CN110696346A

CN110696346A - Polyethylene winding outer pillar cooling device

Info

Publication number: CN110696346A
Application number: CN201910976517.7A
Authority: CN
Inventors: 陈朋; 张向辉; 杨清志; 张娇
Original assignee: Sanjie Energy Saving New Material Co Ltd
Current assignee: Sanjie Energy Saving New Material Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-01-17

Abstract

The invention relates to a cooling device for a polyethylene wound outer protective pipe, which comprises a house frame, wherein the inner space surrounded by the house frame is used as a water cooling area, a pipe conveyor is arranged in the water cooling area, the front side of the house frame is provided with a front plate, and the front plate is provided with a first through hole for the polyethylene wound outer protective pipe to pass through; a water cooling system is arranged on the rear side of the front plate; the air cooling system is arranged on the front side of the front plate and comprises a smoke exhaust hood arranged on the upper portion of the front side of the front plate, an exhaust fan arranged on one side of the inner wall of the smoke exhaust hood and an air blower arranged below the smoke exhaust hood, and an air outlet of the air blower faces the inside of the smoke exhaust hood; the invention realizes uniform cooling and rapid cooling of the polyethylene wound outer protective pipe by using air cooling and different forms of tertiary water cooling, ensures the cooling effect of the polyethylene wound outer protective pipe, and ensures the smooth appearance of the polyethylene wound outer protective pipe.

Description

Polyethylene winding outer pillar cooling device

Technical Field

The invention belongs to the technical field of pipe production, and particularly relates to a polyethylene wound outer protective pipe cooling device.

Background

When the outer pillar is formed by winding high-density polyethylene, the high-density polyethylene is required to be cooled and shaped after being wound on the outer ring of the polyurethane layer, and the flatness of the polyethylene winding belt and the sealing degree between two adjacent polyethylene winding belts are directly influenced by the cooling time and the uniformity of cooling.

Chinese patent 201621118084.X discloses a polyethylene structure wall winding pipe make-up machine with fan cooling device, including fuselage, conveyer belt, fan and quick-witted case, the front surface of machine case is provided with the door, and the right side surface of machine case is provided with control panel, the inside lower left corner of machine case is provided with the conveyer belt motor, the upper surface of conveyer belt motor is provided with the reducing gear box, the inside upper left corner that the upper surface of reducing gear box is close to quick-witted case is provided with the belt pulley, conveyer belt motor, suction fan and fan all with control panel electric connection. The novel winding pipe cooling device is scientific and reasonable in structure, safe and convenient to use and simple to operate, and is provided with the suction fan and the filter, and the unpleasant toxic gas can be filtered and discharged, so that an operator cannot be accidentally injured, the novel winding pipe cooling device is safe and environment-friendly to use, the air quality is improved, the fan is arranged, the formed winding pipe can be cooled and shaped, resources are saved, and the efficiency of processing and producing the winding pipe is effectively improved. However, the invention only uses air cooling for cooling, the cooling efficiency is limited, and in addition, the invention can not be directly applied to cooling of the polyethylene wound outer protective pipe with large pipe diameter.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a polyethylene winding outer protective pipe cooling device which combines cold air and water cooling and has uniform cooling.

The technical scheme of the invention is as follows:

a cooling device for a polyethylene wound outer protection pipe comprises a house frame, wherein an inner space surrounded by the house frame is used as a water cooling area, a pipe conveyor is arranged in the water cooling area, a front plate is arranged on the front side of the house frame, and a first through hole for the polyethylene wound outer protection pipe to pass through is formed in the front plate;

the water cooling system comprises a sponge plate arranged on the rear side of the front plate through an annular fixing device and a water supply pipe arranged right above the pipe conveyor along the conveying direction of the pipe conveyor, and second through holes with the size not larger than that of the first through holes are formed in the sponge plate corresponding to the first through holes; a spray pipe group consisting of a plurality of branch water pipes is arranged on the water supply pipe, the spray pipe group is arranged along the axial direction of the water supply pipe, the water outlets of all the branch water pipes are arranged right above the pipe conveyor, and the branch water pipes in the spray pipe group sequentially comprise a first branch water pipe, a second branch water pipe, a third branch water pipe, a fourth branch water pipe, a fifth branch water pipe and a plurality of rear branch water pipes along the front-rear direction; the first water branch pipe is communicated with a plurality of sponge water injection pipes, and the lower ends of the sponge water injection pipes are inserted into the sponge plates; a cloud water tank is obliquely arranged below the second branch water pipe and the third branch water pipe, a cloud water seam is formed in one side of the cloud water tank, and the cloud water seam extends in the left-right direction and is located right above a polyethylene winding outer protection pipe conveying track;

the front side of front bezel is provided with air cooling system, air cooling system including set up on front bezel front side upper portion fume hood, set up the air exhauster in fume hood inner wall one side and set up the air-blower in the fume hood below, the air outlet of air-blower is inside towards the fume hood.

