CN217786297U - Novel multifunctional oil level indicator - Google Patents

Abstract

The utility model relates to a transformer relay protection technical field, and a novel multi-functional oil level gaugember is disclosed, including low oil level mechanism, low oil level electrical junction box, oil level gaugember body, toughened glass observation window, first sealing washer, the normal close tongue tube is normally opened to super low oil level, cylinder magnet, external screw thread end cap, the sealed lid of low oil level mechanism, the normal close tongue tube is normally opened to low oil level, cylinder magnet dead lever, sealing washer between low oil level mechanism and oil level gaugember, low oil level trigger contact separation blade, red buoy of instructing, blue buoy, slip aluminum pipe etc.. This novel multi-functional oil level gaugember installs low oil level normally open normally closed reed pipe and ultralow oil level normally open normally closed reed pipe in the blind hole on low oil level mechanism, and wherein the range that ultralow oil level normally open normally closed reed pipe is less than low oil level normally open normally closed reed pipe is 10-15mm, and two sets of reed pipe axes are parallel with the oil level gaugember body, seal in the inside of low oil level mechanism, have higher IP protection level and anticorrosive level.

Description

Novel multifunctional oil level indicator

Technical Field

The utility model relates to a transformer relay protection technical field especially relates to a novel multi-functional oil level gaugember.

Background

At present, the inside oil level of traditional oily formula totally enclosed transformer box changes as the multi-functional oil level gaugember that electrical signal triggered also calls as the oil level gaugember, and the main points of its oil level protection are: when the oil level in the transformer is lowered due to oil shortage in long-time operation, oil leakage in a box body or gas generated by failure in the transformer, a half of a floater below an oil level gauge is immersed in oil, and a half of the floater floats above a boundary between an oil surface and a liquid surface, the floater drives a red and blue indicating buoy in a window of the oil level gauge to change along with the lifting of the oil surface, when the oil level is lowered to a low oil level setting value, an alarm contact sends out a signal, the situation that parts needing insulating oil cooling and insulation, such as a switch contact, a winding coil, a conducting rod in a sleeve and the like on the transformer, are exposed to a gas environment due to the fact that the oil level continues to fall is avoided, and the normal operation of the transformer is guaranteed.

The conventional pressure relay has the disadvantages that:

1. with the rising of energy price savings such as coal, crude oil and the like, the long-term development of new energy photovoltaic oil-immersed fully-sealed transformers and the increase of labor cost, at present, few-person-attended or unattended photovoltaic transformer substations are increased day by day, and the assembly parts of the transformers are needed to convert the oil level variation into electrical signal quantity for remote output, so that the maintenance and the control are convenient in time;

2. most of oil level gauges used on the existing fully-sealed transformer judge the oil level of the transformer by observing the change of red and blue indicating buoys through an oil level gauge glass window, and the method needs to independently collect the oil level of each transformer, so that the operation efficiency is low, and the danger coefficient is high because the transformers are collected in the running state;

3. the transformer group accessory market provides that the oil level gaugember has 1 electrical contact, and this electrical contact is with aviation plug lead wire, and the secondary wiring needs wiring on original wire to the scene, then twines with waterproof insulating tape, and this kind of IP protection level that is qualified for the next round of competitions is low, and the back of rain or snow wiring department is easily affected with the tide or is intake and cause the false alarm. Therefore, the requirements of high reliability and independent two-way alarm required by the current market cannot be met.

To this end, we propose a new multifunctional oil level gauge.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a novel multi-functional oil level gaugember.

