CN205211596U - Frock is aerifyd in evacuation of SF6 sleeve pipe - Google Patents

Abstract

The utility model relates to a frock is aerifyd in evacuation of SF6 sleeve pipe belongs to the transformer and makes professional equipment technical field. Its characterized in that: be equipped with changing -over first (6), changing -over first two (7) and crossover sub three (8) on three way connection (5) respectively, the changing -over is first to be connected with SF6 gas cylinder valve through hose two (14), and SF6 gas cylinder valve sets up in SF6 gas cylinder exit, crossover sub no. 3 is connected with vacuum pumping unit through hose no. 1, and the one end that hose no. 1 is close to crossover sub no. 3 is equipped with valve and evacuation apron in proper order, changing -over first two is connected with SF6 buchholz relay through hose no. 3, SF6 buchholz relay sets up on the transformer body, and one side of transformer body is equipped with the SF6 sleeve pipe, and the SF6 sleeve pipe passes through hose no. 4 and is connected with SF6 buchholz relay. The beneficial effect of the utility model: easy operation, production cost is low, and the commonality is strong, is convenient for install and disassemble and carry, has practiced thrift the purchasing cost of equipment, has improved work efficiency, guarantees product quality.

Description

A kind of SF 6sleeve pipe vacuumizes Aerated tool equipment

Technical field

The utility model relates to a kind of SF ₆sleeve pipe vacuumizes Aerated tool equipment, belongs to transformer manufacturing special equipment technical field.

Background technology

In transformer manufacturing process, the space between the insulator of HSP high voltage direct current GSETF molded cannula and composite insulator is by the SF compressed ₆insulating gas is filled.Owing to considering transportation safety, this sleeve pipe air pressure when transporting is 20Kpa, but tests after the assembling of GSETF molded cannula and need before coming into operation to fill SF ₆gas is to working pressure.At filling SF ₆need before insulating gas to measure SF in sleeve pipe ₆insulating gas dew point value, as need by the SF in tunica pipe time undesirable ₆insulating gas drains, and again vacuumizes sleeve pipe and fills SF ₆insulating gas, to working pressure, owing to not having a set of frock that can meet sleeve pipe and vacuumize and inflate simultaneously, operates and wastes time and energy, and increases purchase cost, reduces operating efficiency.

Utility model content

The purpose of this utility model is to provide a kind of SF ₆sleeve pipe vacuumizes Aerated tool equipment, for the design feature of high voltage direct current GSETF molded cannula, has made a set of frock that can meet sleeve pipe simultaneously and vacuumize and inflate, time saving and energy saving, save the purchase cost of equipment, improve operating efficiency, solve the problems referred to above that background technology exists.

The technical solution of the utility model is:

A kind of SF ₆sleeve pipe vacuumizes Aerated tool equipment, comprises SF ₆buchholz relay, SF ₆sleeve pipe, SF ₆gas cylinder, vacuumize unit, three-way connection, crossover sub one, crossover sub two, crossover sub three, valve, vacuumize cover plate, transformer body, SF ₆gas cylinder valve, flexible pipe one, flexible pipe two, flexible pipe three, flexible pipe four, described three-way connection is respectively equipped with changing-over is first, changing-over two and crossover sub three; Described changing-over is first by flexible pipe two and SF ₆gas cylinder valve connects, SF ₆gas cylinder valve is arranged on SF ₆cylinder outlet place; Described crossover sub three by flexible pipe one with vacuumize unit and be connected, flexible pipe one is provided with valve successively close to one end of crossover sub three and vacuumizes cover plate; Described changing-over two is by flexible pipe three and SF ₆buchholz relay connects; Described SF ₆buchholz relay is arranged on transformer body, and the side of transformer body is provided with SF ₆sleeve pipe, SF ₆sleeve pipe is by flexible pipe four and SF ₆buchholz relay connects.

Described crossover sub is M20-M42 crossover sub.

Described flexible pipe is the 5 meters long SF tolerating vacuum ₆metal hose, metal hose two end connector is M20 internal thread.

Described three-way connection is the three-way connection of band angle type check valve.

Described SF ₆gas cylinder valve is SF ₆the pressure-reducing valve of the special bipolar vacuum-resistant of gas cylinder.

Described valve is DN15 copper valve.

