing member (3) is arranged in the sealing groove, and the cylinder section (5) is connected to the equipment surface of the pressure vessel through a stud (2).
2. The large-diameter detachable pressure test head according to claim 1 is characterized in that: The flange (4), the cylinder section (5) and the elliptical head (6) are welded into an integrated structure.
3. The large-diameter detachable pressure test head according to claim 2 is characterized in that: A welding groove is provided between the cylinder section (5) and the elliptical head (6), and the central angle of the groove is 60 degrees.
4. The large-diameter detachable pressure test head according to claim 1 is characterized in that: The flange (4) is provided with bolt holes, the studs (2) pass through the bolt holes, and nuts (1) are provided at both ends of the studs (2) for fixing.
5. The large-diameter detachable pressure test head according to claim 1 is characterized in that: The outer surface of the elliptical seal head (6) is provided with a lifting lug (7).
6. The large-diameter detachable pressure test head according to claim 1 is characterized in that: The sealing member (3) is in the shape of a ring, and the flange (4) is provided with a ring-shaped sealing groove that matches the sealing member (3); the sealing member (3) is in contact with the pressure vessel equipment.
7. The large-diameter detachable pressure test head according to claim 6 is characterized in that: The sealing element (3) is a rubber gasket or a polytetrafluoroethylene gasket.