Further, the annular fixing device comprises an inner ring piece, an outer ring piece, a small fixing piece group and a bolt and a nut, the inner diameters of the inner ring piece and the outer ring piece are both larger than the aperture of the second through hole, and the outer diameter of the outer ring piece is smaller than the aperture of the first through hole; the sponge plate is clamped between the inner ring piece and the outer ring piece and fixed through bolts and nuts, the fixed small piece group comprises a plurality of fixed small pieces, and the outer ring piece is fixedly connected to the front plate through the fixed small pieces.

Further, the outer ring piece comprises an outer annular plate and a side plate vertically connected to the periphery of the outer annular plate.

Furthermore, the small fixing pieces comprise a plurality of H-shaped fixing pieces, and the H-shaped fixing pieces are matched with the thicknesses of the outer ring piece and the front plate.

Furthermore, the inner ring piece and the outer ring piece are both circular ring pieces, and the outer ring piece is welded and fixed on the front plate through small fixing pieces.

Furthermore, the included angle between the cloud water tank and the horizontal plane is 0.01-15 degrees.

Further, the cloud water gap is arranged on the front side surface or the rear side surface or the bottom surface of the cloud water tank.

Further, the exhaust fan is arranged on the left side or the right side of the exhaust hood, and the blower is arranged on the opposite side of the exhaust hood.

Furthermore, the air outlet of the air blower is obliquely and upwards arranged, and the inclination angle of the air outlet of the air blower is adjustable.

Furthermore, a water collecting tank is arranged below the pipe conveyor.

Compared with the prior art, the invention has the beneficial effects that:

when the device is used, the front side of the front plate is a working area in which a polyethylene belt is wound on a pipe, the smoke exhaust hood is arranged right above the working area, the blower blows air to the smoke exhaust hood to cool the polyethylene belt which is just wound on the pipe in an air cooling mode, meanwhile, hot air carries harmful gas in the production process of the polyethylene belt to rise, the exhaust fan extracts the rising air flow and discharges the rising air flow into a tail gas treatment system of a plant area through a smoke pipe, the wound pipe moves towards the direction of a cold water area while rotating under the action of a pipe conveyor, the water supply pipe is connected with a pressure water source which supplies water into the water supply pipe, the sponge water injection pipe continuously and uniformly injects cooling water into the sponge plate, so that the cooling water in the sponge plate is always in a flowing and saturated state, the polyethylene wound outer protection pipe enters the water cooling area from the first perforation under the transportation of the pipe conveyor, and meanwhile, the peripheral wall of the second perforation is always in contact with the outer wall of the polyethylene wound outer protection pipe, so that the polyethylene wound The heat transfer cooling around the outer protection pipe is realized, so that primary water cooling of the polyethylene wound outer protection pipe is realized, the pipe body of the polyethylene wound outer protection pipe is uniformly cooled, then the polyethylene wound outer protection pipe is transported backwards under the transportation of a pipe conveyor, a water curtain is formed by a cloud water groove arranged behind a front plate through a cloud water seam, the water curtain is secondary water cooling, the center of the water curtain is positioned right above the center line of the polyethylene wound outer protection pipe, the water curtain falls on the polyethylene wound outer protection pipe and naturally flows downwards in a left-right uniform distribution mode to be cooled by water cooling, the polyethylene wound outer protection pipe is continuously transported backwards through a rear branch water pipe under the transportation of the pipe conveyor, and the rear branch water pipe sprays water to the center of the polyethylene wound outer protection pipe to cool the polyethylene wound outer protection pipe, so that the water cooling is carried out for three times; the invention realizes uniform cooling and rapid cooling of the polyethylene wound outer protective pipe by using air cooling and different forms of tertiary water cooling, ensures the cooling effect of the polyethylene wound outer protective pipe, and ensures the smooth appearance of the polyethylene wound outer protective pipe.

