LANCE OF A CLEANING KIT FOR MEDIUM-VOLTAGE POWER DEVICES

Abstract

The invention solves the problem of the construction of a lance of a cleaning kit for medium-voltage power devices. The lance is equipped with an external assembly (A) and an internal assembly (B) placed therein, wherein the external assembly (A) constitutes a head (1) with clamps (2) and (3) of connections, mounted in it from the front, and connected to a body (4). The body (4) is detachably connected to an extension (5), which at the opposite end is detachably connected to a dispensing nozzle (6).

Claims

1. A lance of a cleaning kit for medium-voltage power devices, wherein said lance is equipped with an external assembly and an internal assembly placed therein, wherein the external assembly is a head with clamps of connections, mounted in from a front, connected to the body detachably connecting to an extension, which at the opposite end is detachably connected to a dispensing nozzle; wherein inside the external assembly there is a an anti-frosting gas flow channel, connected to the clamp of an anti-frosting gas connection, while a sleeve constituting the internal assembly located axially in the body creates a cleaning gas flow channel and is connected to a cleaning gas clamp; wherein the head has a form of a solid of revolutions, and in a cylindrical part, the sleeve is shaped in a form of a bulb, inside which an openwork baffle is installed transversely, while from a side of a connection with the extension, on an inner surface of a sleeve of the body, there is a threading matching threading on an outer surface of a tip of the extension, creating a tight coupling of the extension with the body, secured from outside with a press-fit mounted outer wall of the extension; wherein the body, at an end from outside, has a recess over which a ring is mounted, secured with a flange, while the same recess is located on an outer wall of the dispensing nozzle, in an initial section, in form of a sleeve, and then widening to sides into a form of a flattened solid with diagonally diverging side walls, open at an end, wherein a sleeve of the dispensing nozzle being a section of the gas cleaning channel, narrows and then widens towards point, and flared walls thereof run parallel to walls of the anti-frosting agent flow channel and together with angularly bent walls and form a closed circuit of a cleaning gas channel surrounded by an area of the anti-frosting agent flow channel.

2. The lance according to claim 1, wherein an element of equipment thereof is a protective cover mounted on the body, and pressed against a flange with a nut.

3. The lance according to claim 1, wherein the clamp is connected to the anti-frosting gas connection, and the clamp is connected to the cleaning gas connection.

4. The lance according to claim 1, wherein a central part of the head is formed by a cylinder with diagonally cut walls and adhering thereof at both ends, wherein the wall, from a side of the clamps and is stepped, converging towards a surface filter of impurities in a cleaning gas.

5. The lance according to claim 1, wherein an openwork baffle is a mechanical filter of impurities in a cleaning gas.

6. The lance according to claim 1, characterized in that it is made of a dielectric material.

7. The lance according to claim 1, wherein the dispensing nozzle at an end is parallel to ground or angularly bent.

Description

[0021] The subject of the invention has been illustrated in the attached drawing, in which

[0022] FIG. 1 shows a general view of the lance, example 1;

[0023] FIG. 2 shows a general view of the lance, example 2;

[0024] FIG. 3 shows a top view of the lance with the cleaning gas and anti-frosting flow clamps shown along with details presenting the views from the side of the clamps and the side of the dispensing nozzle, example 1;

[0025] FIG. 4 shows the lance in A-A section along with the coupling to the cleaning gas clamp, example 1;

[0026] FIG. 5 shows the lance in B-B section along with the gas clamps, example 1;

[0027] FIG. 6 shows a side view of is the lance, example 2;

[0028] FIG. 7 shows the lance in C-C section, example 2;

[0029] FIG. 8 shows the lance in D-D section, example 2;

[0030] FIG. 9 illustrates the extension in cross section;

[0031] FIG. 10 shows the body in cross-section.

[0032] The lance of the cleaning kit for medium-voltage power devices is an essential element of the kit equipment.

[0033] The lance, example 1, made of a dielectric material, is provided with an external assembly A and an internal assembly B placed therein.

[0034] The external lance assembly A of the cleaning kit for medium-voltage power devices, according to the solution, is a head 1 with clamps 2 and 3 of gas connections mounted in it from the front, connected to a body 4, which is detachably connected to an extension 5, which at the opposite end is detachably connected to a dispensing nozzle 6.

[0035] The clamp 2 is connected to the anti-frosting gas connection, while clamp 3 is connected to the cleaning gas connection.

[0036] A flow channel for an anti-frosting gas A is formed within the external assembly A, and is connected to the anti-frosting gas connection clamp 2, while a sleeve 7, located axially in the body 4, is a cleaning gas flow channel B and is connected to the cleaning gas clamp 3.

[0037] The head 1 has the form of a solid of revolutions, which central part forms a cylinder 8 with diagonally cut walls 9 and 10, adhering to it at both ends, and the wall 9, from the side of the clamps 2 and 3, is stepped, converging towards the surface on which the clamps 2 and 3 of the connections are installed.

[0038] The head 1 is connected to the body 4, which is in the form of a tube, with the sleeve 7 of the internal assembly B axially mounted therein, connected to the clamp 2 of the cleaning gas connection. The sleeve 7 in the cylindrical part of the head 1 is shaped in the form of a bulb, inside which an openwork baffle 11 is installed transversely, acting as a mechanical filter, arresting impurities from the cleaning gas, which is directed from the connection with the clamp 2.

