CN109494596B - An anti-condensation non-assistance ventilation device for a ring network cabinet - Google Patents

Abstract

The invention discloses an anti-condensation non-assistance ventilation device for a ring network cabinet, and relates to the technical field of ventilation devices for the ring network cabinet. It includes a support seat above the cable ditch and a cabinet above the support seat. The cabinet body is connected with the support seat. The upper end surface of the support seat is provided with a plurality of ventilation devices. The ventilation devices include a wind cap, a connecting pipe and a support cylinder. The upper end of the pipe is connected with the air cap, the support cylinder is sleeved outside the connection pipe, the support cylinder is connected with the connection pipe, the support cylinder is matched with the through hole on the upper end face of the support seat, and a limit plate is arranged between the connection pipe and the support cylinder, and the limit plate and An elastic piece is arranged between the connecting pipes, and an installation hole is arranged on the wall of the support cylinder, and the installation hole is matched with the limit plate. The invention can prevent the hot air in the cable trench from entering the cabinet to form condensation phenomenon, avoid the problem that the switch in the cabinet is corroded and cause the switch to fail to operate correctly, improve the reliability of power supply, and do not need to spend a lot of manpower and material resources to condense the ring network cabinet. Dew erasing reduces security risks.

Description

An anti-condensation non-assistance ventilation device for a ring network cabinet

technical field

The invention relates to the technical field of ventilation devices for ring main units, in particular to an anti-condensation non-assist ventilation device for ring main units.

Background technique

The ring network cabinet, namely the ring network power supply unit RMU, is a new and fast-developing smart grid power distribution equipment in recent years; the ring network cabinet includes a support seat above the cable trench and a cabinet above the support seat , the cabinet is connected with the support seat, the cable is coiled in the cable trench, and enters the ring network cabinet through the support seat.

When used in winter, the temperature difference between day and night is large. Since the cable trench is in a sealed space, the air in the cable trench is higher than the air in the cabinet of the ring main unit and the outside air temperature. The hot air in the cable trench cannot circulate, only It can enter the cabinet of the ring main unit along the cable, and the hot air is cooled and liquefied in the cabinet of the ring main unit, causing condensation. The switch cannot operate correctly, reducing the reliability of the power supply.

In the prior art, a sealing ring is used to seal the wire hole where the cable passes through the support base to prevent the hot air in the cable trench from entering the cabinet of the ring network cabinet along the cable. The reason why the sealing ring is loose during the maintenance process of electrical equipment will lead to poor sealing effect. A large amount of hot air is still easy to enter the cabinet along the cable. The use of the sealing ring cannot eliminate the influence of condensation. Large manpower and material resources are required to wipe the condensation of the ring main unit, which has a great potential safety hazard.

SUMMARY OF THE INVENTION

The present invention is aimed at the above-mentioned deficiencies in the prior art, and provides an anti-condensation and non-assistance ventilation device for a ring network cabinet. The invention can make the hot air in the cable trench flow out of the ventilation device preferentially, and avoid the cable trench in the prior art. The hot air inside can only flow out of the cable trench from the sealing ring, which leads to the situation that the hot air in the cable trench enters the cabinet, realizes the timely ventilation of the cable trench, reduces the temperature in the cable trench, and avoids the occurrence of heat in the cable trench. The hot air enters the cabinet to form condensation phenomenon, thereby avoiding the corrosion of circuit breakers, load switches and other automation mechanisms in the cabinet, resulting in the problem that the switches cannot operate correctly, improving the reliability of power supply, and eliminating the need to spend a lot of manpower and material resources on the ring network The erasing of condensation in the cabinet reduces the potential safety hazard.

To achieve the above purpose, the invention provides the following technical solutions:

An anti-condensation non-assistance ventilation device for a ring network cabinet, comprising a support seat arranged above a cable trench and a cabinet body arranged above the support seat, the cabinet body is connected with the support seat, and the support seat is a shell with an open lower end face The upper end surface of the support seat is provided with a plurality of ventilation devices, the upper end surface of the support seat is provided with through holes and threading holes, and the threading holes are matched with the cables in the cabinet;

The ventilation device includes an air cap, a connecting pipe and a supporting cylinder. The upper end of the connecting pipe is connected with the air cap, the supporting cylinder is sleeved outside the connecting pipe, the supporting cylinder is connected with the connecting pipe, the supporting cylinder is matched with the through hole, and the connecting pipe and the supporting cylinder are provided with A plurality of limit plates, the plurality of limit plates are evenly distributed along the circumferential direction of the connecting pipe in the same horizontal plane, the limit plates are arranged above the support seat, and the plurality of limit plates are clockwise along the circumferential direction of the connecting pipe The rotating end is connected with the connecting pipe, an elastic piece is arranged between the limit plate and the connecting pipe, one end of the elastic piece is connected with the connecting pipe, the end of the elastic piece away from the connecting pipe is connected with the limit plate, and the cylinder wall of the support cylinder is provided with A plurality of installation holes, the plurality of installation holes are evenly distributed along the circumferential direction of the support cylinder, and the installation holes are matched with the limit plate.

