Sealing flange for petrochemical pipeline connection

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a sealing flange for petrochemical pipeline connection, which comprises flange plates arranged on two petrochemical pipelines, a pressure plate I and a pressure plate II which are matched with each other are mounted on the flange plates, and clamping plates for clamping the flange plates are fixedly mounted on the pressure plate I and the pressure plate II. Positioning rods extending into the flange plate are fixedly installed on the first pressing plate and the second pressing plate. The first pressing plate and the second pressing plate which correspond to each other are arranged on the flange plates, so that the first pressing plate and the second pressing plate drive the clamping plate to clamp the two flange plates from the two side positions, and the two flange plates are reinforced; the extension plate is driven by the second pressure applying plate to extend into the moving groove, and then the extension plate extends into the limiting groove through deflection of the positioning plate, so that the two connected flange plates can be always kept connected, and the pipeline conveying efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field especially, a kind of sealing flange for petrochemical pipeline connection. BACKGROUND

[0002] Petrochemical pipeline for long-distance transmission, often by several sections of conventional length pipeline is connected by flange, flange is the part of interconnection between pipe and pipe.

[0003] Two petrochemical pipelines are connected by flange, multiple bolts are arranged between two flanges to realize connection, petrochemical pipeline can vibrate during conveying, and the flange plate is connected only by two bolts to be reinforced, which makes the bolt fall off during conveying due to vibration, and the connection degree of two flanges is limited due to the falling of bolt, further affecting the conveying of petrochemical pipeline. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of limited flange connection degree in the prior art and provides a sealing flange for petrochemical pipeline connection.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A sealing flange for petrochemical pipeline connection, comprising a flange plate arranged on two petrochemical pipelines, the flange plate is provided with a matched pressure plate one and a pressure plate two, the pressure plate one and the pressure plate two are fixedly provided with a clamp plate for clamping the flange plate, the pressure plate one and the pressure plate two are fixedly provided with a positioning rod extending into the flange plate, and the pressure plate one and the pressure plate two are connected by a locking piece.

[0007] Preferably, the pressure plate one and the pressure plate two are half-ring structures, the clamp plate is vertically arranged on both sides of the pressure plate one and the pressure plate two, and the clamp plate is provided with a rubber pad matched with the flange plate.

[0008] Preferably, the pressure plate one is fixedly provided with a sleeve at both ends, the pressure plate two is integrally connected with a moving plate extending into the sleeve, and the sleeve is threadedly connected with a locking bolt connected with the moving plate.

[0009] Preferably, the flange plate is provided with a positioning groove for accommodating the positioning rod, and the number of the positioning rods is six.

[0010] Preferably, the locking pin comprises a moving groove and a limiting groove which are communicated and arranged in the first pressing plate, the second pressing plate is fixedly provided with an extension plate which extends into the moving groove, and the extension plate is movably provided with a positioning plate which extends into the limiting groove, and a spring is welded between the positioning plate and the extension plate.

[0011] Preferably, the end of the extension plate away from the first pressing plate is connected with an extension plate pin shaft, and the limiting groove is arranged at one side of the moving groove.

[0012] Compared with the prior art, the sealing flange for petrochemical pipeline connection has the following advantages:

[0013] 1. The corresponding first pressing plate and second pressing plate are arranged on the flange plate, the first pressing plate and the second pressing plate drive the clamp plate to clamp the two flange plates from both sides, and the two flange plates are reinforced.

[0014] 2. The extension plate is driven by the second pressing plate to extend into the moving groove, and the positioning plate is deflected to extend into the limiting groove, thereby connecting the first pressing plate and the second pressing plate, so that the two connected flange plates can always be connected, and the efficiency of pipeline transportation is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural diagram of a sealing flange for petrochemical pipeline connection is provided for the utility model;

[0016] Figure 2 A sectional view of a sealing flange for petrochemical pipeline connection is provided for the utility model;

[0017] Figure 3 A flange plate sectional view of a sealing flange for petrochemical pipeline connection is provided for the utility model;

[0018] Figure 4 A side sectional view of a sealing flange for petrochemical pipeline connection is provided for the utility model.

[0019] In the drawing: 1, flange plate; 2, first pressing plate; 3, second pressing plate; 4, clamp plate; 5, sleeve; 6, moving plate; 7, moving groove; 8, limiting groove; 9, extension plate; 10, positioning plate; 11, spring; 12, positioning rod. 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Reference Figures 1-4The utility model provides a sealing flange for petrochemical pipeline connection, including the flange plate 1 set up on two petrochemical pipelines, according to the description of the utility model Figure 1 As shown in the drawings, two flange plates 1 are butted against each other, and two bolts are installed at the upper and lower ends of the flange plates 1, so that the two flange plates 1 are connected, and the pressing plate one 2 and the pressing plate two 3 do not contact the bolts during assembly;

[0022] The flange plate 1 is provided with the matching pressing plate one 2 and the pressing plate two 3, the pressing plate one 2 and the pressing plate two 3 are fixedly provided with a clamp plate 4 for clamping the flange plate 1, the pressing plate one 2 and the pressing plate two 3 have a semi-ring structure, the clamp plate 4 is vertically arranged at the two sides of the pressing plate one 2 and the pressing plate two 3, and the clamp plate 4 is provided with a rubber pad matched with the flange plate 1, the pressing plate one 2 and the pressing plate two 3 are sleeved on the flange plate 1, so that the clamp plate 4 can intercept and clamp the two flange plates 1 from the two sides, so that the two flange plates 1 are always connected, and the rubber pad on the clamp plate 4 can prevent the clamp plate 4 from excessively pressing the flange plate 1 when clamping the flange plate 1;

