Cooling device for thermal insulation pipe

Abstract

The invention relates to the technical field of thermal insulation pipe production, in particular to a thermal insulation pipe cooling device which comprises a shell of a thin-wall structure, the shell is horizontally arranged, a base is fixedly connected to the bottom of the shell for supporting, the inlet end of the shell is fixedly connected with a front end cover, and the outlet end of the shell is fixedly connected with a rear end cover; one end of the lining pipe is fixedly connected to the end face of the front end cover, the other end of the lining pipe is fixedly connected to the end face of the rear end cover, a plurality of annular water pipes are fixedly connected to the outer wall of the lining pipe at equal intervals, every two adjacent water pipes are communicated through a pipeline, and a water inlet pipe is fixedly connected to one water pipe so that external cold water can be pumped into the water pipes; by changing the position of the first spray head, cold water sprayed out of the first spray head does decelerated motion, and impact force formed by the cold water is reduced through the decelerated motion, so that a polyethylene belt on the surface of the thermal insulation pipe is prevented from deforming and sinking due to overlarge impact force.

Description

Technical Field

[0001] The invention relates to the technical field of thermal insulation pipe production, in particular to a thermal insulation pipe cooling device. Background Art

[0002] Spray-wound insulation pipe is a common insulation pipe. Its production process technology has been effectively improved in terms of comprehensive performance compared with the production process of traditional insulation pipe. At present, spray-wound insulation pipe products have been recognized by the market and gradually promoted. When spray-wound insulation pipe is produced, polyethylene tape is used to wrap the outer layer of the insulation pipe. The wrapped insulation pipe is sent to the spray equipment and cooled by the cold water sprayed from the nozzle.

[0003] like Figure 1 As shown, in the prior art, the position of the spray equipment is fixed, and the spray head of the spray equipment is located above the insulation pipe, and the speed of cold water sprayed by each spray head is the same. However, in the actual production process, the polyethylene tape wrapped around the surface of the insulation pipe has a low strength when it first enters the spray equipment. When the cold water sprayed by the first spray head of the spray equipment contacts the polyethylene tape, the impact force generated will cause the surface of the insulation pipe to become concave and uneven, which not only affects its appearance, but also reduces its quality. Summary of the invention

[0004] The purpose of the present invention is to solve the defect in the prior art that the impact force of cold water sprayed from the nozzle is too large, resulting in depressions on the surface of the insulation pipe, and to propose an insulation pipe cooling device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Design a heat preservation pipe cooling device, including a thin-walled shell, the shell is horizontally arranged, a base is fixedly connected to the bottom of the shell for support, a front end cover is fixedly connected to the inlet end of the shell, and a rear end cover is fixedly connected to the outlet end;

[0007] A circular tubular inner liner, one end of which is fixedly connected to the end surface of the front cover and the other end is fixedly connected to the end surface of the rear cover. A plurality of circular water pipes are fixedly connected to the outer wall of the inner liner at equal intervals. Two adjacent water pipes are connected by a pipeline. A water inlet pipe is fixedly connected to one of the water pipes to pump cold water from the outside into the water pipe.

[0008] A plurality of arc-shaped slots are provided through the wall of the inner liner pipe, and the slots are located between two adjacent water pipes. A slider is slidably fitted in the slots, and a nozzle is slidably fitted on the slider, so that the nozzle slides radially along the inner liner pipe. The output end of the nozzle is located inside the inner liner pipe, and a circular rotating part is rotatably fitted on the end face of the water pipe. A conduit is installed through the rotating part, one end of the conduit is connected to the water pipe, and the other end is connected to the nozzle through a hose.

[0009] Preferably, a rotating structure is provided on the outside of the inner liner pipe to enable the nozzle to rotate around the axis of the inner liner pipe, and the rotating structure includes a plurality of support plates, and the support plates are slidably matched with the pipeline to enable the support plates to move axially along the inner liner pipe, and a circular annular plate is rotatably matched with the support plate, and a wedge-shaped groove is fixed on the inner ring of the annular plate, and a connecting rod is fixed to the input end of the nozzle, and a wedge-shaped plate is fixed to the end of the connecting rod, and the wedge plate is slidably matched with the wedge-shaped groove.

[0010] Preferably, there is a magnetic attraction between the wedge-shaped groove and the wedge-shaped plate.

[0011] Preferably, the upper sliding part of the shell is fitted with a plurality of mounting blocks, two adjacent mounting blocks are connected by a connecting rod, an annular plate is slidably fitted on the mounting block, a friction wheel is rotatably mounted on the mounting block, a motor is fixedly connected to the outer wall of the mounting block to drive the friction wheel to rotate, and the friction wheel abuts against the outer wall of the annular plate.

