CN102623913A

CN102623913A - Underground box-type high voltage transformation equipment

Info

Publication number: CN102623913A
Application number: CN2011100305044A
Authority: CN
Inventors: 何排枝
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-28
Filing date: 2011-01-28
Publication date: 2012-08-01
Anticipated expiration: 2031-01-28
Also published as: CN102623913B

Abstract

The invention provides a piece of underground box-type high voltage transformation equipment with good waterproof, moistureproof and sealing effects. A metallic box body of the equipment adopts an all-welded closed structure, a metallic base is welded and fixed on the box body, and incoming and outgoing cables outside the box body are electrically connected with the high voltage transformation equipment in the box body through a multi-level sealing structure of the base. The multi-level sealing structure comprises a first level sealing and a second level sealing. In the first level sealing, multiple insulating pillars are fixed in the inside of a first wiring base through sealing fixing parts of the insulating pillars, and multiple second wiring bolts are sealed in the inside of a second wiring base by insulating fixing materials, wherein conducting rods are fixed in the insulating pillars. In the second level sealing, insulating and waterproof materials are filled to the base, one end of the multiple conducting rods and the multiple second wiring bolts is positioned in a cavity of the box body and is electrically connected with the high voltage transformation equipment, and the other end thereof is positioned in the base and is electrically connected with the incoming and outgoing cables outside the box body. In the invention, incoming and outgoing cables are connected to the box body through a multi-level waterproof structure, so that electrical equipment inside the box body are completely separated from underground water, thereby achieving better waterproof, moistureproof and sealing effects.

Description

A kind of buried box type high-voltage power transformer equipment

Technical field

The present invention relates to a kind of box type high-voltage power transformer equipment, the whole buried buried box type high-voltage power transformer equipment of particularly a kind of ability.

Background technology

Existing high-tension transformation equipment such as transformer station or combination transformer etc. are normally built on the ground, are destroyed easily, and take ground resource, have both influenced vehicle or personnel walking, hinder environmental beauty again.The applicant is devoted to research and develop a kind of submersible or buried box type high-voltage power transformer equipment to overcome the problems referred to above that exist in the prior art always; And in order to reach better sealing and water proof effect; To adapt to multiple complicacy and moist underground environments such as river, river, lake, low-lying area, the applicant develops the novel buried box type high-voltage power transformer equipment that this case is submitted to.

Summary of the invention

The present invention provides the buried box type high-voltage power transformer equipment of a kind of waterproof, protection against the tide and good sealing effect.

The present invention solves the technical scheme that its problem adopts:

A kind of buried box type high-voltage power transformer equipment; Comprise metal cabinet and be built in the high-tension transformation equipment in the casing; Said metal cabinet is full welding closed structure; It is characterized in that: be welded with the metal pedestal on the metal cabinet, said pedestal comprises primary connection pedestal and secondary connection pedestal, and what casing was outer realizes being electrically connected with the high-tension transformation equipment in the casing into and out of the multi-stage sealed structure of line cable through pedestal; Said multi-stage sealed structure comprises: A, primary seal: there have the sealing fixture of a plurality of insulation columns through separately to be fixed on said primary connection pedestal to be inboard, and the insulation column internal fixation has contact rod; There are a plurality of secondary connection bolts to be insulated immobilization material and are sealed in said secondary connection pedestal inboard; B, secondary seal: be filled with the insulative water-proof material in the said pedestal; One end of said a plurality of contact rod and a plurality of secondary connection bolts is positioned at box cavity and is electrically connected with high-tension transformation equipment, and the other end is positioned at pedestal and outer being electrically connected into and out of the line cable of casing.

As optimal way of the present invention; Said a plurality of insulation column is inboard at the primary connection pedestal through the insulation immobilization material sealing and fixing of cast in metallic sheath and the metallic sheath, be cast with between insulation column and the contact rod insulation immobilization material with the contact rod sealing and fixing in insulation column; Said secondary connection bolt is provided with metallic sheath outward, and said insulation immobilization material is cast in the metallic sheath; Said pedestal top is equipped with blind flange.

Said insulation immobilization material is mixed by epoxy resin and binding agent; Said insulative water-proof material is pitch or silicon rubber.

As further improvement of the present invention, said multi-stage sealed structure also comprises C, three grades of sealings: waterproof sealing is realized through flange and seal gasket in the outer junction into and out of line cable and pedestal of said casing.

The invention has the beneficial effects as follows: casing is full welding closed structure; Simultaneously adopt multistage waterproof construction to connect into casing into and out of the line cable; Such structure can make the electric equipment of box house and underground water realize isolating fully, reaches better waterproof, protection against the tide and sealing effectiveness.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described further.

