Safety reinforcing device for flange connection of chemical pipeline

Abstract

The utility model provides a chemical pipeline flange connection safety reinforcing device, which relates to the technical field of chemical pipeline connection and comprises a first connecting pipe and a limiting reinforcing structure. A second connecting pipe is arranged at one end of the first connecting pipe, a first flange plate and a second flange plate are arranged on the outer sides of the opposite ends of the first connecting pipe and the second connecting pipe respectively, the first flange plate and the second flange plate are fixedly connected through screws and nuts, and meanwhile limiting reinforcing structures are arranged on the first flange plate and the second flange plate. The limiting and reinforcing structure comprises the following components: a connecting outer disc which is fixedly connected to the outer side of the first flange plate, and a fixed support cylinder which is fixedly connected between the connecting outer disc and the first flange plate. And when the bolts are loosened, the two groups of flanges are still tightly attached, so that the anti-loosening capability of the connecting part is improved, and the dynamic stability and the sealing reliability of flange connection are obviously enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical pipeline connection technical field, more specifically, it is especially related to a chemical pipeline flange connection safety reinforcing device. BACKGROUND

[0002] In the chemical production process, the chemical pipeline bears the important task of conveying various dangerous media with corrosive, high pressure, flammable and explosive characteristics. As one of the common ways of chemical pipeline connection, flange connection has the advantages of convenient installation and easy disassembly, but in actual use, due to the influence of medium pressure impact, temperature change, pipeline vibration and external environmental factors, the flange connection is prone to looseness, leakage and other safety hazards. Once leakage occurs, not only will it cause waste of chemical raw materials, but also may cause serious safety accidents, which will pose a great threat to personnel life safety and environment.

[0003] Based on the above, the existing chemical pipeline flange connection structure often has unsatisfactory reinforcing effect when facing complex working conditions, and some reinforcing devices only rely on simple bolt fastening, which cannot effectively cope with the vibration and displacement of the pipeline, so that the bolt is prone to looseness, and thus the sealing performance of the flange connection is reduced. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the present disclosure relates to a chemical pipeline flange connection safety reinforcing device to solve the problem that the flange connection only relies on simple bolt fastening and cannot effectively cope with the vibration and displacement of the pipeline, so that the bolt is prone to looseness. By setting the limiting reinforcing structure, the flange plate is provided with all-round reinforcing effect by the multiple uniformly distributed reinforcing members, so that the two groups of flanges are still closely attached when the bolt is loosened, the anti-looseness ability of the connection part is improved, and the dynamic stability and sealing reliability of the flange connection are significantly enhanced. Through the setting of the alarm assembly, the specific leakage flange point can be accurately locked, avoiding the time-consuming and labor-consuming disadvantages of traditional large-area investigation, so that the staff can quickly arrive at the leakage site, greatly improving the fault positioning efficiency and providing a reliable basis for rapid maintenance.

[0005] The utility model relates to a chemical pipeline flange connection safety reinforcing device, which is achieved by the following specific technical means:

[0006] The first aspect of the present disclosure provides a chemical pipeline flange connection safety reinforcing device, which specifically comprises: a first connecting pipe and a limiting reinforcing structure.

[0007] One end of the first connecting pipe is provided with a second connecting pipe, and the outer side of the opposite end of the first connecting pipe and the second connecting pipe is respectively provided with a first flange plate and a second flange plate, the first flange plate and the second flange plate are fixedly connected by screws and nuts, and the first flange plate and the second flange plate are provided with a limiting reinforcing structure, and the limiting reinforcing structure comprises the following components:

[0008] The connecting outer disc is fixedly connected to the outer side of the first flange plate, and a fixed support cylinder is fixedly connected between the connecting outer disc and the first flange plate, and a movable sliding hole is formed in the fixed support cylinder;

[0009] The connecting sliding rod is slidably installed in the movable sliding hole, one end of the connecting sliding rod is fixedly connected with a connecting handle, and the other end of the connecting sliding rod is fixedly connected with a U-shaped clamping plate;

[0010] The fixed convex disc is fixedly connected to the outer side of the second flange plate, and a through slot is formed at the four corners of the outer side of the fixed convex disc, and a locking clamping groove is formed in the bottom of the through slot, and the U-shaped clamping plate is clamped in the locking clamping groove.