[0023] The pressing plate one 2 is fixedly provided with a sleeve 5 at the two ends, the pressing plate two 3 is integrally connected with a moving plate 6 extending into the sleeve 5, the sleeve 5 is threadedly connected with a locking bolt connected with the moving plate 6, when the pressing plate one 2 and the pressing plate two 3 are installed at the two sides of the flange plate 1, the pressing plate two 3 drives the moving plate 6 to extend into the sleeve 5, so that the pressing plate one 2 and the pressing plate two 3 are preliminarily connected;

[0024] The pressing plate one 2 and the pressing plate two 3 are fixedly provided with positioning rods 12 extending into the flange plate 1, the flange plate 1 is provided with positioning grooves for receiving the positioning rods 12, and the number of the positioning rods 12 is six, the circumferentially distributed positioning grooves on the flange plate 1 can increase the contact degree of the pressing plate one 2, the pressing plate two 3 and the flange plate 1;

[0025] The pressing plate one 2 and the pressing plate two 3 are connected by a locking member;

[0026] The locking member comprises a moving groove 7 and a limiting groove 8 communicated in the pressing plate one 2, the pressing plate two 3 is fixedly provided with an extension plate 9 extending into the moving groove 7, and the extension plate 9 is movably provided with a positioning plate 10 extending into the limiting groove 8, and the positioning plate 10 and the extension plate 9 are welded with a spring 11;

[0027] The end of the positioning plate 10 away from the pressing plate one 2 is connected with the extension plate 9 through a pin shaft, and the limiting groove 8 is arranged at one side of the moving groove 7;

[0028] By the deflection of the positioning plate 10 and extending into the limiting slot 8, the extension plate 9 can be locked in the moving slot 7, thereby connecting the pressing plate one 2 and the pressing plate two 3 on the flange plate 1, and surrounding and clamping the two flange plates 1 through the pressing plate one 2, the pressing plate two 3 and the clamp plate 4, so that the two flange plates 1 can be always connected during connection, and the conveying of the petrochemical pipeline is further improved.

[0029] The function principle of the utility model can be described by the following operation modes:

[0030] After the two flange plates 1 are connected, the two petrochemical pipelines are connected, and the two bolts are installed on the upper and lower ends of the flange plate 1;

[0031] The pressing plate one 2 is installed on the right side of the flange plate 1, so that the pressing plate one 2 drives the clamp plate 4 to extend to the right side wall of the two flange plates 1, and the pressing plate one 2 drives the positioning rod 12 to extend into the positioning slot;

[0032] The pressing plate two 3 is pressed to the left side of the flange plate 1, the pressing plate two 3 drives the positioning rod 12 and the moving plate 6 to extend into the positioning slot and the sleeve 5 respectively, and the pressing plate two 3 also drives the clamp plate 4 to extend to the left side wall of the two flange plates 1, the pressing plate two 3 drives the extension plate 9 to extend into the moving slot 7, when the extension plate 9 slides in the moving slot 7, the moving slot 7 will extrude the positioning plate 10, when the extension plate 9 drives the positioning plate 10 to extend into the limiting slot 8, the positioning plate 10 is disconnected with the pressing plate one 2, and the positioning plate 10 extends into the limiting slot 8 under the action of the spring 11;

[0033] The sleeve 5 and the moving plate 6 are connected by the locking bolt.

[0034] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A sealing flange for connecting petrochemical pipelines, comprising flanges (1) disposed on two petrochemical pipelines, characterized in that, The flange (1) is equipped with a matching pressure plate one (2) and pressure plate two (3). A clamping plate (4) for clamping the flange (1) is fixedly installed on the pressure plate one (2) and pressure plate two (3). A positioning rod (12) extending into the flange (1) is fixedly installed on the pressure plate one (2) and pressure plate two (3). The pressure plate one (2) and pressure plate two (3) are connected by a locking member.

2. A sealing flange for petrochemical pipeline connection according to claim 1, characterized in that, The pressure plate one (2) and pressure plate two (3) are semi-ring structure. The clamp plate (4) is vertically set on both sides of the pressure plate one (2) and pressure plate two (3), and the clamp plate (4) is provided with a rubber pad that fits against the flange (1).

3. A sealing flange for petrochemical pipeline connection according to claim 1, characterized in that, Sleeves (5) are fixedly installed on both ends of the pressure plate one (2), and a movable plate (6) extending into the sleeve (5) is integrally connected to the pressure plate two (3). A locking bolt connected to the movable plate (6) is threaded on the sleeve (5).

4. A sealing flange for petrochemical pipeline connection according to claim 1, characterized in that, The flange (1) has a positioning groove for accommodating the positioning rods (12), and there are six positioning rods (12).

5. A sealing flange for petrochemical pipeline connection according to claim 1, characterized in that, The locking component includes a movable groove (7) and a limiting groove (8) that are opened in and connected within the first pressure plate (2). An extension plate (9) extending into the movable groove (7) is fixedly installed on the second pressure plate (3), and a positioning plate (10) extending into the limiting groove (8) is movably installed on the extension plate (9). A spring (11) is welded between the positioning plate (10) and the extension plate (9).

6. A sealing flange for petrochemical pipeline connection according to claim 5, characterized in that, The end of the positioning plate (10) away from the pressure plate (2) is connected to the extension plate (9) by a pin, and the limiting groove (8) is opened on one side of the moving groove (7).

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