A flange with a pressure test connection

Abstract

The utility model discloses a flange with pressure test connecting pipe relates to pipeline connection technical field. The utility model discloses a flange body and a group of pressure test connecting pipe, the wall thickness of flange body is equipped with at least one radial through -hole, and the through -hole is towards the axial line of flange body, and the one end of pressure test connecting pipe is set up in the through -hole, and the inner end of pressure test connecting pipe is equipped with the arc mouth of the same curvature as the inner wall of flange body, and the other end of pressure test connecting pipe is equipped with pressure test interface, and the fixed positioning arc -shaped piece of pressure test connecting pipe has. The utility model discloses the arc mouth of the complete consistency of the preset in -end pressure test connecting pipe and the curvature of flange inner wall, and the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece of the arc -shaped piece

Description

Technical Field

[0001] This utility model belongs to the field of pipeline connection technology, and in particular relates to a flange with a pressure testing connector. Background Technology

[0002] After installation or maintenance, pressure piping systems must undergo pressure testing to verify their sealing and strength. Pressure testing usually requires the installation of temporary interfaces at specific locations on the pipeline (such as flange connections) to connect equipment such as test pumps and pressure gauges.

[0003] Currently, the most common practice is to install a flange-type pressure testing joint at the flange bolt holes. Its typical structure is: a pipe section with a pressure testing interface (such as thread or flange) at one end and a welded end to the inner wall of the pipe at the other end. During installation, the pipe section needs to be inserted into the flange bolt holes or a specially opened through-hole so that its end extends into the pipe. Then, the pipe section is welded to the flange from the outside. Finally, the operator must enter the pipe or use special tools to cut and grind the protruding pipe end until it is flush with the inner wall of the pipe.

[0004] The above-mentioned technology has the following significant drawbacks: 1. Cumbersome procedures and low efficiency: Cutting and grinding must be done inside the pipe (or through complex internal operations), which is extremely difficult and time-consuming in large, long-distance or space-constrained pipes.

[0005] 2. Construction quality depends on manual labor and has poor consistency: The precision of cutting and grinding depends entirely on the skill level of the workers. It is difficult to guarantee a perfect smooth transition between the inner end of the connector and the inner wall of the pipe. Any unevenness or protrusion will form turbulence, erosion or scale accumulation points in subsequent operation, posing a long-term threat to the safety and lifespan of the pipeline.

[0006] 3. Inaccurate assembly positioning: The insertion depth of the pipe lacks an effective positioning benchmark and is estimated based solely on experience. If the insertion is too deep, it will increase the amount of internal cutting work; if the insertion is too shallow, the welding strength will be insufficient, and the external structure may interfere with the bolt installation.

[0007] Therefore, the industry urgently needs a pressure testing flange device that can achieve rapid and precise assembly and fundamentally eliminate the need for internal pipe cutting and grinding processes. Summary of the Invention

[0008] The purpose of this utility model is to provide a flange with a pressure testing connector. By pre-setting an arc end at the inner end of the pressure testing connector that is completely consistent with the curvature of the inner wall of the flange, and by precisely positioning it on the outside by attaching an arc-shaped piece to the outer surface of the flange, it is ensured that after welding and fixing, the inner end of the connector can automatically be perfectly flush with the inner wall of the pipe. This fundamentally eliminates the need for subsequent cutting and other finishing operations, which not only improves construction efficiency but also reduces pipework.

[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a flange with a pressure testing connector, comprising a flange body and a set of pressure testing connectors; The flange body has at least one radial through-hole on its wall thickness, and the through-hole faces the centerline of the flange body. One end of the pressure test connector is inserted through the opening, and the inner end of the pressure test connector is provided with an arc opening that matches the curvature of the inner wall of the flange body. The other end of the pressure test connector is provided with a pressure test interface. A positioning arc-shaped piece is fixed on the pressure test connector. The positioning arc-shaped piece is sleeved and fixed on the pressure test connector. The curvature of the positioning arc-shaped piece matches the outer surface of the flange body. When the positioning arc-shaped piece is in contact with the outer surface of the flange body, the arc end of the test pressure pipe is flush with the inner wall of the flange body.

[0010] Furthermore, the outer edge of the flange body is provided with several mounting ports, and the through-holes are misaligned with the several mounting ports on the flange body.

[0011] Furthermore, when the positioning arc-shaped piece is attached to the outer surface of the flange body, welding gaps are formed between the top and bottom of the positioning arc-shaped piece and the two end faces of the flange body.

[0012] Furthermore, the perforation is a straight circular hole structure, and the pressure test connector is a straight pipe structure.

[0013] Furthermore, a chamfer is provided at the outer edge of the arc at the inner end of the test pressure pipe, and a solder groove is formed between the chamfer and the inner end of the through-hole.

[0014] Furthermore, the pressure testing interface is a flange interface, a threaded interface, or a quick coupling interface.

[0015] This utility model has the following beneficial effects: 1. This utility model pre-sets an arc end with a curvature that is completely consistent with the inner wall curvature of the flange at the inner end of the pressure test pipe, and accurately positions it by attaching an arc-shaped piece to the outer surface of the flange. This ensures that after welding and fixing, the inner end of the pipe can automatically be perfectly flush with the inner wall of the pipe. This fundamentally eliminates the need for subsequent cutting and other finishing operations, which not only improves construction efficiency but also reduces pipework.

