CN210073567U

CN210073567U - Dry-type power transformer for building

Info

Publication number: CN210073567U
Application number: CN201921093660.3U
Authority: CN
Inventors: 戚子轩; 何汉方; 梁东
Original assignee: Guangdong Keyuan Electric Co Ltd
Current assignee: Guangdong Keyuan Electric Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-02-14
Anticipated expiration: 2029-07-12

Abstract

The utility model relates to a building trade power equipment technical field, and a dry-type power transformer for building is disclosed, electrostatic precipitator mechanism has been installed to movable guide's outside, electrostatic precipitator mechanism is including the guide rail pole of vertically installing, the outside electricity of bushing plate in the stereoplasm rubber is connected with earth conductor, earth conductor's middle part is opened circuit and is set up, and break some both ends and all pass through the fixed electrode touch multitouch of having installed of support, automatically controlled execution subassembly that surges has transversely been installed to the lower part of rubber slab, under automatically controlled execution subassembly extension state that surges, the electrical contact between conducting block and two electrode touch multitouches, dust removal air-blast motor has still been installed in the upper end outside slope of rubber slab, the slider is still installed to the bottom of guide rail pole, movable guide's. Adopt electrostatic absorption and dust removal blower motor complex dust to get rid of the structure, the dust collection ability is stronger, and can control convenient and fast through automatically controlled mode to electrostatic absorption process.

Description

Dry-type power transformer for building

Technical Field

The utility model relates to a building trade power equipment technical field specifically is a dry-type power transformer for building.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, airports, wharf CNC machines and other places, and simply, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil.

The cooling method is classified into natural air cooling (AN) and forced air cooling (AF). During natural air cooling, the transformer can continuously operate for a long time under the rated capacity. When forced air cooling is carried out, the output capacity of the transformer can be improved by 50 percent. The device is suitable for intermittent overload operation or emergency accident overload operation; because the load loss and the impedance voltage amplification are large during overload and the device is in a non-economic operation state, the device is not required to be in continuous overload operation for a long time.

A lot of dust easily adheres to the surface of a transformer used on a building site, the transformer is not easy to remove, the heat dissipation and dust removal capacity of a common dry-type distribution transformer for a building is not strong, the performance of the transformer is easily affected, and the working requirement of power equipment for the building cannot be met.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a be not enough to prior art, the utility model provides a dry-type power transformer for building possesses advantages such as high-efficient heat dissipation, high-efficient dust removal, has solved the easy adhesion a lot of dusts in the transformer surface of current use on the construction site, is difficult for cleaing away, and common dry-type power transformer for building's heat dissipation and dust removal ability are not strong, lead to the transformer performance to receive the influence easily, can not satisfy the problem of power equipment's for building operational requirement.

(II) technical scheme

For the purpose of realizing above-mentioned high-efficient heat dissipation, high-efficient dust removal, the utility model provides a following technical scheme: a dry-type power transformer for buildings comprises a coil insulation outer cover, wherein a transformer core is longitudinally inserted in the middle position inside the coil insulation outer cover, a low-voltage winding coil is wound outside the transformer core, a high-voltage winding coil is wound outside the low-voltage winding coil through a limiting frame structure, a ventilation gap is reserved between the low-voltage winding coil and the high-voltage winding coil, a limiting clamp is transversely arranged at the top end of the coil insulation outer cover, a high-voltage wiring terminal is further arranged on the front side surface of the limiting clamp, high-voltage connecting rods are further crossly arranged outside the coil insulation outer cover, two ends of each high-voltage connecting rod are respectively in electrical contact with the high-voltage wiring terminal and the high-voltage winding coil, a supporting bottom plate is further arranged at the bottom end of the coil insulation outer cover, and heat dissipation air blowers are respectively, the air outlet end of the heat dissipation air blower is communicated and connected with the bottom end of the ventilation gap;

the utility model discloses a pneumatic electrostatic precipitator, including supporting baseplate, electric control hydraulic actuator, supporting baseplate, nylon brush hair, rubber lining board, conducting block, and electric control hydraulic actuator's top is installed to the conducting block, and under the electric control hydraulic actuator's extension state, the electric control hydraulic actuator's electrical contact between conducting block and two electrode contact blocks, the outer side of the upper end part of the rubber plate is obliquely provided with a dust removal blower motor, the bottom end of the guide rail rod is further provided with a sliding block, and the sliding block is sleeved outside the movable guide rail.

