The high-pressure bladder and method of its manufacture

 

(57) Abstract:

1 the Container is intended for long-term storage and transportation of liquefied gases, and a method for manufacturing a cylinder. The container includes a housing made in the form of a pipe, the top of which by welding fixed cover and the bottom, the bottom increased rigidity at the ends of the tube, protruding above pasted to the inside of the tube lid and bottom are formed as separate segments before welding, and is configured to contact with the outer end of the cover and the bottom, and a contact formed radially of the pipe ends with the ends of the tops and bottoms of intermittent. A method of manufacturing a cylinder includes fixing and fastening the pipe cover and the bottom, and sealing the joints is first carried out inside the upper part of the tube fixing intermittent welding seam of the cover, and in the lower part of the tube - plate, then the radial intermittent formation of the ends of the tube, protruding from the inserted inside the pipe cap and bottom, in the form of individual segments in places where there is no fixing of the weld, and at the end of the sealing joints by applying in the unformed end of the pipe corner welding seams, and in formed - nachlese sitsa to the field of metal forming and can be used in the manufacture of high-pressure cylinders for storage and transportation of compressed and liquefied gases mostly fire extinguishers.

The famous design of the container, including the glass neck, the edge of which is placed in the annular groove of the sleeve and the seal bushing neck is soldering [1].

A disadvantage of the known designs are the high accuracy requirements to the manufacturing process of the pressure vessel by cutting grooves in the sleeve, ensuring high precision of process of formation of the neck, the edge of which is placed in the annular groove of the sleeve. It is known that the pressure vessels are thick and require significant effort at stamping, and the higher the power of the press, the lower the precision. While the manufacture of glass is a very time consuming process, requiring a long time, money, and powerful equipment.

The known high-pressure bladder, including the glass neck, the inner surface of which is made in the form of a surface of the second order, attached to it by welding the sleeve, the side surface of which is made in the form of a surface of the second order, and the bushing located inside the container, provided with annular thickening, in addition, the internal is Asnah, and the same surfaces of the second order, and also in the form of a cone [2].

A disadvantage of known construction are high requirements for the construction of the vessel as a whole and the increased complexity of the manufacturing process of the Cup and sleeve, which significantly increases the complexity of manufacturing and the cost of the high-pressure bladder.

A known method of manufacturing a cylinder pressure, comprising a fastening sleeve in formulatea, the formation of the neckline with the placement of the edges of the neck in the groove of the sleeve and the sealing joint with the sleeve by soldering [1].

The disadvantage of this method is that when placing the edge of the cap in the groove of the sleeve is necessary to provide a high precision bushing driver and attaching the sleeve to the driver or in the absence of such requirements, there will be a gap between the inner wall of the cap and the corresponding surface in the groove of the sleeve, thus, soldering becomes simultaneously sealing and bearing element. In the latter case, decreasing the reliability of the high-pressure bladder for prolonged storage of liquefied or compressed gas. It is known that the pressure vessels are thick-walled tx2">

A known method of manufacturing a high-pressure bladder, including the orientation of the sleeve, forming a cap on the glass, the fixing sleeve in the neck with the subsequent sealing of the first carry out the orientation of the sleeve relative to the Cup by placing it inside the jar, and after formation of the cap moves the sleeve in the direction of the neck until it stops in the inner surface of the neck [2].

The disadvantage of this method is the high complexity of making glass, which consists in the many transitions when deep drawing and forming the profile of thick-walled glass, requiring the use of a significant amount of technological equipment of large capacity and effort. In addition, high accuracy is required in obtaining the conical surfaces in the manufacture of the neckline and sleeves. All this increases the complexity of manufacturing and the cost of the high-pressure bladder.

The objective of the invention is to provide a reliable technological design of a high-pressure bladder and less time-consuming method of its manufacture by reducing the requirements to the accuracy of geometrical dimensions of the parts of the container, reducing Kalicha metal in the manufacture of high-pressure cylinders in the batch and mass production.

