CN210723820U

CN210723820U - Direct current traction substation relay protection device

Info

Publication number: CN210723820U
Application number: CN201921586105.4U
Authority: CN
Inventors: 郭志坚; 张岳贤
Original assignee: Shanxi Institute of Technology
Current assignee: Shanxi Institute of Technology
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-06-09
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a direct current pulls electric substation relay protection device, including device main part and heat dissipation case, the inside fixed mounting of device main part has the mounting panel, the back fixed mounting of mounting panel has the heat-conducting plate, one side fixedly connected with condenser tube of heat-conducting plate, the ventilation grid has all been seted up to the both sides of device main part, one side fixed mounting of heat dissipation incasement wall has the heat dissipation fan, the junction fixed mounting of device main part and heat dissipation case has the ventilation pipe. This direct current pulls electric substation relay protection device through the heat transfer of heat-conducting plate to and the cooperation of cooling water pipe, water tank, miniature force (forcing) pump, inlet tube, outlet pipe and back flow, can utilize the principle of water-cooling to cool down the mounting panel, improve device's radiating efficiency, through the setting of heat dissipation fan and ventilation pipe, the heat dissipation fan can be taken the inside heat of device out from the ventilation pipe, thereby improve device's rate of heat dissipation.

Description

Direct current traction substation relay protection device

Technical Field

The utility model relates to a relay protection technical field specifically is a direct current pulls electric substation relay protection device.

Background

With the rapid development of economy, more and more cities select urban rail transit as a public transport means, and as the rail transit is more economical by adopting low-voltage direct current power supply, domestic rail transit mostly adopts 1500V or 750V system direct current to supply power to locomotives. The direct current traction power supply voltage is low, and the short-circuit current has great harm to equipment when short circuit occurs; the current of a feeder line of a traction substation can change greatly along with the difference of operation conditions such as acceleration and braking of a locomotive; in addition, the short-circuit current is greatly different according to the distance from the short-circuit point to the traction substation. Therefore, the relay protection device is a very important protection device, and the direct current traction relay protection device is an important protection device of a direct current traction power supply system.

At present, because the internal structure of the relay protection device is complex, the relay protection device can have large heat which can not be dissipated inside the work, the heat dissipation performance of the existing direct-current traction relay protection device is poor, and the service life of parts is easily influenced, so that the relay protection device of the direct-current traction substation with high heat dissipation efficiency is needed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a direct current pulls electric substation relay protection device has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a relay protection device for a direct current traction substation comprises a device body and a heat dissipation box, wherein the heat dissipation box is fixedly mounted at the top of the device body, a mounting plate is fixedly mounted in the device body, a heat conduction plate is fixedly mounted on the back surface of the mounting plate, a cooling water pipe is fixedly connected to one side of the heat conduction plate, a water tank and a micro pressure pump are arranged on one side of the cooling water pipe in the device body, an inlet pipe is fixedly connected to the output end of the micro pressure pump, one end of the inlet pipe, far away from the micro pressure pump, is fixedly connected with the water tank, a water outlet pipe is fixedly connected to one side of the water tank, one end of the water outlet pipe, far away from the water tank, is fixedly connected with the cooling water pipe, a return pipe is fixedly connected to one end of the cooling water pipe, far away from the, one side fixed mounting of heat dissipation incasement wall has the heat dissipation fan, the device main part and the junction fixed mounting of heat dissipation case have the ventilation pipe.

Optionally, the front surface of the device main body is movably connected with a door body through a hinge, and a transparent window is arranged in the middle of the door body.

Optionally, a cover plate is fixedly mounted on one side of the device main body through a bolt.

Optionally, a rain shield is arranged on the outer surface of the device main body above the ventilation grating, and a dust screen is fixedly mounted on one side of the inner wall of the device main body above the ventilation grating.

Optionally, a ventilation net is fixedly mounted on one side of the heat dissipation box close to the heat dissipation fan.

