A circulating cooling device for nuclear power cable sheath pipe processing

Abstract

The application relates to the technical field of sheath pipe processing, in particular to a circulating cooling device for nuclear power cable sheath pipe processing, which comprises a water tank and a cooling shell, a partition plate is fixed in the cooling shell, and a water injection cavity and a water discharge cavity are formed in the cooling shell, water flow holes and through holes are arranged on the cooling shell, circulating pieces for water circulation are arranged between the water tank and the water injection cavity, reflux boxes are fixed at the two ends of the water tank, and reflux pipes are connected between the reflux boxes and the water tank; water cooling pipes penetrating through the partition plate are arranged between the water injection cavity and the water discharge cavity, the inner diameter of the water cooling pipes gradually decreases from the water injection cavity to the water discharge cavity, and a plurality of groups of adjusting mechanisms for supporting the sheath pipes are arranged on the water cooling pipes. The water cooling pipes with gradually decreasing inner diameters are arranged, compared with traditional water cooling pool cooling, the independently arranged water cooling pipes can accelerate the water flow speed of the surface contact part of the sheath pipe, so that the cooling effect is improved, rapid shaping is realized, the length of the cooling shell can be reduced, and the floor area is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sheath pipe processing, in particular to a circulating cooling device for nuclear power cable sheath pipe processing. BACKGROUND

[0002] The sheath pipe outside the cable is usually made by extrusion. The sheath pipe just extruded from the extruder is in a plastic stage and needs to be cooled and shaped. At present, most of the sheath pipes are cooled and shaped by water cooling.

[0003] The sheath pipe just extruded enters from one end of the water cooling pool, and passes out from the other end after being cooled by water. In this process, the overall water flow speed in the water cooling pool is slow because of the large volume of the water cooling pool, and the amount of cold water contacting the sheath pipe per unit time is limited, which affects the cooling effect of the sheath pipe. Moreover, due to the limited cooling effect, a relatively long water cooling pool must be used to meet the cooling and shaping requirements, resulting in a large land occupation of the water cooling pool. SUMMARY

[0004] To overcome the shortcomings of the prior art, the present application provides a circulating cooling device for nuclear power cable sheath pipe processing. The independently arranged water cooling pipe can accelerate the water flow speed of the part contacting the surface of the sheath pipe, thereby improving the cooling effect and realizing rapid shaping, and the land occupation can be reduced.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a circulating cooling device for nuclear power cable sheath pipe processing, comprising a water tank with an open top and a cooling shell installed on the top of the water tank, a partition plate is fixed in the cooling shell to form a water injection cavity and a water discharge cavity, and a water flow hole and a through hole for the sheath pipe to pass through are formed on the cooling shell, a circulating member for water circulation is arranged between the water tank and the water injection cavity, and a reflux box is fixed at both ends of the water tank, and a reflux pipe is communicated between the reflux box and the water tank;

[0006] A water cooling pipe penetrating the partition plate is installed between the water injection cavity and the water discharge cavity, the inner diameter of the water cooling pipe gradually decreases from the water injection cavity to the water discharge cavity, and a plurality of adjusting mechanisms for supporting the sheath pipe are installed on the water cooling pipe, the sheath pipe passes into the through hole at one end of the cooling shell, passes through the water cooling pipe, and passes out from the through hole at the other end of the cooling shell.

[0007] Preferably, the adjusting mechanism comprises a support shell fixed on the cooling shell and communicated with the water cooling pipe, a screw rod rotatably installed on the support shell, a moving block threadedly installed on the screw rod, a connecting rod rotatably installed on the moving block, a moving seat rotatably installed at the other end of the connecting rod, a top roller rotatably installed on the moving seat, and an extension rod installed between the moving seat and the support shell.

[0008] Preferably, the circulating member comprises a circulating pipe communicated with the water tank, the end of the circulating pipe away from the water tank extends into the water injection cavity, and a water pump is installed on the circulating pipe.

[0009] Preferably, the cooling shell is provided with a drainage member at each end portion, which concentrates and guides the overflowed cold water from the through hole into the return box.

[0010] The drainage member comprises a drainage hopper fixed at the end portion of the cooling shell, and two groups of anti-overflow strips located outside the through hole.