Drawings

Fig. 1 is a perspective view of a front view of an embodiment 1 of the present invention.

Fig. 2 is a schematic perspective view of a rear view in embodiment 1 of the present invention.

Fig. 3 is a schematic perspective view of a bottom view in embodiment 1 of the present invention.

Fig. 4 is a front view of the structure of embodiment 1 of the present invention.

FIG. 5 is a cross-sectional view of the clouding water tank of FIG. 4 taken along the direction A.

Fig. 6 is a cross-sectional view of the lowermost fastening tab of fig. 4 taken along direction a.

In the figure, a house frame 1, a front plate 2, a water supply pipe 3, a first perforation 4, a sponge plate 5, a second perforation 6, a first branch water pipe 7, a second branch water pipe 8, a fourth branch water pipe 9, a sponge water injection pipe 10, a cloud water groove 11, a cloud water seam 12, a smoke exhaust hood 13, an exhaust fan 14, a blower 15, an inner ring piece 16, an outer ring piece 17, a pipe conveyor 18, a platform 19, a water baffle plate 20, a water baffle curtain 21, a fixed small piece 22, a spreader 23 and a temporary storage box 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 5, a cooling device for a polyethylene wound outer protection pipe comprises a house frame 1, wherein an inner space surrounded by the house frame 1 is used as a water cooling area, a pipe conveyor 18 is arranged in the water cooling area, a front plate 2 is arranged on the front side of the house frame 1, and a first through hole 4 for the polyethylene wound outer protection pipe to pass through is formed in the front plate 2;

the rear side of the front plate 2 is provided with a water cooling system, the water cooling system comprises a sponge plate 5 arranged on the rear side of the front plate 2 through an annular fixing device and a water supply pipe 3 arranged right above the pipe conveyor 18 along the conveying direction of the pipe conveyor 18, and the sponge plate 5 is provided with a second through hole 6 corresponding to the first through hole 4, wherein the size of the second through hole 6 is not larger than that of the first through hole 4; a spray pipe group consisting of a plurality of branch water pipes is arranged on the water supply pipe 3, the spray pipe group is arranged along the axial direction of the water supply pipe 3, the water outlets of all the branch water pipes are arranged right above the pipe conveyor 18, and the branch water pipes in the spray pipe group sequentially comprise a first branch water pipe 7, a second branch water pipe 8, a third branch water pipe, a fourth branch water pipe 9, a fifth branch water pipe and a plurality of rear branch water pipes along the front-rear direction; the first water branch pipe 7 is communicated with a plurality of sponge water injection pipes 10, and the lower ends of the sponge water injection pipes 10 are inserted into the sponge plates 5; a cloud water groove 11 is obliquely arranged below the second branch water pipe 8 and the third branch water pipe, a cloud water seam 12 is formed in one side of the cloud water groove 11, and the cloud water seam 12 extends in the left-right direction and is located right above a polyethylene winding outer protective pipe conveying track; the central lines of the spray pipe group, the cloud water groove 11 and the cloud water seam 12 are positioned above the central line of the polyethylene wound outer protection pipe, so that the left side and the right side of the polyethylene wound outer protection pipe are simultaneously and uniformly cooled;

the front side of the front plate 2 is provided with an air cooling system, the air cooling system comprises an exhaust hood 13 arranged on the upper portion of the front side of the front plate 2, an exhaust fan 14 arranged on one side of the inner wall of the exhaust hood 13 and a blower 15 arranged below the exhaust hood 13, and an air outlet of the blower 15 faces the inside of the exhaust hood 13.

The sponge plate 5 can be directly purchased with commercially available water-absorbing sponge plates, the water holding capacity of the sponge plate 5 is limited by the highest saturation amount due to the fact that water is continuously injected into the sponge plate 5 through the sponge water injection pipe 10, and cooling water exceeding the saturation amount naturally flows downwards, so that the cooling water in the sponge plate 5 is replaced, and the temperature of the cooling water in the sponge plate 5 is kept constant; when polyethylene winding outer pillar passed through second perforation 6, the periphery of polyethylene winding outer pillar was contacted with the inner wall that the second perforated 6 all the time, for the contact time of guaranteeing sponge board 5 and polyethylene winding outer pillar, guaranteed the effect of heat-conduction cooling, the thickness of sponge board 5 is not less than 2 centimetres, according to production reality, the thickness of sponge board 4 is suitable at 8 centimetres to 20 centimetres, the processing that the second perforated 6 can be directly on sponge board 5 punching press, the cutting or dig get can.