The beneficial effects of the utility model: simple to operate, manufacturing cost is low, highly versatile, is convenient to install and disassemble carry, and has saved the purchase cost of equipment, has improve operating efficiency, ensured product quality.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

In figure: SF ₆buchholz relay 1, SF ₆sleeve pipe 2, SF ₆gas cylinder 3, vacuumize unit 4, three-way connection 5, crossover sub 1, crossover sub 27, crossover sub 38, valve 9, vacuumize cover plate 10, transformer body 11, SF ₆gas cylinder valve 12, flexible pipe 1, flexible pipe 2 14, flexible pipe 3 15, flexible pipe 4 16.

Embodiment

Below in conjunction with accompanying drawing 1, the utility model is described in further detail.

A kind of SF ₆sleeve pipe vacuumizes Aerated tool equipment, comprises SF ₆buchholz relay 1, SF ₆sleeve pipe 2, SF ₆gas cylinder 3, vacuumize unit 4, three-way connection 5, crossover sub 1, crossover sub 27, crossover sub 38, valve 9, vacuumize cover plate 10, transformer body 11, SF ₆gas cylinder valve 12, flexible pipe 1, flexible pipe 2 14, flexible pipe 3 15, flexible pipe 4 16, described three-way connection 5 is respectively equipped with changing-over is first 6, changing-over 27 and crossover sub 38; Described changing-over first 6 is by flexible pipe 2 14 and SF ₆gas cylinder valve 12 connects, SF ₆gas cylinder valve 12 is arranged on SF ₆gas cylinder 3 exit; Described crossover sub 38 by flexible pipe 1 with vacuumize unit 4 and be connected, flexible pipe 1 is provided with valve 9 successively close to one end of crossover sub 38 and vacuumizes cover plate 10; Described changing-over 27 is by flexible pipe 3 15 and SF ₆buchholz relay 1 connects; Described SF ₆buchholz relay 1 is arranged on transformer body 11, and the side of transformer body 11 is provided with SF ₆sleeve pipe 2, SF ₆sleeve pipe 2 is by flexible pipe 4 16 and SF ₆buchholz relay 1 connects.

Operating process:

1, SF is connected ₆sleeve pipe and SF ₆the union of Buchholz relay, checks SF ₆sF in sleeve pipe ₆the pressure of insulating gas and dew point value;

2, by flexible pipe by three-way connection, SF ₆gas cylinder valve, SF ₆gas cylinder, vacuumize unit, valve, vacuumize cover plate and SF ₆buchholz relay is connected;

3, as SF ₆sF in sleeve pipe ₆when insulating gas dew point value is undesirable, opens all valve openings and vacuumize unit by SF ₆undesirable SF in sleeve pipe ₆insulating gas is extracted out, and to SF ₆sleeve pipe and whole pipeline carry out vacuumizing process;

4, close after vacuum reaches requirement and vacuumize unit and valve, open SF ₆gas cylinder valve is to SF ₆sleeve pipe carries out filling SF ₆insulating gas, until sleeve pipe meets working pressure;

5, as SF ₆sF in sleeve pipe ₆insulating gas dew point value is qualified, then only to SF ₆the loading line of sleeve pipe is inflated after carrying out vacuumizing process.

Claims (1)

1. a SF ₆sleeve pipe vacuumizes Aerated tool equipment, it is characterized in that: comprise SF ₆buchholz relay (1), SF ₆sleeve pipe (2), SF ₆gas cylinder (3), vacuumize unit (4), three-way connection (5), crossover sub one (6), crossover sub two (7), crossover sub three (8), valve (9), vacuumize cover plate (10), transformer body (11), SF ₆gas cylinder valve (12), flexible pipe one (13), flexible pipe two (14), flexible pipe three (15), flexible pipe four (16), described three-way connection (5) is respectively equipped with changing-over first (6), changing-over two (7) and crossover sub three (8); Described changing-over first (6) is by flexible pipe two (14) and SF ₆gas cylinder valve (12) connects, SF ₆gas cylinder valve (12) is arranged on SF ₆gas cylinder (3) exit; Described crossover sub three (8) by flexible pipe one (13) with vacuumize unit (4) and be connected, flexible pipe one (13) is provided with valve (9) successively close to one end of crossover sub three (8) and vacuumizes cover plate (10); Described changing-over two (7) is by flexible pipe three (15) and SF ₆buchholz relay (1) connects; Described SF ₆buchholz relay (1) is arranged on transformer body (11), and the side of transformer body (11) is provided with SF ₆sleeve pipe (2), SF ₆sleeve pipe (2) is by flexible pipe four (16) and SF ₆buchholz relay (1) connects.