[0011] Preferably, the cooling shell is provided with a blocking mechanism at the position corresponding to the through hole; the blocking mechanism comprises a cylinder fixed on the cooling shell, a screw rod threadedly installed on the top of the cylinder, a piston column rotatably installed at the bottom of the screw rod in the cylinder, and a gas pipe communicated with the bottom of the cylinder; the end of the gas pipe away from the cylinder is communicated with a gas bag belt installed in the through hole; the gas bag belt is expanded to adhere to the surface of the sheath pipe, so that the gap between the sheath pipe and the through hole is reduced.

[0012] Preferably, the water tank is provided with a cooling mechanism; the cooling mechanism comprises a shunt pipe installed in the water tank, a plurality of groups of aeration heads installed on the shunt pipe, and a wind cooling pipe communicated with the end of the shunt pipe and extending out of the water tank; the end of the wind cooling pipe away from the shunt pipe is communicated with a cooling portion, and a blower is installed on the wind cooling pipe.

[0013] Preferably, the cooling portion comprises a cooling shell, and a plurality of groups of fins are fixed on the top of a refrigeration plate installed at the bottom of the cooling shell.

[0014] Preferably, the plurality of groups of fins are staggered.

[0015] The present application provides a circulating cooling device for nuclear power cable sheath pipe processing, which has the following advantages compared with the prior art:

[0016] 1. The water cooling pipe with gradually decreasing inner diameter is provided, compared with the traditional water cooling pool cooling, the independently arranged water cooling pipe can accelerate the water flow speed of the part in contact with the surface of the sheath pipe, thereby improving the cooling effect and realizing rapid shaping; and the length of the cooling shell can be reduced, and the floor area can be reduced.

[0017] 2. The adjusting mechanism is provided, which can control the top roller to move upward and contact and support the bottom of the sheath pipe, can effectively prevent the sheath pipe from deforming, and can ensure the quality of the sheath pipe; and since the position of the top roller is adjustable, it can also adapt to the support of sheath pipes with various outer diameters, and better meet the actual use requirements.

[0018] 3. The drainage hopper and the anti-overflow strip are provided, the overflowed water from the through hole is blocked by the anti-overflow strip and flows into the drainage hopper, and finally falls into the return box, preventing the water from dripping in the external environment, and saving water.

[0019] 4、The blocking mechanism is arranged, the rotating screw rod drives the piston column to descend, the air in the barrel body is pressed into the air bag belt, the air bag belt expands and is close to the surface of the sheath pipe, so that the blocking is realized, the blocking of various sizes of sheath pipes can be adapted, the practicality is better, and the use is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a front structure schematic view of the cooling device of the present application;

[0022] Figure 2 It is a back structure schematic view of the cooling device of the present application;

[0023] Figure 3 It is an enlarged schematic view of part A of the present application; Figure 2

[0024] Figure 4 It is a front structure sectional view of the cooling device of the present application;

[0025] Figure 5 It is a schematic view of the internal structure of the cooling shell of the present application;

[0026] Figure 6 It is a schematic view of the water cooling pipe and the adjusting mechanism structure of the present application;

[0027] Figure 7 It is a schematic view of the blocking mechanism structure of the present application;

[0028] Figure 8 It is a sectional view of the blocking mechanism structure of the present application;

[0029] Figure 9 It is a schematic view of the cooling mechanism structure of the present application;

[0030] Figure 10 It is a sectional view of the cooling mechanism structure of the present application.

[0031] In the drawings: 1-water tank, 2-cooling shell, 3-baffle, 4-through hole, 5-backflow box, 6-backflow pipe, 7-drainage piece, 8-water cooling pipe, 9-adjusting mechanism, 10-cooling mechanism, 11-blocking mechanism, 12-water flow hole, 13-circulation piece, a-water injection cavity, b-drainage cavity;

[0032] ​71 - drain hopper, 72 - anti-overflow strip; 91 - support shell, 92 - telescopic rod, 93 - screw rod, 94 - connecting rod, 95 - moving seat, 96 - top roller, 97 - moving block; 101 - cooling part, 102 - air blower, 103 - air cooling pipe, 104 - shunt pipe, 105 - aeration head, 1011 - cooling shell, 1012 - refrigeration plate, 1013 - fin; 111 - cylinder, 112 - piston column, 113 - screw rod, 114 - air pipe, 115 - air bag belt, 131 - circulating pipe, 132 - water pump. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail with the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0034] Example 1