In order to achieve the purpose, the utility model adopts the following technical scheme, a novel multifunctional oil level gauge comprises a low oil level mechanism, a low oil level electrical junction box, an oil level gauge body, a toughened glass observation window, a first sealing ring, an ultralow oil level normally open normally closed dry reed pipe, a cylindrical magnet, an external thread plug, a low oil level mechanism sealing cover, a low oil level normally open normally closed dry reed pipe, a cylindrical magnet fixing rod, a sealing ring between the low oil level mechanism and the oil level gauge, a low oil level trigger contact baffle, a red indication buoy, a blue indication buoy, a sliding aluminum pipe limiting sleeve, an oil level gauge and connecting flange sealing ring, an oil level gauge connecting flange, a transformer box cover, a limiting snap spring on the limiting sleeve, a limiting snap spring under the limiting sleeve, an oil level gauge floater, a wiring terminal and a grounding terminal;

the oil level indicator connecting flange is welded on the transformer tank cover and used for fixing the oil level indicator body, and the oil level indicator is sealed with the connecting flange sealing ring; the toughened glass observation window is arranged at the position of an opening of an inner hole and an outer circle of the oil level gauge body, and a first sealing ring is arranged in a groove of the inner hole of the oil level gauge body and used for sealing; the sliding aluminum pipe limiting sleeve is arranged in the oil level gauge body and is fixed by a limiting clamp spring on the limiting sleeve and a lower limiting clamp spring on the limiting sleeve; the oil level gauge floater is riveted at the lower end of the sliding aluminum pipe, the blue indicating buoy is arranged at the upper end of the sliding aluminum pipe, and the red indicating buoy is inserted above the blue indicating buoy; the low oil level mechanism is arranged at the top of the oil level gauge body, and a sealing ring between the low oil level mechanism and the oil level gauge is arranged in a rubber ring groove on the low oil level mechanism and used for sealing; the low oil level trigger contact blocking piece is fixed at the lower end of the cylindrical magnet fixing rod through a nut, and the lower surface of the low oil level trigger contact blocking piece is in contact with the upper surface of the red indicating buoy; the low oil level normally open and normally closed reed pipe and the ultralow oil level normally open and normally closed reed pipe are arranged in a blind hole on the low oil level mechanism, wherein the range of the ultralow oil level normally open and normally closed reed pipe lower than the low oil level normally open and normally closed reed pipe is 10-15mm; the low oil level electric junction box is installed on the side face of the low oil level mechanism, a wiring terminal and a grounding terminal are installed in the low oil level electric junction box, wherein a wire connected with the low oil level normally open normally closed reed pipe and the ultralow oil level normally open normally closed reed pipe is welded on the lower side of the wiring terminal, a compression screw on the wiring terminal is used for crimping an external lead, and a sealing cover of the low oil level mechanism is installed on the top of the low oil level mechanism and used for water proofing and dust proofing. The utility model discloses realize that accurate response transformer box oil level is low to report to the police and ultralow oil level reports to the police, and this product has 360 observation windows, and convenient to use reduces transformer operation risk, improves the managerial efficiency.

Further, the low oil level mechanism is installed at the top of the oil level gauge body, and a sealing ring between the low oil level mechanism and the oil level gauge is installed in a rubber ring groove in the low oil level mechanism and used for sealing.

Further, low oil level normally open normally closed tongue tube and ultralow oil level normally open normally closed tongue tube are installed in the blind hole on low oil level mechanism, and wherein the range that ultralow oil level normally open normally closed tongue tube is less than low oil level normally open normally closed tongue tube is 10-15mm, and two sets of tongue tube axes are parallel with the oil level gaugember body, seal in the inside of low oil level mechanism, have higher IP protection level and protection level, because low oil level mechanism is pure metal casing, have higher electromagnetic compatibility to electrical signal.

Further, the cylindrical magnet is installed on the cylindrical magnet fixing rod and inserted into a central hole of the low oil level mechanism, when the oil level inside the transformer is changed by the liquid level through the oil level gauge floater to float up and down, the up-and-down floating is triggered to contact the blocking piece through the sliding aluminum tube, the blue indication buoy, the red indication buoy and the low oil level, then the cylindrical magnet is driven to move up and down on the cylindrical magnet fixing rod to trigger the corresponding low oil level normally open normally closed reed tube or the ultralow oil level normally open normally closed reed tube, and an alarm signal is sent out, so that the insulation performance of devices inside the transformer is protected, and the operation safety of the transformer is ensured.