[0012] Preferably, a driving structure is provided on the front end cover to drive the mounting block to move axially along the outer shell, and the driving structure includes a screw and a nut seat, the nut seat is fixedly connected to the outer wall of the mounting block, one end of the screw is threadedly engaged in the nut seat, and the other end is rotatably mounted on the front end cover, and a driven wheel is fixedly connected to the end of the screw.

[0013] Preferably, a ring-shaped driving wheel is rotatably mounted on the end surface of the front end cover, the driving wheel abuts against the outer wall of the driven wheel, a servo motor is fixedly connected to the base, a driving wheel is fixedly connected to the output end of the servo motor, and the driving wheel abuts against the outer wall of the driving wheel.

[0014] Preferably, a plurality of sliding sleeves are fixedly connected at equal intervals on the end surface of the front end cover, a guide rod is slidably fitted in the sliding sleeve, one end of the guide rod is provided with a conveying wheel for conveying the insulation pipe, and the other end is fixedly connected with a sliding block, a plurality of inclined sliding grooves are opened on the end surface of the driving wheel, and the sliding block is slidably fitted in the sliding groove.

[0015] The thermal insulation pipe cooling device proposed in the present invention has the beneficial effect of: by changing the position of the first nozzle, the cold water sprayed from the first nozzle is decelerated, and the impact force generated by the cold water is reduced through the deceleration movement, thereby preventing the polyethylene belt on the surface of the thermal insulation pipe from being deformed and dented due to excessive impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the spraying equipment in the prior art.

[0017] Figure 2 This is a schematic structural diagram of the thermal insulation pipe cooling device proposed in the present invention.

[0018] Figure 3This is a front view of the thermal insulation pipe cooling device proposed by the present invention.

[0019] Figure 4 The invention provides a heat preservation pipe cooling device Figure 3 Enlarged view of point B in the middle.

[0020] Figure 5 The invention provides a heat preservation pipe cooling device Figure 3 AA section view.

[0021] Figure 6 The invention provides a heat preservation pipe cooling device Figure 5 Enlarged view of point C in the middle.

[0022] Figure 7 It is a right side view of the thermal insulation pipe cooling device proposed by the present invention.

[0023] Figure 8 Schematic diagram of the structure inside the shell of the insulation pipe cooling device proposed by the present invention Figure 1 .

[0024] Fig. 9 Schematic diagram of the structure inside the shell of the insulation pipe cooling device proposed by the present invention Figure 2 .

[0025] Fig.10 The invention provides a heat preservation pipe cooling device Fig. 9 Enlarged view of point D in the middle.

[0026] Fig.11 This is a schematic structural diagram of the water pipe of the thermal insulation pipe cooling device proposed by the present invention.

[0027] Fig.12 This is a schematic structural diagram of the annular plate and inner liner pipe of the thermal insulation pipe cooling device proposed in the present invention.

[0028] Fig.13 The invention provides a heat preservation pipe cooling device Fig.12 Enlarged view of point E in the middle.

[0029] Fig.14 This is a schematic structural diagram of the annular plate of the thermal insulation pipe cooling device proposed in the present invention.

[0030] Fig.15 The invention provides a heat preservation pipe cooling device Fig.14 Enlarged view of point F in the middle.

[0031] Fig.16 This is a structural schematic diagram of the nozzle position of the insulation pipe cooling device proposed by the present invention under normal conditions.

[0032] Fig.17This is a structural schematic diagram of the nozzle position of the insulation pipe cooling device proposed by the present invention when it is in working state.

[0033] In the figure: 1. base; 2. shell; 201. front cover; 202. rear cover; 3. servo motor; 4. driving wheel; 5. driving wheel; 6. slide groove; 7. sleeve; 8. guide rod; 9. conveying wheel; 10. sliding block; 11. lining pipe; 12. water pipe; 13. pipeline; 14. support plate; 15. water inlet pipe; 16. notch; 17. slider; 18. nozzle; 19. connecting rod; 20. wedge plate; 21. wedge groove; 22. annular plate; 23. rotating part; 24. mounting block; 25. connecting rod; 26. motor; 27. friction wheel; 28. nut seat; 29. ​​screw; 30. driven wheel; 31. conduit; 32. hose. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Reference Figure 2-Figure 5 The insulated pipe cooling device includes a thin-walled outer shell 2 and a cylindrical inner liner 11. The outer shell 2 is horizontally arranged, and a base 1 is fixedly connected to the bottom of the outer shell 2 for support. The inlet end of the outer shell 2 is fixedly connected to a front cover 201, and the outlet end is fixedly connected to a rear cover 202.

