Detachable pipe orifice sealing head device of pressure vessel

Abstract

The utility model relates to the technical field of pipe orifice sealing, and particularly discloses a detachable pipe orifice sealing head device of a pressure vessel, which comprises a sealing cap mounted on the outer side of a pipe to be sealed, the sealing cap comprises a connecting seat, a sealing plate is arranged at one end of the connecting seat, an elastic clamping plate is arranged in the connecting seat, the upper end of the clamping plate is connected with the connecting seat, and the lower end of the clamping plate is connected with the connecting seat. A deformation medium is arranged between the clamping plate and the connecting seat, the lower end of the connecting seat is connected with a gland, and the gland compresses the clamping plate on the outer side wall of the to-be-sealed pipe by extruding the deformation medium; the pipe orifice sealing device not only can seal the pipe orifice of the pipe to be sealed, but also is simple and quick to disassemble and assemble, solves the problems that an existing sealing method is tedious in operation and wastes time, reduces the sealing difficulty of the pipe orifice, and improves the pressing efficiency; and the tool can be repeatedly used, so that the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe orifice sealing, in particular to a detachable pipe orifice sealing device for a pressure vessel. Background Art

[0002] A pressure vessel is a sealed container that can withstand pressure. It has a wide range of uses and plays an important role in many sectors such as industry and civil use, as well as in many fields of scientific research.

[0003] With the continuous development of the equipment manufacturing industry in recent years, the processing and manufacturing technology of pressure vessels have been greatly improved. However, some pressure vessels have open pipe openings without flanges, which brings certain difficulties to pressure testing after manufacturing. The current pressure testing method is to weld a sealing plate to the pipe opening to seal it or to wrap a plastic bag around the pipe opening to seal it. The existing sealing method is cumbersome and time-consuming, which affects the pressure testing efficiency. Utility Model Content

[0004] The utility model is aimed at the above-mentioned deficiencies in the prior art and provides a detachable pipe orifice sealing device for a pressure vessel, which can not only seal the pipe orifice of the pipe to be sealed, but also is simple and quick to assemble and disassemble, thereby solving the problems of the existing sealing method being cumbersome and time-consuming, reducing the difficulty of pipe orifice sealing and improving the pressure-pressing efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A detachable pipe mouth sealing device for a pressure vessel includes a sealing cap installed on the outside of a pipe to be sealed, the sealing cap includes a connecting seat, one end of the connecting seat is provided with a sealing plate, an elastic clamping plate is provided in the connecting seat, the upper end of the clamping plate is connected to the connecting seat, a deformation medium is provided between the clamping plate and the connecting seat, the lower end of the connecting seat is connected to a pressure cover, and the pressure cover presses the clamping plate against the outer wall of the pipe to be sealed by squeezing the deformation medium.

[0007] Preferably, the deformation medium is liquid.

[0008] Preferably, the outer side of the deformation medium is covered with a sealing film.

[0009] Preferably, an ear plate is provided at the lower end of the connecting seat, the pressure cover and the pressure plate are connected by tightening bolts, and a top ring for squeezing the deformation medium is provided at the upper end of the pressure cover.

[0010] Preferably, a sealing ring is provided between the top ring and the deformable medium, and two sides of the sealing ring are tightly fitted with the connecting seat and the clamping plate respectively.

[0011] Preferably, a second sealing ring is provided between the connecting seat and the tube to be sealed.

[0012] Preferably, the connecting seat and the sealing plate are connected by bolts, and a first sealing ring is provided between the connecting seat and the sealing plate.

[0013] Preferably, the sealing plate and the connecting seat are an integrated structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model can not only seal the pipe mouth to be sealed, but also is simple and quick to disassemble and assemble, solving the problem of complicated operation and time waste of the existing sealing method, reducing the difficulty of sealing the pipe mouth and improving the pressing efficiency; moreover, the tooling can be reused, saving costs.

[0016] 2. The utility model adopts an extrusion method to clamp the pipe mouth, which can avoid damage to the pipe mouth and is safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of embodiment 1;

[0018] Figure 2 is a cross-sectional view of embodiment 2;

[0019] In the figure: 1-tube to be sealed; 2-first sealing ring; 3-sealing cap; 301-connecting seat; 302-clamping plate; 303-ear plate; 304-sealing plate; 4-deformable medium; 5-sealing ring; 6-pressure cover; 601-top ring; 7-tightening bolt; 8-second sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 、 Figure 2 As shown, a detachable pipe mouth sealing device for a pressure vessel includes a sealing cap 3 installed on the outside of the pipe 1 to be sealed, the sealing cap 3 includes a connecting seat 301 installed on the outside of the pipe 1 to be sealed, a sealing plate 304 is provided at one end of the connecting seat 301, an elastic splint 302 is provided in the connecting seat 301, the upper end of the splint 302 is connected to the connecting seat 301, a cavity is formed between the splint 302 and the connecting seat 301, a deformation medium 4 is provided in the cavity, and the lower end of the connecting seat 301 is connected to the pressure cover 6.

[0022] In the present application, the deformable medium 4 can be a liquid medium such as water, oil, or other deformable medium such as soft colloid.

