CN111174058A

CN111174058A - Underground long-distance power supply device and using method thereof

Info

Publication number: CN111174058A
Application number: CN202010033912.4A
Authority: CN
Inventors: 邢彦民; 范智海; 段振利; 何晓军; 杨嘉栋
Original assignee: Shaanxi Shaanxi Coal Tongchuan Mining Co ltd
Current assignee: Shaanxi Shaanxi Coal Tongchuan Mining Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-05-19

Abstract

The invention discloses an underground long-distance power supply device which comprises a base and a support frame, wherein universal wheels are fixed at the bottom of the support frame, the base is fixed at the top of the support frame, an inverter box and a control box are sequentially installed at the top of the base from left to right, and a high-frequency transformer is installed at one side, located on the inverter box and the control box, of the top of the base; the invention also discloses a using method of the underground long-distance power supply device; the invention has the beneficial effects that: the support component designed on the support frame drives the abutting plate to advance through the screw rod, so that the abutting plate abuts against the bottom of the main loop box, the main loop box is supported, and the load borne by the main loop box is reduced; through link up the through-hole of seting up relative distribution on the surface at the contravariant case, and the front surface of contravariant case is located the outside of through-hole and sets up dustproof mechanism, helps better utilization protection network separation dust to the heat dissipation, also be convenient for when protection network surface deposition, take off the protection network and clean.

Description

Underground long-distance power supply device and using method thereof

Technical Field

The invention belongs to the technical field of power supply devices, and particularly relates to an underground long-distance power supply device and a using method of the power supply device.

Background

With the continuous development of coal mine production technology, high-power coal mining units and transportation equipment are continuously applied, the load of an underground power supply system is greatly increased, and meanwhile, the distance of a mine power supply line is increased and the line voltage loss is increased along with the development and extension of a mine to a deep coal seam.

The high-frequency high-voltage power supply control device is continuously updated and improved for years and is developed into an EHC-II type second generation composite high-frequency high-voltage power supply control device; the EHC-II high-frequency high-voltage power supply control device is developed by adopting a high-efficiency high-frequency soft switching inversion technology, a high-efficiency high-frequency high-voltage transformer technology, an embedded control technology and an energy intelligent optimization software technology and combining a high-efficiency thermal system design technology, is structurally innovative and adopts a circulating air cooling technology and modular full-sealing treatment, and has the advantages of advanced technology, compact structure and high stability; the working mode of the high-frequency high-voltage power supply control device is high-frequency inversion-high-voltage rectification.

The existing underground long-distance power supply device has the following defects when in use:

1. the inverter box has defects in dust prevention;

2. when the main loop box and the base are fixed, the load borne by the main loop box is reduced.

Disclosure of Invention

The invention aims to provide an underground long-distance power supply device and a using method thereof, aiming at solving the defects of the inversion box in the aspect of dust prevention in the background technology; when the main loop box and the base are fixed, the problem that the load borne by the main loop box is insufficient is solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an underground long distance power supply unit, includes base and support frame, the bottom of support frame is fixed with the universal wheel, the top of support frame is fixed with the base, contravariant case and control box are installed from a left side to the right side in proper order to the top of base, the top of base is located one side of contravariant case and control box and installs high frequency transformer, the top of contravariant case is fixed with a plurality of interval distribution's resonance capacitance, the major loop case is installed to the bottom of base, still be provided with supporting component on the support frame, this supporting component includes supporting shoe, screw rod, support board, bearing and nut, the surface of supporting shoe link up and has seted up the perforation, should perforate the internal fixation have with the nut that the screw rod screw thread closes soon, the one end of screw rod is fixed with the support board that can offset with the major loop case, and support board and the junction of screw rod and.

As a preferable technical scheme of the invention, the supporting block is of an inverted U-shaped structure, and the other end of the screw rod is fixed with a hand wheel.

As a preferable technical solution of the present invention, a first access door is hinged to a front surface of the inverter box, and a first handle is fixed to the front surface of the first access door.

As a preferable technical scheme of the present invention, through holes are formed in the surface of the inverter box in a penetrating manner, and the front surface of the inverter box is provided with a dust-proof mechanism at the outer side of the through holes.

As a preferred technical solution of the present invention, the dustproof mechanism includes a protruding block, a communication port, a protection net, and a vertical block, the protruding block is symmetrically fixed on the front surface of the inverter box, the surface of the protruding block is provided with the communication port in a penetrating manner, the vertical blocks are symmetrically distributed and fixed on the inner side surface of the protruding block, and the surface of the vertical block is provided with a groove into which the protection net can be inserted.

As a preferable technical solution of the present invention, a third handle is fixed to the top of the protection net, and the third handle has an "n" type structure.

In a preferred embodiment of the present invention, a second access door is hinged to a front surface of the control box, and a second handle is fixed to a surface of the second access door.

