RU2690394C2 - Device for gas cylinder charging and sealing by welding - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to testing equipment in machine building and can be used in aviation and rocket production in production of high-pressure units of incombustible gas in long-term storage devices. Device for gas cylinder charging and sealing by welding, including the body, is installed on the filling nozzle of the cylinder and is made so that the technological hole for gas cylinder charging is sealed by means of melting of the charging nozzle by welding in the working pressure medium. Device is equipped with an electrode and a rod brought into translational motion by the lever so that the electrode touches the filling nozzle. Manual arc welding is used as welding.

EFFECT: technical result is increased reliability of object during long-term storage in article and reduced production costs due to absence of valves on cylinder.

1 cl, 4 dwg

Description

The invention relates to testing equipment in mechanical engineering and can be used in aviation and rocket production in the manufacture of high-pressure non-combustible gas blocks in long-term storage devices.

Known cylinders, charging which is performed from a pneumatic stand according to known technology with sealing after charging by means of a valve:

- welded steel cylinders for liquefied hydrocarbon gases at pressures up to 1.6 MPa, technical conditions [1. GOST 15860-84. Steel welded cylinders for liquefied petroleum gases for pressures up to 1.6 MPa. - M., 2003. - p. 3, hell. 1, type 3, type 4];

- steel cylinders of small and medium volume for gases at Р _р ≤19.6 MPa (200 kgf / cm ² ), technical conditions [2. GOST 949-73. Steel cylinders of small and medium volume for gases at P≤19.6 MPa (200 kgf / cm ² ). - M., 1988. - S. 2, 6, 7, 13.]

The disadvantage of these analogs [1, 2] is identical: due to the relaxation of stresses through the sealing elements of the valves, voltage recovery is possible only by tightening the seal. The degree of tightness allows the use of such structures only in ground conditions, where constant surveillance is possible.

Known closest to the claimed invention, the device for charging the cylinder with gas and sealing welding, in which the sealing of the technological opening for charging the cylinder with gas is provided by melting the inlet [3. Pat 4208841 DE, IPC F17C 5/00, F17C 5/06, B23K 26/12, B65B 31/02. It is possible to note that it has been possible to drill in the jung Walter, Dipl.-Ing., Mayer Gerhard, Vayhinger Kai-Uwe (DE). 03/19/1992; publ. 08/05/1993; 4. Pat. 6109004 US, IPC B65B 31/00, B23K 26/12, F17C 5/00, F17C 5/06. Device for high pressure vessel / Bauer Harald, Gebers Manfred, Siebenrock Peter (DE) - Declare 11/25/1998; publ. 08/29/2000.].

Disadvantages of devices [3., 4.]:

1. Melting occurs due to the laser beam. Such a device cannot be compact and technologically advanced, since special equipment is required to produce a laser.

2. Refillable cylinder is installed in a special device, the dimensions of which directly depend on the size of the cylinder.

The aim of the claimed invention is to create a simple and compact device for filling cylinders with non-combustible high-pressure gas and sealing them by manual arc welding without using caps, valves, etc. parts, with the possibility of reuse cylinders.

A device for charging a cylinder with gas and sealing it with welding, including a case mounted on the filling nozzle of the cylinder and made with sealing the process opening for charging the cylinder with gas by reflowing the charging nozzle by welding under working pressure. The device is equipped with an electrode and a rod, brought into translational motion by a lever, ensuring that the charging nozzle touches the electrode, while manual arc welding is used as welding.

The invention is illustrated by drawings, where in FIG. 1 shows a device for charging a cylinder with gas and sealing welding. The device consists of a housing 1, a cover 2, a lever 3, sealing rings 4, an abrasive screen 5, a collet 6, a cartridge 7, a rod 8, a contact 9, an electric cable 10, an electrode 11. The collet, a cartridge, an electrode, a cable and sealing rings are standard products.

