Flange structure of medium-high pressure container equipment
Through the use of the O -type circle and O -type circle slot sealing structure in the flange structure of the high -voltage container equipment, the problem of repeated assembly and welding materials in the pressure experiment in the pressure experiment was solved. Efficiency.
Patent Information
- Application Number
- CN202421205171.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The flange welding lip structure of traditional medium and high pressure container equipment requires repeated assembly of fasteners in pressure experiments, which takes a long time, increases labor costs, and wastes welding materials and increases non-destructive testing costs.
Adopt the sealing structure of the O -type and O -type circle grooves between the upper flange and the lower flange to avoid welding connection, and directly perform pressure experiments. After the connection, you only need to install the fastener once to facilitate sealing and experiments.
Reduce the waste of welding materials and non -destructive testing costs, reduce labor costs, shorten the product production cycle, and improve production efficiency.
Smart Images
Figure CN222416501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-pressure container equipment, in particular to a flange structure of medium- and high-pressure container equipment. Background Art
[0002] Special equipment high-pressure vessels, flange welding lip structures are widely used. The traditional existing pressure testing technical solution is: the pressure vessel manufacturer needs to conduct pressure tests on high-pressure vessel equipment with equipment flanges as welding lip structures, use flange welding lips to weld and connect, and then perform 100% PT inspection on the welds, and then use the fasteners between the flanges to make further connections. When the high-pressure vessel pressure test is qualified, it is necessary to unscrew the fasteners, and then clean and grind the welds produced by the connection between the welding lips, and then connect the flanges with fasteners before shipping the products. Therefore, it is necessary to repeatedly assemble the fasteners, which is time-consuming, significantly increases labor costs, wastes welding materials, and increases non-destructive testing costs. Utility Model Content
[0003] In view of the above problems existing in the prior art, the medium and high pressure container equipment flange structure provided by the present invention is used to overcome the above defects in the prior art.
[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:
[0005] A flange structure for medium and high pressure container equipment comprises an upper flange and a lower flange, wherein a first welding lip ring is arranged on the inner side of the lower end surface of the upper flange, a second welding lip ring is arranged on the inner side of the upper end surface of the lower flange, an O-ring groove is arranged on the upper end surface of the second welding lip ring, an O-ring is arranged inside the O-ring groove on the second welding lip ring, a plurality of bolt holes distributed in an annular shape are arranged on the outer side of the lower end surface of the upper flange and the outer side of the upper end surface of the lower flange, and fastening bolts are arranged between the bolt holes on the upper flange and the bolt holes on the lower flange.
[0006] In one of the embodiments, two inner and outer O-ring grooves are provided on the second welding lip ring, and the center point of the O-ring groove coincides with the center point of the second welding lip ring.
[0007] In one of the embodiments, the outer edges of the first welding lip ring and the second welding lip ring are chamfered respectively, and the corners at the upper and lower ends of the O-ring groove are rounded respectively.
[0008] In one of the embodiments, a first protrusion ring and a second protrusion ring are respectively arranged above the first welding lip ring and below the second welding lip ring, and the first protrusion ring and the second protrusion ring are respectively integrally formed with the first welding lip and the second welding lip, and grooves are respectively arranged on the outer end surfaces of the two first protrusion rings, and the inner ends of the two second protrusion rings are chamfered at the corresponding corners close to the upper flange and the lower flange.
[0009] In one embodiment, step rings are respectively provided on the lower end surface of the upper flange and the upper end surface of the lower flange, the second protrusion ring on the first welding lip ring is welded to the step ring on the upper flange, and the second protrusion ring on the second welding lip ring is welded to the step ring on the lower flange.
[0010] In one of the embodiments, the outer diameter of the step ring is smaller than the outer diameters of the first welding lip ring and the second welding lip ring, and the outer edges of the step ring are chamfered.
[0011] In one embodiment, the step ring is integrally formed with the upper flange and the lower flange, a first welding groove is provided at the inner end of the step ring, and a second welding groove is provided at the middle position of the outer end. The first welding groove and the chamfer of the inner end of the second protrusion ring are arranged in correspondence with each other up and down and are welded, and the second welding groove and the outer end surface of the second protrusion ring are arranged in correspondence with each other up and down and are welded.
[0012] In one of the embodiments, an outer edge of the upper end of the upper flange and an outer edge of the lower end of the lower flange are respectively provided with an annular notch.
[0013] In one of the embodiments, the bolt holes on the upper flange are arranged one by one with the bolt holes on the lower flange, the bolt holes on the upper flange are arranged in a circular array relative to the center point of the upper flange, and the bolt holes on the lower flange are arranged in a circular array relative to the center point of the lower flange.