The problem is solved using the proposed design of a high-pressure bladder, comprising a housing in the form of a pipe, the top of which by welding fixed cover, and the bottom plate of high rigidity at the ends of the tube, protruding above pasted to the inside of the tube lid and bottom are formed as separate segments before welding, and is configured to contact with the outer end of the cover and the bottom, and a contact formed radially of the pipe ends with the ends of the tops and bottoms of intermittent.

Along with this, the problem is solved using the proposed method of manufacturing a high-pressure bladder, including fixing and fastening the pipe cover and the bottom, and sealing the joints is first carried out inside the upper part of the tube fixing intermittent welding seam of the cover, and in the lower part of the tube - plate, then the radial intermittent formation of the ends of the tube, protruding from the inserted inside the pipe cap and bottom, in the form of individual segments in places where there is no fixing of the weld, and at the end of the sealing joints by applying in the unformed end of the pipe corner welding seams, and formed the international the texts are illustrated by the drawings.

In Fig.1 depicts a high-pressure bladder, a longitudinal section along a-a in Fig.2; Fig.2 is a top view along B in Fig.1; Fig.3 is a bottom view In Fig.1. In Fig.4-18 shows the sequence of the method for manufacturing a high-pressure bladder, where Fig.4 - procurement - pipe; Fig.5 - fixing cover inside top of the pipe intermittent weld seam; Fig.6 is a top view of at G in Fig.5; Fig.7 is a radial intermittent formation of the upper part of the tube, protruding above the cover; Fig.8 is a top view at D in Fig.7; Fig.9 - sealing of a joint of pipe with cover, a partial longitudinal section along e-E in Fig.8; Fig.10 is a top view at W in Fig.9; Fig.11 - the bottom of the increased rigidity of Fig.12 - fixing plate inside the bottom of the pipe intermittent weld seam; Fig.13 is a bottom view, And Fig.12; Fig.14 - radial intermittent formation of the lower part of the tube, protruding above the bottom of Fig.15 is a bottom view according To Fig.14; in Fig.16 - sealing of a joint of pipe to bottom of Fig.17 is a bottom view on L in Fig.16; Fig.18 control of the finished product.

The high-pressure bladder includes a housing 1 in the form of a pipe, the top of which by welding fixed cover 2, and at the bottom by welding the fixed plate 3 povyshen formirovanii in the form of individual segments before sealing by welding and is configured to contact with the outer end of the cover 2 and the bottom 3, moreover, the contact radially formed in separate segments of the end 4 of the pipe 1 with the ends of the cover 2 and the bottom 3 is intermittent.

Radially formed in the ends 4 of the housing 1 in the form of bent segments alternate with unformed end 5 of the casing, while the length of the unbent 4 and 5 direct segments are equal.

The tightness between the cover 2 and the bottom 3 of the housing 1 is provided by annular welds, and the tightness of the connection bent segments 4 of the housing with the ends of the cover 2 and the bottom 3 is provided lap 6 welded seam, and tightness straight segments 5 of the housing cover 2 and bottom 3 - corner 7 of the welded seam.

Tapered threaded hole in the cover 2 is designed for fastening of the valve (Fig.1 is not shown).

The work of the high-pressure bladder is as follows.

The gas stored in cylinders under high pressure, through the cover 2 and the bottom 3, inside the housing 1, acts on the radially formed bent segments 4 of the housing 1. Thus, the power element in the connection of the housing 1 with a cover 2 and a bottom 3 during operation of the cylinder are formed radially segments 4 of the housing 1, while on uneven sopr in the above-mentioned compounds are circular weld seams, change their appearance: lap 6 for sealing the folded segments 4 housing with a lid and bottom and corner 7 - for sealing straight segments 5 housing with a lid and bottom.

