Pressurized leakage stopping equipment for flange leakage of hydrogenation tower

Abstract

The utility model provides hydrogenation tower flange leakage under-pressure leaking stoppage equipment which comprises a leaking stoppage clamp, the leaking stoppage clamp comprises a steel plate, an upper welding sealing cover plate, a lower welding sealing cover plate, two sealing portions, a sealing cavity and a plurality of glue injection connectors, and the two ends, in the length direction, of the steel plate are bent downwards to be in an arc shape. The upper and lower sides of the steel plate are respectively provided with an upper welding sealing cover plate and a lower welding sealing cover plate. The leaking stoppage clamp is tightly connected with the flange, the sealing cavity is formed between the two sealing portions of the leaking stoppage clamp, the sealing cavity is located at the leakage position of the flange, the sealing cavity is filled with the sealant, the sealing sealant blocks the leakage position of the flange, and therefore the effects that the leakage position of the flange is maintained at low cost, and operation is easy are achieved. The device solves the problem of leakage of important equipment hydrogenation tower flanges of an electronic-grade hydrogen peroxide device, prolongs the service life of the hydrogenation tower, improves the operation quality of the hydrogenation tower, and ensures long-period stable operation of the device.

Description

Technical Field

[0001] The utility model relates to a leak plugging device, in particular to a leak plugging device under pressure for a hydrogenation tower flange, belonging to the technical field of flange leak sealing and leak plugging. Background Art

[0002] In the electronic-grade hydrogen peroxide device, the hydrogenation tower is regarded as a key equipment, and its stable operation directly affects the long-term operation capacity of the entire device. However, in the actual operation of the hydrogenation tower, the leakage problem of the flange at the top of the tower is common. This problem usually originates from the damage of the flange gasket, which leads to local leakage of the flange sealing surface. To solve this problem, it is usually necessary to replace the gasket as a whole. However, this replacement not only requires the shutdown of the device, but also requires the pressure relief inside the tower. In addition, since the top head of the hydrogenation tower is far from the ground, a crane must be used for operation, which increases maintenance costs and time consumption.

[0003] Specifically, the shutdown of the device causes production suspension, which directly affects production efficiency and product supply. At the same time, the use of cranes for maintenance operations requires high safety standards and additional operating costs, which increases the difficulty of maintenance and the complexity of operations. Utility Model Content

[0004] Based on the above background, the purpose of the utility model is to provide a hydrogenation tower flange leakage plugging device with pressure that reduces maintenance costs and is easy to operate, so as to solve the problems described in the background technology.

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

[0006] A leak plugging device for a hydrogenation tower flange under pressure, comprising a leak plugging fixture, the leak plugging fixture comprising a steel plate, an upper welded sealing cover plate, a lower welded sealing cover plate, two sealing parts, a sealing cavity and a plurality of glue injection joints, the two ends of the steel plate along the length direction are bent downward into an arc shape, an upper welded sealing cover plate and a lower welded sealing cover plate are respectively arranged on the upper and lower sides of the steel plate, the upper welded sealing cover plate and the lower welded sealing cover plate are both connected to the steel plate, both ends of the lower welded sealing cover plate are bent downward to have a sealing part, the sealing part and the lower welded sealing cover plate are an integral structure, a sealing cavity is formed between the two sealing parts, a plurality of glue injection joints are arranged on the upper part of the sealing cavity, the plurality of glue injection joints are linearly arranged at equal distances along the length direction of the sealing cavity, the glue injection joints are connected to the sealing cavity, and the glue injection joints are all connected to the steel plate, the upper welded sealing cover plate and the lower welded sealing cover plate;

[0007] The hydrogenation tower flange leakage plugging device also includes a plurality of connectors. A plurality of connecting holes are provided at both ends of the width of the steel plate, and the connectors are externally connected to the flanges through the connecting holes.

