CN-224214975-U - Industrial heat-insulating air pipe with air layer

Abstract

The utility model discloses an industrial heat-insulating air pipe with an air layer, which comprises an air pipe substrate, outer heat-insulating plates, L-shaped baffle plates and keels, wherein a flange of the air pipe substrate is connected with corner brackets through bolts and blocks the L-shaped baffle plates at four corners, the outer heat-insulating plates are arranged at the two inner sides of the L-shaped baffle plates, the keels are arranged between each outer heat-insulating plate and the outer side of the air pipe substrate, the cross section of the keel main body is U-shaped, the main back surfaces of the keels are tightly adhered to the outer heat-insulating plates, and the side walls of the keels are propped against the air pipe substrate.

Inventors

• TANG ZHENGQUAN
• TANG QIGANG

Assignees

• 汤发暖通新材料(浙江)有限公司

Dates

Publication Date

20260508

Application Date

20250411

Claims (6)

1. 1. The industrial heat-insulating air pipe with the air layer comprises an air pipe base body (1), outer heat-insulating plates (3), L-shaped baffle plates (4) and keels (5), wherein a flange (2) of the air pipe base body (1) is connected with corner joint bolts and is used for blocking the L-shaped baffle plates (4) at four corners, the outer heat-insulating plates (3) are arranged on the two inner sides of the L-shaped baffle plates (4), the keel (5) is arranged between each outer heat-insulating plate (3) and the outer side of the air pipe base body (1), the cross section of the main body of the keel (5) is U-shaped, the main back surface (51) of the keel (5) is tightly attached to the outer heat-insulating plates (3), and the side walls of the keels (5) are propped against the air pipe base body (1).
2. 2. An industrial insulated air duct with air layer according to claim 1, characterized in that the two sides of the keel (5) are bent inwards to form contact surfaces (52) and are tightly attached to the air duct base body (1).
3. 3. An industrial insulating air duct with air layer according to claim 1, characterized in that the L-shaped baffle (4) is fixedly connected with the main back (51) of the keel (5) by means of a bolt nut or a rivet nut.
4. 4. An industrial insulated ductwork with air layer according to claim 1, characterized in that the outer side of the keel (5) is in contact with the flange (2) of the ductwork base (1).
5. 5. An industrial insulating air duct with air layer according to claim 4, wherein the two sides of the keel (5) are spaced apart by heat dissipation holes to enhance the heat dissipation.
6. 6. An industrial insulated ductwork with air layer according to claim 4, characterized in that adjacent keels (5) are welded and fixed.

Description

Industrial heat-insulating air pipe with air layer Technical Field The utility model relates to the technical field of industrial air pipes, in particular to an industrial heat-insulating air pipe with an air layer. Background The flange of the air pipe base body is fixed with the corner brackets, the corner brackets press the L-shaped baffle plates at the four corners, two layers of fireproof heat insulation boards are covered on the outer side of the air pipe base body and are pressed by the L-shaped baffle plates, and then the air pipe is fastened by screws. Most of the existing air pipes suitable for short-time fireproof heat insulation are still made of double-layer fireproof materials, and especially for the standard within 30 minutes, the existing industrial heat insulation air pipes are not suitable for the scene in terms of materials, cost and weight. Therefore, the industrial heat-insulating air pipe with the air layer is designed to be light. In addition, the existing L-shaped baffle fastening mode is that one is that a screw is driven into a fireproof heat-insulating material and is easy to loosen, and the other is that the screw is directly driven into an air pipe base body through a bolt, so that the inner wall is uneven. Disclosure of utility model According to the problems of the prior art, the present utility model provides an industrial heat insulation wind with an air layer, which aims to solve the above problems. The industrial heat-insulating air pipe comprises an air pipe base body, outer heat-insulating plates, L-shaped baffle plates and keels, wherein flanges of the air pipe base body are connected with corner code bolts and block the L-shaped baffle plates at four corners, the outer heat-insulating plates are arranged on the two inner sides of the L-shaped baffle plates, keels are arranged between each outer heat-insulating plate and the outer side of the air pipe base body, the cross section of the keel body is U-shaped, the main back surfaces of the keels are tightly attached to the outer heat-insulating plates, and the side walls of the keels are propped against the air pipe base body. Preferably, the two sides of the keel are inwards bent to form a contact surface and are tightly attached to the air duct base body. Preferably, the L-shaped baffle is fixedly connected with the main back surface of the keel through a bolt nut or a rivet nut. Preferably, the upper side surface of the keel is contacted with the flange of the air pipe base body. Preferably, the two side surfaces of the keel are provided with heat dissipation holes at intervals, so that the heat dissipation capacity of the keel is improved. Preferably, adjacent keels are welded and fixed. The utility model has the beneficial effects of reducing the use of fireproof materials, reducing the overall weight, enabling an air layer to be formed between the air duct base body and the outer layer heat insulation plate, and being suitable for standard fireproof heat insulation air ducts within 30 minutes in short time. And simultaneously, a fixing structure is formed by using the keels. Drawings Fig. 1 is a schematic structural view of the present utility model. FIG. 2 is a schematic view of the connection of the air duct base and the corner connector bolts according to the present utility model. Fig. 3 is a schematic view 1 of the structure of the keel of the utility model. Fig. 4 is a schematic view of the structure of the keel of the utility model 2. Detailed Description Referring to fig. 1-4, the utility model provides a technical scheme that an industrial heat insulation air pipe with an air layer comprises an air pipe base body 1, outer heat insulation plates 3, L-shaped baffle plates 4 and keels 5, wherein a flange 2 of the air pipe base body 1 is connected with corner code bolts and is used for blocking the L-shaped baffle plates 4 at four corners, the outer heat insulation plates 3 are arranged at the two inner sides of the L-shaped baffle plates 4, keels 5 are arranged between each outer heat insulation plate 3 and the outer side of the air pipe base body 1, the cross section of a main body of each keel 5 is U-shaped, the main back surfaces 51 of the keels 5 are tightly attached to the outer heat insulation plates 3, and the side walls of the keels 5 are propped against the air pipe base body 1. The utility model reduces the use of fireproof materials, and the whole weight is lightened, so that an air layer is formed between the air pipe base body and the outer layer heat insulation plate, and the utility model is applicable to standard fireproof heat insulation air pipes within 30 minutes in a short time. The heat insulation plate with the interlayer is replaced by the keel, the firmness of the connection structure is improved, the two side faces of the keel 5 are inwards bent to form contact faces 52 and are tightly adhered to the air duct base body 1, the firmness is improved, the L-shaped baffle 4 is fixedly conn