[0011] In at least some embodiments, the outer side of the connecting sliding rod is fixedly connected with a fixed convex ring, and the inside of the fixed support cylinder is provided with an extrusion groove, and the outer side wall of the fixed convex ring is matched with the inner side wall of the extrusion groove.

[0012] In at least some embodiments, the inside of the extrusion groove is provided with a spring.

[0013] In at least some embodiments, the contact end of the first connecting pipe and the second connecting pipe is provided with an alarm assembly, the alarm assembly comprises a sealing gasket, an annular ring and an exhaust pipe, the contact end of the first connecting pipe and the second connecting pipe is provided with a sealing gasket, the outer side of the sealing gasket is provided with an annular ring, and the annular ring is fixedly connected with an exhaust pipe.

[0014] In at least some embodiments, the top of the exhaust pipe is fixedly connected with a fixed carrier frame, the inside of the fixed carrier frame is provided with an inner cavity, and the top of the inner cavity is fixedly installed with an alarm.

[0015] In at least some embodiments, the inner cavity is provided with a floating plate, the top of the floating plate is fixedly connected with a contact rod, and the contact rod is arranged directly below the alarm.

[0016] The utility model provides a kind of chemical pipeline flange connection safety reinforcing device, and its beneficial effects are as follows:

[0017] 1. By setting limiting reinforcing structure, it provides all-round reinforcing effect to flange plate by multiple evenly distributed reinforcing members, so that the two groups of flanges are still closely adhered when bolt is loosened, the anti-loosening ability of connection part is improved, and the dynamic stability and sealing reliability of flange connection are significantly enhanced.

[0018] 2. Through the setting of the alarm assembly, the specific leakage flange point can be accurately locked, the disadvantages of traditional large-area checking are abandoned, time and labor are saved, the staff can quickly arrive at the leakage site, the fault positioning efficiency is greatly improved, and reliable basis is provided for rapid maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the utility model.

[0020] Figure 2 is a split structural schematic diagram of the utility model.

[0021] Figure 3 is a part assembly enlarged structural schematic diagram of the limiting and reinforcing structure of the utility model.

[0022] Figure 4 is a sealing gasket and ring structure schematic diagram in the alarm assembly of the utility model.

[0023] Figure 5 is a part assembly structural schematic diagram of the alarm assembly of the utility model.

[0024] In the drawing, the corresponding relationship between the component name and the drawing number is:

[0025] 1, first connecting pipe;

[0026] 101, first flange plate;

[0027] 2, second connecting pipe;

[0028] 201, second flange plate;

[0029] 3, screw nut;

[0030] 4, limiting and reinforcing structure;

[0031] 401, connecting outer disc; 4011, fixed support cylinder; 4012, movable sliding hole;

[0032] 402, connecting sliding rod; 4021, connecting handle; 4022, fixed convex ring; 4023, extrusion groove; 4024, spring; 4025, U-shaped clamping plate;

[0033] 403, fixed convex disc; 4031, through slot; 4032, locking clamping groove;

[0034] 5, alarm assembly;

[0035] 501, sealing gasket;

[0036] 502, ring; 5021, exhaust pipe;

[0037] 503, fixed carrier frame; 5031, inner cavity;

[0038] 504, floating plate; 5041, contact rod; 5042, alarm. DETAILED DESCRIPTION

[0039] The embodiments of the present application will be further described below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0040] Example one: as shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 5 :

[0041] The utility model provides a kind of chemical pipeline flange connection safety reinforcing device, comprising: first connecting pipe 1 and limiting reinforcing structure 4;

[0042] One end of first connecting pipe 1 is equipped with second connecting pipe 2, and the outer side of the opposite end of first connecting pipe 1 and second connecting pipe 2 is equipped with first flange plate 101 and second flange plate 201 respectively, first flange plate 101 and second flange plate 201 are fixedly connected by screw nut 3, while first flange plate 101 and second flange plate 201 are equipped with limiting reinforcing structure 4, limiting reinforcing structure 4 includes the following components:

[0043] Connecting outer disc 401: fixedly connected to the outer side of first flange plate 101, connecting outer disc 401 and first flange plate 101 are fixedly connected with fixed support cylinder 4011, and movable sliding hole 4012 is formed in fixed support cylinder 4011;

[0044] Connecting sliding rod 402: slidingly installed in movable sliding hole 4012, one end of connecting sliding rod 402 is fixedly connected with connecting handle 4021, and the other end of connecting sliding rod 402 is fixedly connected with U-shaped clamping plate 4025;

[0045] Fixed convex disc 403: fixedly connected to the outer side of second flange plate 201, through slot 4031 is formed at the outer side of four sides of fixed convex disc 403, lock position clamping groove 4032 is formed at the bottom of through slot 4031, and U-shaped clamping plate 4025 is clamped in lock position clamping groove 4032.