Further, a low oil level electrical junction box for electrical wiring is installed in low oil level mechanism side, and the built-in binding post and the ground terminal that is equipped with of low oil level electrical junction box, wherein the welding has the wire of being connected with low oil level normally open normally closed tongue tube and ultralow oil level normally open normally closed tongue tube at the binding post downside, and housing screw on the binding post is used for the external lead wire of crimping, and the outside of low oil level electrical junction box is equipped with the sealed protective cover of taking the rubber ring again for it is waterproof, dustproof.

Advantageous effects

The utility model provides a novel multi-functional oil level gaugember. The method has the following beneficial effects:

(1) This novel multi-functional oil level gaugember installs in the blind hole on low oil level mechanism and is equipped with low oil level normally open normally closed tongue tube and ultralow oil level normally open normally closed tongue tube, and wherein the ultralow oil level normally open normally closed tongue tube is less than the scope of low oil level normally open normally closed tongue tube and is 10-15mm, and two sets of tongue tube axes are parallel with the oil level gaugember body, seal in the inside of low oil level mechanism, have higher IP protection level and anticorrosive level.

(2) This novel multi-functional oil level gaugember, low oil level electrical installation are in low oil level mechanism side, and the built-in binding post and the ground terminal that is equipped with of low oil level electrical junction box, wherein the welding has the wire of normally opening normally closed tongue tube and the normally open normally closed tongue tube connection of ultralow oil level with low oil level at the binding post downside, and housing screw on the binding post is used for the external lead wire of crimping, is equipped with in the outside of low oil level electrical junction box and takes the sealed protective cover of rubber ring for it is waterproof, dustproof.

Drawings

The structures, proportions, sizes, and other elements shown in the specification are for the understanding of the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the claims, but rather by the claims.

FIG. 1 is a schematic view of a terminal;

FIG. 2 is a perspective view of the low oil level mechanism;

FIG. 3 is a side view of the low oil level mechanism;

fig. 4 is a sectional view of the present invention.

Illustration of the drawings:

1. a low oil level mechanism; 2. a low oil level electrical junction box; 3. an oil level gauge body; 4. a toughened glass observation window; 5. a first seal ring; 6. a normally open and normally closed reed switch at an ultra-low oil level; 7. a cylindrical magnet; 8. an external thread plug; 9. a low oil level mechanism sealing cover; 10. a low oil level normally open normally closed reed switch; 11. a cylindrical magnet fixing rod; 12. a sealing ring between the low oil level mechanism and the oil level gauge; 13. a low oil level triggers a contact catch; 14. Red indicating float; 15. a blue indicating float; 16. sliding an aluminum tube; 17. sliding an aluminum pipe limiting sleeve; 18. the oil level gauge is connected with a flange sealing ring; 19. an oil level gauge connecting flange; 20. a transformer tank cover; 21. A limiting clamp spring is arranged on the limiting sleeve; 22. the lower limiting clamp spring of the limiting sleeve; 23. an oil level gauge float; 24. a wiring terminal; 25. and a ground terminal.

Detailed Description

A novel multifunctional oil level indicator is shown in figures 1-4 and comprises a low oil level mechanism 1, a low oil level electric junction box 2, an oil level indicator body 3, a toughened glass observation window 4, a first sealing ring 5, an ultralow oil level normally-open normally-closed reed pipe 6, a cylindrical magnet 7, an external thread plug 8, a low oil level mechanism sealing cover 9, a low oil level normally-open normally-closed reed pipe 10, a cylindrical magnet fixing rod 11, a sealing ring 12 between the low oil level mechanism and the oil level indicator, a low oil level trigger contact blocking sheet 13, a red indication buoy 14, a blue indication buoy 15, a sliding aluminum pipe 16, a sliding aluminum pipe limiting sleeve 17, an oil level indicator and connecting flange sealing ring 18, an oil level indicator connecting flange 19, a transformer box cover 20, a limiting sleeve upper limiting clamp spring 21, a limiting sleeve lower limiting clamp spring 22, an oil level indicator float 23, a connecting terminal 24 and an earthing terminal 25.