The size of the second through hole 6 is not less than the outer diameter of the polyethylene wound outer protection pipe, so that the polyethylene wound outer protection pipe can pass through smoothly, but because the sponge plate 5 has flexibility and toughness, the inner diameter of the second through hole 6 is slightly smaller than that of the polyethylene wound outer protection pipe in actual production, and in addition, in actual application, the first through hole 4, the second through hole 6, the inner ring piece 16 and the outer ring piece 17 are not necessarily completely concentric, but the inner ring piece 16 and the outer ring piece 17 are preferably concentric so as to be convenient for the matching and fixing of bolts and nuts; the extending direction of the hole wall of the second through hole 6 is consistent with the front-back direction or is in a reduced horn shape from the front to the back, although the position of the sponge plate 5 is fixed by the annular fixing device, the whole second through hole 6 may deform along with the movement of the polyethylene wound outer protective pipe in the process that the polyethylene wound outer protective pipe penetrates through the second through hole 6, the contact area between the cooling water and the polyethylene wound outer protective pipe is increased by the deformation of the second through hole 6, the cooling efficiency is improved, meanwhile, partial cooling water held in the second through hole is squeezed out by the deformed sponge plate 5, and the replacement of the cooling water is also realized.

As shown in fig. 1 to 4, the annular fixing device includes an inner ring piece 16, an outer ring piece 17, a fixing small piece group, and a bolt nut, wherein the inner diameters of the inner ring piece 16 and the outer ring piece 17 are both larger than the aperture of the second through hole 6, and the outer diameter of the outer ring piece 17 is smaller than the aperture of the first through hole 4 so that the outer ring piece 17 can be accommodated in the first through hole 4; the sponge plate 5 is clamped between the inner ring piece 16 and the outer ring piece 17 and fixed through bolts and nuts, the fixed small piece group comprises a plurality of fixed small pieces 22, and the outer ring piece 17 is fixedly connected to the front plate 2 through the fixed small pieces 22; since the sponge plate 5 is a consumable product, the sponge plate 5 may be damaged after a long time use, and therefore, the sponge plate 5 is fixed by bolts and nuts so as to remove the inner ring piece 16, which facilitates the replacement of the sponge plate 5.

Specifically, as shown in fig. 1 to 4, the inner ring piece 16 and the outer ring piece 17 are both circular ring-shaped pieces, the outer ring piece 17 is welded and fixed on the front plate 2 through the small fixing piece 22, that is, the inner ring piece 16, the sponge plate 5 and the outer ring piece 17 form a sandwich structure, the inner ring piece 16 and the outer ring piece 17 clamp and fix the sponge plate 5 therebetween through bolts and nuts, and then the outer ring piece 17 is fixed on the front plate 2, so that the sponge plate 5 is fixed; preferably, the inner diameters of the inner ring piece 16 and the outer ring piece 17 are equal, so that the inner hole walls of the inner ring piece 16 and the outer ring piece 17 can support the sponge plate 5 after deformation in the process that the polyethylene winds the outer protective pipe to pass through the second through hole 6; the fixing small element 22 can be a small piece of angle iron which acts as an intermediate connection element for the welding operation of the outer ring plate 17 with the front plate.

As shown in fig. 2 and 3, the sponge water injection pipes 10 are for injecting water uniformly on the sponge plate 5, the lower ends of the sponge water injection pipes 10 can be uniformly inserted above the second water inlet pipe openings 5, and the lower ends of the water distribution pipes 9 can also be uniformly inserted on the periphery of the second water inlet pipe openings 5, and of course, no matter whether the lower ends of the water distribution pipes 9 are uniformly inserted on the upper portion of the sponge plate 4, the water distribution pipes are only required to be saturated with water held by the sponge plate 4; the end of the sponge water injection pipe 10 can be directly inserted at the seam between the inner ring piece 16 and the sponge plate 5.

Alternatively, as shown in fig. 1 to 4, a platform 19 for placing equipment or facilitating walking of people is provided on an upper portion of one side of the house frame 1.