Optionally, the bottom of the device main body is fixedly provided with four supporting legs, and the four supporting legs are respectively arranged at four corners of the bottom of the device main body.

(III) advantageous effects

The utility model provides a direct current pulls electric substation relay protection device possesses following beneficial effect:

1. this direct current pulls electric substation relay protection device through the setting of heat-conducting plate, can transmit the heat that the electron device of installation on the mounting panel distributed out, through the setting of cooling water pipe, water tank, miniature force (forcing) pump, inlet tube, outlet pipe and back flow, can utilize the principle of water-cooling to cool down the mounting panel to play the radiating effect of cooling down, improve the radiating efficiency of device.

2. This direct current pulls electric substation relay protection device through the setting of heat dissipation fan and ventilation pipe, and the heat dissipation fan can be taken the inside heat of device out from the ventilation pipe to improve the radiating rate of device.

Drawings

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

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

fig. 3 is a schematic side view of the cross-sectional structure of the present invention.

In the figure: 1. a device main body; 2. a heat dissipation box; 3. mounting a plate; 4. a heat conducting plate; 5. a cooling water pipe; 6. a water tank; 7. a micro pressure pump; 8. a water inlet pipe; 9. a water outlet pipe; 10. a return pipe; 11. a ventilation grille; 12. a heat dissipation fan; 13. a vent pipe; 14. a door body; 15. a transparent window; 16. a cover plate; 17. a rain shield; 18. a dust screen; 19. a ventilation net; 20. and (5) supporting legs.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: a relay protection device for a direct current traction substation comprises a device main body 1 and a heat dissipation box 2, wherein the heat dissipation box 2 is fixedly installed at the top of the device main body 1, an installation plate 3 is fixedly installed inside the device main body 1, a heat conduction plate 4 is fixedly installed on the back surface of the installation plate 3, a cooling water pipe 5 is fixedly connected to one side of the heat conduction plate 4, a water tank 6 and a micro pressure pump 7 are arranged at one side of the cooling water pipe 5 inside the device main body 1, an output end of the micro pressure pump 7 is fixedly connected with a water inlet pipe 8, one end, away from the micro pressure pump 7, of the water inlet pipe 8 is fixedly connected with the water tank 6, one side of the water tank 6 is fixedly connected with a water outlet pipe 9, one end, away from the water tank 6, of the water outlet pipe 9 is fixedly connected with the cooling water pipe 5, one end, through the arrangement of the heat conducting plate 4, the heat emitted by the electronic device arranged on the mounting plate 3 can be transferred, through the arrangement of the cooling water pipe 5, the water tank 6, the micro pressure pump 7, the water inlet pipe 8, the water outlet pipe 9 and the return pipe 10, the micro pressure pump 7 pressurizes the water in the water tank 6 and enters the cooling water pipe 5, so that the cooling water pipe 5 cools the heat conducting plate 4, and the heat conducting plate 4 cools the mounting plate 3, thereby achieving the effects of cooling and heat dissipation, meanwhile, the water circulation is realized through the return pipe 10, the ventilation grids 11 are arranged on both sides of the device main body 1, the rain baffle 17 is arranged on the outer surface of the device main body 1 above the ventilation grids 11, the dust screen 18 is fixedly arranged on one side of the ventilation grids 11 on the inner wall of the device main body 1, through the arrangement of the ventilation grids 11, the convection air can be formed inside the, through the arrangement of the rain baffle 17, rainwater can be prevented from entering the device, through the arrangement of the dustproof net 18, external sundries can be prevented from entering the device, so that the interference of external factors on internal devices is avoided, a heat dissipation fan 12 is fixedly arranged on one side of the inner wall of the heat dissipation box 2, a ventilation pipe 13 is fixedly arranged at the joint of the device main body 1 and the heat dissipation box 2, a ventilation net 19 is fixedly arranged on one side of the heat dissipation box 2 close to the heat dissipation fan 12, through the arrangement of the heat dissipation fan 12 and the ventilation pipe 13, the heat inside of the device can be extracted from