Pipe outer wall water removal device

Abstract

The utility model relates to a pipe outer wall dewatering device which comprises a dewatering pipe, two elastic ring plates and a vacuum assembly, and the dewatering pipe is provided with a channel matched with the outer diameter of a pipe so that the pipe can penetrate through the channel; the two elastic ring plates are fixedly arranged at the two ends of the water removal pipe correspondingly, and the inner diameter of each elastic ring plate is smaller than the inner diameter of the water removal pipe and the outer diameter of a pipe. The vacuum assembly is provided with a vacuum end communicated with a channel in the water removal pipe; a pipe to be dewatered penetrates through a channel in the water removal pipe, the vacuum assembly is started, negative pressure is formed between the inner wall of the water removal pipe and the outer wall of the pipe, and under the action of the negative pressure, the two elastic annular plates deform towards the interior of the channel and abut against the outer wall of the pipe in a sliding mode; the elastic ring plate located at one end of the feeding port of the water removal pipe can primarily scrape water drops on the outer wall of the pipe in the process that the pipe penetrates through the discharging port of the water removal pipe, the elastic ring plate located at one end of the discharging port of the water removal pipe can secondarily scrape water drops on the outer wall of the pipe in the process that the pipe penetrates through the discharging port of the water removal pipe, and scraped water is pumped away through the vacuum end.

Description

Technical Field

[0001] This utility model relates to the field of pipe manufacturing technology, and in particular to a pipe outer wall dewatering device. Background Technology

[0002] After extrusion, plastic pipes need to be shaped by a spray cooling system. After cooling, a large number of water droplets adhere to the surface of the pipes. If not treated, this will affect the subsequent processing of the pipes. A special water removal device can be used to remove the water droplets from the surface of the pipes.

[0003] For example, the utility model patent with application number CN202120934714.5 proposes a vacuum suction pipe surface dehydration device, in which the pipe enters from the inlet of the soaking water tank for cooling and finally comes out from the vacuum ring. At this time, the vacuum ring has a vacuum suction force acting on the surface of the pipe. The cooling water attached to the surface of the pipe enters the vacuum box along the PU hose air pipe through the vacuum suction force of the vacuum ring, and the water droplets on the surface of the pipe are fully eliminated.

[0004] However, its single-stage vacuum dewatering method cannot ensure that all water droplets are removed from the pipe surface, resulting in low reliability of dewatering. Utility Model Content

[0005] In view of this, it is necessary to provide a pipe external wall dewatering device to solve the problem that a single dewatering operation is not enough to ensure that water droplets are completely removed from the pipe surface and that the dewatering reliability is low.

[0006] This utility model provides a pipe outer wall dewatering device, including a dewatering pipe, two elastic ring plates, and a vacuum assembly. The dewatering pipe has a channel adapted to the outer diameter of the pipe so that the pipe can pass through the channel. The two elastic ring plates are respectively fixed at both ends of the dewatering pipe. The inner diameter of the elastic ring plates is smaller than the inner diameter of the dewatering pipe and the outer diameter of the pipe. The elastic ring plates are configured such that their inner rings can deform toward the inside of the channel under negative pressure to scrape water off the outer wall of the dewatering pipe. The vacuum assembly has a vacuum end communicating with the channel inside the dewatering pipe to generate negative pressure in the channel.

[0007] Furthermore, the water removal device also includes an elastic wiper blade that extends in a spiral direction and is disposed on the inner wall of the water removal pipe. The distance from the elastic wiper blade to the central axis of the water removal pipe is less than the radius of the pipe.

[0008] Furthermore, one end of the elastic wiper blade near the feed inlet of the dewatering pipe is located on the inner top wall of the dewatering pipe, and the other end of the elastic wiper blade extends to the discharge outlet of the dewatering pipe.

[0009] Furthermore, the number of threads on the elastic wiper blade is no more than 0.5 turns, and there are two elastic wiper blades, which are arranged opposite each other on the inner walls of the drain pipe.