[0035] The current water-cooled pool has a large volume, resulting in a slow water flow speed and limited cooling effect. The present embodiment provides a circulating cooling device for nuclear power cable sheath pipe processing, as shown in Figures 1-10 , which comprises a top-unsealed water tank 1 and a cooling shell 2 installed on the top of the water tank 1. The water tank 1 and the cooling shell 2 are supported by vertical rods to form a gap for rapid heat dissipation. A partition 3 is fixed in the cooling shell 2 to form a water injection cavity a and a water discharge cavity b. The cooling shell 2 is provided with water flow holes 12 and through holes 4 for the sheath pipe to pass through, and the through holes 4 are arranged at both ends of the cooling shell 2. A circulating member 13 for water circulation is arranged between the water tank 1 and the water injection cavity a to pump the water in the water tank 1 into the water injection cavity a. Specifically, the circulating member 13 comprises a circulating pipe 131 communicating with the water tank 1, the end of the circulating pipe 131 away from the water tank 1 extends into the water injection cavity a, and a water pump 132 is installed on the circulating pipe 131. When the water pump 132 is started, the cooling water in the water tank 1 will enter the water injection cavity a through the circulating pipe 131. The both ends of the water tank 1 are fixed with a backflow box 5, and a backflow pipe 6 is communicated between the backflow box 5 and the water tank 1. The water in the water discharge cavity b flows into the backflow box 5 through the water flow holes 12, and finally flows back to the water tank 1 through the backflow pipe. The water circulation flow under the cooperation of the circulating member 13, the backflow box 5 and the backflow pipe 6 cools the sheath pipe.

[0036] A water-cooled pipe 8 penetrating the partition 3 is installed between the water injection cavity a and the water discharge cavity b. The inner diameter of the water-cooled pipe 8 gradually decreases from the water injection cavity a to the water discharge cavity b, that is, the end of the water-cooled pipe 8 in the water injection cavity a has a larger size, and the end of the water-cooled pipe 8 in the water discharge cavity b has a smaller size. A plurality of sets of adjusting mechanisms 9 for supporting the sheath pipe are installed on the water-cooled pipe 8. The adjusting mechanisms 9 are installed between the cooling shell 2 and the water-cooled pipe 8. The sheath pipe enters from the through hole 4 at one end of the cooling shell 2, passes through the water-cooled pipe 8 and exits from the through hole 4 at the other end of the cooling shell 2. Figure 4For the reference determination of up and down, left and right direction, the melt extruded sheath pipe is pulled by the external force to enter from the right through hole 4, pass through the drainage cavity b, the water cooling pipe 8 and the water injection cavity a in turn, and finally pass out from the left through hole 4. During this period, the cold water in the water injection cavity a enters the water cooling pipe 8, and the heat of the sheath pipe 8 is taken away by the rapid flow of the cold water to realize cooling and shaping, and then the water flow enters the drainage cavity b and finally returns to the water tank 1. Compared with the traditional slow circulation cooling by filling the cooling shell 2 with cold water, the water cooling pipe 8 can accelerate the water flow speed of the part in contact with the surface of the sheath pipe, thereby improving the cooling effect and realizing rapid shaping; such arrangement can also reduce the length of the cooling shell and reduce the floor area. In addition, the gradually decreasing inner diameter of the water cooling pipe 8 can accelerate the cold water flow speed on the one hand and ensure the sufficient contact of the sheath pipe at the tail end of the right side of the water cooling pipe 8 with the cold water on the other hand. If the inner diameters of the water cooling pipe 8 are the same, the cold water near the right side section cannot fill the inside of the water cooling pipe 8 due to insufficient pressure, so that the part near the top of the sheath pipe cannot be in sufficient contact with the cold water, thereby affecting the cooling and shaping effect.

[0037] The sheath pipe needs to be supported during passing through the water cooling pipe 8 to prevent bending and deformation. The adjusting mechanism 9 includes a support shell 91 fixed on the cooling shell 2 and communicating with the water cooling pipe 8, a screw rod 93 rotatably installed on the support shell 91, a moving block 97 threadedly installed on the screw rod 93, and a connecting rod 94 rotatably installed on the moving block 97. The other end of the connecting rod 94 is rotatably installed with a moving seat 95, the moving seat 95 is rotatably installed with a top roller 96, and the moving seat 95 and the support shell 91 are installed with an extension rod 92 to ensure the movement of the moving seat 95 in the vertical direction. Rotating the screw rod 93 drives the moving block 97 to move, and through the deflection of the connecting rod 94, the moving seat 95 is driven to move, that is, the top roller 96 is driven to move up to contact and support the bottom of the sheath pipe, which can effectively prevent the sheath pipe from deforming and ensure the quality of the sheath pipe; and since the position of the top roller 96 is adjustable, it can also adapt to the support of sheath pipes of various outer diameters. For example, when facing a thinner sheath pipe, the top roller 96 can be adjusted to move up to support the sheath pipe, and when facing a thicker sheath pipe, the top roller 96 can be adjusted to move down to support the sheath pipe, which can better meet the actual use requirements.

