Leaking stoppage device for pipeline flange

Abstract

The utility model discloses a leaking stoppage device for a pipeline flange, and relates to the technical field of flange leaking stoppage. Comprising a fastening belt, the fastening belt is bound to the outer surface of a flange, a rectangular box is fixedly installed on the rear side face of the left side end of the fastening belt, the right side end of the fastening belt is movably inserted into the rectangular box, a pressing mechanism is fixedly installed in the rectangular box, and a one-way liquid inlet valve is fixedly installed on the front side wall of the fastening belt; a rectangular block is fixedly installed on the outer surface of the one-way liquid inlet valve and fixedly connected with the front side face of the fastening belt, and clamping mechanisms are arranged on the upper side face and the lower side face of the rectangular block correspondingly. The leakage stopping device is easy and rapid to manufacture, suitable for flanges of various sizes, high in universality, free of customization aiming at leakage flanges, capable of reducing cost of leakage stopping clamps, simple in installation process, capable of saving operation time and not related to special fire operation, leakage points can be rapidly handled and completed, leakage and fire catching risks in the operation process are reduced, and the working efficiency is improved. And safe and stable operation of a production device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of flange leakage plugging, in particular to a leakage plugging device for pipeline flanges. Background Art

[0002] Flange is also called flange flange or flange. Flange is a part that connects shafts to each other and is used to connect pipe ends. It is also used on the inlet and outlet of equipment to connect two devices, such as reducer flange. Flange connection or flange joint refers to a detachable connection that is connected by flange, gasket and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline devices. It refers to the inlet and outlet flanges of equipment. There are holes on the flange, and bolts connect the two flanges tightly. Gaskets are used to seal between flanges. Flanges are divided into threaded connection (threaded connection) flanges, welding flanges and clamping flanges. Flanges are used in pairs. Threaded flanges can be used for low-pressure pipelines, and welding flanges can be used for pressures above four kilograms. A sealing gasket is added between the two flanges and then fastened with bolts.

[0003] In the prior art, when the flanges of steam and high-temperature and high-pressure gas pipelines of chemical plants leak, if they cannot be isolated, the common way to repair the leak is to tighten the bolts of the pipeline flanges or make and install pressure plugging fixtures. When the tightening treatment reaches the maximum limit and the leak point cannot be handled, the pressure plugging fixtures are continued to be installed and glued to achieve the purpose of emergency treatment of the leak point. Because the leakage locations of different leak points vary greatly, special leak repair fixtures need to be made according to the location of the leak point. The calculation, measurement, fixture production and installation cycle is long, which can easily expand the leak point and cause fire and explosion accidents. Utility Model Content

[0004] The utility model provides a leak-blocking device for a pipeline flange to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leak-proof device for a pipeline flange, comprising a tightening belt, which is tied to the outer surface of the flange, a rectangular box is fixedly installed on the rear side of the left end of the tightening belt, and the left and right sides of the rectangular box are both open structures, the right end of the tightening belt is movably inserted in the rectangular box, a clamping mechanism is fixedly installed in the rectangular box, and the clamping mechanism clamps and fixes the right end of the tightening belt, a sealing mechanism is arranged between the right side surface of the left end of the tightening belt and the inner wall of the tightening belt, a one-way liquid inlet valve is fixedly installed on the front side wall of the tightening belt, a rectangular block is fixedly installed on the outer surface of the one-way liquid inlet valve, and the rectangular block is fixedly connected to the front side of the tightening belt, and the upper and lower sides of the rectangular block are both provided with clamping mechanisms.

[0006] Furthermore, the clamping mechanism includes a threaded sleeve, a bolt rod, a bearing and a curved pressure plate. The threaded sleeve is fixedly mounted on the rear wall of the rectangular box. The bolt rod is installed on the inner thread of the threaded sleeve. The front end of the bolt rod is installed with a curved pressure plate through a bearing, and the curved pressure plate clamps and fixes the right end of the tightening belt.

[0007] Furthermore, the sealing mechanism includes a rectangular groove and an insert block. The inner wall of the fastening belt is provided with a rectangular groove. The insert block is fixedly installed on the right side of the fastening belt corresponding to the rectangular groove, and the insert block is movably inserted in the rectangular groove.

[0008] Furthermore, the fastening belt and the insert block are both made of stainless steel.

[0009] Furthermore, the clamping mechanism includes a clamping plate, a threaded hole and a locking screw. The upper and lower sides of the rectangular block are provided with clamping plates, and the upper and lower clamping plates clamp and fix the flange. Two threaded holes are provided on the upper and lower sides of the clamping plate and the rectangular block, and locking screws are installed in the threads of the upper and lower corresponding threaded holes.

[0010] Furthermore, the side surfaces of the clamping plate facing the rectangular block are fixedly mounted with anti-skid rubber pads.