[0036] like Figure 5-Figure 8 As shown, one end of the liner tube 11 is fixedly connected to the end surface of the front cover 201, and the other end is fixedly connected to the end surface of the rear cover 202. A plurality of annular water pipes 12 are fixedly connected to the outer wall of the liner tube 11 at equal intervals. Two adjacent water pipes 12 are connected by pipelines 13. A water inlet pipe 15 is fixedly connected to one of the water pipes 12 to pump cold water from the outside into the water pipe 12.

[0037] During cooling, the water inlet pipe 15 pumps the cold water in the cold water pool into one of the water pipes 12 , and the multiple water pipes 12 interconnected by the pipeline 13 are also filled with cold water.

[0038] like Figure 9-12 As shown, a plurality of arc-shaped slots 16 are opened through the wall of the inner liner tube 11, and the slot 16 is located between two adjacent water pipes 12. A slider 17 is slidably fitted in the slot 16, and a nozzle 18 is slidably fitted on the slider 17, so that the nozzle 18 slides radially along the inner liner tube 11, and the output end of the nozzle 18 is located inside the inner liner tube 11, and a circular rotating part 23 is rotatably fitted on the end surface of the water pipe 12, and a conduit 31 is installed through the rotating part 23, one end of the conduit 31 is connected to the water pipe 12, and the other end is connected to the nozzle 18 through a hose 32.

[0039] The cold water in the water pipe 12 is transported to the nozzle 18 through the conduit 31 and the hose 32, and sprayed from the output end of the nozzle 18 to the inside of the inner liner 11 to cool down the insulation pipe entering the inner liner 11. The spray angle of the nozzle 18 can be adjusted by sliding the slider 17 along the slot 16 to cool down the insulation pipe in the inner liner 11 from different directions.

[0040] like Figure 12-Figure 15 As shown, a rotating structure is provided outside the inner liner pipe 11 to enable the nozzle 18 to rotate around the axis of the inner liner pipe 11. The rotating structure includes a plurality of support plates 14. The support plates 14 are slidably matched with the pipe 13 so that the support plates 14 move axially along the inner liner pipe 11. A circular annular plate 22 is rotatably matched on the support plate 14. A wedge-shaped groove 21 is fixedly connected to the inner ring of the annular plate 22. A connecting rod 19 is fixedly connected to the input end of the nozzle 18. A wedge plate 20 is fixedly connected to the end of the connecting rod 19. The wedge-shaped groove 21 is fixedly connected to the input end of the nozzle 18. The plate 20 is slidably fitted with the wedge-shaped groove 21, and there is a magnetic attraction between the wedge-shaped groove 21 and the wedge-shaped plate 20; a plurality of mounting blocks 24 are slidably fitted on the upper portion of the housing 2, and two adjacent mounting blocks 24 are connected by a connecting rod 25; the annular plate 22 is slidably fitted on the mounting block 24, and a friction wheel 27 is rotatably mounted on the mounting block 24; a motor 26 is fixedly connected to the outer wall of the mounting block 24 to drive the friction wheel 27 to rotate, and the friction wheel 27 abuts against the outer wall of the annular plate 22.

[0041] When adjusting the angle of the nozzle 18, start the motor 26, and the motor 26 drives the friction wheel 27 to rotate. The rotation of the friction wheel 27 drives the annular plate 22 to rotate. The rotation of the annular plate 22 drives the wedge groove 21 to rotate around the inner liner pipe 11. The rotation of the wedge groove 21 drives the wedge plate 20 to rotate. The rotation of the wedge plate 20 drives the connecting rod 25 to rotate. The rotation of the connecting rod 25 drives the nozzle 18 to rotate. The rotation of the nozzle 18 causes the slider 17 to slide along the slot 16, so that the nozzle 18 moves to different positions of the slot 16 to adjust the spray angle of the nozzle 18.

[0042] like Figure 2-Figure 4 and Figure 12-Figure 15 As shown, a driving structure is provided on the front end cover 201 for driving the mounting block 24 to move axially along the outer shell 2. The driving structure includes a screw 29 and a nut seat 28. The nut seat 28 is fixedly connected to the outer wall of the mounting block 24. One end of the screw 29 is threadedly engaged in the nut seat 28, and the other end is rotatably mounted on the front end cover 201. A driven wheel 30 is fixedly connected to the end of the screw 29. A circular driving wheel 5 is rotatably mounted on the end surface of the front end cover 201, and the driving wheel 5 abuts against the outer wall of the driven wheel 30. A servo motor 3 is fixedly connected to the base 1. A driving wheel 4 is fixedly connected to the output end of the servo motor 3, and the driving wheel 4 abuts against the outer wall of the driving wheel 5.