Preferably, as shown in fig. 1 to 4, both sides of the housing 1 are provided with water-blocking curtains 21 for preventing cooling water from splashing outside the water-cooling area, and in order to avoid the obstruction of the view lines in fig. 1, 2 and 3, only the hanging rods of the water-blocking curtains 21 are shown in the water-blocking curtains 21 in fig. 1 and 2; the lower parts of two sides of the house frame 1 are provided with the water baffle plates 20, the water baffle curtain 21 is hung on the house frame 1 through the hook, the lower end of the water baffle curtain 21 freely hangs on the inner side of the water baffle plates 20, and the water baffle curtain 21 with the free lower end is convenient for personnel to lift and check the cooling effect of the polyethylene wound outer protective pipe.

As shown in fig. 1, 2, 3 and 5, the cloud water tank 11 is higher by one side and is higher by one side in the front-rear direction, so that the cloud water tank has a slope, the water discharged from the second branch water pipe 8 and the third branch water pipe is buffered by the cloud water tank 11 and then discharged through the cloud water seam 12 to form a water curtain with uniform thickness, namely a waterfall type water curtain is formed, and the water curtain falls on the polyethylene winding outer protective pipe to carry out secondary water cooling on the polyethylene winding outer protective pipe; specifically, the included angle between the cloud water groove 11 and the horizontal plane is 0.01-15 degrees, the cloud water seam 12 is arranged on the front side face or the rear side face or the bottom face of the cloud water groove 11, preferably, the cloud water groove 11 inclines towards the front upper side and forms an included angle of 1-5 degrees with the horizontal plane, and the cloud water seam 12 is arranged at the position, closest to the front, of the bottom face.

As shown in fig. 1, 2, 3 and 4, preferably, the exhaust fan 14 is arranged at the left side or the right side of the exhaust hood 13, and the blower 15 is arranged at the opposite side of the exhaust hood 13, for example, the exhaust fan 14 is arranged at the right side of the exhaust hood 13, and the blower 15 is arranged at the left lower part of the front plate 2; the air outlet of the blower 15 is arranged obliquely upwards, preferably, the inclination angle of the air outlet of the blower 15 is adjustable, and the blower 15 is erected in the middle of the working area through another bracket; preferably, the extension line of the lower edge of the air outlet is tangent to the outer wall of the outer protective pipe wound by polyethylene.

Preferably, a water collecting tank is arranged below the pipe conveyor 18, the water collecting tank collects cooling water flowing out in the tertiary water cooling, and water in the water collecting tank can be recycled or discharged outside.

Preferably, as shown in fig. 1, 2 and 3, a water outlet of the branch pipe 7 is connected to a water distributor 23 for distributing water flow, and the water distributor 23 may be a flat nozzle provided in the left-right direction, a towel for buffering water flow, or a shower head, as long as it is a water flow distributor capable of distributing water flow uniformly according to the conventional art.

Optionally, as shown in fig. 1, fig. 2, fig. 3, and fig. 5, a temporary storage tank 24 is disposed below the first water branch pipe 7, the upper end of the sponge water injection pipe 10 is connected to the temporary storage tank 24, water inlets of all the sponge water injection pipes 10 are located on the same horizontal plane, and water pressure is balanced, so that the flow rate of cooling water in the sponge water injection pipe 10 is uniform.

Example 2

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

As shown in fig. 6, the outer ring plate 17 includes an outer ring plate and a side plate perpendicularly connected to the outer periphery of the outer ring plate, i.e., the outer ring plate 17 has an "L" shape in cross section, and the connection position of the outer ring plate and the side plate does not affect the fixing effect of the outer ring plate 17.

Preferably, the fixing small elements 22 comprise a plurality of "H" shaped fixing elements, adapted to the thickness of the outer ring plate 17 and the front plate 2; specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 6, the "H" -shaped fastener includes a first fastening groove and a second fastening groove which are oppositely arranged, the outer ring plate 17 is fastened in the first fastening groove of the "H" -shaped fastener, and the hole wall of the first through hole 4 is arranged in the second groove, so that the fastening of the outer ring plate 17 is realized; in actual production, in order to facilitate installation of the H-shaped fixing piece, when the outer ring piece 17 is accommodated in the first through hole 4, a spacing seam with a width larger than the left width and the right width of the H-shaped fixing piece is reserved between the outer ring piece 17 and the first through hole 4, the H-shaped fixing piece is rotated by 90 degrees after the left width and the right width of the H-shaped fixing piece are aligned with the spacing seam to enter, namely, alignment of the first fixing groove and the outer ring piece 17 is realized, alignment of the second groove and the front plate 2 is realized, and the H-shaped fixing piece is fixed by using glue, screws and nuts or welding.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a polyethylene winding outer pillar cooling device, includes room frame (1), the inner space that room frame (1) encloses is as the water-cooling district, be provided with tubular product conveyer (18), its characterized in that in the water-cooling district: a front plate (2) is arranged on the front side of the house frame (1), and a first through hole (4) for polyethylene to wind an outer protective pipe to pass through is formed in the front plate (2);

