Cooling device and cooling process for special control cable production

Abstract

The invention discloses a cooling device for special control cable production and a cooling process. The cooling device comprises a base; a cooling box is fixedly arranged on the base; a cooling tank is detachably arranged at the upper part of the cooling box and is of a U-shaped structure; a water outlet is formed in the bottom of the cooling tank, and cooling water forms a water curtain after passing; a water receiving groove is formed in the position, corresponding to the position under the cooling groove, in the cooling box; the air curtain and the water curtain which are arranged in parallel are formed in a limited space, the contact area of cooling water and air is increased through the water curtain, cooling of the cooling water is efficiently achieved through the thermodynamic principle, the air flow speed around the water curtain is increased through the air curtain, dissipated heat is transferred away, the heat exchange efficiency between the water curtain and the air is improved, and the cooling effect is improved. And meanwhile, due to the fact that the structure is simple and compact, and maintenance is convenient, the initial investment is small, the later maintenance cost is low, and popularization is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of cable production equipment, and in particular relates to a cooling device and a cooling process for producing special control cables. Background Art

[0002] Special control cables refer to control cables with special purposes and can be used in specific environments. Due to their more severe use environment and use intensity, they generally have higher heat resistance, corrosion resistance, wear resistance or other special properties. Therefore, for special control cables, more attention should be paid to detail control in the extrusion and cooling process.

[0003] A Chinese patent with publication number CN219123025U discloses a cooling device for the production of plastic insulated control cables. When cooling the cable, the water inside the cooling water tank will increase in temperature due to heat exchange with the cable. The cooling plates on both sides of the cooling water tank generate cold air to cool the water inside, thereby achieving the purpose of controlling the water temperature.

[0004] A Chinese patent with publication number CN117490319A also discloses a cooling device for the production of plastic insulated control cables. Although it uses a large-area spraying nozzle to completely cool the cable, the cooling water is cooled by a heat exchanger after being collected, and then enters the water tank through a second connecting pipe to wait for reuse, thereby realizing the cooling cycle and reuse of the cooling water to achieve the purpose of controlling the water temperature.

[0005] In the technical solution of the above patent, a refrigeration plate or a heat exchanger is used to cool the cooling water so that the temperature of the cooling water is always kept under the condition of cooling the special control cable to ensure the use strength of the cable. The refrigeration plate has a fast cooling effect, but the energy efficiency is relatively low, it consumes more electricity, and long-term operation may cause the performance of the refrigeration plate to decline, requiring regular maintenance or replacement; and although the heat exchanger has a higher energy efficiency ratio and better system stability, it is affected by multiple factors such as a relatively complex system structure, requiring more installation and maintenance space, and the initial investment cost may be higher; Considering the above advantages and disadvantages, cable cooling equipment cannot achieve high energy efficiency, stable cooling, low investment cost and maintenance cost at the same time, so it still has certain limitations. Summary of the invention

[0006] The purpose of the present invention is to provide a cooling device and cooling process for special control cable production to solve the technical problem in the prior art that the cable cannot be cooled and cooled in an energy-saving and stable state with low investment cost and maintenance cost.

[0007] The purpose of the present invention can be achieved through the following technical solutions: A cooling device for special control cable production includes a base; a cooling box is fixedly arranged on the base; The cooling box is provided with a detachable cooling trough on the upper part, which is in a U-shaped structure; a water outlet is provided at the bottom of the cooling trough, and a water curtain is formed after the cooling water passes through; A water receiving tank is arranged inside the cooling box at a position corresponding to the position directly below the cooling tank; a hose is arranged at the bottom of the water receiving tank; a circulating pump corresponding to the hose is fixedly arranged outside the cooling box, and the output end of the circulating pump is connected to the inside of the cooling tank; The cooling box is provided with an air nozzle at one end away from the extruder. The input end of the air nozzle is connected to the cooling fan and presents a circular structure, and the output end extends into the cooling box and presents a flat structure. After the air blows through, a wind curtain is formed.

[0008] Preferably, the upper part of the cooling trough on one side away from the extruder presents a semicircular raised structure, where a first directional wheel is rotatably arranged; the cooling box is rotatably connected to a second directional wheel corresponding to the position of the air outlet; the first directional wheel and the second directional wheel both present a structure that is thin in the middle and thick at both ends.

[0009] Preferably, a fixing frame is fixedly provided at one end of the cooling box near the semicircular portion; and a guide wheel is rotatably connected to the fixing frame.