[0043] After the servo motor 3 is started, the driving wheel 4 will rotate, and the rotation of the driving wheel 4 will drive the active wheel 5 to rotate. The rotation of the active wheel 5 will drive the driven wheel 30 to rotate. The rotation of the driven wheel 30 will drive the screw 29 to rotate. Since the nut seat 28 is threadedly matched with the screw 29 and the nut seat 28 cannot rotate, the nut seat 28 will be driven to move linearly during the rotation of the screw 29, so that the nut seat 28 drives the mounting block 24 to move along the axial direction of the housing 2.

[0044] When the mounting block 24 moves along the axial direction of the outer shell 2, it will drive the annular plate 22 to move axially along the inner liner tube 11. The axial movement of the annular plate 22 along the inner liner tube 11 will drive the wedge-shaped groove 21 to slide on the inclined surface of the wedge-shaped plate 20. In the process of the wedge-shaped groove 21 sliding on the inclined surface of the wedge-shaped plate 20, it will drive the wedge plate 20 to move radially along the inner liner tube 11. The wedge plate 20 drives the connecting rod 19 to move radially along the inner liner tube 11. The radial movement of the connecting rod 19 along the inner liner tube 11 will drive the nozzle 18 to slide on the slider 17, thereby changing the distance between the nozzle 18 and the axis of the inner liner tube 11.

[0045] like Figure 2-Figure 4 As shown, a plurality of sliding sleeves 7 are fixedly connected at equal intervals on the end surface of the front end cover 201, a guide rod 8 is slidably fitted inside the sliding sleeve 7, one end of the guide rod 8 is provided with a conveying wheel 9 for conveying the insulation pipe, and the other end is fixedly connected with a sliding block 10, a plurality of inclined sliding grooves 6 are opened on the end surface of the driving wheel 5, and the sliding block 10 is slidably fitted in the sliding groove 6.

[0046] When the conveying wheel 9 is working, it can convey the insulated pipe into the inner lining pipe 11. When the driving wheel 5 rotates, the slide groove 6 on the driving wheel 5 will force the sliding block 10 to move radially along the driving wheel 5. The sliding block 10 will drive the conveying wheel 9 to move radially along the inner lining pipe 11 through the guide rod 8, thereby changing the spacing between the conveying wheels 9 to convey the insulated pipes with different outer diameters.

[0047] Working principle and workflow:

[0048] like Fig.16 As shown, the nozzle 18 is normally located at the top of the liner pipe 11;

[0049] When cooling the insulation pipe:

[0050] The conveying wheel 9 conveys the insulation pipe, so that the insulation pipe moves linearly and rotates at the same time;

[0051] Before the insulation pipe enters the inner liner pipe 11, start the motor 26 (based on the above description, it is known that the motor 26 can move the nozzle 18 to different positions of the slot 16 after starting), so that the first nozzle 18 closest to the front end cover 201 moves to the lowest point on the slot 16.

[0052] like Fig.17 As shown, after the first nozzle 18 moves to the lowest point, it is vertically arranged, and the cold water sprayed therefrom also moves vertically upward, and the cold water sprayed from the first nozzle 18 also decelerates under the action of gravity before contacting the insulation pipe from below.

[0053] After the insulation pipe enters the inner liner pipe 11, the first nozzle 18 first cools the polyethylene tape on the surface of the insulation pipe.

[0054] Since the cold water sprayed from the first nozzle 18 is constantly decelerating, the speed of the cold water when it contacts the surface of the insulation pipe is greatly reduced compared to the initial speed, and the impact force it generates is also greatly reduced, thereby preventing the polyethylene belt on the surface of the insulation pipe from being deformed and dented due to excessive impact force.

[0055] After the insulation pipe is cooled by the cold water sprayed by the first nozzle 18, the surface layer of the polyethylene tape on the surface of the insulation pipe is solidified due to the temperature reduction, and its own impact resistance will also be improved. Even if the subsequent nozzles 18 are kept at the highest position to cool the insulation pipe, the polyethylene tape on its surface will not be deformed due to the impact force of the cold water.

