A drainage component for the water cooling system of a medium and high voltage catenary cable production line

Abstract

The present invention relates to the field of cable production technology and discloses a drainage assembly for a water cooling system of a medium- and high-voltage catenary cable production line. The assembly comprises a cooling pipe for circulating a coolant therein; and a liquid outlet pipe communicating with the wall of the cooling pipe; wherein the cooling pipe has a radially enlarged inner diameter at least where it communicates with the liquid outlet pipe. This drainage assembly for the water cooling system of a medium- and high-voltage catenary cable production line utilizes a drum-type structure, significantly accelerating the flow of cooling water and improving production efficiency, resolving a problem that has plagued the industry for years and limited the efficiency of large-scale cable production.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production, and in particular to a drainage component of a water cooling system of a medium- and high-voltage catenary cable production line. Background Art

[0002] With the rapid development of the cable industry, both domestically and internationally, not only is the demand for cables increasing, but performance requirements are also becoming increasingly demanding. Driven by market demand and driven by the needs of enterprise development, many companies are eliminating a large number of equipment with relatively backward technology and low-end configurations to ensure product quality, improve product competitiveness, and meet the cable performance requirements of different customers.

[0003] Generally, when producing cables, the larger the diameter, the more cooling water is required. However, when producing large cables, the water outlet is easily blocked by the large cable, resulting in poor water flow, unsatisfactory cooling effect, and low production efficiency. To this end, we propose a drainage component for the water cooling system of a medium and high voltage catenary cable production line to solve the above problems. Summary of the Invention

[0004] In order to achieve the purpose of accelerating the flow of cooling water, improving production efficiency, and solving the problem that has plagued the industry for many years and restricted the production efficiency of large cables, the present invention provides the following technical solutions:

[0005] A drainage assembly for a water cooling system of a medium- and high-voltage catenary cable production line comprises a cooling pipe through which a coolant circulates; and a liquid outlet pipe connected to the wall of the cooling pipe; wherein the cooling pipe has a radially enlarged inner diameter at least at a position where it communicates with the liquid outlet pipe.

[0006] In some embodiments, the cooling tube is provided with a bulge extending in the length direction of the cooling tube at a position connected with the liquid outlet tube, and the bulge has a radially enlarged inner diameter relative to a portion of the cooling tube away from the connected position.

[0007] In some embodiments, the interior of the bulge is a streamlined tubular structure.

[0008] In some embodiments, the bulge and the cooling pipe are detachable structures.

[0009] In some embodiments, the bulge is further provided with an observation window for observing the cable and liquid level in the pipe.

[0010] In some embodiments, both ends of the bulge in the length direction are provided with connecting parts, and the bulge is connected between two cooling pipes through the connecting parts to form an internal communication structure.

[0011] In some embodiments, the liquid outlet pipe is connected to a water vapor balance container at one end thereof away from the cooling pipe.

[0012] In some embodiments, the cooling tubes all have a uniform outer diameter, and the wall thickness of the portion thereof connected to the liquid outlet pipe is smaller than the wall thickness of the portion thereof away from the connected portion.

[0013] In some embodiments, the ratio of the enlarged inner diameter to the inner diameter of the infusion line is 1.5:1 to 1.8:1, preferably 1.6:1.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This type of drainage component of the water cooling system of the medium and high voltage catenary cable production line has a certain distance between the bottom wall of the cable and the liquid outlet pipe by making the inner diameter of the cooling pipe near the liquid outlet pipe larger than the inner diameter of the cooling pipe far away from the liquid outlet pipe. This ensures smooth flow of coolant, greatly improves production efficiency, and also makes it easier to observe the cable and liquid level in the pipe through the observation window.

[0016] 2. In the drainage assembly of the water cooling system of this medium and high voltage catenary cable production line, a bulge is provided near the liquid outlet pipe of the cooling pipe to increase the inner diameter, and the bulge and the cooling pipe are detachable structures, that is, connecting parts are provided on both sides of the bulge, and the bulge is connected between the two cooling pipes through the connecting part to form an internal connecting structure, thereby facilitating the installation of the bulge by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the prior art;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the prior art;

[0019] Figure 3 This is a schematic structural diagram of a drainage assembly of a water cooling system for a medium- and high-voltage catenary cable production line according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic cross-sectional structure diagram of a drainage component of a water cooling system for a medium- and high-voltage catenary cable production line according to an embodiment of the present invention.

[0021] In the figure: 1 is a cooling pipe; 2 is a cable; 3 is a liquid outlet pipe; 4 is a water vapor balance container; 5 is a coolant; 6 is an observation window; 7 is a bottom wall of the cable; 8 is a bulging part; 9 is a liquid inlet pipe; and 10 is a liquid delivery pipeline. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please refer to Figures 1 to 2 A drainage component for a water cooling system of a medium- and high-voltage catenary cable production line includes a cooling pipe 1, in which a cable 2 (as defined by the dotted line) is suspended. The wall of the cooling pipe 1 is connected to the coolant inlet pipe 9 and the outlet pipe 3. The cooling pipe 1 includes a coolant delivery line 10, which is the part between the coolant inlet pipe 9 and the coolant outlet pipe 3. Coolant 5 flows in the delivery line, and a water vapor balance container 4 is connected to the end of the outlet pipe 3 away from the cooling pipe 1. Here, the high-temperature cable material 2 extends Figure 3 The coolant 5 moves in the direction indicated by X, and flows along the liquid delivery line 10 toward the liquid outlet pipe 3, that is, Figure 3 In the Y direction, the cable material 2 is cooled. Due to the influence of natural gravity and the flow force of the coolant 5, the cable material 2 is easily offset against the pipe mouth 31 of the liquid outlet pipe 3 in the infusion pipeline, which slows down the flow of the coolant 5 and reduces the cooling efficiency.