[0010] Preferably, a semicircular portion is provided at one end of the cooling box close to the extruder; an air outlet is provided at one end of the cooling box close to the air cooler, and the air outlet and the air nozzle are respectively located on both sides of the water outlet.

[0011] Preferably, a convex plate is fixedly connected to the center of the bottom of the cooling trough, and the water outlet passes through to the bottom of the convex plate.

[0012] Preferably, one of the side walls of the cooling box is provided with a cutout; and a sealing plate is provided on the cooling box at a position corresponding to the cutout through hinge rotation.

[0013] Preferably, the cooling tank is rotatably connected to evenly distributed rollers.

[0014] Preferably, the bottom of the water receiving trough is deeper; and a filter layer is detachably provided at the bottom of the water receiving trough.

[0015] Preferably, an electric push rod is fixedly arranged below the base, and an output end of the electric push rod is connected to the bottom of the water receiving trough.

[0016] A cooling process for producing special control cables comprises the following steps: S1: Cooling water is placed in the cooling tank or the water receiving tank, and the cooling water is continuously circulated in the cooling tank and the water receiving tank by a circulating pump, a water curtain is formed during the circulation process, and the cooling water is cooled by air; S2: The special control cable led out from the extruder is introduced into the cooling tank, so that it exchanges heat with the cooling water inside the cooling tank, thereby cooling down; S3: After a period of time, if the temperature of the cooling water still cannot meet the cable cooling requirements, the cooling fan will introduce cold air into the air nozzle to form an air curtain to accelerate the cooling speed of the water curtain, so that the cooling water can meet the cooling requirements of the special control cable; S4: After the special control cable is cooled, it is dried to remove water droplets attached to the cable surface; S5: Use the cable reel to reel and store the special control cable.

[0017] Beneficial effects of the present invention: 1) The present invention forms two parallel wind curtains and water curtains in a limited space through the cooperation of the wind nozzle and the water outlet, uses the water curtain to increase the contact area between the cooling water and the air, uses the thermodynamic principle to efficiently cool the cooling water, uses the wind curtain to accelerate the air flow rate around the water curtain, and transfers the emitted heat, thereby improving the heat exchange efficiency between the water curtain and the air, thereby accelerating the cooling speed of the cooling water, and has a high energy efficiency ratio. At the same time, due to its simple and compact structure and convenient maintenance, not only the initial investment is small, but the later maintenance cost is also low, which is conducive to promotion.

[0018] 2) The wind curtain formed in the cooling box of the present invention continues to move inside the cooling box and encounters the semicircular part of the cooling box. The blowing direction of the wind curtain is changed by the guidance of the semicircular part, that is, the wind curtain moves from one side of the water curtain to the other side of the water curtain. While further improving the cooling effect of the cooling water, it also blows on the control cable wound into the cooling box, speeding up the drying speed of the control cable, reducing the subsequent drying time of the control cable, and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a rear view of the present invention; Figure 2 is a front view of the present invention; Figure 3 is a first cross-sectional view of the present invention; Figure 4 It is a schematic diagram of the cooling water circulation state in the present invention; Figure 5 is a second cross-sectional view of the present invention; Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0021] In the figure: 1. base; 2. cooling box; 3. cooling trough; 4. drum; 5. drain outlet; 6. convex plate; 7. water receiving trough; 8. filter layer; 9. hose; 10. circulation pump; 11. air nozzle; 12. electric push rod; 13. fixing frame; 14. guide wheel; 15. semicircular part; 16. air outlet; 17. first directional wheel; 18. second directional wheel; 19. incision; 20. sealing plate. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 2 As shown, a cooling device and cooling process for special control cable production include a base 1 set on the ground by means of legs, the base 1 is set at the output end of the special control cable production extruder to receive the extruded cable; a cooling box 2 is fixedly arranged on the base 1; a cutout 19 is opened on one of the side walls of the cooling box 2; a sealing plate 20 is arranged on the cooling box 2 corresponding to the position of the cutout 19 through a hinge to rotate, so as to cover the cutout 19.