[0056] When cooling the insulated pipes with different outer diameters, the servo motor 3 is started. Based on the above description, it is known that after the servo motor 3 is started, the spacing between the conveying wheels 9 can be changed to convey the insulated pipes with different outer diameters. In the process of adjusting the spacing of the conveying wheels 9, the distance between the nozzle 18 and the axis of the liner pipe 11 will also change, so that the distance between the nozzle 18 and the outer wall of the insulated pipes with different outer diameters remains constant, so as to ensure that the impact force of the first nozzle 18 on the surface of the insulated pipe remains constant.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. The heat preservation pipe cooling device is characterized in that: include: A shell (2) of a thin-walled structure, the shell (2) is arranged horizontally, a base (1) is fixedly connected to the bottom of the shell (2) for support, a front end cover (201) is fixedly connected to the inlet end of the shell (2), and a rear end cover (202) is fixedly connected to the outlet end; A circular tubular inner liner (11), one end of the inner liner (11) is fixedly connected to the end surface of the front end cover (201), and the other end is fixedly connected to the end surface of the rear end cover (202); a plurality of annular water pipes (12) are fixedly connected at equal intervals on the outer wall of the inner liner (11); two adjacent water pipes (12) are connected via a pipe (13); a water inlet pipe (15) is fixedly connected to one of the water pipes (12) to pump cold water from the outside into the water pipe (12); A plurality of arc-shaped notches (16) are provided through the wall of the inner lining pipe (11), the notches (16) are located between two adjacent water pipes (12), a slider (17) is slidably fitted in the notches (16), a nozzle (18) is slidably fitted on the slider (17), so that the nozzle (18) slides radially along the inner lining pipe (11), the output end of the nozzle (18) is located inside the inner lining pipe (11), a circular rotating member (23) is rotatably fitted on the end surface of the water pipe (12), a conduit (31) is installed through the rotating member (23), one end of the conduit (31) is connected to the water pipe (12), and the other end is connected to the nozzle (18) through a hose (32).

2. The thermal insulation pipe cooling device according to claim 1, characterized in that: The inner liner pipe (11) is provided with a rotating structure on the outside to enable the nozzle (18) to rotate around the axis of the inner liner pipe (11), and the rotating structure includes a plurality of support plates (14), and the support plates (14) are slidably matched with the pipeline (13) so that the support plates (14) can move axially along the inner liner pipe (11), and a circular annular plate (22) is rotatably matched on the support plate (14), and a wedge-shaped groove (21) is fixedly connected to the inner ring of the annular plate (22), and the input end of the nozzle (18) is fixedly connected to a connecting rod (19), and the end of the connecting rod (19) is fixedly connected to a wedge-shaped plate (20), and the wedge-shaped plate (20) is slidably matched with the wedge-shaped groove (21).

3. The heat preservation pipe cooling device according to claim 2, characterized in that: There is a magnetic force of attraction between the wedge-shaped groove (21) and the wedge-shaped plate (20).

4. The heat preservation pipe cooling device according to claim 3, characterized in that: The housing (2) is slidably fitted with a plurality of mounting blocks (24), two adjacent mounting blocks (24) are connected via a connecting rod (25), the annular plate (22) is slidably fitted on the mounting blocks (24), a friction wheel (27) is rotatably mounted on the mounting blocks (24), a motor (26) is fixedly connected to the outer wall of the mounting block (24) for driving the friction wheel (27) to rotate, and the friction wheel (27) abuts against the outer wall of the annular plate (22).

5. The thermal insulation pipe cooling device according to claim 4, characterized in that: The front end cover (201) is provided with a driving structure for driving the mounting block (24) to move axially along the housing (2), the driving structure comprising a screw rod (29) and a nut seat (28), the nut seat (28) being fixedly connected to the outer wall of the mounting block (24), one end of the screw rod (29) being threadedly engaged in the nut seat (28), and the other end being rotatably mounted on the front end cover (201), and a driven wheel (30) being fixedly connected to the end of the screw rod (29).

6. The heat preservation pipe cooling device according to claim 5, characterized in that: A circular driving wheel (5) is rotatably mounted on the end surface of the front end cover (201), and the driving wheel (5) abuts against the outer wall of the driven wheel (30). A servo motor (3) is fixedly connected to the base (1), and a driving wheel (4) is fixedly connected to the output end of the servo motor (3), and the driving wheel (4) abuts against the outer wall of the driving wheel (5).

7. The thermal insulation pipe cooling device according to claim 6, characterized in that: A plurality of sliding sleeves (7) are fixedly connected at equal intervals on the end surface of the front end cover (201), a guide rod (8) is slidably fitted inside the sliding sleeve (7), one end of the guide rod (8) is provided with a conveying wheel (9) for conveying the insulation pipe, and the other end is fixedly connected with a sliding block (10), a plurality of inclined sliding grooves (6) are provided on the end surface of the driving wheel (5), and the sliding block (10) is slidably fitted in the sliding groove (6).

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