[0046] Connecting sliding rod 402 is fixedly connected with fixed convex ring 4022 on the outer side, extrusion groove 4023 is formed in the inside of fixed support cylinder 4011, and the outer side wall of fixed convex ring 4022 is fitted with the inner side wall of extrusion groove 4023.

[0047] Spring 4024 is arranged in the inside of extrusion groove 4023.

[0048] The sealing gasket 501 is placed between the first flange plate 101 and the second flange plate 201, and then the connecting handle 4021 is rotated to rotate the U-shaped clamping plate 4025 by 180 degrees. At this time, the connecting handle 4021 is pushed to make the U-shaped clamping plate 4025 pass through the through slot 4031, and then it is rotated to reset. At this time, the connecting handle 4021 is loosened. When the connecting handle 4021 is pushed, the fixed convex ring 4022 drives the spring 4024 in the extrusion slot 4023 to be extruded, so that the spring 4024 is elastically deformed. When the extrusion is lost, the spring 4024 releases the elasticity at this time, thereby pushing the fixed convex ring 4022 to move. The fixed convex ring 4022 drives the U-shaped clamping plate 4025 to reset and clamp into the locking clamping slot 4032 through the connecting slide rod 402, and then the screw nut 3 is tightened, thereby completing the connection of the first flange plate 101 and the second flange plate 201. When the screw nut 3 is loosened, the first flange plate 101 and the second flange plate 201 can still be tightly fitted under the cooperation of the U-shaped clamping plate 4025 and the locking clamping slot 4032. When disassembling, the connecting handle 4021 is pushed to make the U-shaped clamping plate 4025 disengage from the locking clamping slot 4032, and then it is rotated to 180 degrees. The U-shaped clamping plate 4025 enters the through slot 4031 under the action of the spring 4024, and then the screw nut 3 is screwed to complete the disassembly of the two.

[0049] In example two, on the basis of example one, as shown in Figure 4 and Figure 5 The first connecting pipe 1 and the second connecting pipe 2 are provided with an alarm assembly 5 at the contact end. The alarm assembly 5 includes a sealing gasket 501, an annular ring 502, and an exhaust pipe 5021. The first connecting pipe 1 and the second connecting pipe 2 are provided with the sealing gasket 501 at the contact end. The outer side of the sealing gasket 501 is provided with the annular ring 502. The annular ring 502 is fixedly connected with the exhaust pipe 5021.

[0050] The top of the exhaust pipe 5021 is fixedly connected with a fixed carrier frame 503. The inside of the fixed carrier frame 503 is provided with an inner cavity 5031. The top of the inner cavity 5031 is fixedly installed with an alarm 5042.

[0051] The inner cavity 5031 is provided with a floating plate 504. The top of the floating plate 504 is fixedly connected with a contact rod 5041. The contact rod 5041 is arranged directly below the alarm 5042.

[0052] The annular ring 502 is sealed outside the sealing gasket 501, when the chemical gaseous medium leaks out through the sealing gasket 501, at this time, the gaseous medium enters the annular ring 502, so that the internal pressure of the annular ring 502 is increased, with the continuous accumulation of the leakage medium, the internal pressure of the annular ring is changed significantly, and then enters the inner cavity 5031 through the exhaust pipe 5021, and finally the floating plate 504 is dragged up under the action of pressure rise, so that the floating plate 504 drives the contact rod 5041 to touch the alarm 5042, so that the alarm 5042 sends a signal to the control end, and then the specific leakage flange point can be accurately locked.