the ventilation pipe 13 by the heat dissipation fan 12, so that the heat dissipation speed of the device is improved, through the arrangement of the ventilation pipe 19, the heat dissipation fan 12 can be prevented from being interfered by the outside, the front surface of the device main body 1 is movably connected with a door body 14 through a hinge, a transparent, there is apron 16 one side of device main part 1 through bolt fixed mounting, through the setting of apron 16, conveniently maintains the inside water-cooling radiator unit of device, and the bottom fixed mounting of device main part 1 has supporting leg 20, and the quantity of supporting leg 20 is four, and four supporting legs 20 set up respectively in the four corners department of device main part 1 bottom.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In conclusion, this direct current traction substation relay protection device, through the setting of heat-conducting plate 4, can transmit the heat that the electron device installed on mounting panel 3 distributed, through condenser tube 5, water tank 6, miniature force (forcing) pump 7, inlet tube 8, outlet pipe 9 and back flow 10's setting, miniature force (forcing) pump 7 enters into condenser tube 5 with the water pressurization in the water tank 6 in, make condenser tube 5 cool down heat-conducting plate 4, and then heat-conducting plate 4 cools down mounting panel 3, thereby play the radiating effect of cooling, the radiating efficiency of device is improved, through the setting of heat dissipation fan 12 and ventilation pipe 13, heat dissipation fan 12 can take the heat of device inside out from ventilation pipe 13, thereby improve the radiating rate of device.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a direct current draws electric substation relay protection device, includes device main part (1) and heat dissipation case (2), its characterized in that: the device comprises a device body (1), a heat dissipation box (2) is fixedly mounted at the top of the device body (1), a mounting plate (3) is fixedly mounted inside the device body (1), a heat conduction plate (4) is fixedly mounted on the back of the mounting plate (3), a cooling water pipe (5) is fixedly connected to one side of the heat conduction plate (4), a water tank (6) and a micro pressure pump (7) are arranged on one side of the cooling water pipe (5) inside the device body (1), an inlet pipe (8) is fixedly connected to the output end of the micro pressure pump (7), one end of the inlet pipe (8) far away from the micro pressure pump (7) is fixedly connected with the water tank (6), an outlet pipe (9) is fixedly connected to one side of the water tank (6), one end of the outlet pipe (9) far away from the water tank (6) is fixedly connected with the cooling water pipe (5), and one end of the cooling water outlet, one end and miniature force (forcing) pump (7) fixed connection of condenser tube (5) are kept away from in back flow (10), ventilation grid (11) have all been seted up to the both sides of device main part (1), one side fixed mounting of heat dissipation case (2) inner wall has heat dissipation fan (12), the junction fixed mounting of device main part (1) and heat dissipation case (2) has ventilation pipe (13).

2. The direct current traction substation relay protection device according to claim 1, characterized in that: the front of the device main body (1) is movably connected with a door body (14) through a hinge, and the middle of the door body (14) is provided with a transparent window (15).

3. The direct current traction substation relay protection device according to claim 1, characterized in that: a cover plate (16) is fixedly arranged on one side of the device main body (1) through a bolt.

4. The direct current traction substation relay protection device according to claim 1, characterized in that: a rain shield (17) is arranged above the ventilation grating (11) on the outer surface of the device main body (1), and a dust screen (18) is fixedly arranged on one side, located on the ventilation grating (11), of the inner wall of the device main body (1).

5. The direct current traction substation relay protection device according to claim 1, characterized in that: and a ventilation net (19) is fixedly arranged on one side of the heat dissipation box (2) close to the heat dissipation fan (12).

6. The direct current traction substation relay protection device according to claim 1, characterized in that: the device is characterized in that supporting legs (20) are fixedly mounted at the bottom of the device body (1), the number of the supporting legs (20) is four, and the four supporting legs (20) are respectively arranged at four corners of the bottom of the device body (1).