CN211183296U

CN211183296U - Waterproof and fireproof bus duct

Info

Publication number: CN211183296U
Application number: CN201922358478.2U
Authority: CN
Inventors: 张利梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-04
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a waterproof and fireproof bus duct, which comprises a shell, a conductor, an insulating layer and a fireproof filler; the shell comprises an upper cover plate, a lower cover plate, a left side plate and a right side plate, wherein the upper cover plate, the lower cover plate, the left side plate and the right side plate are connected through bolts; the left side plate and the right side plate are provided with a side plate outer shell and a side plate inner shell, the side plate outer shell wraps the side plate inner shell, and a flow guide cavity is formed between the side plate outer shell and the side plate inner shell; through be provided with the heat absorbing sheet in the curb plate inner shell, the inside heat of bus duct can transmit for the heat absorbing sheet through fire-resistant filler, the water conservancy diversion cavity is transmitted in the rethread curb plate inner shell, the water conservancy diversion hole that sets up from the curb plate outer shell again carries out the heat exchange with the outside air, the radiating effect of bus duct has been strengthened, furthermore, because the setting of heat absorbing sheet, the temperature of curb plate inner shell can be higher than the temperature of curb plate outer shell, moist air gets into behind the water conservancy diversion cavity, can condense into water at the lower curb plate outer shell of temperature, water can flow out from the water conservancy diversion hole along the water conservancy diversion cavity, play waterproof.

Description

Waterproof and fireproof bus duct

Technical Field

The utility model relates to an electric power transmission main line, concretely relates to waterproof fire-resistant bus duct.

Background

Along with the rapid development of cities, high-rise buildings are more and more, the electricity load of the buildings is increased rapidly, and the original electric wires and cables are gradually replaced by bus ducts with large capacity and convenient branch and cluster management due to the reasons of small capacity, inconvenient branch, inconvenient cluster management and the like. The bus duct is widely applied to important projects such as an electric power transmission trunk line of fire fighting equipment, a fire fighting emergency equipment trunk line and the like, for example, important projects such as commercial squares, subways, airports, office buildings, entertainment places, public facilities and the like. Therefore, the safety and stability of the bus duct product are of great importance, and the requirement of China on the safety performance of the bus duct product is higher and higher.

Chinese patent CN201868811U discloses a fire-resistant bus duct, which comprises a shell; a plurality of conductors arranged in parallel and spaced apart within the housing, the plurality of conductors being spaced apart from the housing; and an insulating layer covering an exterior of each of the conductors; the fire-resistant bus duct also comprises a fire-resistant filler filled between the plurality of conductors and between the conductors and the shell, so that insulation and fire resistance are realized between the plurality of conductors and between the conductors and the shell; this kind of fire-resistant bus duct thermal diffusivity is strong, have good fire resistance, the problem that exists: has the defect of poor moisture resistance and can cause short circuit due to moisture.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a waterproof fire-resistant bus duct that thermal diffusivity is strong, dampproofing effectual, safe and reliable.

In order to solve the technical problem, the technical scheme of the utility model is that: a waterproof and fireproof bus duct comprises a shell, a plurality of conductors, an insulating layer and a fireproof filler, wherein the conductors are arranged in the shell and are arranged in parallel at intervals; the shell comprises an upper cover plate, a lower cover plate, a left side plate and a right side plate, wherein the upper cover plate, the lower cover plate, the left side plate and the right side plate are connected through bolts; the left side plate and the right side plate are provided with a side plate outer shell and a side plate inner shell, the side plate outer shell wraps the side plate inner shell, and a flow guide cavity is formed between the side plate outer shell and the side plate inner shell; the refractory filler can be a synthetic mica refractory layer or a magnesium oxide composite refractory layer; the upper cover plate, the lower cover plate, the left side plate and the right side plate can be made of steel plates or aluminum profiles, and other metal materials can be adopted according to the needs.

Preferably, four corners of one surface of the side plate shell, which is far away from the flow guide cavity, are inwards concavely provided with flow guide holes, and the flow guide holes are communicated with the flow guide cavity; through setting up the water conservancy diversion hole, moist air can heat release liquefaction water can flow out from the water conservancy diversion hole along the water conservancy diversion cavity at curb plate shell, plays damp-proof effect.

Preferably, the inner shell of the side plate is provided with a plurality of heat absorbing sheets; the heat absorption sheet can enhance the heat dissipation effect.

Preferably, the outer surface of the shell is provided with a fireproof coating; the fireproof coating further enhances the fire resistance of the bus duct.

Preferably, the mica paper or the mica tape is coated on the outer side of the insulating layer.

Preferably, the plurality of waterproof and fireproof bus ducts are connected with each other through the shell to form a multi-row bus duct.

Preferably, the refractory filler is further filled between the conductor and the housing; thereby achieving insulation and fire resistance between the plurality of conductors and between the conductors and the housing.

The utility model discloses technical effect mainly embodies: through be provided with the heat absorbing sheet in the curb plate inner shell, the inside heat of bus duct can transmit for the heat absorbing sheet through fire-resistant filler, the water conservancy diversion cavity is transmitted in the rethread curb plate inner shell, the water conservancy diversion hole that sets up from the curb plate outer shell again carries out the heat exchange with the outside air, the radiating effect of bus duct has been strengthened, furthermore, because the setting of heat absorbing sheet, the temperature of curb plate inner shell can be higher than the temperature of curb plate outer shell, moist air gets into behind the water conservancy diversion cavity, can condense into water at the lower curb plate outer shell of temperature, water can flow out from the water conservancy diversion hole along the water conservancy diversion cavity, play waterproof.