[0053] The specific use mode and effect of the embodiment are as follows:

[0054] In the utility model, the sealing gasket 501 is placed between the first flange plate 101 and the second flange plate 201, then the U-shaped clamping plate 4025 is rotated 180 degrees by rotating the connecting handle 4021, at this time, the connecting handle 4021 is pushed to make the U-shaped clamping plate 4025 pass through the through slot 4031, then it is rotated to reset, at this time, the connecting handle 4021 is loosened, the fixed convex ring 4022 drives the spring 4024 in the extrusion slot 4023 to be extruded when the connecting slide rod 402 is driven to push the connecting handle 4021, so that the spring 4024 is elastically deformed, when the extrusion is lost, the spring 4024 releases the elasticity at this time, so as to push the fixed convex ring 4022 to move, the fixed convex ring 4022 drives the U-shaped clamping plate 4025 to reset and clamp into the locking clamping groove 4032 through the connecting slide rod 402, then the screw nut 3 is fastened again, so that the connection of the first flange plate 101 and the second flange plate 201 is completed, when the screw nut 3 is loosened, the flange plate is provided with all-round reinforcing effect by the plurality of uniformly distributed reinforcing members, so that the two groups of flanges are still closely attached when the bolt is loosened, the anti-loosening ability of the connection part is improved, and the dynamic stability and sealing reliability of the flange connection are significantly enhanced.

Claims

1. A chemical pipeline flange connection safety reinforcing device, comprising: The first connecting pipe (1) and the limiting reinforcing structure (4); One end of the first connecting pipe (1) is provided with the second connecting pipe (2), and the outer sides of the opposite ends of the first connecting pipe (1) and the second connecting pipe (2) are respectively provided with the first flange plate (101) and the second flange plate (201), the first flange plate (101) and the second flange plate (201) are fixedly connected through the screw nut (3), and the first flange plate (101) and the second flange plate (201) are provided with the limiting reinforcing structure (4), characterized by that the limiting reinforcing structure (4) comprises the following components: The connecting outer disc (401) is fixedly connected to the outer side of the first flange plate (101), and the connecting outer disc (401) and the first flange plate (101) are fixedly connected with the fixed supporting cylinder (4011), and the fixed supporting cylinder (4011) is provided with the movable sliding hole (4012); The connecting sliding rod (402) is slidably installed in the movable sliding hole (4012), one end of the connecting sliding rod (402) is fixedly connected with the connecting handle (4021), and the other end of the connecting sliding rod (402) is fixedly connected with the U-shaped clamping plate (4025); The fixed convex disc (403) is fixedly connected to the outer side of the second flange plate (201), the outer side of the fixed convex disc (403) is provided with the through slot (4031) at the four corners, the bottom of the through slot (4031) is provided with the locking clamping groove (4032), and the U-shaped clamping plate (4025) is clamped in the locking clamping groove (4032).

2. The chemical pipeline flange connection safety reinforcing device according to claim 1, characterized in that: The outer side of the connecting sliding rod (402) is fixedly connected with the fixed convex ring (4022), the inside of the fixed supporting cylinder (4011) is provided with the extrusion groove (4023), and the outer side wall of the fixed convex ring (4022) is matched with the inner side wall of the extrusion groove (4023).

3. The chemical pipeline flange connection safety reinforcing device according to claim 2, characterized in that: The inside of the extrusion groove (4023) is provided with the spring (4024).

4. The chemical pipeline flange connection safety reinforcing device according to claim 1, characterized in that: The contact end of the first connecting pipe (1) and the second connecting pipe (2) is provided with the alarm assembly (5), the alarm assembly (5) comprises a sealing gasket (501), an annular ring (502) and an exhaust pipe (5021), the contact end of the first connecting pipe (1) and the second connecting pipe (2) is provided with the sealing gasket (501), the outer side of the sealing gasket (501) is provided with the annular ring (502), and the annular ring (502) is fixedly connected with the exhaust pipe (5021).

5. The chemical piping flange connection safety reinforcing device according to claim 4, characterized in that: The top of the exhaust pipe (5021) is fixedly connected with the fixed carrier frame (503), the inside of the fixed carrier frame (503) is provided with the inner cavity (5031), and the top of the inner cavity (5031) is fixedly installed with the alarm (5042).

6. The chemical piping flange connection safety reinforcing device according to claim 5, characterized in that: The inner cavity (5031) is provided with the floating plate (504), the top of the floating plate (504) is fixedly connected with the contact rod (5041), and the contact rod (5041) is arranged directly below the alarm (5042).

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