CN2287347Y

CN2287347Y - Dual thermal insulation assembled fire-insistant cable pallet

Info

Publication number: CN2287347Y
Application number: CN97218702U
Authority: CN
Inventors: 钟江晖
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-10
Filing date: 1997-06-10
Publication date: 1998-08-05
Anticipated expiration: 2007-06-10

Abstract

The utility model discloses a thermal insulation assembled fire-resistant cable pallet with double layers, which can protect cables by making use of the principle of thermal insulation of each layer to decrease the fire temperature. The lateral plates of the pallet are composed of metal elements and two layers of inorganic composite materials and the bearing board of the pallet is composed of rectangular steel and two layers of inorganic composite materials. The pallet is also provided with a base board and a star-shaped cover plate. The outside of the pallet is coated with expanding fire-proof paint and the two layers of inorganic composite materials are all provided with air heat insulation layers. Both the two lateral plates are provided with ventilation heat radiation net covers. The pallet can carry out ventilation and heat radiation when normally working and can isolate heat with a plurality of layers when a fire hazard occurs so as to have the effect on protecting cables.

Description

Double-deck adiabatic assembly type fire-resisting cable pallet

The utility model relates to a kind of common cable with assembly type fire-resisting cable pallet, belongs to the cable fire-proof technical field, is applicable to the usefulness of industrial and mining enterprises such as generating, distribution, oil, chemical industry and skyscraper.

The electrical fire accident is often owing to the fire propagation cable causes the blasting fuse effect, cause the condition of a disaster to worsen, the loss aggravation, this is of common occurrence at home and abroad, and because the accident that outside burning things which may cause a fire disaster burning cable causes has surpassed 1/2nd of cable spontaneous combustion that ageing of insulation own causes.Therefore, the cable fire-proof problem causes the concern of countries in the world already, closes the active research precautionary measures, with the minimizing accident.The countermeasure that prevents the ordinary group ignition of cable is in the prior art divided two big classes substantially:

1. all cable all is coated with fireproof paint

2. adopt the fire-resisting cable pallet

Every on colony's cable is all protected with fireproof paint; on technology, be difficult to protect its coating quality; therefore flameproof effect is difficult to just protecting; in addition; because coefficient of linear expansion differs bigger when cable operation itself and inoperative; cause easily the fireproof paint that is attached to cable insulation owing to cold and hot differ to produce peel off, must running check and maintenance, so this fire prevention means tend to superseded gradually.

The fire-resisting cable pallet generally is to be shell with the steel plate, in establish the tectonic type that thermal insulation board or cushion block combine.But this veriety consumes steel in a large number, cause to cost an arm and a leg, and the construction investment height, its maximum defective is: occupy that the space is big, transportation inconvenience, carry freight charges near cost at a distance, be unfavorable for backwoodsman promoting the use of.

So far for this reason, yet there are no the assembly type fire-resisting cable pallet that occurs with assembly form.

The purpose of this utility model provides four of a kind of usefulness and independently has the double-deck adiabatic assembly type fire-resisting cable pallet that the heat radiation guard constitutes in the both sides that assemble of member.It has multilayer insulation, can protect cable in fire, has concurrently again simultaneously to have good ventilation and heat condition when operate as normal; to reduce influence to current-carrying capacity of cable; and it is few to consume steel, reduces manufacturing cost and cost of transportation, and in light weight, easy for installation, advantage such as price is low.

The purpose of this utility model is achieved in that double-deck adiabatic assembly type fire-resisting cable pallet is by hardware, inorganic composite materials and sheet metal base plate, cover plate constitutes, and it is characterized in that: its side plate and supporting plate assemble by hardware and double-deck inorganic composite materials, and its section is Shape, biside plate are dashed every 250 millimeters to be had the ventilation hole of 50 millimeters of Φ 30～Φ and is furnished with the heat radiation guard, and the outside of biside plate and the equal coated expanding fire-proof paint of heat radiation guard all leave air heat-insulation layer between the composite material of side plate and supporting plate,

Cover plate is stamped on the top of shape groove, and the bottom is furnished with The shape sheet metal, its outside side coated expanding fire-proof paint.