[0024] Please refer again Figure 3 and Figure 4 As shown, a cooling tank 3 is detachably provided on the upper part of the cooling box 2, and the cooling tank 3 is in a U-shaped structure; a convex plate 6 is fixedly connected to the center of the bottom of the cooling tank 3; a water outlet 5 penetrating the convex plate 6 is provided at the bottom of the cooling tank 3; By setting the water outlet 5, the cooling water can form a water curtain when passing through, and the water outlet 5 penetrating the convex plate 6 can form a narrow and long channel, which makes it easier to form a water curtain when the cooling water passes through. The U-shaped cooling groove 3 can make the cooling water enter the water outlet 5 in a concentrated manner, and the cooling water will not remain in the cooling groove 3 after the shutdown operation. Therefore, the cooling groove 3 can also be set to be V-shaped; The cooling tank 3 is rotatably connected to rollers 4 evenly distributed inside. The rollers 4 are used to receive the control cables so that the cables can move without damage inside the cooling tank 3. A water receiving tank 7 that can move up and down is provided inside the cooling box 2 at a position corresponding to the position directly below the cooling tank 3. The bottom of the water receiving tank 7 is deep to prevent splashing after the cooling water enters. A filter layer 8 is detachably provided at the bottom of the water receiving tank 7. The filter layer 8 is composed of conventional filter structures such as a reverse osmosis layer and an activated carbon filter layer 8, which will not be described in detail here. Please refer again Figure 1 and Figure 4As shown, the water receiving trough 7 is connected to the bottom of the filter layer 8 and is provided with one or more hoses 9, which can move up and down and extend and retract along with the water receiving trough 7; a circulating pump 10 corresponding to the hose 9 is fixedly provided on the outside of the cooling box 2, and the output end of the circulating pump 10 is connected to the inside of the cooling trough 3, and continuously exchanges water into the cooling trough 3 at a relatively low output speed, and the water outlet position is located below the water surface of the cooling trough 3 to avoid bubbles and splashes in the cooling trough 3 that affect the cooling effect of the control cable.

[0025] An electric push rod 12 is fixedly arranged below the base 1, and the output end of the electric push rod 12 penetrates into the interior of the cooling box 2 and is connected to the bottom of the water receiving trough 7, so as to drive the water receiving trough 7 to move vertically inside the cooling box 2; By controlling the distance between the water receiving tank 7 and the cooling tank 3, the heat exchange time of the water curtain in the air can be changed.

[0026] Please refer again Figure 1 , Figure 3 as well as Figure 5 As shown, the cooling box 2 is close to one end of the extruder ( Figure 1 The left side of the cooling box 2 is provided with a semicircular portion 15, which is used to adjust the direction of wind flow; the cooling box 2 is provided with an air nozzle 11 at the end away from the extruder, the input end of the air nozzle 11 is connected to the air cooler and has a circular structure, and the output end extends into the cooling box 2 and has a flat structure, which is used to blow air into the cooling box 2 to accelerate the cooling efficiency of the water curtain; the cooling box 2 is provided with an air outlet 16 at one end close to the air cooler, and the air outlet 16 and the air nozzle 11 are respectively located on both sides of the water outlet 5.

[0027] Please refer again Figure 6 As shown, the upper side of the cooling trough 3 away from the extruder presents a semicircular raised structure, where a first directional wheel 17 is rotatably arranged; the cooling box 2 is rotatably connected to a second directional wheel 18 at a position corresponding to the air outlet 16; the first directional wheel 17 and the second directional wheel 18 both present a structure that is thin in the middle and thick at both ends, and are used to change the output direction of the control cable; a fixing frame 13 is fixedly arranged at one end of the cooling box 2 near the semicircular portion 15; a guide wheel 14 is rotatably connected to the fixing frame 13, and the control cable passes through the cooling box 2 in cooperation with the guide wheel 14, the first directional wheel 17 and the second directional wheel 18, and returns to the outside of the cooling box 2 from the air outlet 16 to be connected to the winding wheel.

[0028] By providing the first directional wheel 17 and the second directional wheel 18 which are thin in the middle and thick at both ends, the control cable can maintain a stable state when entering the cooling box 2 from the upper part of the cooling groove 3 in an oblique manner.

[0029] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below: The cable is led from the output end of the extruder into the cooling trough 3 and supported and suspended by the roller 4. The cooling water inside the cooling trough 3 exchanges heat with the control cable to cool it down. After the cable is led out from the other end of the cooling trough 3, it is led into the cooling box 2 obliquely below with the assistance of the first directional wheel 17 and the second directional wheel 18. At this time, the sealing plate 20 is opened and half of it is wound around the guide wheel 14 from the incision 19. Finally, the end of the control cable is led back to the outside of the cooling box 2 from the air outlet 16 and reeled up with a cable reel.