[0014] In one embodiment, the upper flange and the lower flange are respectively provided with leak detection holes inside, and the leak detection holes penetrate from the outer circumferential surface of the upper flange or the lower flange to the lower end surface of the upper flange or the upper end surface of the lower flange.
[0015] Compared with the prior art, the utility model provides a medium and high pressure container equipment flange structure. The pressure vessel manufacturer performs pressure tests on equipment flange welding lip structure equipment. The equipment flange welding lips are not welded together. Innovative O-rings and O-ring grooves are used to seal the gap between the two welding lips for pressure testing. This not only avoids the waste of welding materials caused by welding connection, saves testing costs, but also greatly reduces the required labor costs. Secondly, the fasteners connecting the two flanges only need to be installed once, and there is no need to repeatedly install the fasteners, which further reduces the labor costs consumed, while also shortening the product production cycle and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure after the upper flange and the first welding lip ring are welded in the utility model;
[0017] Figure 2 It is a schematic diagram of the structure after the lower flange and the second welding lip ring in the utility model are welded;
[0018] Figure 3 It is a schematic diagram of the longitudinal cross-section structure of the second welding lip ring in the utility model;
[0019] Figure 4 for Figure 2 Schematic diagram of the local structure at point A. DETAILED DESCRIPTION
[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.
[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0025] like Figure 1-4 As shown, for the convenience of description, the directions of "up", "down", "left", "right", "front" and "rear" in the present invention are based on the attached Figure 1 The directions shown shall prevail;
[0026] The flange structure of medium and high pressure container equipment comprises an upper flange 1 and a lower flange 2, wherein a first welding lip ring 3 is arranged on the inner side of the lower end surface of the upper flange 1, a second welding lip ring 4 is arranged on the inner side of the upper end surface of the lower flange 2, an O-ring groove 5 is arranged on the upper end surface of the second welding lip ring 4, an O-ring 6 is arranged inside the O-ring groove 5 on the second welding lip ring 4, several bolt holes 7 distributed in an annular shape are arranged on the outer side of the lower end surface of the upper flange 1 and the outer side of the upper end surface of the lower flange 2, and fastening bolts are arranged between the bolt holes 7 on the upper flange 1 and the bolt holes 7 on the lower flange 2 to realize the connection between the upper flange 1 and the lower flange 2. After the upper flange 1 and the lower flange 2 are connected, the O-ring 6 is used to realize the sealing between the first welding lip ring 3 and the second welding lip ring 4, thereby facilitating the pressure test between the upper flange 1 and the lower flange 2.
[0027] In this embodiment, in order to further improve the sealing between the upper flange 1 and the lower flange 2 , two inner and outer O-ring grooves 5 are designed on the second welding lip ring 4 , and the center point of the O-ring groove 5 coincides with the center point of the second welding lip ring 4 .
[0028] In this embodiment, the outer edges of the first welding lip ring 3 and the second welding lip ring 4 are chamfered respectively, and the corners at the upper and lower ends of the O-ring groove 5 are rounded respectively.
[0029] In this embodiment, a first protrusion ring 8 and a second protrusion ring 9 are respectively arranged above the first welding lip ring 3 and below the second welding lip ring 4, and the first protrusion ring 8 and the second protrusion ring 9 are respectively formed integrally with the first welding lip 3 and the second welding lip 4, and grooves are respectively arranged on the outer end surfaces of the two first protrusion rings 8, and the inner ends of the two second protrusion rings 9 are respectively chamfered at the corners close to the upper flange 1 and the lower flange 2.
[0030] Furthermore, step rings 10 are respectively provided on the lower end surface of the upper flange 1 and the upper end surface of the lower flange 2, the second protrusion ring 9 located on the first welding lip ring 3 is welded to the step ring 10 on the upper flange 1, and the second protrusion ring 9 located on the second welding lip ring 4 is welded to the step ring 10 on the lower flange 2.
[0031] Preferably, the outer diameter of the step ring 10 is smaller than the outer diameters of the first welding lip ring 3 and the second welding lip ring 4, and the outer edges of the step ring 10 are chamfered.
[0032] In this embodiment, the step ring 10 is integrally formed with the upper flange 1 and the lower flange 2, respectively. A first welding groove 11 is provided at the inner end of the step ring 10, and a second welding groove 12 is provided at the middle position of the outer end. The first welding groove 11 and the chamfered part of the inner end of the second protruding ring 9 are arranged correspondingly up and down and welded, and the second welding groove 12 and the outer end surface of the second protruding ring 9 are arranged correspondingly up and down and welded.