[0008] When leakage occurs at a local position of the flange connected to the oxidation tower, first measure the leakage position of the flange, and then make corresponding plugging equipment according to the flange and the leakage position of the flange.

[0009] Cover the leaking part of the flange with the steel plate of the leak-proof equipment so that the two sealing parts are located at both ends of the flange leakage area, and fit the lower welded sealing cover plate and the two sealing parts tightly with the flange. At this time, the flange leakage area is located at the lower part of the sealing cavity. Connect the connecting piece to the flange through the connecting hole, and then inject the sealant into the sealing cavity through the injection joint, so that the sealant is in full contact with the flange to seal the flange leakage part.

[0010] Preferably, the curvature of the steel plate matches the curvature of the external flange.

[0011] The curvature of the steel plate matches the curvature of the external flange, thereby ensuring that the leak-proofing device can completely fit on the flange to be plugged.

[0012] Preferably, the number of the connecting holes is at least two.

[0013] Preferably, the distance between adjacent connecting holes along the length direction of the steel plate is equal to the distance between adjacent screw holes in the circumferential direction of the external flange.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model discloses a hydrogenation tower flange leakage plugging device under pressure, which is tightly connected to the flange by a plugging fixture, so that a sealing cavity is formed between two sealing parts of the plugging fixture, and the sealing cavity is located at the flange leakage position, and the sealing cavity is filled with sealant, and the flange leakage position is blocked by the sealant, thereby achieving the effect of low-cost repair of the flange leakage position and easy operation. The device solves the problem of flange leakage of the hydrogenation tower, an important equipment of the electronic-grade hydrogen peroxide device, increases the service life of the hydrogenation tower, improves the operation quality of the hydrogenation tower, and ensures the long-term stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 It is a top view of the utility model of the hydrogenation tower flange leakage plugging device under pressure;

[0018] Figure 2 It is a side view of a pressure plugging device for hydrogenation tower flange leakage according to the utility model.

[0019] In the figure: 1. Leak-proof fixture; 101. Steel plate; 102. Upper welded sealing cover plate; 103. Lower welded sealing cover plate; 104. Sealing part; 105. Sealing cavity; 106. Glue injection joint; 2. Connecting piece; 3. Connecting hole. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0021] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0022] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0023] like Figure 1 and Figure 2 As shown, a leak plugging device for a hydrogenation tower flange under pressure includes a leak plugging fixture 1, which includes a steel plate 101, an upper welded sealing cover plate 102, a lower welded sealing cover plate 103, two sealing parts 104, a sealing cavity 105 and a plurality of glue injection joints 106. The two ends of the steel plate 101 along the length direction are bent downward into an arc shape. The upper and lower sides of the steel plate 101 are respectively provided with an upper welded sealing cover plate 102 and a lower welded sealing cover plate 103. The upper welded sealing cover plate 102 and the lower welded sealing cover plate 103 are both connected to the steel plate 101. Both ends of the lower welded sealing cover plate 103 are bent downward to have sealing parts 104, the sealing parts 104 and the lower welded sealing cover plate 103 are an integrated structure, and a sealing cavity 105 is between the two sealing parts 104. A plurality of glue injection joints 106 are arranged on the upper part of the sealing cavity 105, and the plurality of glue injection joints 106 are arranged linearly and equidistantly along the length direction of the sealing cavity 105. The glue injection joints 106 are connected to the sealing cavity 105, and the glue injection joints 106 are connected to the steel plate 101, the upper welded sealing cover plate 102 and the lower welded sealing cover plate 103.

[0024] The hydrogenation tower flange leakage plugging device also includes a plurality of connectors 2. A plurality of connection holes 3 are provided at both ends of the steel plate 101 along the width. The number of the connection holes 3 is at least two. The connector 2 is externally connected to the flange through the connection holes 3. The distance between adjacent connection holes 3 along the length direction of the steel plate 101 is equal to the distance between adjacent screw holes in the circumferential direction of the externally connected flange.