[0038] The warm water after heat exchange with the sheath pipe will enter the water tank 1, and the warm water needs to be cooled to ensure the cooling effect of the sheath pipe in the circulation process. Therefore, a cooling mechanism 10 is arranged on the tank 1; the cooling mechanism 10 comprises a shunt pipe 104 installed in the water tank 1, and a plurality of groups of aeration heads 105 are installed on the shunt pipe 104. The aeration heads 105 can change the inhaled cold air into a large number of bubbles, and the large number of bubbles will quickly take away the heat of the water body after floating, so as to realize the cooling of the water body in the water tank 1. The end of the shunt pipe 104 extends out of the water tank 1 and is communicated with a wind cooling pipe 103, the end of the wind cooling pipe 103 away from the shunt pipe 104 is communicated with a cooling part 101, and a blower 102 is installed on the wind cooling pipe 103. Turn on the blower 102, the outside air is cooled to form cold air after passing through the cooling part 101, the cold air flows along the wind cooling pipe 103 and the shunt pipe 104 and is finally sprayed from the aeration head, so as to cool the water body and ensure the cooling effect of the sheath pipe; the cooling part 101 further improves the cooling rate of the water body.

[0039] Specifically, the cooling part 101 comprises a cooling shell 1011, a refrigeration plate 1012 is installed through the bottom of the cooling shell 1011, and a plurality of groups of fins 1013 are fixed to the top of the refrigeration plate 1012. The plurality of groups of fins 1013 are arranged alternately. Air enters from the opening end of the cooling shell 1011, the refrigeration plate 1012 is started, air enters the cooling shell 1011, and flows through the plurality of groups of fins 1013 in sequence to realize cooling, and normal temperature air becomes cold air.

[0040] Embodiment 2

[0041] The through hole 4 is not completely sealed, and part of the cold water will overflow from the gap, and the water will flow along the outer end of the cooling shell 2, and part of the fine stream will be seriously extended, and it is difficult to drop into the return box 5. Figures 1-3 On the basis of embodiment 1, the cooling shell 2 is provided with a drainage member 7 for collecting and guiding the cold water overflowing from the through hole 4 into the return box 5 at both ends; the drainage member 7 comprises a drainage hopper 71 fixed at the end of the cooling shell 2, and two groups of anti-overflow strips 72 located outside the through hole 4. The water overflowing from the through hole 4 is blocked by the anti-overflow strips 72 and flows into the drainage hopper 71, and finally falls into the return box 5, preventing the water from dripping in the external environment, and saving water.

[0042] Embodiment 3

[0043] The traditional plugging of the through hole 4 mostly uses a customized sealing shell to reduce the gap between the through hole 4 and the sheath pipe. However, the outer diameters of different types of sheath pipes are different, and the sealing shell needs to be customized separately, which is high in cost and inconvenient to use. Reference Figures 7-8On the basis of embodiment 1, the position corresponding to the through hole 4 on the cooling shell 2 is further provided with a blocking mechanism 11; the blocking mechanism 11 comprises a cylinder body 111 fixed on the cooling shell 2, a screw rod 113 is threadedly installed on the top of the cylinder body 111, a piston column 112 is rotatably installed in the cylinder body 111 at the bottom of the screw rod 113, and the piston column 112 can be driven to ascend or descend in the cylinder body 111 by rotating the screw rod 113. The bottom of the cylinder body 111 is communicated with an air pipe 114, the air pipe 114 is a flexible pipe, the end of the air pipe 114 away from the cylinder body 111 is communicated with an air bag belt 115 installed in the through hole 4, the air bag belt 115 is expanded to adhere to the surface of the sheath pipe, so that the gap between the sheath pipe and the through hole 4 is reduced. After the sheath pipe passes through the through hole 4, the screw rod 113 is rotated to drive the piston column 112 to descend, air at the lower part of the cylinder body 111 is pressed into the air bag belt 115 through the air pipe 114, the air bag belt 115 is expanded and adheres to the surface of the sheath pipe to achieve blocking, which can adapt to the blocking of sheath pipes of various sizes, has good practicability and is more convenient to use. The screw rod 113 is reversely rotated to drive the piston column 112 to ascend, and the gas in the air bag belt 115 can be extracted into the cylinder body 111.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A circulating cooling device for nuclear power cable sheath pipe processing, comprising a top-unsealed water tank (1) and a cooling shell (2) installed on the top of the water tank (1), characterized in that: The cooling shell (2) is fixed with a partition plate (3) and is formed with a water injection cavity (a) and a water discharge cavity (b), and the cooling shell (2) is provided with water flow holes (12) and through holes (4) through which the sheath pipes pass, a circulating member (13) for water circulation is arranged between the water tank (1) and the water injection cavity (a), and backflow boxes (5) are fixed to both ends of the water tank (1), and backflow pipes (6) are communicated between the backflow boxes (5) and the water tank (1); Water cooling pipes (8) penetrating the partition plate (3) are arranged between the water injection cavity (a) and the water discharge cavity (b), the inner diameter of the water cooling pipes (8) gradually decreases from the water injection cavity (a) to the water discharge cavity (b), and a plurality of sets of adjusting mechanisms (9) for supporting the sheath pipes are arranged on the water cooling pipes (8), the sheath pipes pass into the through holes (4) at one end of the cooling shell (2), pass through the water cooling pipes (8) and pass out of the through holes (4) at the other end of the cooling shell (2).