Further, the upper end face of the support cylinder and the lower end face of the support cylinder are provided with connecting holes, the connecting pipe and the connecting hole are gap-fitted, a support ring is arranged above the support cylinder, the support ring is sleeved on the upper part of the connecting pipe, and the support ring Connected with the connecting pipe, the outer diameter of the support ring is larger than the diameter of the connecting hole.

Further, a plurality of auxiliary limit plates are arranged between the connecting pipe and the support cylinder, and the plurality of auxiliary limit plates are evenly distributed along the circumferential direction of the connecting pipe in the same horizontal plane, and the auxiliary limit plates are arranged on the support seat. In the cavity, the auxiliary limit plates correspond to the limit plates, and one end of the plurality of auxiliary limit plates that rotate clockwise along the circumferential direction of the connecting pipe is connected with the connecting pipe, and auxiliary limit plates are provided between the auxiliary limit plates and the connecting pipe. An elastic piece, one end of the auxiliary elastic piece is connected with the connecting pipe, and one end of the auxiliary elastic piece away from the connecting pipe is connected with the auxiliary limiting plate, the cylinder wall of the support cylinder is provided with a plurality of auxiliary installation holes, and the plurality of auxiliary installation holes are arranged along the support cylinder. Evenly distributed in the circumferential direction, the auxiliary mounting holes are matched with the auxiliary limit plate.

Further, an extension pipe is arranged in the connection pipe, the axis of the extension pipe coincides with the axis of the connection pipe, the extension pipe is threaded with the connection pipe, and the upper end of the extension pipe is connected with the air cap.

Further, the extension tube is a transparent tube.

Further, the lower end of the connecting pipe is provided with a diversion tube, the inner cavity of the diversion tube is a gradually expanding structure from top to bottom, and the upper end of the diversion tube is connected with the connecting tube.

Further, the upper part of the extension pipe is provided with a plurality of support holes, and the plurality of support holes are evenly distributed along the circumferential direction of the extension pipe. The circumferential direction of the connecting rod is evenly distributed, the length direction of the connecting rod is parallel to the axis of the guide pipe, the lower end of the connecting rod is connected with the guide pipe, the upper end of the connecting rod is provided with a support rod, and the length direction of the support rod is perpendicular to the length direction of the connecting rod One end of the support rod is connected with the connecting rod, and one end of the support rod away from the connecting rod is matched with the support hole.

Further, a sealing ring is arranged in the threading hole, and the sealing ring is connected with the support seat.

Compared with the prior art, the beneficial effects of the invention are:

1. In the present invention, by setting a plurality of ventilation devices on the upper end face of the support base, the hot air in the cable trench can preferentially flow out through the ventilation device, avoiding that in the prior art, the hot air in the cable trench can only flow out from the sealing ring. the cable trench, and the hot air in the cable trench enters the cabinet, realizes the timely ventilation of the cable trench, reduces the temperature in the cable trench, and prevents the hot air in the cable trench from entering the cabinet and forming condensation phenomenon. In this way, the corrosion of circuit breakers, load switches and other automation mechanisms in the cabinet can be avoided, resulting in the failure of the switches to operate correctly, which improves the reliability of power supply, eliminates the need to spend a lot of manpower and material resources on erasing condensation in the ring main unit, and reduces safety. hidden danger.

By setting the air cap, the connecting pipe, the supporting cylinder, the limiting plate and the elastic member, the ventilation device can rotate the connecting pipe clockwise, so that the connecting pipe drives the limiting plate to rotate together until the limiting plate rotates to be opposite to the mounting hole of the supporting cylinder. Under the action of the elastic piece, the limit plate stretches in the direction away from the connecting pipe, so that the limit plate extends out of the support cylinder through the installation hole, so that the limit plate is blocked on the upper end surface of the support seat, preventing the The support cylinder falls from the through hole of the support seat, and the limiting plate supports the support cylinder, thereby realizing the installation of the ventilation device on the support seat, making the disassembly and assembly of the ventilation device and the support seat more convenient.