[0010] Furthermore, a drain hole is provided at the bottom of the dewatering pipe near its discharge end, and the vacuum end of the vacuum assembly is connected to the drain hole.

[0011] Furthermore, the dewatering device also includes two pressure rings and multiple connecting screws. The two pressure rings are coaxially abutted against the opposite sides of the two elastic ring plates. The inner diameter of the two pressure rings is larger than the outer diameter of the pipe. A portion of the connecting screws pass through one of the pressure rings and one of the elastic ring plates and are connected to one end of the dewatering pipe. Another portion of the connecting screws pass through the other pressure ring and the other elastic ring plate and are connected to the other end of the dewatering pipe.

[0012] Furthermore, an arc-shaped groove is formed on the inner wall of the water removal pipe, and the elastic scraper is embedded in the arc-shaped groove.

[0013] Furthermore, the vacuum assembly includes a vacuum pump and a drain pipe, with the vacuum end of the vacuum pump connected to the channel of the dewatering pipe via the drain pipe.

[0014] Furthermore, the vacuum assembly also includes a water tank and a horizontal pipe. The top end of the drain pipe is connected to the channel of the water removal pipe, the bottom end of the drain pipe is connected to the water tank, one end of the horizontal pipe is connected to the side wall of the drain pipe, and the other end of the horizontal pipe is connected to the vacuum end of the vacuum pump.

[0015] Furthermore, the horizontal pipe is inclined, and the downward inclined end of the horizontal pipe is connected to the drain pipe.

[0016] Compared with existing technologies, this method involves passing the pipe to be dewatered through the inner channel of the dewatering pipe and activating the vacuum assembly. This creates a negative pressure between the inner wall of the dewatering pipe and the outer wall of the pipe. Under this negative pressure, two elastic ring plates deform inward and slide against the outer wall of the pipe. The elastic ring plate at the inlet end of the dewatering pipe can initially scrape away water droplets from the outer wall of the pipe. As the pipe passes through the outlet end of the dewatering pipe, the elastic ring plate at the outlet end can scrape away water droplets from the outer wall of the pipe a second time. The scraped water is then pumped away through the vacuum end. Therefore, compared with single-stage vacuum dewatering, the dewatering method in this application has higher reliability and removes water droplets more thoroughly. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the pipe outer wall dewatering device provided in this embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the pipe passing through the dewatering pipe in the pipe outer wall dewatering device provided in this embodiment of the utility model;

[0019] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of two elastic scraper strips in the pipe outer wall dewatering device provided in this embodiment of the utility model. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figure 1-3 As shown, this utility model provides a pipe outer wall dewatering device, which is located on one side of a spray cooling system and connected to the spray cooling system. The spray-cooled pipe body can enter the pipe outer wall dewatering device. The spray cooling system is used to cool and shape the extruded pipe. The pipe outer wall dewatering device includes a dewatering pipe 100, two elastic ring plates 200, and a vacuum assembly 300. The dewatering pipe 100 has a channel adapted to the outer diameter of the pipe M, allowing the pipe M to pass through the channel. The two elastic ring plates 200 are respectively fixedly installed on the dewatering pipe... At both ends of the pipe 100, the inner diameter of the elastic ring plate 200 is smaller than the inner diameter of the dewatering pipe 100 and the outer diameter of the pipe M. The elastic ring plate 200 can be inserted into the inner hole of each elastic ring plate 200. When the pipe M is inserted into the inner hole of two elastic ring plates 200, the elastic ring plate 200 is configured such that its inner ring can deform toward the inside of the channel under negative pressure to wrap the pipe wall of the pipe M, so as to scrape the water on the outer wall of the dewatering pipe 100. The vacuum assembly 300 has a vacuum end that communicates with the inner channel of the dewatering pipe 100, which is used to generate negative pressure in the channel.