The proposed method of manufacturing a high-pressure bladder includes fixing and fastening in the tube blank 1 (Fig.4) cover 2 and the bottom 3, and the sealing of joints first carried out inside the upper part of the tube 1 fixing intermittent welding seam 8 of the cover 2 (Fig.5 and 6), and in the lower part of the tube 1 - plate 3 (Fig.11-13), then radial intermittent formation of the ends 4 of the pipe 1, protruding from the inserted inside the pipe 1 cover 2 (Fig.7 and 8) and plate 3 (Fig.14 and 15), in the form of individual segments in places where there is no locking of the bead 8, and end sealing of joints by applying in the unformed end 5 of the pipe 1 corner weld seams 7 and formed 4 - lap-welded seams 6 (Fig.9 and 10, 16 and 17). Double application of welding seams: first retainer, and then sealing in places immature segments 5, allows to increase the durability and reliability of the connection housing with a lid and bottom.

Radial forming all 4 tubes in the form of intermittent bent segments with ostavlenii requirements of the geometrical dimensions of the parts of the container, to reduce the number of operations and the efforts of the processing pressure, and process equipment.

Example. Produced tank of high pressure Pslave=22.5 MPa. The name of the container BVD-2000. Brand fire extinguisher - OU-2. The dimensions of the cylinder 108 x 325 mm Weight cylinder - 5,5 kg Billet housing - hot-rolled seamless steel pipe 108 x 5 GOST 8734 / 20 GOST 8733) length 325 mm Cover was produced by the inner diameter of the pipe in dimensions 98 x 6 mm Plate was re-stamped in dimensions 98 x16 mm of sheet thickness of 6 mm

First, inside the upper part of the tube was fixed cover intermittent welding seam according to GOST 14771-T1-MP, weld length is 25 mm, the distance between the joints 25 mm All around the circumference of the imposing 6-welding (see Fig.5 and 6). Then formed protruding above the top end of the pipe in the form of six separate segments with a length of 25 mm between the welding seams, the distance between the segments 25 mm (see Fig.7 and 8). In the end produced the seal cover with the housing by applying a lap welded seams in the seats formed by bent segments and corner welds in other places (see Fig.9 and 10) according to GOST 14771-U2-MP 135-8.

Connection plate with niinikoski seam according to GOST 14771-T1-MP, weld length is 25 mm, the distance between the joints 25 mm All around the circumference of the imposing 6-welding (see Fig.12 and 13). Then formed protruding above the bottom of the lower end of the tube in the form of six separate segments with a length of 25 mm between the welding seams, the distance between the segments 25 mm (see Fig.14 and 15). In the end produced the sealing connection of the bottom housing by applying a lap welded seams in the seats formed by bent segments and corner welds in other places (see Fig.16 and 17) according to GOST 14771-U2-MP-8.

Implemented a method of manufacturing a high-pressure bladder BVD-2000 is possible to reduce the accuracy requirements of production, reduce waste and reduce the complexity of manufacturing 2.4 times in comparison with the prototype [2].

The proposed method of manufacture and design of high-pressure bladder allows to increase reliability, durability and manufacturability, reduce the accuracy requirements of production, to reduce the number of operations and technological equipment and to use the standard profile metal in the manufacture of high-pressure cylinders in terms of serial and mass production, to reduce the complexity of iseli

1. U.S. patent 2405201, NC. 29-422, publ. 06.08.46.

2. Utility model RO 12209 01. The cylinder pressure. Fedulov S. A., 16.12.99 - prototype

1. Cylinder high pressure, comprising a housing made in the form of a pipe, the top of which by welding fixed cover, and the bottom plate of high rigidity, characterized in that the ends of the tube, protruding above is inserted into the inside of the tube lid and bottom are formed as separate segments before welding, and is configured to contact with the outer end of the cover and the bottom, and a contact formed radially of the pipe ends with the ends of the tops and bottoms of intermittent.