Preferably, the whole coil insulation outer cover is of a barrel shape, the number of the coil insulation outer cover is three, and the periphery of the coil insulation outer cover is hooped with an anti-toppling limiting support.

Preferably, the top end of the ventilation gap is provided with an exhaust pressure relief valve, and the inner wall of the ventilation gap is lined with an aluminum heat-conducting plate and is polished smoothly.

Preferably, the heat dissipation air blower and the electrical equipment inside the electrostatic dust removal mechanism are powered by respective independent power supplies.

Preferably, the number of the electrostatic precipitation mechanisms is two, and the two electrostatic precipitation mechanisms are respectively arranged on the front side and the rear side of the coil insulation outer cover.

Preferably, a through hole for the moving guide rail to pass through is formed in the sliding block, and the cross sections of the through hole in the sliding block and the moving guide rail are rectangular.

(III) advantageous effects

Compared with the prior art, the utility model provides a dry-type power transformer for building possesses following beneficial effect:

1. according to the dry-type power transformer for the building, the coil insulation outer cover is adopted to carry out sealing, wrapping and limiting on the electric core and the windings of the transformer, the electric core and the windings of the transformer are not in direct contact with the atmosphere, the dry-type power transformer has an explosion-proof effect, the reserved ventilation gap is matched with an external heat dissipation blast structure, efficient heat dissipation is carried out on the installation gap between the windings, and compared with oil cooling, the dry-type power transformer for the building is higher in safety factor and higher in heat;

2. this dry-type power transformer for building adopts electrostatic absorption and dust removal blower motor complex dust to get rid of the structure, and the dust collection ability is stronger, and can control the electrostatic absorption process through automatically controlled mode, and convenient and fast is efficient, and mobility is strong, has satisfied the needs that use.

Drawings

Fig. 1 is a schematic structural view of a dry power transformer for construction according to the present invention;

fig. 2 is the utility model relates to a dry-type power transformer's for building electrostatic precipitator mechanism schematic diagram.

In the figure: 1 coil insulation dustcoat, 2 transformer electric cores, 3 low voltage winding coils, 4 high voltage winding coils, 5 ventilation gaps, 6 spacing folder, 7 high-voltage wiring terminal, 8 high-voltage connecting rod, 9 supporting baseplate, 10 heat dissipation air-blowing fan, 11 movable guide rail, 12 electrostatic precipitation mechanism, 121 rubber plate, 122 guide rail rod, 123 electric movable seat, 124 nylon brush hair, 125 hard rubber lining plate, 126 earth conductor, 127 electrode touch block, 128 electric control hydraulic actuator assembly, 129 conducting block, 13 dust removal air-blowing motor, 14 slider.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution, a dry power transformer for building, including a coil insulation housing 1, a transformer core 2, a low voltage winding coil 3, a high voltage winding coil 4, a ventilation gap 5, a spacing clamp 6, a high voltage terminal 7, a high voltage connecting rod 8, a supporting base plate 9, a heat dissipation blower 10, a movable guide rail 11, an electrostatic dust removing mechanism 12, a rubber plate 121, a guide rail rod 122, an electric movable seat 123, nylon bristles 124, a hard rubber lining plate 125, a grounding wire 126, an electrode contact block 127, an electric control hydraulic actuator 128, a conductive block 129, a dust removal blower motor 13, a slider 14, a transformer core 2 longitudinally inserted in the middle position of the coil insulation housing 1, a low voltage winding coil 3 wound outside the transformer core 2, a high voltage winding coil 4 wound outside the low voltage winding coil 3 by a spacing structure, a ventilation gap 5 is reserved between the low-voltage winding coil 3 and the high-voltage winding coil 4, two sides of the ventilation gap 5 are not in direct contact with the windings, a sealing partition plate made of aluminum is additionally arranged between the ventilation gap 5 and the windings, a limiting clamp 6 is transversely arranged at the top end of the coil insulation housing 1, a high-voltage wiring terminal 7 is further arranged on the front side face of the limiting clamp 6, a high-voltage connecting rod 8 is further arranged outside the coil insulation housing 1 in a crossed mode, two ends of the high-voltage connecting rod 8 are respectively in electrical contact with the high-voltage wiring terminal 7 and the high-voltage winding coil 4, a supporting bottom plate 9 is further arranged at the bottom end of the coil insulation housing 1, heat dissipation air blowers 10 are arranged on two sides of the upper surface of the supporting bottom plate 9, and; rubber plate 121, rail rod 122, electric moving seat 123, nylon brush 124, hard rubber lining plate 125, grounding wire 126, electrode contact block 127, electric control hydraulic actuator 128, conductive block 129 and dust removal blower motor 13 sliding block 14.