[0023] An ear plate 303 is provided at the lower end of the connecting seat 301. The ear plate 303 can be annular or a plurality of block structures. The pressure cover 6 and the pressure plate are connected by a tightening bolt 7. The upper end of the pressure cover 6 is provided with a top ring 601 for squeezing the deformation medium 4. Rotating the tightening bolt 7 can push the top ring 601 toward the deformation medium 4 to squeeze the deformation medium 4. The deformation medium 4 is deformed under force and squeezes the clamping plate 302, thereby clamping it on the tube 1 to be sealed.

[0024] In order to prevent the deformation medium 4 from flowing out, a closed sealing film may be placed on the outside of the deformation medium 4 .

[0025] Alternatively, a sealing ring 5 is provided between the top ring 601 and the deformable medium 4. The sealing ring 5 is made of rubber and has great elasticity. It is interference fit between the connecting seat 301 and the clamping plate 302. The two sides of the sealing ring 5 are tightly fitted with the connecting seat 301 and the clamping plate 302 respectively. Since the side walls of the connecting seat 301 and the clamping plate 302 are smooth, the sealing ring 5 can slide, which can both extrude the deformable medium 4 and achieve sealing.

[0026] In this application, the clamping plate 302 is annular. Since the tube 1 to be sealed has a certain elasticity, the clamping plate 302 is clamped on the tube 1 to be sealed, thereby achieving a seal. In order to improve the sealing effect, a second sealing ring 8 is provided between the tooling of this application and the tube 1 to be sealed.

[0027] In this application, the sealing cap 3 is put on the tube to be sealed 1, and the pressure cover 6 presses the splint 302 on the tube to be sealed 1 by squeezing the deforming medium 4 to achieve installation, and the sealing cap 3 seals the tube mouth; after the pressing is completed, the pressure cover 6 is opened, the squeezing force disappears, and the sealing cap 3 can be disassembled, which is simple and quick to use.

[0028] On the basis of the above structure, two structures can be set between the connecting seat 301 and the sealing plate 304, namely:

[0029] Example 1:

[0030] like Figure 1 As shown, the connecting seat 301 and the sealing plate 304 are connected by bolts, and a first sealing ring 2 is provided between the connecting seat 301 and the sealing plate 304 .

[0031] A gap exists between the upper end of the connector 301 and the tube 1 to be sealed. Since the sealing plate 304 is removable, the second sealing ring 8 can be directly placed over the tube 1 to be sealed, positioning it between the tube 1 and the connector 301. This creates an interference fit. The second sealing ring 8 is a lip-shaped seal. When the tube 1 is filled with pressurized medium, the pressurized lip of the lip-shaped seal deforms, tightly fitting against the connector 301 and the sidewalls of the tube 1 to be sealed, achieving a seal.

[0032] Embodiment 2:

[0033] like Figure 2 As shown, the sealing plate 304 and the connecting seat 301 are an integrated structure. At this time, an annular groove can be processed on the inner wall of the connecting seat 301, and a second sealing ring 8 is installed in the annular groove. The second sealing ring 8 can be an annular sealing ring such as an O-ring. The second sealing ring 8 protrudes from the annular groove. When the tube 1 to be sealed is installed, it can be pressed against the outside of the tube 1 to be sealed to achieve sealing. At the same time, the clamping plate 302 and the tube 1 to be sealed are clamped, fixed and sealed to achieve secondary sealing, thereby achieving sealing of the tube mouth of the tube 1 to be sealed.

[0034] In addition, the second sealing ring 8 can also be installed on the inner wall of the clamping plate 302.

[0035] The number of second sealing rings 8 can be multiple.

[0036] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A detachable nozzle sealing device for a pressure vessel, characterized in that: It includes a sealing cap installed on the outside of the tube to be sealed, the sealing cap includes a connecting seat, one end of the connecting seat is provided with a sealing plate, an elastic splint is provided in the connecting seat, the upper end of the splint is connected to the connecting seat, a deformation medium is provided between the splint and the connecting seat, the lower end of the connecting seat is connected to a pressure cover, and the pressure cover presses the splint against the outer wall of the tube to be sealed by squeezing the deformation medium.

2. A detachable nozzle sealing device for a pressure vessel according to claim 1, characterized in that: The deformation medium is liquid.

3. The detachable nozzle sealing device for a pressure vessel according to claim 1, wherein: The outer side of the deformation medium is covered with a sealing film.

4. The detachable nozzle sealing device for a pressure vessel according to claim 1, wherein: The lower end of the connecting seat is provided with an ear plate, the pressure cover and the pressure plate are connected by a tightening bolt, and the upper end of the pressure cover is provided with a top ring for extruding the deformation medium.

5. The detachable nozzle sealing device for a pressure vessel according to claim 4, characterized in that: A sealing ring is provided between the top ring and the deformable medium, and two sides of the sealing ring are tightly matched with the connecting seat and the clamping plate respectively.

6. The detachable nozzle sealing device for a pressure vessel according to claim 1, characterized in that: A second sealing ring is provided between the connecting seat and the tube to be sealed.

7. The detachable nozzle sealing device for a pressure vessel according to claim 1, wherein: The connecting seat and the sealing plate are connected by bolts, and a first sealing ring is provided between the connecting seat and the sealing plate.

8. The detachable nozzle sealing device for a pressure vessel according to claim 1, characterized in that: The sealing plate and the connecting seat are an integrated structure.

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