Biside plate is all formed with the inorganic composite materials and the hardware of 4 millimeters thick, and the top of side plate and bottom are pressed into by 1 millimeter sheet metal

Shape,

Interior the dashing every suitable distance of the groove of shape has circular connection holes, is so that with M6 bolt and swivel nut inorganic composite materials is constituted plate

Shape.

The both sides axis direction of shape dashes every 250 millimeters has 14 * 20 millimeters rectangle square hole to connect used with side plate as supporting plate.

Supporting plate is by 5 millimeters double-deck inorganic clad plates and 14 * 20 millimeters, and the steel rectangular tube of 1 millimeters thick and bolt constitute, and 24 millimeters of supporting plate width are all stretched out at the two ends of rectangular tube, 6.5 millimeters circular holes are set in order to fix with side plate at 24 millimeters center.

Base plate constitutes with 1～1.5 millimeter sheet metal, and its section is Shape constitutes two layer of air heat insulation layers with the side plate supporting plate at trench bottom, the outside coated expanding fire-proof paint of base plate.

Cover plate adopts the sheet metal of 1 millimeters thick and is pressed into curvature of the spinal column decorative pattern, and its section is Shape.

The ventilation hole of two layers of heat insulation inorganic clad plate of side plate all is arranged to

Shape, the heat radiation guard is corresponding mutually, and can make wire hole and use when the need outgoing cable.

Heat-barrier material is that mineral binder hond and glass fibre are composited.

Fireproof paint is that G60-GD adds an amount of enhanced foaming agent of MG, and its coating layer thickness is 0.5～0.7 millimeter, and expansion ratio doubles than general G60-GD expansion coating.

The utility model adopts the multilayer insulation layer to play the method for effect of heat insulation simultaneously, has reached the purpose of protecting cable preferably.

Below in conjunction with drawings and Examples the utility model is described.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model section of structure.

Fig. 3 dispel the heat for the utility model structure the has side plate of guard and the assembly drawing of double thermal insulation supporting plate.

Fig. 4 is the utility model structure supporting plate view.

Fig. 5 is the utility model structure side plate view.

Fig. 6 is the utility model curvature of the spinal column formula cover plate view.

Fig. 7 is the utility model structural metal frame view.

Fig. 8 is the utility model structure heat radiation guard view.

Constitute by side plate (1) double thermal insulation supporting plate (2) base plate (3) curvature of the spinal column formula cover plate (4) that has the guard that dispels the heat referring to figs. 1 through Fig. 8 the utility model.The side plate (1) that has a guard that dispels the heat by two inorganic composite materials with metal framework (5) and M6 bolt (6) and swivel nut (7) and heat radiation guard (8) are formed up and down, air layer is 20 millimeters in the middle of it, the heat radiation guard is uniform with 250 millimeters, plays the wire hole effect when the needs cable is drawn.

Double thermal insulation supporting plate (2) is made of double-deck 5 millimeters thick inorganic composite materials and l4 millimeter * 20 millimeter rectangular tubes (9), bolt (10), 24 millimeters of supporting plate width are respectively stretched out at the rectangular tube two ends, and respectively bore 6.5 millimeters circular holes at 24 millimeters center, constitute cell bodies in order to 6 millimeters Bolt Connection with side plate.

Base plate (3) constitutes its section with 1～1.5 millimeter sheet metal and is

Shape, its bottom coated fire prevention expansion coating.

Cover plate (4) adopts 1.0 millimeters thick sheet metals to be pressed into curvature of the spinal column reinforcement decorative pattern, and its section is Shape.Cover plate connects to constitute box body with hasp (11) with side plate.

For illustrating the advantage of this new construction, the below effect of summary each parts when fire.