The outer side of the supporting bottom plate 9 is also provided with a movable guide rail 11 through a bracket in the circumferential direction, the outer side of the movable guide rail 11 is provided with an electrostatic dust removal mechanism 12, the electrostatic dust removal mechanism 12 comprises a guide rail rod 122 which is longitudinally arranged, a rubber plate 121 is longitudinally arranged on the front side of the guide rail rod 122, an electric movable seat 123 is sleeved on the outer side of the guide rail rod 122, nylon bristles 124 are arranged on the surface of the electric movable seat 123, a hard rubber lining plate 125 is inserted in the rubber plate 121, the outer part of the hard rubber lining plate 125 is electrically connected with a grounding wire 126, the length of the grounding wire 126 is not less than 15 m and is enough for work, the middle part of the grounding wire 126 is in an open circuit arrangement, two ends of a disconnected point are fixedly provided with electrode contact blocks 127 through the bracket, the lower part of the rubber plate 121 is transversely provided with an electric control hydraulic actuator 128, the top end of, the conductive block 129 is electrically contacted with the two electrode contact blocks 127, in the electrostatic dust removal adsorption working state, the electric moving seat 123 is firstly controlled to be opened, so that the electric moving seat 123 performs vertical reciprocating motion outside the guide rail rod 122, or the vertical reciprocating motion of the electric moving seat 123 is manually realized, as the nylon bristles 124 on the surface of the electric moving seat 123 are contacted with the rubber plate 121, the surface of the rubber plate 121 generates adsorption static electricity after friction, then the electrostatic dust removal mechanism 12 is pushed along the circumferential direction of the coil insulation outer cover 1, so that dust on the surface of the coil insulation outer cover 1 can be electrostatically adsorbed, at the moment, the electric control hydraulic actuator 128 is in a contraction state, namely the two electrode contact blocks 127 are disconnected, after the adsorption and dust removal work is finished, the power supply of the electric moving seat 123 is closed, so that the friction is stopped, namely the static electricity is stopped to generate, the electric control hydraulic actuator 128 is electrified to extend out, so that the conductive block 129 at the, the grounding wire 126 can be electrified, the hard rubber lining plate 125 is grounded, and the hard rubber lining plate 125 is in electrical contact with the rubber plate 121, so that the static electricity on the surface of the rubber plate 121 can be eliminated due to grounding, the adsorbed dust falls to the ground, an operator can sweep the dust, the dust can be adsorbed and cleared by conveniently controlling the static electricity, compared with the traditional suction sweeper, the suction sweeper has strong adsorption capacity, the static adsorption can clean the corners of the outer wall of the transformer, the dust directly falls to the ground after cleaning, the dust can be conveniently stored, a remote control device can be additionally arranged to realize automatic electrified adsorption dust removal, the operation is simple, the working efficiency is higher, the dust removal blast motor 13 is obliquely arranged on the outer side of the upper end part of the rubber plate 121, the air outlet of the dust removal blast motor 13 faces to the outer surface of the coil insulation housing 1, and the dust removal effect of auxiliary blowing is achieved, the bottom end of the guide rail rod 122 is further provided with a slide block 14, and the slide block 14 is sleeved outside the moving guide rail 11.

The whole of coil insulation dustcoat 1 is the cylindric, and quantity is three groups, and the periphery hoop is equipped with prevents the spacing support that topples over, and operating structure is more stable.

The top end of the ventilation gap 5 is provided with an exhaust pressure relief valve for exhausting air flow, the inner wall of the ventilation gap 5 is lined with an aluminum heat conducting plate which is polished smoothly, the aluminum heat conducting plate has the effects of efficient heat transfer and heat dissipation, and meanwhile, a winding can be sealed to avoid contact with the atmosphere.

