Steam heating roller dewatering device based on corrugated board production line

Abstract

This utility model discloses a steam-heated roller drainage device based on a corrugated cardboard production line, belonging to the field of corrugating machine technology. It includes a heated roller, with a drainage mechanism at one end. One end of the drainage mechanism extends axially into the interior of the heated roller, and a flow-guiding mechanism is provided inside the heated roller. The other end of the drainage mechanism is connected to a drain pipe. This utility model utilizes the aforementioned steam-heated roller drainage device based on a corrugated cardboard production line, leveraging both centrifugal force and gravity to quickly guide condensate to the heated roller shaft end, significantly shortening the condensate retention time, improving heat exchange efficiency, effectively preventing steam leakage, and ensuring system operational stability.

Description

Technical Field

[0001] This utility model belongs to the field of corrugating machine technology, specifically relating to a steam-heated roller dewatering device based on a corrugated cardboard production line. Background Technology

[0002] In industrial thermal energy equipment (such as steam-heated rollers and dryers), efficient condensate drainage is a key factor in improving thermal efficiency and system stability. Traditional hot roller condensate drainage systems typically employ gravity drainage or simple guide channel structures, with core components including inner wall guide channels, steam traps, and open drainage pipes.

[0003] However, existing technologies have the following significant drawbacks: traditional guide channels are mostly static structures, relying solely on gravity to guide condensate flow to the drain outlet, which cannot effectively accelerate the flow of condensate. The condensate has a long residence time on the inner wall of the hot roller, resulting in uneven temperature distribution on the roller surface and reduced heat transfer efficiency. Furthermore, condensate accumulation may cause localized overheating or corrosion, affecting equipment lifespan. During condensate discharge, steam easily escapes with the condensate into the drain pipe, causing heat loss.

[0004] Therefore, a new device is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a steam heating roller drainage device based on a corrugated cardboard production line. This device utilizes the combined effects of centrifugal force and gravity to quickly guide condensate to the end of the heated roller shaft, significantly shortening the condensate retention time, improving heat exchange efficiency, effectively preventing steam leakage, and ensuring the stability of system operation.

[0006] To achieve the above objectives, this utility model provides a steam-heated roller dewatering device based on a corrugated cardboard production line, including a hot roller, a dewatering mechanism at one end of the hot roller, one end of the dewatering mechanism extending into the interior of the hot roller along the axial direction of the hot roller, a flow guiding mechanism inside the hot roller, and the other end of the dewatering mechanism connected to a drain pipe.

[0007] Preferably, the flow guiding mechanism includes a flow guiding plate, which is spiral in shape and disposed inside the hot roller. An annular flow guiding groove is provided along the inner wall of the hot roller, and the width of the annular flow guiding groove matches the end of the flow guiding plate.

[0008] Preferably, a water collection trough is provided at the shaft end of the hot roller, the bottom of the water collection trough is an inclined surface, and a U-shaped drain pipe is provided at the bottom of the water collection trough.

[0009] Preferably, the drainage mechanism includes a siphon pipe, which is fixedly connected to the U-shaped drain pipe. An air release hole is provided at the top of the U-shaped bend formed by the U-shaped drain pipe. The other end of the siphon pipe is connected to the drain valve through a flange, and the outlet of the drain valve is fixedly connected to the drain pipe through a clamp.

[0010] Preferably, a hollow float is provided inside the siphon tube, the diameter of which matches the inner diameter of the siphon tube, and the float is connected to the valve disc via a second connecting rod.

[0011] Therefore, the present invention employs the aforementioned steam-heated roller dewatering device based on a corrugated cardboard production line, and compared with the prior art, the present invention has the following significant advantages:

[0012] (1) With the help of the centrifugal force of the spiral guide vane and the gravity of the inclined guide groove, the condensate is quickly guided to the shaft end, reducing the residence time in the hot roller.

[0013] (2) This utility model opens outward by centrifugal force changing with the rotation speed of the hot roller, realizing automatic matching between drainage flow rate and rotation speed, replacing the traditional sensor flow control, reducing system complexity and maintenance costs;

[0014] (3) This utility model adopts a double sealing design to prevent steam leakage.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the steam-heated roller dewatering device based on a corrugated cardboard production line according to this utility model.

[0017] Figure Labels

[0018] 1. Hot roller; 2. Flow guiding mechanism; 201. Flow guiding plate; 202. Water collection tank; 203. Flow guiding channel;

[0019] 3. Drainage mechanism; 301. Siphon tube; 302. Air release hole; 303. Drain valve; 304. Valve disc; 305. First connecting rod; 306. Float; 307. U-shaped drain pipe;

[0020] 4. Drain pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by those skilled in the art.