FIG. 2 - a device for charging the cylinder with gas and sealing it by welding without section to the lever 3, collet 6, cartridge 7, rod 8, electric cable 10 and electrode 11, pin 9 is not visible.

FIG. 3 shows the rod 8.

FIG. 4 shows an abrasive screen.

The device works as follows. The device is screwed on the filling nozzle of the cylinder. Through the filling nozzle, the cylinder is filled with gas. Electrical cable 10 is energized for manual arc welding, the balloon itself and the device body must be grounded. When the lever 3 is rotated, the rod 8 is driven forward by the spiral guides on the rod 8 and the guides on the abrasive screen 5. At the same time, the electrode 11 touches the filling nipple of the cylinder and scalding occurs. Then, excess pressure is released from the device and undocked.

After repeated use of the device on the abrasive screen 5, slag is deposited due to splashing of the metal during welding, which is removed because The abrasive screen can be easily removed from the device by unscrewing the cover 2.

Technical result: increased reliability of the object during long-term storage in the product, and reduced production costs due to the lack of valves on the cylinder. The invention is a simple and compact device for filling cylinders with non-combustible high-pressure gas and sealing them by manual arc welding without using caps, valves, etc. parts, with the possibility of reuse cylinders.

The device can be made using standard equipment and materials of domestic production. Thus, the claimed device meets the criterion of "industrial applicability".

Sources taken into account

1. GOST 15860-84. Steel welded cylinders for liquefied petroleum gases for pressures up to 1.6 MPa: Specifications. - M., 2003. - p. 4, hell. 1, type 3, type 4.

2. GOST 949-73. Steel cylinders of small and medium volume for gases at P≤19.6 MPa (200 kgf / cm ² ): Technical conditions. - M., 1988. - pp. 2, 6, 7, 13.

3. Pat. 4208841 DE, IPC F17C 5/00, F17C 5/06, B23K 26/12, B65B 31/02. It is possible to note that it has been possible to drill in the jung Walter, Dipl.-Ing., Mayer Gerhard, Vayhinger Kai-Uwe (DE). 03/19/1992; publ. 08/05/1993;

4. Pat. 6109004 US, IPC B65B 31/00, B23K 26/12, F17C 5/00, F17C 5/06. Device for high pressure vessel / Bauer Harald, Gebers Manfred, Siebenrock Peter (DE) - Declare 11/25/1998; publ. 08/29/2000;

5. Pat. 2441209 RU, IPC G01L 19/06. Method of sealing the cavity filled with liquid by welding / Petukhov PA, Yurovsky A.Ya. - Claim. 10.27.2010; publ. 01/27/2012;

6. Pat. 102588734 CN, IPC F17C 5/00, F17C 13/06. Manufacturing process of metal bottle with air-tight seal / Jiang Jiang and others (CN) - Appl. 03/06/2012; publ. 07/18/2012;

7. Pat. 2010000940 JP, IPC F17C 1/00, B60R 21/26, F17C 5/06. Inflator and its manufacturing method / Tanaka Akimitsu et al. (JP) - Appl. 06/20/2008; publ. 01/07/2010.

8. Pat. 0947760 EP, IPC F17C 5/00, F16J 12/00, F17C 5/06, F17C 13/06. Gas capsule / Garret Michael Ernest (GB) - Appl. 03/19/1999; publ. 10/6/1999.

9. Pat. 20090313821 US, IPC B23P 17/00, B60R 21/26, F17C 1/00. Method of manufacturing of inflator / Asanuma Junichi and others (JP) - Appl. 06/18/2009; publ. 12/24/2009.

Claims (1)

A device for charging the cylinder with gas and sealing by welding, including a housing mounted on the filling nozzle of the cylinder and made to ensure sealing of the process opening for charging the cylinder with gas by reflowing the charging nozzle by welding in an operating pressure environment, characterized in that the device is equipped with an electrode and a rod driven in translational movement by a lever, ensuring that the electrode is in contact with the filling nozzle, while manual arc welding is used as welding.

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