Rapid plugging device for NMP rectification production container

Abstract

The utility model relates to the technical field of pressure bottom leakage stoppage of fixed pressure containers, and discloses a quick leakage stoppage device for an NMP (N-Methyl Pyrrolidone) rectification production container, which comprises a base, a fixing nut is fixedly connected onto the base, and a lower screw rod is in threaded connection onto the fixing nut. According to the rapid leaking stoppage device for the NMP rectification production container, the fixing nut, the two-way threaded sleeve, the connecting sleeve nut, the lower lead screw and the upper lead screw are in threaded connection, so that the effect of rapidly assembling the special-shaped carriage and the sealing gasket is achieved, and meanwhile, the rapid leaking stoppage device is simple in structure and convenient to use. According to the utility model, rapid positioning, mounting and leaking stoppage can be carried out on the production container perforation of plane and cambered leakage points in the rectification production process, so that the repair time is shortened, safety production accidents caused by fire or leakage are avoided, the production cost is reduced, the environmental pollution is reduced, and the economic benefits of enterprises are improved; and the length of the whole leaking stoppage device can be adjusted, so that the effect of improving the applicability of the leaking stoppage device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plugging at the bottom of fixed pressure vessels under pressure, in particular to a rapid plugging device for NMP rectification production vessels. Background Art

[0002] In real life, pipelines or vessels with pressure are prone to leakage due to corrosion perforation or human damage during internal or medium transportation. Therefore, plugging operations are generally carried out through plugging devices.

[0003] At present, the existing plugging devices are complex to assemble, which increases the time required for assembling the plugging devices, and further increases the emergency repair time. For the rapid positioning and installation of plugs for perforated production vessels with flat and arc-shaped leakage points during the rectification production process, more losses will be incurred. Therefore, a rapid plugging device for NMP rectification production vessels is proposed. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a rapid plugging device for NMP rectification production vessels, which has the advantages of rapid assembly and plugging, and solves the problem that the rapid plugging device is not convenient for rapid assembly.

[0006] (2) Technical Solutions

[0007] To achieve the above purposes of rapid assembly and plugging, the utility model provides the following technical solutions:

[0008] A rapid plugging device for NMP rectification production vessels includes a base, a fixed nut fixedly connected to the base, a lower lead screw threadedly connected to the fixed nut, a bidirectional screw sleeve threadedly connected to the top of the lower lead screw, an upper lead screw threadedly connected to the top of the bidirectional screw sleeve, a connecting sleeve nut threadedly connected to the top of the upper lead screw, a fixed rod fixedly installed on the top of the connecting sleeve nut, and a plugging assembly fixedly installed on the top of the fixed rod.

[0009] As a preferred technical solution of the utility model, the plugging assembly includes a special-shaped drag plate fixedly installed on the top of the fixed rod and a sealing gasket installed on the special-shaped drag plate.

[0010] As a preferred technical solution of the utility model, thread grooves are provided on the fixed nut, the bidirectional screw sleeve, and the connecting sleeve nut.

[0011] As a preferred technical solution of the utility model, rubber sleeves are sleeved on the outside of the fixed nut, the bidirectional screw sleeve, the connecting sleeve nut, the lower lead screw, and the upper lead screw.

[0012] As a preferred technical solution of the present utility model, bump points are provided on the outer wall of the rubber sleeve.

[0013] As a preferred technical solution of the present utility model, mounting holes are provided on the base.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a rapid leak plugging device for an NMP rectification production container, which has the following beneficial effects:

[0016] The rapid leak plugging device for the NMP rectification production container enables the special-shaped drag plate and the sealing gasket to be quickly assembled through the threaded connection among the fixing nut, the bidirectional screw sleeve, the connecting sleeve nut, the lower lead screw, and the upper lead screw. At the same time, the structure is simple, and it can quickly position and install and plug the perforations of the production container with leakage points on the plane and the arc surface during the rectification production process, reducing the emergency repair time, avoiding safety production accidents caused by fire or leakage, reducing the production cost, reducing environmental pollution, and improving the economic benefits of the enterprise. In addition, through the threaded connection method, the length of the entire leak plugging device can be adjusted, so as to achieve the effect of increasing the applicability of the leak plugging device. Description of the drawings

[0017] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0018] Figure 2 It is a front view sectional schematic diagram of the structure of the present utility model;

[0019] Figure 3 It is the structure of the present utility model Figure 2 A partial enlarged schematic diagram of part A shown in the figure.