2. In the present invention, by setting the connecting hole and the support ring, on the one hand, it is convenient for the connecting pipe to rotate in the support cylinder, without the situation that the connecting pipe falls from the support cylinder when it rotates in the support cylinder. On the other hand, the support The ring can support the connecting pipe in the support cylinder, share the weight of the connecting pipe borne by the limit plate, prolong the service life of the device, reduce the number of replacements, and thus reduce the replacement cost.

3. In the present invention, by setting the auxiliary limit plate and the auxiliary elastic member, the connecting cylinder can be rotated clockwise to make the limit plate protrude from the support cylinder, and at the same time, the auxiliary limit plate can be extended from the support cylinder, so that the auxiliary limit plate can be extended. The board is stuck at the lower end of the through hole, so as to avoid the situation that the ventilation device is lifted by the wind due to harsh natural conditions outside, such as in the case of strong wind, so that the ventilation device can be installed more firmly on the support seat.

4. The present invention can extend the air flow channel by setting the extension pipe, and improve the pulling effect of the hot air in the cable trench.

5. In the present invention, by setting the extension tube as a transparent tube, it is convenient for sunlight to heat the air in the extension tube. Since the hot air tends to rise, the pulling effect of the hot air in the cable trough is further improved.

6. The present invention can reduce the power loss caused by the turbulent flow of the hot air in the cable trench at the lower end of the connecting pipe by setting the guide pipe, so that the hot air in the cable trench can flow out of the cable trench more smoothly.

7. By setting the connecting rod and the supporting rod, the present invention can make the disassembly and assembly of the guide pipe and the extension pipe more convenient, and the use is more flexible.

8. The present invention can improve the sealing effect on the inside of the cabinet by setting the sealing ring. While ventilating the cable trench with the ventilation device, it can further prevent the hot air in the cable trench from entering the cabinet through the threading hole.

Description of drawings

Fig. 1 is a structural schematic diagram 1 of an anti-condensation unassisted ventilation device for a ring main unit;

Fig. 2 is a schematic diagram 2 of the structure of an anti-condensation unassisted ventilation device for a ring main unit;

Fig. 3 is the structural schematic diagram 1 of the ventilation device;

Fig. 4 is the structural schematic diagram 2 of the ventilation device;

Figure 5 is a schematic structural diagram three of the ventilation device;

FIG. 6 is a schematic diagram 4 of the structure of the ventilation device.

In the picture: 1-Air cap, 2-Connecting pipe, 3-Limiting plate, 4-Elastic part, 5-Auxiliary elastic part, 6-Auxiliary limiting plate, 7-Guide pipe, 8-Support cylinder, 9-Support Ring, 10-cabinet, 11-support base, 12-thread hole, 13-connecting rod, 14-auxiliary installation hole, 15-installation hole, 16-support rod, 17-extension pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1:

An anti-condensation unassisted ventilation device for a ring network cabinet, as shown in Figures 1 and 2, includes a support base 11 arranged above the cable trench and a cabinet 10 arranged above the support base 11. The cabinet body 10 and the support base 11 is connected by bolts. The support seat 11 is a shell structure with an open lower end surface. The upper end surface of the support seat 11 is provided with four ventilation devices. The four ventilation devices are respectively located at the corners of the cabinet 10. The upper end face is provided with four through holes and a threading hole 12, and the threading hole 12 is matched with the cable in the cabinet body 10;

As shown in Figures 3-6, the ventilation device includes a hood 1, a connecting pipe 2 and a support cylinder 8; specifically: the hood 1 adopts an unpowered hood; the upper end of the connecting pipe 2 is welded and fixed to the hood 1, and the supporting cylinder 8 is sleeved on the connecting pipe In addition, the upper end face of the support cylinder 8 and the lower end face of the support cylinder 8 are provided with connecting holes, the connecting pipe 2 is matched with the connecting hole, the connecting pipe 2 can rotate in the connecting hole, and a support ring is arranged above the supporting cylinder 8. 9. The support ring 9 is sleeved on the upper part of the connection pipe 2, the support ring 9 is welded and fixed with the connection pipe 2, the outer diameter of the support ring 9 is larger than the diameter of the connection hole; the support cylinder 8 is gap-fitted with the through hole, and the connection pipe 2 and the support cylinder A plurality of limit plates 3 are arranged between the 3 are welded and fixed to the connecting pipe 2 along the circumferential direction of the connecting pipe 2 at one end that rotates clockwise, and an elastic member 4 is arranged between the limit plate 3 and the connecting pipe 2. Specifically: the elastic member 4 adopts a compression spring; the elastic member One end of 4 is welded and fixed with the connecting pipe 2, and the end of the elastic member 4 away from the connecting pipe 2 is welded and fixed with the limit plate 3. The cylindrical wall of the support cylinder 8 is provided with a plurality of mounting holes 15, and the plurality of mounting holes 15 are along the support cylinder. 8 is evenly distributed in the circumferential direction, and the mounting holes 15 are matched with the limiting plate 3 .