a water cooling system is arranged on the rear side of the front plate (2), the water cooling system comprises a sponge plate (5) arranged on the rear side of the front plate (2) through an annular fixing device and a water supply pipe (3) arranged right above a pipe conveyor (18) along the conveying direction of the pipe conveyor (18), and a second through hole (6) with the size not larger than that of the first through hole (4) is formed in the sponge plate (5) corresponding to the first through hole (4); a spray pipe group consisting of a plurality of branch water pipes is arranged on the water supply pipe (3), the spray pipe group is arranged along the axial direction of the water supply pipe (3), the water outlets of all the branch water pipes are arranged right above the pipe conveyor (18), and the branch water pipes in the spray pipe group sequentially comprise a first branch water pipe (7), a second branch water pipe (8), a third branch water pipe, a fourth branch water pipe (9), a fifth branch water pipe and a plurality of rear branch water pipes along the front-rear direction; the first water branch pipe (7) is communicated with a plurality of sponge water injection pipes (10), and the lower ends of the sponge water injection pipes (10) are inserted into the sponge plates (5); a cloud water tank (11) is obliquely arranged below the second branch water pipe (8) and the third branch water pipe, a cloud water seam (12) is formed in one side of the cloud water tank (11), and the cloud water seam (12) extends in the left-right direction and is located right above a polyethylene winding outer protection pipe conveying track;

the front side of front bezel (2) is provided with air cooling system, air cooling system is including setting up fume hood (13) on front bezel (2) front side upper portion, setting up air exhauster (14) in fume hood (13) inner wall one side and setting up air-blower (15) in fume hood (13) below, the air outlet of air-blower (15) is inside towards fume hood (13).

2. The polyethylene wound outer jacket cooling device according to claim 1, wherein: the annular fixing device comprises an inner ring piece (16), an outer ring piece (17), a small fixing piece group and bolts and nuts, wherein the inner diameters of the inner ring piece (16) and the outer ring piece (17) are both larger than the aperture of the second through hole (6), and the outer diameter of the outer ring piece (17) is smaller than the aperture of the first through hole (4); the sponge plate (5) is clamped between the inner ring piece (16) and the outer ring piece (17) and fixed through bolts and nuts, the fixed small piece groups comprise a plurality of fixed small pieces (22), and the outer ring piece (17) is fixedly connected to the front plate (2) through the fixed small pieces (22).

3. The polyethylene wound outer jacket cooling device according to claim 2, wherein: the outer ring piece (17) comprises an outer annular plate and a side plate vertically connected to the periphery of the outer annular plate.

4. The polyethylene wound outer jacket cooling device according to claim 2, wherein: the small fixing pieces comprise a plurality of H-shaped fixing pieces, and the H-shaped fixing pieces are matched with the outer ring pieces (17) and the front plate (2) in thickness.

5. The polyethylene wound outer jacket cooling device according to claim 2, wherein: the inner ring piece (16) and the outer ring piece (17) are both circular ring pieces, and the outer ring piece (17) is welded and fixed on the front plate (2) through a small fixing piece (22).

6. The polyethylene wound outer jacket cooling device according to claim 1, wherein: the included angle between the cloud water tank (11) and the horizontal plane is 0.01-15 degrees.

7. The polyethylene wound outer jacket cooling device according to claim 1, wherein: the cloud water seam (12) is arranged on the front side surface or the rear side surface or the bottom surface of the cloud water tank (11).

8. The polyethylene wound outer jacket cooling device according to claim 1, wherein: the exhaust fan (14) is arranged on the left side or the right side of the exhaust hood (13), and the blower (15) is arranged on the opposite side of the exhaust hood (13).

9. The polyethylene wound outer jacket cooling device according to claim 1, wherein: a water collecting tank is arranged below the pipe conveyor (18).