[0020] In the figure: 1, base; 2, fixing nut; 3, lower lead screw; 4, bidirectional screw sleeve; 5, upper lead screw; 6, rubber sleeve; 7, fixing rod; 8, special-shaped drag plate; 9, sealing gasket; 10, mounting hole; 11, thread groove; 12, connecting sleeve nut; 13, bump point. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Please refer to Figures 1-3 , a rapid leak plugging device for an NMP rectification production container, which includes a base 1. A fixing nut 2 is fixedly connected to the base 1. A lower lead screw 3 is threadedly connected to the fixing nut 2. The top of the lower lead screw 3 is threadedly connected to a bidirectional screw sleeve 4. The top of the bidirectional screw sleeve 4 is threadedly connected to an upper lead screw 5. The top of the upper lead screw 5 is threadedly connected to a connecting sleeve nut 12. A fixing rod 7 is fixedly installed at the top of the connecting sleeve nut 12. A leak plugging assembly is fixedly installed at the top of the fixing rod 7. Among them, the leak plugging assembly includes a special-shaped drag plate 8 fixedly installed at the top of the fixing rod 7, and a sealing gasket 9 installed on the special-shaped drag plate 8. Among them, the sealing gasket is made of materials such as rubber, tetrafluoroethylene, and plastic, so that the sealing gasket 9 has certain solvent corrosion resistance, thereby increasing the service life of the leak plugging device and achieving the effect of cost savings. Among them, the special-shaped support plate 8 is determined according to the shape within a certain range of the leakage point and can also be a flat plate.

[0025] In this embodiment, threaded grooves 11 are provided on the fixing nut 2, the bidirectional screw sleeve 4, and the connecting sleeve nut 12, so that the fixing nut 2, the bidirectional screw sleeve 4, the connecting sleeve nut 12, the lower lead screw 3, and the upper lead screw 5 can be assembled in a matching manner through threaded connection. Among them, the length of the fixing rod is determined according to the actual situation on site. Among them, the fixing rod 7 is welded inside the connecting sleeve nut 12, and the insertion position is between 1 / 3 and 1 / 2 of the nut; the connection method between the fixing nut 2 and the base 1 is fixed by welding. The components between the fixing rod 7 and the fixing nut 2 form a combination, and multiple groups can be set according to the specific size of the special-shaped support plate 8 and the position distribution of the leakage points. Generally, 2-5 groups can be set; the materials between the base 1 and the special-shaped support plate 8 can be determined according to the actual working conditions on site. It can be stainless steel or carbon steel. The carbon steel should be anti-corrosive as required. The position of the base 1 can be fixed on the ground. If it is fixed in other directions, the base 1 and the connecting material can be pre-assembled and welded in advance, and finally fixed on other equipment, pipelines or building materials on site without using fire, so that the quick leakage plugging device has a suitable fixing force point to ensure the leakage plugging effect. Thus, the length of the leakage plugging device can be adjusted during the assembly process, and the applicability of the leakage plugging device is better. Among them, an installation hole 10 is provided on the base 1. Through the installation hole 10 reserved on the base 1, the leakage plugging device is convenient to install and fix.

[0026] In this embodiment, rubber sleeves 6 are sleeved outside the fixing nut 2, the bidirectional screw sleeve 4, the connecting sleeve nut 12, the lower lead screw 3, and the upper lead screw 5. Among them, convex points 13 are provided on the outer wall of the rubber sleeve 6. By installing the rubber sleeve 6 and the convex points 13, the friction force can be increased when the components are assembled by rotation, and the anti-slip effect can be achieved.

[0027] Working principle: When the leakage plugging device needs to be used, the lower lead screw 3 is installed on the fixing nut 2 by rotation, and then the bidirectional screw sleeve 4, the upper lead screw 5, and the connecting sleeve nut 12 are assembled by rotation in turn, and the effect of quick assembly can be achieved. When the length of the leakage plugging device is not enough, a combination of the lower lead screw 3, the bidirectional screw sleeve 4, and the upper lead screw 5 can be added between the fixing nut 2 and the connecting sleeve nut 12 to achieve the effect of adjusting the length of the leakage plugging device.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick leak plugging device for an NMP distillation production container, comprising a base (1), characterized in that: The base (1) is fixedly connected with a fixing nut (2), a lower screw rod (3) is threadedly connected to the fixing nut (2), the top of the lower screw rod (3) is threadedly connected with a bidirectional screw sleeve (4), the top of the bidirectional screw sleeve (4) is threadedly connected with an upper screw rod (5), the top of the upper screw rod (5) is threadedly connected with a connecting sleeve nut (12), a fixing rod (7) is fixedly installed on the top of the connecting sleeve nut (12), and a leak plugging component is fixedly installed on the top of the fixing rod (7).

2. A quick leak-stopping device for NMP distillation production container according to claim 1, characterized in that: The leak-proofing assembly comprises a special-shaped drag plate (8) fixedly mounted on the top of a fixing rod (7), and a sealing gasket (9) mounted on the special-shaped drag plate (8).

3. A quick leak-stopping device for NMP distillation production container according to claim 1, characterized in that: The fixing nut (2), the bidirectional threaded sleeve (4), and the connecting sleeve nut (12) are all provided with threaded grooves (11).

4. A quick leak-stopping device for NMP distillation production container according to claim 1, characterized in that: The fixing nut (2), the bidirectional screw sleeve (4), the connecting sleeve nut (12), the lower screw rod (3), and the upper screw rod (5) are all covered with a rubber sleeve (6) on their exteriors.

5. A quick leak-stopping device for NMP distillation production container according to claim 4, characterized in that: The outer wall of the rubber sleeve (6) is provided with convex points (13).

6. A quick leak-stopping device for NMP distillation production container according to claim 1, characterized in that: The base (1) is provided with a mounting hole (10).

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