[0023] In this process, the pipe M to be dewatered passes through the inner channel of the dewatering pipe 100, and the vacuum assembly 300 is activated, creating a negative pressure between the inner wall of the dewatering pipe 100 and the outer wall of the pipe M. Under the action of the negative pressure, two elastic ring plates 200 deform toward the inside of the channel and slide against the outer wall of the pipe M. The elastic ring plate 200 at the inlet end of the dewatering pipe 100 can initially scrape off the water droplets on the outer wall of the pipe M. As the pipe M passes through the outlet end of the dewatering pipe 100, the elastic ring plate 200 at the outlet end of the dewatering pipe 100 can scrape off the water droplets on the outer wall of the pipe M a second time, and the scraped water is pumped away through the vacuum end. Therefore, compared with single dewatering, the dewatering method in this application has high dewatering reliability and the water droplets are scraped off more cleanly.

[0024] In this embodiment, the dewatering pipe 100 has a channel that matches the outer diameter of the pipe M, allowing the pipe M to pass through the channel. It should be noted that the gap between the inner wall of the dewatering pipe 100 and the outer wall of the pipe M should not be too large. The larger the gap, the worse the negative pressure effect generated by the vacuum assembly 300. At the same time, the gap should not be set too small to avoid dimensional errors in the pipe M that prevent it from passing through the dewatering pipe 100.

[0025] It is understandable that, based on the actual water removal effect, at least one more elastic ring plate 200 can be added between the two elastic ring plates 200, and the vacuum end of the vacuum assembly 300 is connected to multiple compartments within the water removal pipe 100 that are divided by the elastic ring plate 200.

[0026] In one embodiment, the bottom of the dewatering pipe 100 near its discharge end is provided with a drain hole 110, and the vacuum end of the vacuum assembly 300 is connected to the drain hole 110.

[0027] In this embodiment, two elastic ring plates 200 are respectively fixed at both ends of the water removal pipe 100. The inner diameter of the elastic ring plate 200 is smaller than the inner diameter of the water removal pipe 100 and the outer diameter of the pipe M. The elastic ring plate 200 is configured such that its inner ring can deform toward the inside of the channel under negative pressure to scrape off the water on the outer wall of the water removal pipe 100.

[0028] The elastic ring plate 200 can be made of rubber. Understandably, under the negative pressure, the elastic ring plate 200 has a small degree of deformation. The negative pressure mainly enables the elastic ring plate 200 to firmly press against the outer wall of the water pipe 100.

[0029] To facilitate the fixing of the elastic ring plate 200, in one embodiment, the dewatering device further includes two pressure rings 120 and a plurality of connecting screws 130. The two pressure rings are coaxially abutted against the opposite sides of the two elastic ring plates 200, respectively. The inner diameter of the two pressure rings 120 is larger than the outer diameter of the pipe M. A portion of the connecting screws 130 pass through one of the pressure rings and one of the elastic ring plates 200 and are connected to one end of the dewatering pipe 100. Another portion of the connecting screws 130 pass through the other pressure ring and the other elastic ring plate 200 and are connected to the other end of the dewatering pipe 100.

[0030] The vacuum assembly 300 in this embodiment includes a vacuum pump 310 and a drain pipe 320. The vacuum end of the vacuum pump 310 is connected to the channel of the water removal pipe 100 via the drain pipe 320. The drain pipe 320 is connected to a connector 321 installed on the drain hole 110.

[0031] In one embodiment, the vacuum assembly 300 further includes a water tank 330 and a horizontal pipe 340. The top end of the drain pipe 320 is connected to the channel of the water removal pipe 100, the bottom end of the drain pipe 320 is connected to the water tank 330, one end of the horizontal pipe 340 is connected to the side wall of the drain pipe 320, and the other end of the horizontal pipe 340 is connected to the vacuum end of the vacuum pump 310.

[0032] To prevent water droplets from being drawn into the vacuum pump 310 from the horizontal pipe 340, in one embodiment, the horizontal pipe 340 is inclined, and the downward inclined end of the horizontal pipe 340 is connected to the drain pipe 320.

[0033] To further improve the water removal effect, the water removal device in this embodiment also includes an elastic scraper 400. The elastic scraper 400 extends in a spiral direction and is disposed on the inner wall of the water removal pipe 100. The distance between the elastic scraper 400 and the central axis of the water removal pipe 100 is less than the radius of the pipe M.