[0039] The sleeve of the body 4 of the external assembly A, from the connection side of the extension 5, has a threading 12 on the inner surface, matching the threading 13 made on the outer surface of the extension 5. Cooperation between these threadings allows to obtain a tight coupling of the extension 5 with the body 4, secured from the outside with a press-fit of the outer wall 5 of the extension 5 on the part 14 of the wall of the tube of the body 4 recessed from the outside.

[0040] Above the recess 14, the tube of the body 4 has a ring 15 secured with a flange 16. The same solution, representing the coupling of the body 4 with the extension 5 is located on the opposite side of the extension 5, connecting it with the dispensing nozzle 6.

[0041] The dispensing nozzle 6, connected to the extension 5, has in its initial section the form of a tube which constitutes a continuation of the anti-frosting gas flow channel A with the sleeve 7 of the cleaning gas flow channel B located inside. The dispensing nozzle widens at a certain distance from the connection point with the extension 5, turning into a flattened solid with diagonally diverging side walls 17, open at the end. The flattened surface of the dispensing nozzle 6, example 1, is horizontal to the ground.

[0042] Located in the dispensing nozzle 6, the sleeve 7 of the cleaning gas flow channel B narrows towards point C, and then widens. Walls 18 of the cleaning gas channel B, tilted to the sides, are placed parallel to the walls 17 of the anti-frosting gas flow channel A.

[0043] Located perpendicularly to the flared side walls 17 and 18, walls 19 and 20 form, in cross-section, closed circuits of the cleaning gas channel B surrounded by the area of the anti-frosting gas flow channel A. Keeping the walls of the channels A and B at a constant distance is ensured by fastening ribs 21 mounted between the walls 17 and 18.

[0044] An element of the lance equipment, according to the solution, example 1, is a protective, transparent cover 22, mounted on the body 4, and pressed against the flange 16 with a nut 23.

[0045] According to the invention, the lance, example 2, is made of a dielectric material and provided with an external assembly A and an internal assembly B placed therein.

[0046] The external assembly A of the lance of the cleaning kit for medium-voltage power devices, according to the solution, is a head 1 with clamps 2 and 3 of gas connections mounted in it from the front, connected to a body 4 detachably connected to an extension 5, which at the opposite end is detachably connected to a dispensing nozzle 6.

[0047] The clamp 2 is connected to the anti-frosting gas connection, while the clamp 3 is connected to cleaning gas connection.

[0048] Inside the external assembly A, an anti-frosting gas flow channel A is formed, which is connected to the anti-frosting gas connection clamp 2, while a sleeve 7, located axially in the body 4, is a cleaning gas flow channel B and is connected to the cleaning gas clamp 3.

[0049] The head 1 has the form of a solid of revolutions, wherein the central part of the head forms a cylinder 8 with diagonally cut walls 9 and 10 adhering to it at both ends, and the wall 9, from the side of the clamps 2 and 3, is stepped, converging towards the surface on which the clamps 2 and 3 of the connections are installed.

[0050] The head 1 is connected to the body 4, which is in the form of a tube, with the sleeve 7 of the internal assembly B axially mounted therein, connected to the clamp 2 of the cleaning gas connection. The sleeve 7 in the cylindrical part of the head 1 is shaped in the form of a bulb, inside which an openwork baffle 11 is installed transversely, acting as a mechanical filter arresting impurities from the cleaning gas, which is directed from the connection with the clamp 2.

[0051] The sleeve of the body 4 of the external assembly A, from the connection side of the extension 5, has a threading 12 on the inner surface matching the threading 13 made on the outer surface of the extension 5. Cooperation between these threadings allows to obtain a tight coupling of the extension 5 with the body 4, secured from the outside with a press-fit of the outer wall 5 of the extension 5 on the part 14 of the wall of the tube of the body 4 recessed from the outside.

[0052] Above the recess 14, the tube of the body 4 has a ring 15 secured with a flange 16. The same solution, representing the coupling of the body 4 with the extension 5, is on the opposite side, connecting the extension 5 with the dispensing nozzle 6.

[0053] The dispensing nozzle 6, connected with the extension 5, has in its initial section the form of a sleeve which constitutes a continuation of the anti-frosting gas flow channel A with the sleeve 7 of the cleaning gas flow channel B located inside, expanding at a certain distance from the connection point with the extension 5. It turns into a flattened solid with diagonally extending side walls 17, open at the end.

[0054] The flattened surface of the dispensing nozzle 6, example 2, is angularly bent.

[0055] Placed in the dispensing nozzle 6, the sleeve 7 of the cleaning gas flow channel B narrows towards point C, and then widens. Walls 18 of the cleaning gas channel B, tilted to the sides, are placed parallel to the walls 17 of the anti-frosting gas flow channel A.

[0056] Located perpendicularly to the flared side walls 17 and 18, walls 19 and 20 form, in cross-section, closed circuits of the cleaning gas channel B surrounded by the area of the anti-frosting gas flow channel A. Keeping the walls of the channels A and B at a constant distance is ensured by fastening ribs 21 mounted between the walls 17 and 18.

[0057] An element of the lance equipment, according to the solution, example 2, is a protective, transparent cover 22, mounted on the body 4, and pressed against the flange 16 of a nut 23.