The invention also discloses a using method of the underground long-distance power supply device, which comprises the following steps:

the method comprises the following steps: the protective net is picked up through the third handle and inserted into the two oppositely distributed grooves, when the surface of the protective net has dust to block the inversion box from radiating heat, the protective net can be pulled out along the grooves through the third handle for cleaning, and after cleaning, the protective net is inserted into the two oppositely distributed grooves;

step two: the hand wheel is rotated to push the screw rod, the screw rod drives the abutting plate to push, so that the abutting plate abuts against the bottom of the main loop box, the main loop box is supported, and the load borne by the main loop box is reduced;

step three: after the underground power transmission line is assembled, the power transmission line is laid underground, and the control box is operated to supply power to underground equipment.

Compared with the prior art, the invention has the beneficial effects that:

(1) the support component designed on the support frame drives the abutting plate to advance through the screw rod, so that the abutting plate abuts against the bottom of the main loop box, the main loop box is supported, and the load borne by the main loop box is reduced;

(2) through link up the through-hole of seting up relative distribution on the surface at the contravariant case, and the front surface of contravariant case is located the outside of through-hole and sets up dustproof mechanism, helps better utilization protection network separation dust to the heat dissipation, also be convenient for when protection network surface deposition, take off the protection network and clean.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the right view structure of the present invention;

FIG. 3 is an enlarged view of the region H in FIG. 1 according to the present invention;

FIG. 4 is a schematic top cross-sectional view of a bump according to the present invention;

in the figure: 1. a base; 2. a main circuit box; 3. a support frame; 4. a support block; 5. a universal wheel; 6. a bump; 7. an inverter box; 8. a resonant capacitor; 9. a first access door; 10. a control box; 11. a second handle; 12. a second access door; 13. a high-frequency transformer; 14. a screw; 15. a resisting plate; 16. a bearing; 17. a nut; 18. a hand wheel; 19. a communication port; 20. a protective net; 21. a third handle; 22. a groove; 23. erecting a block; 24. a first handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a technical solution: a long-distance power supply device in pit comprises a base 1 and a support frame 3, wherein the base 1 and the support frame 3 support an inverter box 7, a control box 10 and a high-frequency transformer 13, universal wheels 5 are fixed at the bottom of the support frame 3, so that the power supply device can move through the universal wheels 5, the base 1 is fixed at the top of the support frame 3, the inverter box 7 and the control box 10 are sequentially installed at the top of the base 1 from left to right, the high-frequency transformer 13 is installed at one side of the inverter box 7 and the control box 10 at the top of the base 1, a plurality of resonant capacitors 8 distributed at intervals are fixed at the top of the inverter box 7, a main loop box 2 is installed at the bottom of the base 1, a support assembly is further arranged on the support frame 3 and comprises a support block 4, a screw 14, a support plate 15, a bearing 16 and a nut 17, a through hole is formed in the surface of the support block 4, and a nut 17 screwed with, one end of the screw 14 is fixed with a resisting plate 15 which can resist the main loop box 2, a bearing 16 is arranged at the joint of the resisting plate 15 and the screw 14, a hand wheel 18 is rotated to push the screw 14, the screw 14 pushes the resisting plate 15 to push, the resisting plate 15 resists the bottom of the main loop box 2 to support the main loop box 2, and the load borne by the main loop box 2 is reduced.

In this embodiment, preferably, the supporting block 4 is an inverted "U" shaped structure, and a hand wheel 18 is fixed to the other end of the screw 14, so that it is more convenient to rotate the screw 14 through the hand wheel 18; the supporting block 4 can better play a role in stabilizing and supporting.

In this embodiment, preferably, the front surface of the inverter box 7 is hinged with a first access door 9, and a first handle 24 is fixed on the front surface of the first access door 9, so as to facilitate opening of the first access door 9, thereby performing maintenance on the inside of the inverter box 7.

In this embodiment, preferably, through holes are formed through the surface of the inverter box 7 in a relatively distributed manner, a dust-proof mechanism is disposed on the front surface of the inverter box 7, the dust-proof mechanism includes a protrusion 6, a communication port 19, a protection net 20 and a vertical block 23, the protrusion 6 is symmetrically fixed on the front surface of the inverter box 7, the communication port 19 is formed through the surface of the protrusion 6, the vertical block 23 is symmetrically fixed on the inner side surface of the protrusion 6, a groove 22 into which the protection net 20 can be inserted is formed on the surface of the vertical block 23, a third handle 21 is fixed on the top of the protection net 20, the third handle 21 is an "n" type structure, when the protection net 20 is used, the protection net 20 is taken up by the third handle 21, the protection net 20 is inserted into the two grooves 22 which are relatively distributed, when the inversion box 7 is blocked on the surface of the protection net 20 to dissipate heat, the protection net 20 can be pulled out along the groove 22 by the third handle, the cleaning is carried out, after the cleaning, the protective net 20 is inserted into the two grooves 22 which are distributed oppositely, the protective net 20 is convenient to take and place, dust can be blocked by the protective net 20 better, heat dissipation is facilitated, and the protective net 20 can be taken down for cleaning when dust is deposited on the surface of the protective net 20.