[0025] When leakage occurs at a local position of the flange connected to the oxidation tower, the leakage position of the flange is first measured, and a corresponding plugging device is made according to the flange and the leakage position of the flange, wherein the curvature of the steel plate 101 matches the curvature of the external flange. The curvature of the steel plate 101 matches the curvature of the external flange, thereby ensuring that the plugging device can be completely fitted on the flange to be plugged.

[0026] The steel plate 101 of the leak-proof equipment is covered on the leaking part of the flange, so that the two sealing parts 104 are located at both ends of the flange leakage area, and the lower welded sealing cover plate 103 and the two sealing parts 104 are tightly fitted to the flange. At this time, the flange leakage area is located at the lower part of the sealing cavity 105, and the connector 2 is connected to the flange through the connecting hole 3, and then the sealant is injected into the sealing cavity 105 through the glue injection joint 106, so that the sealant is in full contact with the flange to seal the flange leakage part.

[0027] The operating steps of the utility model of a hydrogenation tower flange leakage plugging device under pressure are as follows:

[0028] When leakage occurs at a local position of the flange connected to the oxidation tower, first measure the leakage position of the flange, and then make corresponding plugging equipment according to the flange and the leakage position of the flange.

[0029] The steel plate 101 of the leak-proof equipment is covered on the leaking part of the flange, so that the two sealing parts 104 are located at both ends of the flange leakage area, and the lower welded sealing cover plate 103 and the two sealing parts 104 are tightly fitted to the flange. At this time, the flange leakage area is located at the lower part of the sealing cavity 105, and the connector 2 is connected to the flange through the connecting hole 3, and then the sealant is injected into the sealing cavity 105 through the glue injection joint 106, so that the sealant is in full contact with the flange to seal the flange leakage part.

[0030] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A hydrogenation tower flange leakage plugging device under pressure, characterized in that: The hydrogenation tower flange leakage plugging device comprises a plugging fixture (1), wherein the plugging fixture (1) comprises a steel plate (101), an upper welded sealing cover plate (102), a lower welded sealing cover plate (103), two sealing parts (104), a sealing cavity (105) and a plurality of glue injection joints (106); both ends of the steel plate (101) along the length direction are bent downward into an arc shape; an upper welded sealing cover plate (102) and a lower welded sealing cover plate (103) are respectively arranged on the upper and lower sides of the steel plate (101); the upper welded sealing cover plate (102) and the lower welded sealing cover plate (103) are both connected to the steel plate (101); and the lower welded sealing cover plate (103) is connected to the steel plate (101). Both ends of the sealing cover plate (103) are bent downward to form sealing portions (104), the sealing portions (104) and the lower welded sealing cover plate (103) are an integral structure, a sealing cavity (105) is formed between the two sealing portions (104), a plurality of glue injection joints (106) are arranged at an equal distance linearly along the length direction of the sealing cavity (105), the glue injection joints (106) are communicated with the sealing cavity (105), and the glue injection joints (106) are connected to the steel plate (101), the upper welded sealing cover plate (102) and the lower welded sealing cover plate (103); The hydrogenation tower flange leakage plugging device also includes a plurality of connectors (2). The steel plate (101) is provided with a plurality of connection holes (3) at both ends along the width thereof. The connectors (2) are externally connected to flanges through the connection holes (3).

2. The hydrogenation tower flange leakage plugging equipment according to claim 1, characterized in that: The curvature of the steel plate (101) matches the curvature of the external flange.

3. The hydrogenation tower flange leakage plugging equipment according to claim 1, characterized in that: The number of the connecting holes (3) is at least two.

4. The hydrogenation tower flange leakage plugging equipment according to claim 1, characterized in that: The distance between adjacent connection holes (3) along the length direction of the steel plate (101) is equal to the distance between adjacent screw holes in the circumferential direction of the external flange.

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