[0016] 2. This utility model, through the design of the positioning arc-shaped piece, serves as a natural physical positioning benchmark at the user end. Operators only need to insert the test pipe into the through-hole until the arc-shaped piece is completely in contact with the outer surface of the flange to immediately determine the unique correct position and achieve rapid assembly. At the manufacturing end, the arc-shaped piece itself can be set as the process benchmark for pipe processing, that is, the arc-shaped piece can be used as a benchmark to accurately process the arc-shaped opening at the inner end of the pipe, so that the product's accuracy is locked before assembly. This ensures the core function of the arc-shaped opening being flush with the inner wall of the flange from the source, forming a reliable closed loop from precise design to precise manufacturing and then to convenient assembly.

[0017] 3. This utility model connects the inner end arc of the pipe to the inner wall of the flange through welding and grinding, which greatly improves the flow state of the fluid in the pipe and effectively avoids turbulence, pulsation and local erosion. It not only reduces pressure loss, but more importantly, eliminates the potential fatigue cracking and media deposition risks caused by discontinuity of the inner wall, and significantly improves the overall operational safety and service life of the pressure pipeline system.

[0018] 4. Through the design of the arc-shaped piece, this utility model makes the arc-shaped piece the core calibrator, which standardizes and simplifies the entire processing flow of the pressure testing pipe, reduces the reliance on highly skilled workers, is particularly conducive to mass production, and can ensure that each product has completely consistent high precision, thereby reducing the overall manufacturing cost and improving product competitiveness.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a flange with a pressure testing connector according to the present invention; Figure 2 This is a schematic diagram of the pressure testing connector. The attached diagram lists the components represented by each number as follows: 1-Flange body, 2-Pressure test pipe, 101-Through, 102-Installation port, 201-Arch port, 202-Pressure test interface, 203-Positioning arc plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-2 As shown, this utility model is a flange with a pressure testing pipe, including a flange body 1 and a set of pressure testing pipes 2; The flange body 1 has at least one radial through-hole 101 on its wall thickness, and the through-hole 101 faces the axis of the flange body 1. One end of the pressure test pipe 2 is inserted into the through hole 101. The inner end of the pressure test pipe 2 is provided with an arc 201 that matches the curvature of the inner wall of the flange body 1. The other end of the pressure test pipe 2 is provided with a pressure test interface 202. A positioning arc-shaped piece 203 is fixed on the pressure test pipe 2. The positioning arc-shaped piece 203 is sleeved and fixed on the pressure test pipe 2. The curvature of the positioning arc-shaped piece 203 matches the outer surface of the flange body 1. When the positioning arc-shaped piece 203 is in contact with the outer surface of the flange body 1, the arc-shaped opening 201 at the inner end of the pressure test pipe 2 is flush with the inner wall of the flange body 1.

[0024] Among them, such as Figure 1 As shown, the outer edge of the flange body 1 is provided with several mounting ports 102, and the through port 101 is misaligned with the several mounting ports 102 on the flange body 1.

[0025] Among them, such as Figure 1 As shown, when the positioning arc-shaped piece 203 is attached to the outer surface of the flange body 1, welding gaps are formed between the top and bottom of the positioning arc-shaped piece 203 and the two end faces of the flange body 1.

[0026] Among them, such as Figure 1-2 As shown, the through-hole 101 is a straight circular hole structure, and the pressure test connector 2 is a straight pipe structure.

[0027] Among them, such as Figure 2 As shown, the outer edge of the arc 201 at the inner end of the pressure test pipe 2 is chamfered, and a solder groove is formed between the chamfer and the inner end of the through 101.

[0028] Among them, the pressure test interface 202 is a flange interface, a threaded interface, or a quick coupling interface.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flange with a pressure testing connector, comprising a flange body (1) and a set of pressure testing connectors (2), characterized in that: The flange body (1) has at least one radial through-hole (101) on its wall thickness, and the through-hole (101) faces the center line of the flange body (1). One end of the pressure test pipe (2) is inserted into the through hole (101), and the inner end of the pressure test pipe (2) is provided with an arc mouth (201) with the same curvature as the inner wall of the flange body (1). The other end of the pressure test pipe (2) is provided with a pressure test interface (202). A positioning arc-shaped piece (203) is fixed on the pressure test pipe (2). The positioning arc-shaped piece (203) is sleeved and fixed on the pressure test pipe (2). The curvature of the positioning arc-shaped piece (203) matches the outer surface of the flange body (1). When the positioning arc-shaped piece (203) is attached to the outer surface of the flange body (1), the arc end (201) of the inner end of the pressure test pipe (2) is flush with the inner wall of the flange body (1).

2. The flange with a pressure testing nozzle according to claim 1, characterized in that, The flange body (1) has several mounting ports (102) on its outer edge, and the through port (101) is misaligned with the mounting ports (102) on the flange body (1).

3. A flange with a pressure testing nozzle according to claim 1, characterized in that, When the positioning arc-shaped piece (203) is attached to the outer surface of the flange body (1), a welding gap is formed between the top and bottom of the positioning arc-shaped piece (203) and the two end faces of the flange body (1).

4. A flange with a pressure testing nozzle according to claim 1, characterized in that, The through-hole (101) is a straight circular hole structure, and the pressure test connector (2) is a straight pipe structure.

5. A flange with a pressure testing nozzle according to claim 1, characterized in that, The outer edge of the arc opening (201) at the inner end of the pressure test pipe (2) is chamfered, and a solder groove is formed between the chamfer and the inner end of the through opening (101).

6. A flange with a pressure testing nozzle according to claim 1, characterized in that, The pressure test interface (202) is a flange interface, a threaded interface, or a quick coupling interface.

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