[0011] Compared with the prior art, the utility model provides a leak plugging device for pipeline flange, which has the following beneficial effects:

[0012] The leak-proof device for pipeline flange is simple and quick to manufacture by arranging a tightening belt, a clamping mechanism, a one-way liquid inlet valve and a clamping mechanism. The device is suitable for various flange sizes and has strong versatility. It does not need to be customized for leaking flanges, which reduces the cost of leak-proof fixtures. The installation process is simple, saving operation time and involving no special hot work. The leak point can be quickly disposed of, reducing the risk of leakage and fire during the operation process, thereby ensuring the safe and stable operation of the production equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a front cross-sectional view of the utility model;

[0015] Figure 3 It is a bottom sectional view of the utility model;

[0016] Figure 4 It is a rectangular block cross-sectional view of the utility model.

[0017] In the figure: 1. tightening belt; 2. rectangular box; 3. clamping mechanism; 301. threaded sleeve; 302. bolt rod; 303. bearing; 304. arc pressure plate; 4. sealing mechanism; 401. rectangular groove; 402. plug-in block; 5. one-way liquid inlet valve; 6. rectangular block; 7. clamping mechanism; 701. clamping plate; 702. threaded hole; 703. locking screw; 8. anti-slip rubber pad. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 The utility model discloses a leak-proof device for pipeline flange, comprising a fastening belt 1, wherein the fastening belt 1 is bound to the outer surface of the flange, a rectangular box 2 is fixedly installed on the rear side of the left end of the fastening belt 1, and the left and right sides of the rectangular box 2 are both open structures, the right end of the fastening belt 1 is movably inserted into the rectangular box 2, a clamping mechanism 3 is fixedly installed in the rectangular box 2, and the clamping mechanism 3 clamps and fixes the right end of the fastening belt 1, a sealing mechanism 4 is arranged between the right side of the left end of the fastening belt 1 and the inner wall of the fastening belt 1, a one-way liquid inlet valve 5 is fixedly installed on the front side wall of the fastening belt 1, a rectangular block 6 is fixedly installed on the outer surface of the one-way liquid inlet valve 5, and the rectangular block 6 is fixedly connected to the front side of the fastening belt 1, and the upper and lower sides of the rectangular block 6 are both provided with clamping mechanisms 7.

[0020] Specifically, the clamping mechanism 3 includes a threaded sleeve 301, a bolt rod 302, a bearing 303 and a curved pressure plate 304. The threaded sleeve 301 is fixedly installed on the rear wall of the rectangular box 2. The bolt rod 302 is installed on the internal thread of the threaded sleeve 301. The front end of the bolt rod 302 is installed with a curved pressure plate 304 through a bearing 303, and the curved pressure plate 304 clamps and fixes the right end of the fastening belt 1.

[0021] In this embodiment, the bolt rod 302 moves in the threaded sleeve 301 toward the tightening belt 1, so that the bolt rod 302 drives the arc pressure plate 304 to move through the bearing 303, so that the arc pressure plate 304 presses and fixes the left and right ends of the tightening belt 1.

[0022] Specifically, the sealing mechanism 4 includes a rectangular groove 401 and an insert block 402 . The inner wall of the fastening belt 1 is provided with a rectangular groove 401 . The insert block 402 is fixedly installed on the right side of the fastening belt 1 corresponding to the rectangular groove 401 , and the insert block 402 is movably inserted in the rectangular groove 401 .

[0023] In this embodiment, the insert block 402 is inserted into the rectangular groove 401, so that the left end of the fastening belt 1 and the right end of the fastening belt 1 are sealed close to the rectangular box 2, so that the sealing effect of the fastening belt 1 is better and it is not easy to leak glue.

[0024] Specifically, the fastening belt 1 and the insert block 402 are both made of stainless steel.

[0025] In this embodiment, the fastening belt 1 and the insert block 402 are strong and durable and not easily damaged.

[0026] Specifically, the clamping mechanism 7 includes a clamping plate 701, a threaded hole 702 and a locking screw 703. The upper and lower sides of the rectangular block 6 are provided with clamping plates 701, and the upper and lower clamping plates 701 clamp and fix the flange. Two threaded holes 702 are provided on the upper and lower sides of the clamping plate 701 and the rectangular block 6, and the locking screws 703 are installed in the inner threads of the upper and lower corresponding threaded holes 702.

[0027] In this embodiment, two locking screws 703 are installed in the threaded holes 702 on the clamping plate 701 and the rectangular block 6, so that the upper and lower locking screws 703 drive the upper and lower clamping plates 701 to clamp on the upper and lower sides of the flange, thereby achieving the effect of fixing the fastening belt 1 and making the fastening belt 1 stably installed.

[0028] Specifically, the side surfaces of the clamping plate 701 facing the rectangular block 6 are fixedly mounted with anti-skid rubber pads 8 .

[0029] In this embodiment, the anti-skid rubber pad 8 increases the friction between the clamping plate 701 and the flange, making the clamping plate 701 more stably and firmly fixed.