The oil level indicator connecting flange 19 is welded on the transformer tank cover 20 and used for fixing the oil level indicator body 3, and the oil level indicator is sealed with the connecting flange sealing ring 18; the toughened glass observation window 4 is arranged at the position of an opening of an inner hole and an outer circle of the oil level gauge body 3, and a first sealing ring 5 is arranged in a groove of the inner hole of the oil level gauge body 3 and used for sealing; the sliding aluminum pipe limiting sleeve 17 is arranged inside the oil level gauge body 3 and is fixed by a limiting clamp spring 21 on the limiting sleeve and a limiting clamp spring 22 on the limiting sleeve; the oil level gauge floater 23 is riveted at the lower end of the sliding aluminum pipe 16, the blue indicating buoy 15 is arranged at the upper end of the sliding aluminum pipe 16, and the red indicating buoy 14 is inserted above the blue indicating buoy 15; the low oil level mechanism 1 is arranged at the top of the oil level gauge body 3, and a sealing ring 12 between the low oil level mechanism and the oil level gauge is arranged in a rubber ring groove on the low oil level mechanism 1 and used for sealing; the cylindrical magnet 7 is installed on the cylindrical magnet fixing rod 11 and inserted into a central hole of the low oil level mechanism 1, the magnet end faces upwards, an external thread plug 8 is screwed into the upper end of the central hole of the low oil level mechanism 1 and sealed, the low oil level triggering contact blocking piece 13 is fixed at the lower end of the cylindrical magnet fixing rod 11 through a nut, and the lower surface of the low oil level triggering contact blocking piece 13 is in contact with the upper surface of the red indicating buoy 14; the low oil level normally open and normally closed reed pipe 10 and the ultralow oil level normally open and normally closed reed pipe 6 are arranged in a blind hole on the low oil level mechanism 1, wherein the range of the ultralow oil level normally open and normally closed reed pipe 6 which is lower than the low oil level normally open and normally closed reed pipe is 10-15mm; low oil level electrical junction box 2 installs in low oil level mechanism 1 side, and the built-in binding post 24 and the ground terminal 25 of being equipped with of low oil level electrical junction box 2, wherein the welding has the wire of being connected with low oil level normally open normally closed tongue tube 10 and super low oil level normally open normally closed tongue tube 6 at binding post 24 downside, and the housing screw on binding post 24 is used for the external lead wire of crimping, and the sealed lid 9 of low oil level mechanism is installed at the top of low oil level mechanism 1 for it is waterproof, dustproof. The utility model discloses realize that accurate response transformer box oil level hangs down the oil level and reports to the police and ultralow oil level, and this product has 360 observation windows, and convenient to use reduces transformer operation risk, improves management efficiency.

The low oil level mechanism 1 is arranged at the top of the oil level gauge body 3, and the rubber ring groove on the low oil level mechanism 1 is provided with a sealing ring 12 between the low oil level mechanism and the oil level gauge for sealing.

Normally closed tongue tube 10 is normally opened to low oil level and normally closed tongue tube 6 is installed in the blind hole on low oil level mechanism 1 with the super low oil level, wherein the scope that super low oil level normally opened normally closed tongue tube 6 is less than low oil level normally opened normally closed tongue tube 10 is 10-15mm, two sets of tongue tube axes are parallel with oil level gaugember body 3, seal in the inside of low oil level mechanism 1, higher IP protection level and protection level have, because low oil level mechanism 1 is pure metal casing, to having higher electromagnetic compatibility of electrical signal.

The cylindrical magnet 7 is installed on the cylindrical magnet fixing rod 11 and is inserted into a central hole of the low oil level mechanism 1, when the oil level inside the transformer is changed by the liquid level of the oil level gauge floater 23 to float up and down, the up and down floating is performed through the sliding aluminum pipe 16, the blue indication buoy 15, the red indication buoy 14 and the low oil level trigger contact blocking piece 13, then the cylindrical magnet 7 is driven by the cylindrical magnet fixing rod 11 to move up and down, the corresponding low oil level normally open normally closed reed pipe 10 is triggered, the ultra-low oil level normally open normally closed reed pipe 6 is triggered, and an alarm signal is sent out, so that the insulating performance of protecting devices inside the transformer is achieved, and the operation safety of the transformer is guaranteed.

