Water-cooling blow-drying device for production of polyurethane thermal insulation pipe

Abstract

The utility model belongs to the technical field of polyurethane thermal insulation pipe production, and particularly discloses a water-cooling blow-drying device for polyurethane thermal insulation pipe production, which comprises a cooling box and a roller type conveying belt, and the roller type conveying belt penetrates through preformed holes on two sides of the cooling box and is positioned inside the cooling box. The top end of the cooling box is fixedly connected with a spraying mechanism, the lower side of the cooling box is fixedly connected with a liquid discharging pipeline, a left preformed hole of the cooling box is fixedly connected with a feeding channel, a right preformed hole of the cooling box is fixedly connected with a blow-drying bin, the bottom of the feeding channel is fixedly connected with a gas collecting hood, the gas collecting hood is communicated with an air supply mechanism, and the output end of the air supply mechanism is communicated with the bottom of the blow-drying bin. Through the arrangement of the gas collecting hood, the air blower and the feeding channel, part of heat of the heat preservation pipe can be taken away when air in the feeding channel flows, and the volatilization speed of water drops attached to the cooled polyurethane heat preservation pipe can be further increased through hot air blowing of the air blower; and the waste heat is utilized to reduce energy waste, and meanwhile, the efficiency of blow-drying operation is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyurethane insulation pipe production, and specifically relates to a water-cooling and air-drying device for polyurethane insulation pipe production. Background Technique

[0002] A polyurethane insulation pipe is a product used for pipeline insulation. It usually consists of an inner shell pipe (anti-seepage steel pipe), an insulation layer (polyurethane), and an outer protection pipe (polyethylene pipe). Polyurethane is widely used in insulation pipes because of its excellent heat insulation performance, excellent waterproof and moisture-proof performance, and light weight, which is easy to install. Polyurethane insulation pipes are usually used in fields such as construction, heating, ventilation, and air conditioning, and thermal pipelines. During the production process of polyurethane insulation pipes, after the insulation layer is cured, it is necessary to cool the produced polyurethane insulation pipes. At present, mild cooling methods such as spraying water cooling and natural wind cooling are mostly used to cool the polyurethane insulation pipes. After using the spraying water cooling method for cooling, it is necessary to blow dry the water on the cooled polyurethane insulation pipes. However, the existing water-cooling and air-drying devices do not utilize the heat of the polyurethane insulation pipes before cooling, resulting in a certain amount of energy waste. Therefore, it is necessary to design a water-cooling and air-drying device for polyurethane insulation pipe production that can utilize waste heat. Content of the Utility Model

[0003] Aiming at the above technical problems, the utility model provides a water-cooling and air-drying device for polyurethane insulation pipe production that can utilize waste heat.

[0004] To solve the above technical problems, the technical solution of the utility model is: a water-cooling and air-drying device for polyurethane insulation pipe production, including a cooling box and a roller conveyor belt. A spraying mechanism is fixedly connected to the top end of the cooling box, and a liquid discharge pipeline is fixedly connected to the lower side. Reserved holes are opened on both the left and right sides of the cooling box. A feeding channel is fixedly connected to the left reserved hole of the cooling box, and a drying chamber is fixedly connected to the right reserved hole. The roller conveyor belt penetrates through the feeding channel, the cooling box, and the drying chamber. A gas collecting hood is fixedly connected to the bottom of the feeding channel, and the lower end of the gas collecting hood is connected to a blowing mechanism through an air conveying pipeline. The output end of the blowing mechanism is communicated with the bottom of the drying chamber.

[0005] Further, the spraying mechanism includes a liquid supply pipeline and a spray head. The liquid supply pipeline is fixedly connected to the upper side of the cooling box through a fixing ring, and the spray head is arranged on the upper side inside the cooling box and is communicated with the liquid supply pipeline.

[0006] Further, the blowing mechanism includes a blower and a gas diffusing plate. The blower is fixedly connected to the outside of the cooling box through a mounting seat. The input end of the blower is fixedly connected to the air conveying pipeline, and the gas diffusing plate is fixedly connected to the inner bottom wall of the drying chamber. The input end of the gas diffusing plate is communicated with the output end of the blower.

[0007] Furthermore, a plurality of air outlet through holes are formed in the top of the drying bin.

[0008] Furthermore, four support seats are fixedly connected to the bottom of the cooling box.

[0009] The utility model has the following advantages compared with the prior art:

[0010] In the utility model, an air collecting hood is arranged below the feeding channel. The air collecting hood is communicated with the input end of a blower through an air conveying pipeline. The blower continuously sucks air from the feeding channel and conveys it into the drying bin. When the air in the feeding channel flows, part of the heat of the polyurethane heat-insulating pipe that has not been cooled in the feeding channel can be taken away, so that the air blown out by the blower is at a higher temperature than the natural wind. The hot air blowing can further accelerate the volatilization speed of the water droplets attached to the cooled polyurethane heat-insulating pipe, reducing energy waste by using waste heat while improving the efficiency of the drying operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the utility model.

[0012] In the figure: 1, cooling box; 2, roller conveyor belt; 3, spraying mechanism, 31, liquid supply pipeline, 32, spray head; 4, drying bin; 5, feeding channel; 6, air collecting hood; 7, air conveying pipeline; 8, air supply mechanism, 81, blower, 82, air diffusing plate; 9, liquid discharge pipeline; 10, fixing ring; 11, mounting seat; 12, air outlet through hole; 13, support seat; 14, polyurethane heat-insulating pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following will further illustrate the utility model with reference to the accompanying drawings.