[0030] During this process, since the water inside the cooling tank 3 will continuously exchange heat with the control cable, the water temperature of the cooling water inside the cooling tank 3 will continue to rise after a long period of operation, resulting in a worse cooling effect of the control cable. Therefore, in order to achieve a better cooling effect for the control cable, the cooling water needs to be cooled during specific operations to keep it at a constant temperature.

[0031] First, the cooling water in the cooling trough 3 flows from the drain port 5 to the water receiving trough 7 below, and forms a water curtain during the falling process. The contact area between the cooling water and the air is increased by changing the falling shape of the cooling water into a flat water curtain shape. According to three thermodynamic phenomena, it can be seen that: first, convection heat transfer, at this time, the cooling water and the air exchange heat, and the water curtain with a larger contact area undoubtedly accelerates the cooling rate of the cooling water; second, evaporative heat dissipation, some water molecules of the cooling water will evaporate into water vapor during the falling process, and evaporation will take away part of the heat in the cooling water, and the water curtain with a larger contact area increases the cooling rate of the cooling water; third, radiation heat dissipation, any object above absolute zero will radiate heat outward in the form of electromagnetic waves, so the cooling water will also lose part of the heat to the surrounding environment through thermal radiation, and the water curtain with a larger contact area also increases the cooling rate of the cooling water.

[0032] Secondly, an air cooler is connected to the circular structure of the air nozzle 11, and the air cooler is used to blow air towards the flat part to compress and flatten the wind direction, so that the blown wind forms a wind curtain parallel to the water curtain inside the cooling box 2. The wind curtain can not only accelerate the air flow speed beside the water curtain and provide lower temperature air to exchange heat with the water curtain, but also take away the heat generated by the cooling water. With the cooperation of the wind curtain and the water curtain, the cooling speed of the cooling water is further improved. Not only is the structure simple, but also it has a very high energy efficiency ratio.

[0033] Finally, the water curtain falls into the water receiving tank 7, and after being filtered by the filter layer 8, it is re-input into the cooling tank 3 by the cooperation of the hose 9 and the circulation pump 10, and circulates continuously. In the circulation process, the control cable is cooled down. Moreover, after the operation is stopped, the cooling water lacks the circulation effect of the circulation pump 10, and automatically flows from the water outlet 5 to the water receiving tank 7 for storage. In cooperation with the cooling box 2, it can be free from external pollution, does not affect the multiple circulation of cooling water, and saves water resources.

[0034] It is worth noting here that: by controlling the distance between the water receiving tank 7 and the cooling tank 3 through the electric push rod 12, the cooling speed of the cooling water can undoubtedly be freely controlled, providing a more refined cooling effect for the cooling of the special control cable; In order to prevent the air curtain from affecting the formation of the water curtain, the output power of the air cooler is generally a fixed value, and the cooling speed of the cooling water can be controlled by controlling the height of the water receiving tank 7; By providing the cooling box 2, the air curtain and the water curtain can be enclosed inside, thereby preventing the influence of the external environment on their forming, optimizing the forming effect of the air curtain and the water curtain, and achieving better stability.

[0035] In addition, after the air curtain continues to move inside the cooling box 2, it encounters the semicircular portion 15 of the cooling box 2. The semicircular portion 15 is used to guide the blowing direction of the air curtain, that is, the air curtain moves from one side of the water curtain to the other side of the water curtain. While further improving the cooling effect of the cooling water, the control cable wound into the cooling box 2 is also blown, thereby accelerating the drying speed of the control cable, reducing the subsequent drying time of the control cable, and reducing energy consumption. It can be known that the water curtain divides the internal space of the cooling box 2 into two parts: a drying area and a cooling area. The wind blown by the air cooler first blows toward the inside of the cooling area. At this time, the wind speed is relatively large, and the formed wind curtain has the best cooling effect on the water curtain. After passing through the semicircular portion 15, the wind curtain is slightly deformed and the wind speed is also reduced. However, the water curtain is blocked and will not affect the formation of the wind curtain. After continuing to enter the drying area, the wind curtain continues to cool the water curtain and blows the control cable dry, and finally returns to the outside of the cooling box 2 from the air outlet 16.