In this embodiment, preferably, the front surface of the control box 10 is hinged with a second access door 12, and a second handle 11 is fixed on the surface of the second access door 12, so as to facilitate opening the second access door 12, thereby performing internal maintenance on the control box 10.

A use method of a downhole long-distance power supply device comprises the following steps:

the method comprises the following steps: the protective net 20 is picked up through the third handle 21, the protective net 20 is inserted into the two oppositely distributed grooves 22, when the surface of the protective net 20 has dust to block the inversion box 7 for heat dissipation, the protective net 20 can be pulled out along the grooves 22 through the third handle 21 for cleaning, and after cleaning, the protective net 20 is inserted into the two oppositely distributed grooves 22;

step two: the hand wheel 18 is rotated to push the screw 14, the screw 14 drives the abutting plate 15 to push, so that the abutting plate 15 abuts against the bottom of the main loop box 2, the main loop box 2 is supported, and the load borne by the main loop box 2 is reduced;

step three: after assembly, the power lines are laid downhole and the control box 10 is operated to power the downhole equipment.

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. The utility model provides an underground long distance power supply unit, includes base (1) and support frame (3), the bottom of support frame (3) is fixed with universal wheel (5), the top of support frame (3) is fixed with base (1), contravariant case (7) and control box (10) are installed from a left side to the right side in proper order to the top of base (1), high frequency transformer (13) are installed to one side that the top of base (1) is located contravariant case (7) and control box (10), the top of contravariant case (7) is fixed with a plurality of interval distribution's resonance electric capacity (8), major loop case (2), its characterized in that are installed to the bottom of base (1): the supporting frame (3) is further provided with a supporting assembly, the supporting assembly comprises a supporting block (4), a screw rod (14), a supporting plate (15), a bearing (16) and a nut (17), a through hole is formed in the surface of the supporting block (4), the nut (17) screwed with the screw rod (14) is fixed in the through hole, the supporting plate (15) capable of being abutted against the main loop box (2) is fixed at one end of the screw rod (14), and the bearing (16) is arranged at the joint of the supporting plate (15) and the screw rod (14).

2. A downhole long distance power supplying apparatus according to claim 1, wherein: the supporting block (4) is of an inverted U-shaped structure, and a hand wheel (18) is fixed at the other end of the screw rod (14).

3. A downhole long distance power supplying apparatus according to claim 1, wherein: the front surface of the inverter box (7) is hinged with a first access door (9), and a first handle (24) is fixed on the front surface of the first access door (9).

4. A downhole long distance power supplying apparatus according to claim 3, wherein: the surface of the inverter box (7) is provided with through holes which are distributed oppositely in a penetrating way, and the front surface of the inverter box (7) is provided with a dustproof mechanism at the outer side of the through holes.

5. A downhole long-distance power supply device according to claim 4, wherein: the dustproof mechanism comprises a convex block (6), a communication port (19), a protective net (20) and a vertical block (23), wherein the convex block (6) is symmetrically fixed on the front surface of the inverter box (7), the communication port (19) is formed in the surface of the convex block (6) in a penetrating mode, the vertical block (23) is symmetrically distributed and fixed on the inner side surface of the convex block (6), and a groove (22) for inserting the protective net (20) is formed in the surface of the vertical block (23).

6. A downhole long-distance power supply device according to claim 5, wherein: a third handle (21) is fixed at the top of the protective net (20), and the third handle (21) is of an n-shaped structure.

7. A downhole long distance power supplying apparatus according to claim 1, wherein: the front surface of the control box (10) is hinged with a second access door (12), and a second handle (11) is fixed on the surface of the second access door (12).

8. Use of a downhole long distance power supply according to any of claims 1-7, characterized in that: the using method comprises the following steps:

the method comprises the following steps: the protective net (20) is picked up through the third handle (21), the protective net (20) is inserted into the two oppositely-distributed grooves (22), when dust on the surface of the protective net (20) blocks the inversion box (7) to dissipate heat, the protective net (20) can be pulled out along the grooves (22) through the third handle (21) to be cleaned, and after the cleaning, the protective net (20) is inserted into the two oppositely-distributed grooves (22);

step two: the hand wheel (18) is rotated to push the screw rod (14), the screw rod (14) drives the abutting plate (15) to push, the abutting plate (15) abuts against the bottom of the main loop box (2), the main loop box (2) is supported, and the load borne by the main loop box (2) is reduced;

step three: after the underground power supply is assembled, the power transmission lines are laid underground, and the control box (10) is operated to supply power to underground equipment.