[0030] When in use, when a dew point appears on the pipeline flange joint, the tightening belt 1 is wound around the outer surface of the flange, and the right end of the tightening belt 1 is inserted into the rectangular box 2. The right end of the tightening belt 1 is pulled, and the bolt rod 302 in the clamping mechanism 3 moves in the threaded sleeve 301 toward the tightening belt 1, so that the bolt rod 302 drives the arc pressure plate 304 to move through the bearing 303, so that the arc pressure plate 304 presses and fixes the left and right ends of the tightening belt 1, thereby achieving the effect of fixing the tightening belt 1 on the flange. At the same time, the insert block 402 in the sealing mechanism 4 is inserted into the rectangular groove 401, so that the left end of the tightening belt 1 and the right end of the tightening belt 1 are sealed close to the rectangular box 2, so that the sealing effect of the tightening belt 1 is better and it is not easy to leak glue. The two locking screws 703 in 7 are installed in the threaded holes 702 on the clamping plate 701 and the rectangular block 6, so that the upper and lower locking screws 703 drive the upper and lower clamping plates 701 to be clamped on the upper and lower sides of the flange, thereby achieving the effect of fixing the fastening belt 1 and making the fastening belt 1 stable. Then, glue is injected into the rectangular groove 401 of the fastening belt 1 and the flange through the one-way liquid inlet valve 5 to form a seal to plug the leak, so that the plugging device is simple and fast to manufacture, suitable for various flange sizes, and has strong versatility. It does not need to be customized for leaking flanges, reduces the cost of plugging fixtures, and has a simple installation process, saves operation time, does not involve special operations such as hot work, and the leak point can be quickly handled, so that the risk of leakage and fire during the operation process is reduced, ensuring the safe and stable operation of the production equipment.

[0031] In summary, the leak-proof device for pipeline flange is simple and quick to manufacture, suitable for all types of flange sizes, has strong versatility, does not need to be customized for leaking flanges, reduces the cost of leak-proof fixtures, has a simple installation process, saves operation time, does not involve special operations involving hot work, and the leak point can be quickly disposed of, reducing the risk of leakage and fire during the operation process, ensuring the safe and stable operation of the production equipment.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof device for a pipeline flange, comprising a tightening belt (1), characterized in that: The fastening belt (1) is bound to the outer surface of the flange, a rectangular box (2) is fixedly installed on the rear side of the left end of the fastening belt (1), and the left and right sides of the rectangular box (2) are both open structures, the right end of the fastening belt (1) is movably inserted into the rectangular box (2), a clamping mechanism (3) is fixedly installed in the rectangular box (2), and the clamping mechanism (3) clamps and fixes the right end of the fastening belt (1), a sealing mechanism (4) is arranged between the right side of the left end of the fastening belt (1) and the inner wall of the fastening belt (1), a one-way liquid inlet valve (5) is fixedly installed on the front side wall of the fastening belt (1), a rectangular block (6) is fixedly installed on the outer surface of the one-way liquid inlet valve (5), and the rectangular block (6) is fixedly connected to the front side of the fastening belt (1), and the upper and lower sides of the rectangular block (6) are both provided with clamping mechanisms (7).

2. A leak-proof device for pipeline flange according to claim 1, characterized in that: The clamping mechanism (3) comprises a threaded sleeve (301), a bolt rod (302), a bearing (303) and an arc-shaped pressing plate (304); the threaded sleeve (301) is fixedly mounted on the rear side wall of the rectangular box (2); the bolt rod (302) is mounted on the inner thread of the threaded sleeve (301); the front end of the bolt rod (302) is mounted with an arc-shaped pressing plate (304) via a bearing (303); and the arc-shaped pressing plate (304) clamps and fixes the right end of the fastening belt (1).

3. A leak-proof device for pipeline flange according to claim 1, characterized in that: The sealing mechanism (4) comprises a rectangular groove (401) and an insert block (402); the rectangular groove (401) is provided on the inner wall of the fastening belt (1); the insert block (402) is fixedly mounted on the right side of the fastening belt (1) corresponding to the rectangular groove (401); and the insert block (402) is movably inserted into the rectangular groove (401).

4. A leak-proof device for pipeline flange according to claim 1, characterized in that: The fastening belt (1) and the insert block (402) are both made of stainless steel.

5. The leak-proof device for pipeline flange according to claim 1, characterized in that: The clamping mechanism (7) comprises a clamping plate (701), a threaded hole (702) and a locking screw (703); the upper and lower sides of the rectangular block (6) are both provided with a clamping plate (701), and the upper and lower clamping plates (701) clamp and fix the flange; the clamping plate (701) and the upper and lower sides of the rectangular block (6) are both provided with two threaded holes (702), and the locking screws (703) are installed in the inner threads of the upper and lower corresponding threaded holes (702).

6. A leak-proof device for pipeline flange according to claim 5, characterized in that: The side surfaces of the clamping plates (701) facing the rectangular blocks (6) are fixedly mounted with anti-skid rubber pads (8).

Images