Drawings

Fig. 1 is a schematic view of a single-row four-wire bus duct according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of the side panel of FIG. 1;

FIG. 3 is a left side view of the structure of FIG. 2;

fig. 4 is a schematic view of a double row four-wire bus duct according to a second embodiment of the present invention;

fig. 5 is a schematic view of a single-row five-wire bus duct according to a third embodiment of the present invention;

fig. 6 is a schematic diagram of a double-row five-wire bus duct of the fourth embodiment of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

Example one

As shown in fig. 1, a waterproof and fireproof bus duct comprises a shell 1, four conductors 2 arranged in the shell 1 and arranged in parallel at intervals, an insulating layer 3 arranged on the surface of each conductor 2, and a fireproof filler 4 arranged in the shell 1 and filled between the four conductors; the shell 1 comprises an upper cover plate 11, a lower cover plate 11, a left side plate 12 and a right side plate 12, wherein the upper cover plate 11, the lower cover plate 11, the left side plate and the right side plate 12 are connected through bolts 13; the left side plate 12 and the right side plate 12 are provided with a side plate outer shell 121 and a side plate inner shell 122, the side plate outer shell 121 wraps the side plate inner shell 122, and a flow guide cavity 123 is formed between the side plate outer shell 121 and the side plate inner shell 122; the refractory filler 4 can be a synthetic mica refractory layer or a magnesia composite refractory layer; the upper and lower cover plates 11 and the left and right side plates 12 may be made of steel plates or aluminum profiles, or of course, other metal materials may be used as required. The mica paper or the mica tape is coated on the outer side of the insulating layer 3. The refractory filler 4 is also filled between the conductor 2 and the housing 1; so that insulation and fire resistance are achieved between the plurality of conductors 2 and between the conductors 2 and the housing 1.

As shown in fig. 2 to 3, the inner shell 122 of the side plate is provided with a plurality of heat absorbing fins 1221; the heat absorbing fins 1221 are provided to enhance the heat dissipation effect. The four corners of one surface of the side plate shell 121 far away from the flow guide cavity 123 are recessed inwards to form flow guide holes 1211, and the flow guide holes 1211 are communicated with the flow guide cavity 123; through the arrangement of the diversion holes 123, moist air can release heat in the side plate casing 1211 and be liquefied into water, and the water can flow out of the diversion holes 1211 along the diversion cavity 121, so that the moisture-proof effect is achieved.

The outer surface of the shell 1 is provided with a fireproof coating 100; the fire-resistant coating 100 further enhances the fire-resistant properties of the bus duct.

Example two

As shown in fig. 4, the double-row four-wire bus duct of the present embodiment is obtained by integrally combining the single-row four-wire bus ducts of the first embodiment, the two single-row four-wire bus ducts share one intermediate partition 14, and the intermediate partition 14 is respectively connected to the left and right side plate bolts 13 of the two single-row four-wire bus ducts.

EXAMPLE III

As shown in fig. 5, unlike the single-row four-wire bus duct of the first embodiment, the single-row five-wire bus duct of the present embodiment further includes a PE conductor 5 disposed near the side plate 12, and the PE conductor 35 and the four conductors 2 are parallel to each other and arranged at intervals to form five wires to form a conductive row. Similarly, the PE conductor 5 and the four conductors 2 are also filled with a fire-resistant filler 4 so that they are separated from each other to have insulating and fire-resistant properties.

Example four

As shown in fig. 6, the double-row five-wire bus duct of the present embodiment is obtained by combining the single-row five-wire bus ducts of the third embodiment into a whole, the two single-row four-wire bus ducts share a middle partition 14, and the middle partition 14 is respectively connected to the left and right side plate bolts 13 of the two single-row four-wire bus ducts.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A waterproof and fireproof bus duct comprises a shell, a plurality of conductors, an insulating layer and a fireproof filler, wherein the conductors are arranged in the shell and are arranged in parallel at intervals; the shell comprises an upper cover plate, a lower cover plate, a left side plate and a right side plate, wherein the upper cover plate, the lower cover plate, the left side plate and the right side plate are connected through bolts; the method is characterized in that: the left side plate and the right side plate are provided with a side plate outer shell and a side plate inner shell, the side plate outer shell wraps the side plate inner shell, and a flow guide cavity is formed between the side plate outer shell and the side plate inner shell.

2. A waterproof and fire-resistant bus duct according to claim 1, wherein: the four corners of one side of the side plate shell, which is far away from the flow guide cavity, are inwards sunken to be provided with flow guide holes, and the flow guide holes are communicated with the flow guide cavity.

3. A waterproof and fire-resistant bus duct according to claim 1, wherein: the side plate inner shell is provided with a plurality of heat absorbing sheets.

4. A waterproof and fire-resistant bus duct according to claim 1, wherein: and the outer surface of the shell is provided with a fireproof coating.

5. A waterproof and fire-resistant bus duct according to claim 1, wherein: the mica paper or the mica tape is coated on the outer side of the insulating layer.

6. A waterproof and fire-resistant bus duct according to claim 1, wherein: the refractory filler is also filled between the conductor and the housing.