When the adiabatic assembly type fire-resisting cable of bilayer pallet when being subjected to fire action, flame at first acts on the outside of pallet.Because outside all coated expanding fire-proof paints (comprising the heat radiation guard) of pallet, expansion coating are owing to the expanded by heating foaming, its foaming thickness is about 50 millimeter, and the ventilation hole of the guard that dispels the heat this moment blocks up exhausted flame rapidly.When the temperature of ambient temperature (fire heating curve) outside inorganic clad plate during at 950 ℃ ± 50 ℃ about about 230 ℃, because inside and outside two-layer inorganic composite materials and air layer are about 20 millimeters.So temperature transfer is slow, and inboard inorganic composite materials is because the conductive coefficient plate is little, so can reach good effect of heat insulation.The bottom is subjected to the most acute one side of fire often, owing to be provided with two layer of air thermal insulation layers, thereby guaranteed the unlikely destruction of cable insulation and can keep 1 hour normal power-up.

Double-deck adiabatic assembly type fire-resisting cable pallet, owing to be designed to assembly type, thus transportation, shipment, installation are brought the big convenience of plate.Thereby and saved steel in large quantities and reduced manufacturing cost, be convenient to engineering and promote the use of.

This double-deck adiabatic assembly type fire-resisting cable pallet reaches fire-resistant category-A standard by relevant test examination, will bring more excellent economic benefit and social benefit after the enforcement.

Claims

1. double-deck adiabatic assembly type fire-resisting cable pallet reaches sheet metal base plate, cover plate formation by hardware, inorganic composite materials, and it is characterized in that: its side plate and supporting plate assemble by hardware and double-deck inorganic composite materials, and its section is Shape, biside plate are dashed every 250 millimeters to be had the ventilation hole of 50 millimeters of Φ 30～Φ and is furnished with the heat radiation guard, and the outside of biside plate and the equal coated fire-proof dilatation of heat radiation guard all leave air heat-insulation layer between the composite material of side plate and supporting plate,

2. the adiabatic assembly type fire-resisting cable of bilayer according to claim 1 pallet is characterized in that biside plate all with the inorganic composite materials and the hardware composition of 4 millimeters thick, and the top of side plate and bottom are pressed into by 1 millimeter sheet metal

Shape, Interior the dashing every suitable distance of the groove of shape has circular connection holes, is so that with M6 bolt and swivel nut inorganic composite materials is constituted plate Shape,

3. the adiabatic assembly type fire-resisting cable of bilayer according to claim 1 pallet, it is characterized in that supporting plate is made of the steel rectangular tube and the bolt of 5 millimeters double-deck inorganic clad plates and 14 * 20 millimeters, 1 millimeters thick, 24 millimeters of supporting plate width are all stretched out at the two ends of rectangular tube, at 24 millimeters center 6.5 millimeters circular holes are set, in order to fix with side plate.

4. the adiabatic assembly type fire-resisting cable of bilayer according to claim 1 pallet is characterized in that base plate is pressed into the steel plate of 1 millimeters thick Shape constitutes with side plate, supporting plate

Shape constitutes two layer of air heat insulation layers at trench bottom, the outside coated expanding fire-proof paint of base plate.

5. the adiabatic assembly type fire-resisting cable of bilayer according to claim 1 pallet is characterized in that cover plate adopts the sheet metal of 1 millimeters thick and is pressed into curvature of the spinal column decorative pattern, and its section is Shape.

6. the adiabatic assembly type fire-resisting cable of bilayer according to claim 1 pallet is characterized in that the ventilation hole of two layers of heat insulation inorganic clad plate of side plate all is arranged to

Shape, the heat radiation guard is corresponding mutually.

7. the adiabatic assembly type fire-resisting cable of bilayer according to claim 1 pallet is characterized in that heat-barrier material is that mineral binder hond and glass fibre are composited.

8. the adiabatic assembly type fire-resisting cable of bilayer according to claim 1 pallet is characterized in that fireproof paint is that G60-GD adds an amount of enhanced foaming agent of MG, and its coating layer thickness is 0.5～0.7 millimeter, and expansion ratio doubles than general G60-GD expansion coating.