[0022] Example 1

[0023] like Figure 1 As shown, the steam-heated roller dewatering device based on a corrugated cardboard production line of this utility model includes a hot roller 1, a dewatering mechanism 3 is provided at one end of the hot roller 1, one end of the dewatering mechanism 3 extends into the interior of the hot roller 1 along the axial direction of the hot roller 1, a flow guiding mechanism 2 is provided inside the hot roller 1, and the other end of the dewatering mechanism 3 is connected to a drain pipe 4.

[0024] The flow guiding mechanism 2 includes a flow guiding plate 201, which is spiral-shaped and disposed inside the hot roller 1. An annular flow guiding groove 203 is provided along the inner wall of the hot roller 1, the width of which matches the end of the flow guiding plate 201, forming a continuous flow guiding channel. A water collecting trough 202 is provided at the shaft end of the hot roller 1, with an inclined bottom. A U-shaped drain pipe 307 is provided at the lowest point of the water collecting trough 202. When the hot roller 1 rotates, condensate flows along the flow guiding groove 203 to the U-shaped drain pipe 307 under gravity. The end of the U-shaped drain pipe 307 is connected to the drainage mechanism 3.

[0025] The drainage mechanism 3 includes a siphon pipe 301, which is fixedly connected to a U-shaped drain pipe 307. An air release hole 302 is provided at the top of the U-bend formed by the U-shaped drain pipe 307 to eliminate air resistance and prevent siphon interruption. A hollow float 306 is installed inside the siphon pipe 301, with a diameter matching the inner diameter of the siphon pipe 301. The float 306 is connected to a valve disc 304 via a first connecting rod 305. When the condensate level in the collection tank 202 rises, the float 306 experiences buoyancy, pushing the valve disc 304 upwards via the first connecting rod 305, opening the valve disc 304 and allowing condensate to flow smoothly into the siphon pipe 301. When the condensate level drops, the buoyancy on the float 306 decreases, and under gravity, the valve disc 304 automatically closes to prevent backflow of steam. The other end of the siphon pipe 301 is connected to the steam trap 303 via a flange, and the outlet of the steam trap 303 is fixed to the drain pipe 4 via a clamp.

[0026] During operation, as the corrugated cardboard production line runs, the heated roller 1 rotates continuously, and steam is constantly introduced into its interior. After condensation occurs inside the heated roller 1, it flows rapidly towards the water collection tank 202 at the shaft end of the heated roller 1 under the combined action of centrifugal force and gravity from the guiding mechanism 2. In the water collection tank 202, the condensation gathers and enters the siphon pipe 301 of the drainage mechanism 3 through the U-shaped drain pipe 307. The hollow float 306 in the siphon pipe 301 controls the opening and closing of the valve 304 according to changes in the condensation level, ensuring smooth discharge of condensation while preventing steam leakage. Finally, the condensation, further processed by the drain valve 303, is discharged from the system through the drain pipe 4. The entire process achieves efficient condensation discharge, improves heat exchange efficiency, and ensures the stable operation of the corrugated cardboard production line.

[0027] Therefore, this utility model adopts the above-mentioned steam heating roller drainage device based on corrugated cardboard production line. This device utilizes the dual action of centrifugal force and gravity to quickly guide condensate to the end of the heated roller shaft, significantly shortening the condensate residence time, improving heat exchange efficiency, effectively preventing steam leakage, and ensuring the stability of system operation.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A steam heated roll dewatering device based on a corrugated board production line, characterized in that, It includes a hot roller, one end of which is provided with a water-draining mechanism. One end of the water-draining mechanism extends into the interior of the hot roller along the axial direction of the hot roller. The interior of the hot roller is provided with a flow guiding mechanism. The other end of the water-draining mechanism is connected to a drain pipe.

2. The steam heating roller dewatering device based on a corrugated board production line according to claim 1, characterized in that, The flow guiding mechanism includes a flow guiding plate, which is spiral in shape and disposed inside the hot roller. An annular flow guiding groove is provided along the inner wall of the hot roller, and the width of the annular flow guiding groove matches the end of the flow guiding plate.

3. The steam-heated roller dewatering device based on a corrugated cardboard production line according to claim 2, characterized in that, The hot roller has a water collection trough at its shaft end, the bottom of which is an inclined surface, and a U-shaped drain pipe at the bottom.

4. The steam heating roller dewatering device based on a corrugated board production line according to claim 3, characterized in that, The drainage mechanism includes a siphon pipe, which is fixedly connected to the U-shaped drain pipe. An air release hole is provided at the top of the U-shaped bend formed by the U-shaped drain pipe. The other end of the siphon pipe is connected to the drain valve through a flange. The outlet of the drain valve is fixedly connected to the drain pipe through a clamp.

5. The steam heating roller dewatering device based on a corrugated board production line according to claim 4, characterized in that, A hollow float is installed inside the siphon tube, and the diameter of the float matches the inner diameter of the siphon tube. The float is connected to the valve disc through a second connecting rod.

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