2. A method of manufacturing a high-pressure bladder under item 1, including fixing and fastening the pipe cover and the bottom, and sealing of joints, wherein the first carried out inside the upper part of the tube fixing intermittent welding seam of the cover, and in the lower part of the tube - plate, then the radial intermittent formation of the ends of the tube, protruding inserted into the inside of the tube lid and bottom, in the form of individual segments in places where there is no fixing of the weld, and at the end of the sealing joints by applying in the unformed end of the pipe angle

 

Same patents:

The invention relates to shells made of composite materials, in particular reinforced casings for high pressure, is used as a load-bearing body parts in terms of short-term exposure to excessive internal pressure

The invention relates to cylinders for storage and transport of compressed gases under pressure, particularly to tanks for storing oxygen, hydrogen and other gases, and may find application as a necessary part of equipment for climbers, scuba divers, as well as for cars running on compressed natural gas

The invention relates to cylinders for storage and transport of compressed gases under pressure, particularly to tanks for storing oxygen, hydrogen and other gases, and may find application as a necessary part of equipment for climbers, scuba divers, as well as for cars running on compressed natural gas

The invention relates to the field of engineering, namely, cylinder pressure, izgotovliaemye of composite material, and can be used to create solid-propellant rocket engines, chemical engineering and other industries

The invention relates to the field of engineering, namely, cylinder pressure, izgotovliaemye of composite material, and can be used to create solid-propellant rocket engines, chemical engineering and other industries

The invention relates to the field of gas equipment, namely, metal cylinders high pressure, used in particular in portable oxygen breathing apparatus climbers, rescuers, in portable products cryogenic and fire-fighting equipment, vehicles, systems of gas supply

The invention relates to the processing of metals by pressure and can be used in the manufacture of high-pressure cylinders for storage and transportation of compressed and liquefied gases, mainly fire extinguishers

The invention relates to the processing of metals by pressure, in particular to a pressure processing rollers without deliberate thinning of the wall flat or cupped blanks

Balloon // 2169880
The invention relates to the structures of the combined cylinder pressure and can be used in the manufacture of lightweight cylinders for vehicles, aircraft, transportation of compressed gases

The invention relates to the field of metal forming and welding, and in particular to methods of manufacturing a cylindrical cylinder with convex bottoms, widely used in various branches of engineering as reservoirs for gas and liquid

The invention relates to the processing of metals by pressure and can be used in the manufacture of high-pressure cylinders for storage and transportation of compressed and liquefied gases mainly for the production of fire extinguishers

The invention relates to the processing of metals by pressure and can be used in the manufacture of, for example, the casings of the bottoms of aluminum alloys, working under pressure

The invention relates to mechanical engineering and can be used in regenerative repair of acetylene cylinders, as well as the manufacture of acetylene cylinders and high-pressure cylinders other modifications and assignments

The invention relates to designs of fiberglass tanks reusable, working under pressure and allowing to simplify the manufacturing method, and method of manufacturing cylinders

The invention relates to the processing of metals by pressure and can be used in mechanical engineering for production, for example, fire extinguishers, gas cylinders, etc

The invention relates to a process of manufacturing a metallic gas cylinders from low-carbon steel, and in particular to methods of manufacturing a sealed thin-walled housings pneumoconiotic cylinders (household, sports, automotive, aviation, rail, ship, etc

FIELD: plastic working of metals, namely manufacture of high-pressure bottles.

SUBSTANCE: method comprises steps of forming shell; swaging at least one open end of shell; forming bottom and mouth while making at least two mutually joined cone surfaces and increasing central angle from shell to mouth; at least after one swaging operation performing heat treatment of swaged end of shell. High-pressure bottle includes shell and two bottoms. One bottom has mouth for placing locking means. Bottom and mouth are made as one piece. Bottom from shell until mouth is in the form at least of two joined lateral surfaces of circular regular truncated cones. Each such joint is performed due to joining lateral surfaces of truncated cones along lines of bases of their small and large diameters respectively. Said joints may be smooth, with radius transitions.

EFFECT: simplified design of bottle, enhanced technological effectiveness of making it.

6 cl, 4 dwg

Up!