[0014] As Figure 1 shown, a water-cooling and drying device for producing polyurethane heat-insulating pipes includes a cooling box 1 and a roller conveyor belt 2. A spraying mechanism 3 is fixedly connected to the top end of the cooling box 1, and a liquid discharge pipeline 9 is fixedly connected to the lower side. The liquid discharge pipeline 9 discharges the hot water in the cooling box 1 and flows it to the cooling pool. Reserved holes are formed in both the left and right sides of the cooling box 1. A feeding channel 5 is fixedly connected to the reserved hole on the left side of the cooling box 1, and a drying bin 4 is fixedly connected to the reserved hole on the right side. The roller conveyor belt 2 sequentially passes through the feeding channel 5, the cooling box 1, and the drying bin 4. An air collecting hood 6 is fixedly connected to the bottom of the feeding channel 5. The upper part of the air collecting hood 6 is communicated with the lower part of the feeding channel 5. The lower end of the air collecting hood 6 is communicated with an air supply mechanism 8 through an air conveying pipeline 7. The output end of the air supply mechanism 8 is communicated with the bottom of the drying bin 4.

[0015] In order to use cold water to reduce the temperature of the polyurethane insulation pipe 14, the spraying mechanism 3 includes a liquid supply pipe 31 and a spray head 32. The input end of the liquid supply pipe 31 is connected to the cold water source, and the cold water source provides sufficient water pressure for the spraying mechanism 3. The liquid supply pipe 31 is fixedly connected to the upper side of the cooling box 1 through a fixing ring 10. The spray head 32 is arranged on the upper side inside the cooling box 1 and is connected to the liquid supply pipe 31. The spray head 32 is installed downward and is located directly above the roller conveyor belt 2.

[0016] In order to quickly dry the water droplets adhering to the polyurethane insulation pipe 14 cooled by the cooling box 1, the air supply mechanism 8 includes a blower 81 and a gas diffusing plate 82. The blower 81 is fixedly connected to the outside of the cooling box 1 through a mounting seat 11. The input end of the blower 81 is fixedly connected to the air delivery pipe 7. The gas diffusing plate 82 is fixedly connected to the inner bottom wall of the drying chamber 4. The input end of the gas diffusing plate 82 is connected to the output end of the blower 81.

[0017] In order to increase the opening for the water vapor to discharge from the drying chamber 4, a plurality of air outlet through holes 12 are opened at the top of the drying chamber 4.

[0018] In order to support the overall stability of the device and the lifting device, four support seats 13 are fixedly connected to the bottom of the cooling box 1.

[0019] The specific working process of the present utility model is as follows:

[0020] The polyurethane insulation pipe 14 after curing treatment is conveyed into the device through the roller conveyor belt 2, and successively passes through the feeding channel 5, the cooling box 1, and the drying chamber 4. The liquid supply pipe 31 supplies liquid to the spray head 32, and the spray head 32 continuously sprays liquid downward to cool the polyurethane insulation pipe 14 below. When the polyurethane insulation pipe 14 enters the feeding channel 5, the air sucked by the blower 81 enters from the side opening of the feeding channel 5 to absorb and carry part of the heat of the polyurethane insulation pipe 14, and successively passes through the air collecting hood 6, the air delivery pipe 7, and the blower 81, and finally is conveyed into the gas diffusing plate 82 to disperse the air flow and then enters the drying chamber 4 to blow the polyurethane insulation pipe 14 that has been spray-cooled in the drying chamber 4, accelerating the evaporation speed of the water droplets adhering to the polyurethane insulation pipe 14. After the drying operation is completed, the polyurethane insulation pipe 14 is conveyed out of the device by the roller conveyor belt 2 and enters the next process.

Claims

1. A water-cooled drying device for the production of polyurethane insulation pipes, comprising a cooling box (1) and a roller conveyor belt (2), wherein the top of the cooling box (1) is fixedly connected to a spray mechanism (3), and the bottom is fixedly connected to a drainage pipe (9), characterized in that: The cooling box (1) is provided with reserved holes on both sides. A feed channel (5) is fixedly connected to the reserved hole on the left side of the cooling box (1), and a blow-drying bin (4) is fixedly connected to the reserved hole on the right side. The roller conveyor belt (2) passes through the feed channel (5), the cooling box (1), and the blow-drying bin (4). An air collecting hood (6) is fixedly connected to the bottom of the feed channel (5). The lower end of the air collecting hood (6) is connected to an air supply mechanism (8) through an air supply pipeline (7). The output end of the air supply mechanism (8) is connected to the bottom of the blow-drying bin (4).

2. The water-cooled drying device for the production of polyurethane thermal insulation pipes according to claim 1 is characterized in that: The spray mechanism (3) comprises a liquid supply pipe (31) and a spray head (32); the liquid supply pipe (31) is fixedly connected to the upper side of the cooling box (1) via a fixing ring (10); the spray head (32) is arranged on the upper side of the cooling box (1) and is in communication with the liquid supply pipe (31).

3. The water-cooled drying device for the production of polyurethane thermal insulation pipes according to claim 1 is characterized in that: The air supply mechanism (8) comprises a blower (81) and an air diffuser (82); the blower (81) is fixedly connected to the outside of the cooling box (1) via a mounting seat (11); an input end of the blower (81) is fixedly connected to the air supply pipeline (7); the air diffuser (82) is fixedly connected to the inner bottom wall of the drying chamber (4); and the input end of the air diffuser (82) is in communication with an output end of the blower (81).

4. The water-cooled drying device for the production of polyurethane thermal insulation pipes according to claim 1 is characterized in that: The top of the drying bin (4) is provided with a plurality of air outlet holes (12).

5. The water-cooled drying device for the production of polyurethane thermal insulation pipes according to claim 1 is characterized in that: Four support seats (13) are fixedly connected to the bottom of the cooling box (1).

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