[0036] A cooling process for producing special control cables comprises the following steps: S1: Cooling water is filled into the cooling tank 3 or the water receiving tank 7, and the cooling water is continuously circulated in the cooling tank 3 and the water receiving tank 7 by the circulation pump 10, a water curtain is formed during the circulation process, and the cooling water is cooled by air; S2: Lead the special control cable from the extruder into the cooling tank 3, so that it exchanges heat with the cooling water in the cooling tank 3, thereby cooling down; S3: After a period of time, if the temperature of the cooling water still cannot meet the cable cooling requirement, cold air is introduced into the air nozzle 11 through the air cooler, so that the formed wind curtain accelerates the cooling speed of the water curtain, thereby making the cooling water meet the cooling requirement of the special control cable; S4: After the special control cable is cooled, it is dried to remove water droplets attached to the cable surface; S5: Use the cable reel to reel and store the special control cable.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for special control cable production, characterized in that: It comprises a base (1); a cooling box (2) is fixedly arranged on the base (1); The cooling box (2) is detachably provided with a cooling trough (3) on the upper part, and the cooling trough (3) is in a U-shaped structure; a water outlet (5) is provided at the bottom of the cooling trough (3), and a water curtain is formed after cooling water passes through; A water receiving trough (7) is arranged inside the cooling box (2) at a position corresponding to the position directly below the cooling tank (3); a hose (9) is arranged at the bottom of the water receiving trough (7); a circulating pump (10) corresponding to the hose (9) is fixedly arranged outside the cooling box (2), and the output end of the circulating pump (10) is connected to the inside of the cooling tank (3); An air nozzle (11) is provided at one end of the cooling box (2) away from the extruder; the input end of the air nozzle (11) is connected to the cooling fan and presents a circular structure; the output end extends into the interior of the cooling box (2) and presents a flat structure, and forms an air curtain after the air blows through.

2. A cooling device for special control cable production according to claim 1, characterized in that: The upper part of the cooling trough (3) on the side away from the extruder presents a semicircular raised structure, where a first directional wheel (17) is rotatably arranged; the cooling box (2) is rotatably connected to a second directional wheel (18) at a position corresponding to the air outlet (16); the first directional wheel (17) and the second directional wheel (18) both present a structure that is thin in the middle and thick at both ends.

3. A cooling device for producing special control cables according to claim 1, characterized in that: A fixing frame (13) is fixedly arranged at one end of the interior of the cooling box (2) close to the semicircular portion (15); a guide wheel (14) is rotatably connected to the fixing frame (13).

4. The cooling device for producing special control cables according to claim 1, characterized in that: The cooling box (2) is provided with a semicircular portion (15) at one end close to the extruder; an air outlet (16) is provided at one end of the cooling box (2) close to the air cooler, and the air outlet (16) and the air nozzle (11) are respectively located on both sides of the water outlet (5).

5. The cooling device for producing special control cables according to claim 1 is characterized in that: A convex plate (6) is fixedly connected to the center of the bottom of the cooling trough (3), and the water outlet (5) extends to the bottom of the convex plate (6).

6. The cooling device for producing special control cables according to claim 1, characterized in that: A notch (19) is formed on one of the side walls of the cooling box (2); a sealing plate (20) is provided on the cooling box (2) at a position corresponding to the notch (19) through hinged rotation.

7. The cooling device for producing special control cables according to claim 1 is characterized in that: The cooling trough (3) is rotatably connected to rollers (4) evenly distributed therein.

8. The cooling device for producing special control cables according to claim 1, characterized in that: The bottom of the water receiving trough (7) is relatively deep; a filter layer (8) is detachably provided at the bottom of the water receiving trough (7).

9. The cooling device for producing special control cables according to claim 1, characterized in that: An electric push rod (12) is fixedly arranged below the base (1), and an output end of the electric push rod (12) is connected to the bottom of the water receiving tank (7).

10. A cooling process for producing special control cables, applicable to a cooling device for producing special control cables as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Cooling water is placed in the cooling tank (3) or the water receiving tank (7), and the cooling water is continuously circulated in the cooling tank (3) and the water receiving tank (7) by means of a circulation pump (10), a water curtain is formed during the circulation process, and the cooling water is cooled by means of air; S2: Leading the special control cable from the extruder into the cooling tank (3), so that it exchanges heat with the cooling water in the cooling tank (3), thereby cooling down; S3: After a period of time, if the temperature of the cooling water still cannot meet the cable cooling requirement, cold air is introduced into the air nozzle (11) through a cooling air fan, so that the formed wind curtain accelerates the cooling speed of the water curtain, thereby making the cooling water meet the cooling requirement of the special control cable; S4: After the special control cable is cooled, it is dried to remove water droplets attached to the cable surface; S5: Use the cable reel to reel and store the special control cable.

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