[0024] To avoid this, the inner diameter of the portion 1A of the cooling tube 1 connecting to and / or near the connection point with the liquid outlet pipe 3 is radially enlarged, specifically larger than the inner diameter of the liquid infusion line portion 10 located farther from the connection point between the liquid outlet pipe 3 and the cooling tube 1A. For example, the ratio of the inner diameter of portion 1A to the inner diameter of the liquid infusion line portion 10 is 1.5:1 to 1.8:1, preferably 1.6:1. This configuration ensures a certain distance between the cable bottom wall 7 and the liquid outlet pipe 3, ensuring smooth flow of the coolant 5, significantly improving production efficiency while also preventing clogging of the liquid outlet pipe 3 by the cable bottom wall 7.

[0025] exist Figure 3 、 4In the illustrated embodiment, a bulge 8 extending along the length of the cooling tube is provided near the location of the connection with the liquid outlet pipe 3. The inner diameter of the bulge 8 is larger than the inner diameter of the liquid infusion line 10 of the cooling tube 1. For example, the ratio of the inner diameter of the bulge to the inner diameter of the liquid infusion line is 1.5:1 to 1.8:1, preferably 1.6:1. The provision of the bulge 8 increases the inner diameter of the cooling tube 1 at and / or near the liquid outlet pipe 3, thereby ensuring a certain distance between the cable bottom wall 7 and the liquid outlet pipe 3, facilitating smooth flow of the coolant 5 and improving production efficiency. The bulge 8 can have a streamlined inner tube structure extending in the longitudinal direction. Alternatively, other inner tube structures, such as capsule-shaped, rectangular, conical, or drum-shaped, can be employed, as long as the distance between the cable bottom wall 7 and the liquid outlet pipe 3 is sufficient to maintain smooth coolant flow.

[0026] The distance between the cable bottom wall 7 and the liquid outlet pipe 3 can be determined according to different settings of the cable.

[0027] In order to facilitate installation and disassembly, the bulge 8 and the cooling pipe 1 are detachable structures. For example, a structure can be adopted in which connecting parts 81 are provided on both sides of the bulge 8, and the bulge 8 is connected between the two cooling pipes 1 through the connecting part 81 to form an internal connecting structure, thereby facilitating the operator to install the bulge 8, and it is also more convenient when the bulge 8 has problems and needs to be repaired and replaced. The structure of the connection part here can adopt a threaded connection method, for example, it can be designed as a flange connected by threads, but it is best to embed a sealing ring at the connection to make the connection tighter to avoid water leakage.

[0028] In addition, for the cooling tube 1 with a larger wall thickness, a straight cylindrical external structure can still be used, that is, the cooling tube maintains a straight cylindrical outer contour, and the tube wall of the cooling tube 1 is maintained at the thicker size in the internal structure, and the tube wall of the part close to the liquid outlet pipe 3 is set to a relatively thin size, thereby forming a relatively large internal cavity. This also ensures that there is a certain distance between the cable bottom wall 7 and the liquid outlet pipe 3, and can also achieve the same anti-blocking function.

[0029] The bulge is also provided with an observation window 6 for observing the cable and liquid level in the pipe.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A drainage assembly for a water cooling system of a medium- and high-voltage catenary cable production line, characterized by: The cooling tube comprises a cooling pipe for circulating a cooling liquid therein; and a liquid outlet pipe, the liquid outlet pipe being in communication with a wall of the cooling tube; wherein the cooling tube has a radially enlarged inner diameter at least at a position where the cooling tube is in communication with the liquid outlet pipe; The cooling pipe is provided with a bulge extending in the longitudinal direction of the cooling pipe at a position communicating with the liquid outlet pipe, and the bulge has an inner diameter that is radially enlarged relative to a portion of the cooling pipe away from the communicating position; Both ends of the bulge in the length direction are provided with connecting parts, and the bulge is connected between the two cooling pipes through the connecting parts to form an internal communication structure.

2. The drainage assembly of the water cooling system of the medium and high voltage catenary cable production line according to claim 1 is characterized by: The bulging portion (8) is a streamlined tubular structure.

3. The drainage assembly of the water cooling system of the medium and high voltage catenary cable production line according to claim 1 is characterized by: The bulging portion (8) and the cooling pipe (1) are detachable structures.

4. The drainage assembly of the water cooling system of the medium and high voltage catenary cable production line according to claim 3 is characterized by: The bulging portion is also provided with an observation window (6) for observing the cable and the liquid level in the pipe.

5. The drainage assembly of the water cooling system of the medium and high voltage catenary cable production line according to claim 1 is characterized by: The cooling pipes all have a uniform outer diameter, and the wall thickness of the portion thereof connected to the liquid outlet pipe is smaller than the wall thickness of the portion thereof away from the connected portion.

6. The drainage assembly of the water cooling system of a medium- and high-voltage catenary cable production line according to any one of claims 1 to 5, characterized in that: One end of the liquid outlet pipe (3) away from the cooling pipe (1) is connected to a water vapor balance container (4).

7. The drainage assembly of the water cooling system of a medium- and high-voltage catenary cable production line according to any one of claims 1 to 5, characterized in that: The ratio of the enlarged inner diameter to the inner diameter of the infusion pipeline (10) is 1.5:1 to 1.8:1.

Images