[0034] In one embodiment, one end of the elastic wiper blade 400 near the feed inlet of the drain pipe 100 is located on the inner top wall of the drain pipe 100, and the other end of the elastic wiper blade 400 extends to the discharge outlet near the drain pipe 100.

[0035] The elastic wiper blade 400 has no more than 0.5 turns of thread, and there are two elastic wiper blades 400, which are arranged opposite each other on the inner walls of the drain pipe 100. Figure 4 As shown. It is understandable that limiting the number of thread turns of the aforementioned elastic wiper blade 400 can effectively prevent water from coming into contact with the elastic wiper blade 400 and affecting the drainage effect.

[0036] In one embodiment, an arc-shaped groove 140 is provided on the inner wall of the drain pipe 100, and the elastic wiper strip 400 is embedded in the arc-shaped groove 140.

[0037] Compared with existing technologies: the pipe M to be dewatered passes through the inner channel of the dewatering pipe 100, and the vacuum assembly 300 is turned on, forming a negative pressure between the inner wall of the dewatering pipe 100 and the outer wall of the pipe M. Under the action of negative pressure, the two elastic ring plates 200 deform toward the inside of the channel and slide against the outer wall of the pipe M. The elastic ring plate 200 at the inlet end of the dewatering pipe 100 can initially scrape off the water droplets on the outer wall of the pipe M. As the pipe M passes through the outlet of the dewatering pipe 100, the elastic ring plate 200 at the outlet end of the dewatering pipe 100 can scrape off the water droplets on the outer wall of the pipe M a second time, and the scraped water is pumped away through the vacuum end. Therefore, compared with single dewatering, the dewatering method in this application has high dewatering reliability and the water droplets are scraped off more cleanly.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe outer wall water removing device characterized by comprising: The device comprises a water removing pipe, two elastic ring plates and a vacuum assembly. The water removing pipe has a channel with an inner diameter matching the outer diameter of the pipe material, so that the pipe material can pass through the channel. The two elastic ring plates are respectively fixed at the two ends of the water removing pipe, and the inner diameter of the elastic ring plate is smaller than the inner diameter of the water removing pipe and the outer diameter of the pipe material. The vacuum assembly has a vacuum end connected to the channel of the water removing pipe, so as to generate negative pressure in the channel.

2. The pipe exterior wall water removal device according to claim 1, characterized by, The device further comprises elastic water scraping strips, which extend in a spiral direction and are arranged on the inner wall of the water removing pipe.

3. The pipe exterior wall water removal device according to claim 2, characterized by, The elastic water scraping strips are located on the inner top wall of the water removing pipe near the inlet end of the water removing pipe.

4. The pipe exterior wall water removal device according to claim 3, characterized by, The elastic water scraping strips extend to the position near the outlet end of the water removing pipe.

5. The pipe exterior wall water removal device according to claim 1, characterized by, The number of turns of the elastic water scraping strips is not more than 0.5 turns, and there are two elastic water scraping strips arranged on the inner walls of the water removing pipe on opposite sides.

6. The pipe exterior wall water removal device according to claim 1, characterized by, The water removing pipe has a drainage hole at the bottom near the outlet end, and the vacuum end of the vacuum assembly is connected to the drainage hole.

7. The pipe exterior wall water removal device according to claim 2, characterized by, The device further comprises two compression rings and a plurality of connecting screws.

8. The pipe exterior wall water removal device according to claim 1, characterized by, The water removing pipe has an arc-shaped groove on the inner wall, and the elastic water scraping strips are clamped in the arc-shaped groove.

9. The pipe exterior wall water removal device according to claim 8, characterized by, The vacuum assembly comprises a vacuum pump and a drainage pipe.

10. The pipe exterior wall water removal device according to claim 9, characterized by, The device further comprises a water tank and a cross pipe. The cross pipe is inclined, and the inclined downward end of the cross pipe is connected to the drainage pipe.

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