The electrical equipment in the heat dissipation air blower 10 and the electrostatic dust removal mechanism 12 are powered by respective independent power supplies.

The electrostatic dust removing mechanisms 12 are arranged on the front side and the rear side of the coil insulation outer cover 1 respectively, and the circumferential electrostatic adsorption dust removing operation of the transformer can be realized.

A through hole for the moving guide rail 11 to pass through is formed in the sliding block 14, and the cross sections of the through hole in the sliding block 14 and the moving guide rail 11 are both rectangular, so that the sliding block 14 is prevented from overturning outside the moving guide rail 11.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dry-type power transformer for building, includes coil insulation dustcoat (1), its characterized in that: a transformer electric core (2) is longitudinally inserted in the middle of the inner part of the coil insulation outer cover (1), a low-voltage winding coil (3) is wound on the outer part of the transformer electric core (2), a high-voltage winding coil (4) is wound on the outer part of the low-voltage winding coil (3) through a limiting frame structure, an air gap (5) is reserved between the low-voltage winding coil (3) and the high-voltage winding coil (4), a limiting clamping piece (6) is transversely installed at the top end of the coil insulation outer cover (1), a high-voltage wiring terminal (7) is further installed on the front side face of the limiting clamping piece (6), a high-voltage connecting rod (8) is further crossly installed on the outer part of the coil insulation outer cover (1), two ends of the high-voltage connecting rod (8) are respectively in electrical contact with the high-voltage wiring terminal (7) and the high-voltage winding coil (4), a supporting bottom plate, the two sides of the upper surface of the supporting bottom plate (9) are respectively provided with a heat dissipation air blower (10), and the air outlet end of the heat dissipation air blower (10) is communicated and connected with the bottom end of the ventilation gap (5);

the utility model discloses a pneumatic dust collector, including supporting baseplate (9), the outside of supporting baseplate (9) still has installed removal guide rail (11) through support circumference, electrostatic precipitation mechanism (12) have been installed to the outside of removal guide rail (11), electrostatic precipitation mechanism (12) are including vertical guide rail pole (122) of installing, rubber slab (121) have vertically been placed to the front side of guide rail pole (122), electric movable seat (123) have been cup jointed to the outside of guide rail pole (122), nylon brush hair (124) have been installed on the surface of electric movable seat (123), bushing plate (125) in the stereoplasm rubber is inserted to the inside of rubber slab (121), the outside electricity of bushing plate (125) is connected with earth conductor (126), the middle part of earth conductor (126) is opened circuit and is set up, and break some both ends all have installed electrode touch multitouch (127) through the support is fixed, the automatically controlled hydraulic actuator subassembly (128) has transversely been installed to the, conducting block (129) are installed on the top end of automatically controlled hydraulic actuator (128), and under the electrically controlled hydraulic actuator (128) extension state, electrical contact between conducting block (129) and two electrode touch multitouch (127), dust removal blower motor (13) have still been installed in the upper end outside slope of rubber slab (121), slider (14) have still been installed to the bottom of guide rail pole (122), the outside of moving guide rail (11) is located to slider (14) cover.

2. A dry-type power transformer for building use as claimed in claim 1, wherein: the coil insulation outer cover (1) is cylindrical in whole, the number of the coil insulation outer cover is three, and the periphery of the coil insulation outer cover is hooped with an anti-toppling limiting support.

3. A dry-type power transformer for building use as claimed in claim 1, wherein: an exhaust pressure relief valve is arranged at the top end of the ventilation gap (5), and an aluminum heat conducting plate is lined on the inner wall of the ventilation gap (5) and is polished smoothly.

4. A dry-type power transformer for building use as claimed in claim 1, wherein: and electrical equipment inside the heat dissipation air blowing fan (10) and the electrostatic dust removal mechanism (12) are powered by respective independent power supplies.

5. A dry-type power transformer for building use as claimed in claim 1, wherein: the number of the electrostatic precipitation mechanisms (12) is two, and the two electrostatic precipitation mechanisms are respectively arranged on the front side and the rear side of the coil insulation outer cover (1).

6. A dry-type power transformer for building use as claimed in claim 1, wherein: a through hole for the moving guide rail (11) to pass through is formed in the sliding block (14), and the cross sections of the through hole in the sliding block (14) and the moving guide rail (11) are rectangular.