Fig. 1 is the stereogram of an embodiment of the present invention;

Fig. 2 is the internal structure sketch map of Fig. 1 embodiment;

Fig. 3 is the internal structure sketch map of Fig. 1 embodiment other direction;

Fig. 4 is the sketch map of user mode of the present invention;

Fig. 5 is the stereogram of the another kind of embodiment of the present invention;

Fig. 6 is the internal structure sketch map of Fig. 5 embodiment.

Embodiment

With reference to Fig. 1～Fig. 4; A kind of buried box type high-voltage power transformer equipment of the present invention; Comprise metal cabinet 1 and be built in the high-tension transformation equipment 5 in the casing; Said metal cabinet 1 is full welding closed structure; Be welded with a plurality of metal pedestals 4 on the metal cabinet, said a plurality of metal pedestals 4 comprise primary connection pedestal 41 and secondary connection pedestal 42, and what casing was outer realizes being electrically connected with the high-tension transformation equipment 5 in the casing 1 into and out of the multi-stage sealed structure of line cable 31,32 through pedestal 4; Said multi-stage sealed structure comprises: A, primary seal: have the sealing fixture of a plurality of insulation columns 61 through separately to be fixed on said primary connection pedestal 41 inboards, insulation column 61 internal fixation have contact rod 63; There are a plurality of secondary connection bolts 65 to be insulated immobilization material 64 and are sealed in said secondary connection pedestal 42 inboards; B, secondary seal: be filled with insulative water-proof material 7 in the said pedestal 4; One end of said a plurality of contact rod 63 and a plurality of secondary connection bolts 65 is positioned at box cavity and is electrically connected with high-tension transformation equipment 5, and the other end is positioned at pedestal 4 and outer being electrically connected into and out of line cable 31,32 of casing.

As preferred implementation of the present invention, insulation immobilization material 64 sealing and fixing that said a plurality of insulation columns 61 pass through cast in metallic sheath 62 and the metallic sheath are in primary connection pedestal 41 inboards.Be cast with between said insulation column 61 and the contact rod 63 insulation immobilization material 64 with contact rod 63 sealing and fixing in insulation column 61.Be provided with metallic sheath 62 outside the said secondary connection bolt 65, said insulation immobilization material 64 is cast in the metallic sheath 62.

Insulation column 61 can adopt epoxy or ceramic leg, and insulation immobilization material 64 preferred epoxy and binding agent mix, and insulative water-proof material 7 can be pitch or silicon rubber.

The secondary seal of present embodiment adopts the waterproof material of insulation such as pitch prill or silicon rubber to be cast in the metal pedestal; Thereby will be into and out of the junction good seal of line cable termination and insulation column and secondary bolt and casing; Play the effect of waterproof and electric insulation; Behind the casting complete, in pedestal 4 top mounting flange lid 43 sealings; The primary seal of present embodiment is the insulation immobilization material that insulation column casting epoxy resin and binding agent are mixed, and adopts metallic sheath and insulation immobilization material that insulation column and contact rod are fixed, and has strengthened insulation and good waterproof effect when fixing again.

High-tension transformation equipment 5 in the present embodiment comprises batch meter 51 and the vacuum switch 52 that is built in the casing; Be welded with three pedestals 4 on the said casing 1; Be respectively inlet wire wiring pedestal 411, an outlet wiring pedestal 412 and a secondary outlet wiring pedestal 42; Contact rod 63 on the said inlet wire wiring pedestal 411 is electrically connected with vacuum switch 52; Contact rod 63 on outlet wiring pedestal 412 is electrically connected with the primary connection post 511 of batch meter, and the secondary bolt 65 on the said secondary outlet wiring pedestal 42 is electrically connected with the secondary connection post 512 of batch meter.

With reference to Fig. 5, Fig. 6, another kind of embodiment of the present invention, said high-tension transformation equipment 5 comprise transformer 53, batch meter 51 and the vacuum switch 52 that is built in the casing; Be welded with two pedestals 4 on the said casing 1; Be respectively inlet wire wiring pedestal 41 and secondary outlet wiring pedestal 42 each; Contact rod 63 on the said inlet wire wiring pedestal 41 is electrically connected with vacuum switch 52, and the secondary bolt 65 on the said secondary outlet wiring pedestal 42 is electrically connected with the secondary connection post 512 of batch meter and the low tension terminal 531 of transformer respectively.

As preferred implementation of the present invention, said multi-stage sealed structure also comprises C, three grades of sealings: waterproof sealing is realized through flange 81 and seal gasket 82 in the outer junction into and out of line cable 31,32 and pedestal 4 of promptly said casing.