A plurality of auxiliary limit plates 6 are arranged between the connecting pipe 2 and the support cylinder 8, and the plurality of auxiliary limit plates 6 are evenly distributed along the circumferential direction of the connecting pipe 2 in the same horizontal plane. The auxiliary limit plates 6 are arranged on the support seat. In the cavity of 11, the auxiliary limit plate 6 corresponds to the limit plate 3, specifically: the auxiliary limit: 6 is the same as the limit plate 3 in number, and the auxiliary limit plate 6 is arranged directly below the limit plate 3; One end of the plurality of auxiliary limit plates 6 that rotate clockwise along the circumferential direction of the connecting pipe 2 is welded and fixed to the connecting pipe 2, and an auxiliary elastic member 5 is arranged between the auxiliary limit plates 6 and the connecting pipe 2. Specifically: auxiliary Elasticity: 5 also uses a compression spring, one end of the auxiliary elastic member 5 is welded and fixed with the connecting pipe 2, and one end of the auxiliary elastic member 5 away from the connecting pipe 2 is welded and fixed with the auxiliary limit plate 6, and the cylinder wall of the support cylinder 8 is provided with multiple Auxiliary installation holes 14 , a plurality of auxiliary installation holes 14 are evenly distributed along the circumferential direction of the support cylinder 8 , and the auxiliary installation holes 14 are matched with the auxiliary limiting plate 6 .

When in use, insert the support pipe 8 of the ventilation device into the through hole of the support base 11, and then turn the connecting pipe 2 clockwise. The connecting pipe 2 drives the limit plate 3 and the auxiliary limit plate 6 to rotate together. When one end of the connecting pipe 2 is moved to the position of the mounting hole 15 of the support cylinder 8, and the end of the auxiliary limiting plate 6 away from the connecting pipe 2 is moved to the position of the auxiliary mounting hole 14 of the supporting cylinder 8, the limiting plate 3 is on the elastic member 4. The auxiliary limit plate 6 extends outward under the force of the auxiliary elastic member 5, so that the end of the limit plate 3 away from the connecting pipe 2 extends out of the mounting hole 15, and the auxiliary limit plate 6 is far away from the connection. One end of the pipe 2 protrudes from the auxiliary limit hole 14. At this time, stop the rotation of the connecting pipe 2, and the limit plate 3 can be supported on the upper end surface of the support seat 11 to prevent the support pipe 8 from falling, and the auxiliary limit plate 6 is stuck in the support Below the upper end face of the seat 11 , the ventilation device is prevented from being overturned, and the ventilation device is installed on the support seat 11 , so that the ventilation device and the support seat 11 are securely installed. After installation, the air with higher temperature in the cable trench passes through the support base 11, the connecting pipe 2 and the air cap 1 to the outside, so as to effectively transport the hot air in the cable trench to the outside world, thereby preventing the hot air in the cable trench from entering the cabinet. inside the cabinet 10 , thereby effectively preventing the occurrence of condensation phenomenon in the cabinet 10 .

Embodiment 2:

The second embodiment is the same as the first embodiment, the difference lies in that, as shown in Figures 3-6, the second embodiment is provided with an extension pipe 17 in the connecting pipe 2. Specifically, the extension pipe 17 is a transparent pipe, The axis of the extension pipe 17 coincides with the axis of the connection pipe 2 , the extension pipe 17 is screwed with the connection pipe 2 , and the upper end of the extension pipe 17 is welded and fixed to the air cap 1 . By twisting the extension pipe 17, the extension pipe 17 is screwed out of the connection pipe 2, so that the total length of the connection pipe 2 and the extension pipe 17 is increased, thereby extending the air flow path.