[0033] In this embodiment, an annular notch is provided on the outer edge of the upper end of the upper flange 1 and the outer edge of the lower end of the lower flange 2 to facilitate the installation of bolts for connecting the upper flange 1 and the lower flange 2 .
[0034] In this embodiment, the bolt holes 7 on the upper flange 1 are arranged one by one with the bolt holes 7 on the lower flange 2. The bolt holes 7 on the upper flange 1 are arranged in a circular array relative to the center point of the upper flange 1, and the bolt holes 7 on the lower flange 2 are arranged in a circular array relative to the center point of the lower flange 2.
[0035] In this embodiment, leak detection holes 13 are respectively provided inside the upper flange 1 and the lower flange 2. The leak detection holes 13 penetrate from the outer circumferential surface of the upper flange 1 or the lower flange 2 to the lower end surface of the upper flange 1 or the upper end surface of the lower flange 2. The leak detection holes 13 are provided to facilitate the detection of the welding quality of the welds on both the inner and outer sides of the first welding lip ring 3 and the second welding lip ring 4 to ensure the quality of the products leaving the factory.
[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. Medium and high pressure vessel equipment flange structure, characterized in that: It comprises an upper flange and a lower flange, wherein a first welding lip ring is arranged on the inner side of the lower end surface of the upper flange, a second welding lip ring is arranged on the inner side of the upper end surface of the lower flange, an O-ring groove is arranged on the upper end surface of the second welding lip ring, an O-ring is arranged inside the O-ring groove on the second welding lip ring, a plurality of bolt holes distributed in an annular shape are arranged on the outer side of the lower end surface of the upper flange and the outer side of the upper end surface of the lower flange, and fastening bolts are arranged between the bolt holes on the upper flange and the bolt holes on the lower flange.
2. The flange structure of medium and high pressure container equipment according to claim 1 is characterized in that: The second welding lip ring is provided with two inner and outer O-ring grooves, and the center point of the O-ring groove coincides with the center point of the second welding lip ring.
3. The flange structure of medium and high pressure container equipment according to claim 1 is characterized in that: The outer edges of the first welding lip ring and the second welding lip ring are chamfered respectively, and the corners at the upper and lower ends of the O-ring groove are rounded respectively.
4. The flange structure of medium and high pressure container equipment according to claim 1, characterized in that: A first protrusion ring and a second protrusion ring are respectively arranged above the first welding lip ring and below the second welding lip ring in sequence, and the first protrusion ring and the second protrusion ring are respectively integrally formed with the first welding lip and the second welding lip, and grooves are respectively arranged on the outer end surfaces of the two first protrusion rings, and the inner ends of the two second protrusion rings are chamfered at the corresponding corners close to the upper flange and the lower flange.
5. The flange structure of medium and high pressure container equipment according to claim 4 is characterized in that: Step rings are respectively arranged on the lower end surface of the upper flange and the upper end surface of the lower flange, the second protrusion ring on the first welding lip ring is welded to the step ring on the upper flange, and the second protrusion ring on the second welding lip ring is welded to the step ring on the lower flange.
6. The flange structure of medium and high pressure container equipment according to claim 5, characterized in that: The outer diameter of the step ring is smaller than the outer diameters of the first welding lip ring and the second welding lip ring, and the outer edges of the step ring are chamfered respectively.
7. The flange structure of medium and high pressure container equipment according to claim 6, characterized in that: The step ring is integrally formed with the upper flange and the lower flange respectively, a first welding groove is provided at the inner end of the step ring, and a second welding groove is provided at the middle position of the outer end, the first welding groove and the chamfer of the inner end of the second protrusion ring are arranged correspondingly up and down and welded, and the second welding groove and the outer end surface of the second protrusion ring are arranged correspondingly up and down and welded.
8. The flange structure of medium and high pressure container equipment according to claim 1, characterized in that: The outer edge of the upper end of the upper flange and the outer edge of the lower end of the lower flange are respectively provided with an annular notch.
9. The flange structure of medium and high pressure container equipment according to claim 1, characterized in that: The bolt holes on the upper flange are arranged one by one with the bolt holes on the lower flange. The bolt holes on the upper flange are arranged in a circular array relative to the center point of the upper flange, and the bolt holes on the lower flange are arranged in a circular array relative to the center point of the lower flange.
10. The flange structure of medium and high pressure container equipment according to claim 1, characterized in that: The upper flange and the lower flange are respectively provided with leak detection holes inside, and the leak detection holes penetrate from the outer circumferential surface of the upper flange or the lower flange to the lower end surface of the upper flange or the upper end surface of the lower flange.