Casing of the present invention is full welding closed structure; Simultaneously adopt multistage waterproof construction to connect into casing into and out of the line cable; Such structure can make the electric equipment of box house and underground water realize isolating fully; Reach better waterproof, protection against the tide and sealing effectiveness, can be in multiple complicacy such as river, river, lake, low-lying area and moist underground environment.

Claims

1. buried box type high-voltage power transformer equipment; Comprise metal cabinet (1) and be built in the high-tension transformation equipment (5) in the casing (1); Said metal cabinet (1) is full welding closed structure; It is characterized in that: be welded with a plurality of metal pedestals (4) on the metal cabinet; Said a plurality of pedestal (4) comprises primary connection pedestal (41) and secondary connection pedestal (42), and what casing was outer realizes being electrically connected with the high-tension transformation equipment (5) in the casing (1) into and out of the multi-stage sealed structure of line cable (31,32) through pedestal (4), and said multi-stage sealed structure comprises:

A, primary seal: have the sealing fixture of a plurality of insulation columns (61) through separately to be fixed on said primary connection pedestal (41) inboard, insulation column (61) internal fixation has contact rod (63); There are a plurality of secondary connection bolts (65) to be insulated immobilization material (64) and are sealed in said secondary connection pedestal (42) inboard; B, secondary seal: be filled with insulative water-proof material (7) in the said pedestal (4); One end of said a plurality of contact rod (63) and a plurality of secondary connection bolt (65) is positioned at box cavity and is electrically connected with high-tension transformation equipment (5), and the other end is positioned at pedestal (4) and outer being electrically connected into and out of line cable (31,32) of casing.

2. buried box type high-voltage power transformer equipment according to claim 1 is characterized in that: said a plurality of insulation columns (61) pass through insulation immobilization material (64) sealing and fixing of cast in metallic sheath (62) and the metallic sheath in primary connection pedestal (41) inboard.

3. buried box type high-voltage power transformer equipment according to claim 2 is characterized in that: be cast with between said insulation column (61) and the contact rod (63) insulation immobilization material (64) with contact rod (63) sealing and fixing in insulation column (61).

4. buried box type high-voltage power transformer equipment according to claim 2 is characterized in that: said secondary connection bolt (65) is outer to be provided with metallic sheath (62), and said insulation immobilization material (64) is cast in the metallic sheath (62).

5. buried box type high-voltage power transformer equipment according to claim 1 is characterized in that: said pedestal (4) top is equipped with blind flange (43).

6. according to claim 1 or 2 or 3 or 4 or 5 described buried box type high-voltage power transformer equipments, it is characterized in that: said multi-stage sealed structure also comprises C, three grades of sealings: what said casing was outer realizes waterproof sealing into and out of the line cable (31,32) and the junction of pedestal (4) through flange (81) and seal gasket (82).

7. buried box type high-voltage power transformer equipment according to claim 6 is characterized in that: said insulation immobilization material (64) is mixed by epoxy resin and binding agent.

8. buried box type high-voltage power transformer equipment according to claim 6 is characterized in that: said insulative water-proof material (7) is pitch or silicon rubber.

9. buried box type high-voltage power transformer equipment according to claim 6 is characterized in that: said high-tension transformation equipment (5) comprises batch meter (51) and the vacuum switch (52) that is built in the casing; Be welded with three pedestals (4) on the said casing (1); Be respectively an inlet wire wiring pedestal (411), an outlet wiring pedestal (412) and secondary outlet wiring pedestal (42); Contact rod (63) on the said inlet wire wiring pedestal (411) is electrically connected with vacuum switch (52); Contact rod (63) on the outlet wiring pedestal (412) is electrically connected with the primary connection post (511) of batch meter, and the secondary bolt (65) on the said secondary outlet wiring pedestal (42) is electrically connected with the secondary connection post (512) of batch meter.

10. buried box type high-voltage power transformer equipment according to claim 6 is characterized in that: said high-tension transformation equipment (5) comprises transformer (53), batch meter (51) and the vacuum switch (52) that is built in the casing; Be welded with two pedestals (4) on the said casing (1); Be respectively each one of an inlet wire wiring pedestal (41) and secondary outlet wiring pedestal (42); Contact rod (63) on the said inlet wire wiring pedestal (41) is electrically connected with vacuum switch (52), and the secondary bolt (65) on the said secondary outlet wiring pedestal (42) is electrically connected with the secondary connection post (512) of batch meter and the low tension terminal (531) of transformer respectively.