A low oil level electrical junction box 2 for electrical wiring usefulness is installed in low oil level mechanism 1 side, and the built-in binding post 24 and the ground terminal 25 of being equipped with of low oil level electrical junction box 2, wherein the welding has the wire of being connected with low oil level normally open normally closed tongue tube 10 and ultralow oil level normally open normally closed tongue tube 6 in binding post 24 downside, and the housing screw on binding post 24 is used for the external lead wire of crimping, and the outside of low oil level electrical junction box 2 is equipped with the protective cover of taking the rubber ring to seal again for waterproof, dustproof.

The utility model discloses a theory of operation: the oil level indicator connecting flange 19 is welded on the transformer tank cover 20 and used for fixing the oil level indicator body 3, and the oil level indicator is sealed with the connecting flange sealing ring 18; the toughened glass observation window 4 is arranged at the position of an opening of an inner hole and an outer circle of the oil level gauge body 3, and a first sealing ring 5 is arranged in a groove of the inner hole of the oil level gauge body 3 and used for sealing; the oil level gauge floater 23 is riveted at the lower end of the sliding aluminum pipe 16, the sliding aluminum pipe 16 is inserted into a central hole of the limiting sleeve 17 of the sliding aluminum pipe after riveting is finished, the blue indicating buoy 15 is installed at the upper end of the sliding aluminum pipe 16, the red indicating buoy 14 is inserted above the blue indicating buoy 15, and the assembly of the process is finished and then installed inside the oil level gauge body 3 and is fixed by the limiting clamp spring 21 on the limiting sleeve and the lower limiting clamp spring 22 on the limiting sleeve; the low-oil-level normally-open normally-closed reed pipe 10 and the ultra-low-oil-level normally-open normally-closed reed pipe 6 are arranged in a blind hole in the low-oil-level mechanism 1, wherein the range of the ultra-low-oil-level normally-open normally-closed reed pipe 6 which is lower than the low-oil-level normally-open normally-closed reed pipe 10 is 10-15mm; the cylindrical magnet 7 is arranged on the cylindrical magnet fixing rod 11 and is inserted into a central hole of the low oil level mechanism 1, the magnet end faces upwards, an external thread plug 8 is screwed into the upper end of the central hole of the low oil level mechanism 1 and is sealed, and the low oil level trigger contact blocking piece 13 is fixed at the lower end of the cylindrical magnet fixing rod 11 through a nut; the low oil level electric junction box 2 is installed on the side face of the low oil level mechanism 1, a wiring terminal 24 and a grounding terminal 25 are installed in the low oil level electric junction box 2, wherein the lower side of the wiring terminal 24 is used for welding a wire connected with the low oil level normally open normally closed reed pipe 10 and the ultralow oil level normally open normally closed reed pipe 6, a compression screw on the wiring terminal 24 is used for crimping an external lead, and a low oil level mechanism sealing cover 9 is installed on the top of the low oil level mechanism 1 and used for preventing water and dust; the low oil level mechanism 1 is integrally assembled and then screwed into the top of the oil level gauge body 3, a rubber ring groove on the low oil level mechanism 1 is provided with a sealing ring 12 between the low oil level mechanism and the oil level gauge for sealing, and the lower surface of a low oil level trigger contact separation blade 13 is in contact with the upper surface of a red indicating buoy 14 after being screwed down. Inside oil level of transformer receives the liquid level change fluctuation by oil level gaugember float 23, and this fluctuation is through slip aluminum pipe 16, blue instruction buoy 15, red instruction buoy 14, low oil level trigger contact separation blade 13, again by drive cylinder magnet 7 up-and-down motion on the cylinder magnet dead lever 11, triggers corresponding low oil level normally open normally closed tongue tube 10 or ultralow oil level normally open normally closed tongue tube 6, sends alarm signal, the utility model discloses realize that the low oil level of oil level is reported to the police and the ultralow oil level is reported to the police in the accurate response transformer box, and this product has 360 observation windows, convenient to use reduces transformer operation risk, improves the managerial efficiency.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (3)