2. The circulating cooling device for nuclear power cable sheath pipe machining according to claim 1, characterized in that: The adjusting mechanism (9) comprises a supporting shell (91) fixed to the cooling shell (2) and communicated with the water cooling pipe (8), a screw rod (93) rotatably arranged on the supporting shell (91), a moving block (97) threadedly arranged on the screw rod (93), a connecting rod (94) rotatably arranged on the moving block (97), a moving seat (95) rotatably arranged at the other end of the connecting rod (94), a top roller (96) rotatably arranged on the moving seat (95), and an extension rod (92) arranged between the moving seat (95) and the supporting shell (91).

3. The circulating cooling device for nuclear power cable sheath pipe machining according to claim 1, characterized in that: The circulating member (13) comprises a circulating pipe (131) communicated with the water tank (1), and the end of the circulating pipe (131) away from the water tank (1) extends into the water injection cavity (a), and a water pump (132) is arranged on the circulating pipe (131).

4. The circulating cooling device for nuclear power cable sheath pipe machining according to claim 1, characterized in that: The cooling shell (2) is provided with a drainage member (7) at each end, which concentrates the overflowed cold water from the through hole (4) into the backflow box (5); The drainage member (7) comprises a drainage hopper (71) fixed to the end of the cooling shell (2), and two groups of anti-overflow strips (72) located outside the through hole (4).

5. The circulating cooling device for nuclear power cable sheath pipe machining according to claim 1, characterized in that: The cooling shell (2) is further provided with a blocking mechanism (11) corresponding to the position of the through hole (4); The blocking mechanism (11) comprises a cylinder (111) fixed to the cooling shell (2), a screw rod (113) threadedly arranged on the top of the cylinder (111), a piston column (112) rotatably arranged in the cylinder (111) at the bottom of the screw rod (113), and an air pipe (114) communicated with the bottom of the cylinder (111), and the end of the air pipe (114) away from the cylinder (111) is communicated with an air bag belt (115) arranged in the through hole (4), the air bag belt (115) is expanded and attached to the surface of the sheath pipe, so that the gap between the sheath pipe and the through hole (4) is reduced.

6. The circulating cooling device for nuclear power cable sheath pipe machining according to claim 1, characterized in that: The water tank (1) is provided with a cooling mechanism (10). The cooling mechanism (10) comprises a shunt pipe (104) installed in the water tank (1), a plurality of groups of aeration heads (105) are installed on the shunt pipe (104), the end of the shunt pipe (104) is out of the water tank (1) and is communicated with a wind cooling pipe (103), the end of the wind cooling pipe (103) away from the shunt pipe (104) is communicated with a cooling part (101), and a blower (102) is installed on the wind cooling pipe (103).

7. The circulating cooling device for nuclear power cable sheath pipe machining according to claim 6, characterized in that: The cooling part (101) comprises a cooling shell (1011), and a refrigeration plate (1012) is installed through the bottom of the cooling shell (1011); a plurality of groups of fins (1013) are fixed to the top of the refrigeration plate (1012).

8. The circulating cooling device for nuclear power cable sheath pipe machining according to claim 7, characterized in that: The plurality of groups of fins (1013) are staggered.

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