Further, the lower end of the connecting pipe 2 is provided with a guide pipe 7, the inner cavity of the guide pipe 7 is a gradually expanding structure from top to bottom, and the upper end of the guide pipe 7 is connected with the connecting pipe 2, specifically: extending The upper part of the pipe 17 is provided with a plurality of supporting holes, and the plurality of supporting holes are evenly distributed along the circumferential direction of the extension pipe 17 . The circumferential direction of the connecting rod 13 is evenly distributed, the length direction of the connecting rod 13 is parallel to the axis of the guide pipe 7, the lower end of the connecting rod 13 is welded and fixed with the guide pipe 7, the upper end of the connecting rod 13 is provided with a support rod 16, the length of the support rod 16 The direction is perpendicular to the length direction of the connecting rod 13 , one end of the supporting rod 16 is welded and fixed to the connecting rod 13 , and one end of the supporting rod 16 away from the connecting rod 13 is matched with the supporting hole.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (6)

1. A condensation-preventing non-power-assisted ventilation device of a ring main unit comprises a supporting seat arranged above a cable duct and a cabinet body arranged above the supporting seat, wherein the cabinet body is connected with the supporting seat;

the upper end surface of the supporting seat is provided with a plurality of ventilation devices, each ventilation device comprises an air cap, a connecting pipe and a supporting cylinder, the upper end of each connecting pipe is connected with the air cap, the upper end surface of each supporting cylinder and the lower end surface of each supporting cylinder are respectively provided with a connecting hole, the connecting pipes are in clearance fit with the connecting holes, a supporting ring is arranged above each supporting cylinder and is sleeved on the upper part of each connecting pipe, the supporting rings are connected with the connecting pipes, the outer diameter of each supporting ring is larger than the aperture of each connecting hole, the supporting cylinders are matched with the through holes, a plurality of limiting plates are arranged between the connecting pipes and the supporting cylinders and are uniformly distributed along the circumferential direction of the connecting pipes in the same horizontal plane, the limiting plates are arranged above the supporting seats, one ends, rotating clockwise along the circumferential direction of the connecting pipes, of the limiting plates are connected with the connecting pipes, the wall of the supporting cylinder is provided with a plurality of mounting holes, the mounting holes are uniformly distributed along the circumferential direction of the supporting cylinder, and the mounting holes are matched with the limiting plate;

be equipped with a plurality of supplementary limiting plates between connecting pipe and the support section of thick bamboo, a plurality of supplementary limiting plates are along the circumferencial direction evenly distributed of connecting pipe in same horizontal plane, supplementary limiting plate is located in the cavity of supporting seat, supplementary limiting plate corresponds with the limiting plate, a plurality of supplementary limiting plates are all connected with the connecting pipe along the circumferencial direction clockwise rotation's of connecting pipe one end, be equipped with supplementary elastic component between supplementary limiting plate and the connecting pipe, the one end and the connecting pipe of supplementary elastic component are connected, the one end and the supplementary limiting plate connection of connecting pipe are kept away from to supplementary elastic component, the section of thick bamboo wall of a support section of thick bamboo is equipped with a plurality of supplementary mounting holes, a plurality of supplementary mounting holes are along.

2. The non-assisted ventilation device for preventing condensation of the ring main unit as claimed in claim 1, wherein an extension pipe is arranged in the connecting pipe, an axis of the extension pipe coincides with an axis of the connecting pipe, the extension pipe is in threaded fit with the connecting pipe, and an upper end of the extension pipe is connected with the hood.

3. The ring main unit condensation-prevention unpowered ventilation device as claimed in claim 2, wherein the extension pipe is a transparent pipe.

4. The non-assisted ventilation device for preventing condensation of ring main unit as claimed in claim 3, wherein the lower end of the connecting pipe is provided with a flow guiding pipe, the inner cavity of the flow guiding pipe is of a gradually expanding structure from top to bottom, and the upper end of the flow guiding pipe is connected with the connecting pipe.

5. The non-assisted ventilation device for preventing condensation of ring main unit as claimed in claim 4, wherein the upper portion of the extension tube is provided with a plurality of support holes, the plurality of support holes are uniformly distributed along the circumferential direction of the extension tube, the upper end of the flow guide tube is provided with a plurality of connecting rods, the plurality of connecting rods are uniformly distributed along the circumferential direction of the flow guide tube, the length direction of the connecting rods is parallel to the axis of the flow guide tube, the lower end of the connecting rods is connected with the flow guide tube, the upper end of the connecting rods is provided with a support rod, the length direction of the support rod is perpendicular to the length direction of the connecting rods, one end of the support rod is connected with the connecting.

6. The non-assisted ventilation device for preventing condensation of ring main unit as claimed in claim 1, wherein the threading hole is provided with a sealing ring, and the sealing ring is connected with the supporting seat.

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