1. The utility model provides a novel multi-functional oil level gaugember, including low oil level mechanism (1), low oil level electrical junction box (2), oil level gaugember body (3), toughened glass observation window (4), first sealing washer (5), ultralow oil level normally opens normally closed tongue tube (6), cylindrical magnet (7), external screw thread end cap (8), low oil level mechanism sealed lid (9), low oil level normally opens normally closed tongue tube (10), cylindrical magnet dead lever (11), sealing washer (12) between low oil level mechanism and oil level gaugember, low oil level trigger contact separation blade (13), red buoy (14) of instructing, blue buoy (15) of instructing, slip aluminum pipe (16), slip aluminum pipe stop collar (17), oil level gaugember and flange sealing washer (18), oil level gaugember flange (19), transformer tank lid (20), stop collar on stop collar (21), stop collar lower stop collar jump ring (22), oil level gaugember float (23), binding post (24), earth terminal (25), its characterized in that: the oil level gauge connecting flange (19) is welded on a transformer tank cover (20) and used for fixing the oil level gauge body (3), and the oil level gauge is sealed with the connecting flange sealing ring (18);

the toughened glass observation window (4) is arranged at the position of an opening of an inner hole and an outer circle of the oil level gauge body (3), and a first sealing ring (5) is arranged in a groove of the inner hole of the oil level gauge body (3);

the sliding aluminum pipe limiting sleeve (17) is installed inside the oil level gauge body (3) and is fixed by a limiting clamp spring (21) on the limiting sleeve and a limiting clamp spring (22) on the limiting sleeve;

the oil level gauge floater (23) is riveted at the lower end of the sliding aluminum pipe (16), the blue indicating buoy (15) is arranged at the upper end of the sliding aluminum pipe (16), and the red indicating buoy (14) is inserted above the blue indicating buoy (15);

the low oil level mechanism (1) is arranged at the top of the oil level gauge body (3), and a sealing ring (12) between the low oil level mechanism and the oil level gauge is arranged in a rubber ring groove on the low oil level mechanism (1);

the low oil level triggering contact blocking piece (13) is fixed at the lower end of the cylindrical magnet fixing rod (11) through a nut, and the lower surface of the low oil level triggering contact blocking piece (13) is in contact with the upper surface of a red indicating buoy (14);

the low-oil-level normally-open normally-closed reed pipe (10) and the ultralow-oil-level normally-open normally-closed reed pipe (6) are arranged in a blind hole in the low-oil-level mechanism (1), wherein the range of the ultralow-oil-level normally-open normally-closed reed pipe (6) lower than the low-oil-level normally-open normally-closed reed pipe (10) is 10-15mm;

the low oil level electric junction box (2) is installed on the side face of the low oil level mechanism (1), a wiring terminal (24) and a grounding terminal (25) are installed in the low oil level electric junction box (2), wherein a wire connected with a low oil level normally-open normally-closed reed pipe (10) and an ultra-low oil level normally-open normally-closed reed pipe (6) is welded on the lower side of the wiring terminal (24), a compression screw on the wiring terminal (24) is used for crimping an external lead, and a low oil level mechanism sealing cover (9) is installed on the top of the low oil level mechanism (1).

2. The new multifunctional oil level indicator according to claim 1, characterized in that: two groups of reed pipe axes of the low-oil-level normally-open normally-closed reed pipe (10) and the ultralow-oil-level normally-open normally-closed reed pipe (6) are parallel to the oil level gauge body (3) and are sealed inside the low-oil-level mechanism (1), and the low-oil-level mechanism (1) is a pure metal shell.

3. The new multifunctional oil level indicator according to claim 1, characterized in that: and a protective cover with a rubber ring seal is arranged on the outer side of the low-oil-level electrical junction box (2).

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