Fire resistant cable jacket cooling device

Abstract

The application relates to the technical field of cooling devices, and discloses a fireproof cable sheath cooling device which comprises a vortex-adjustable water inlet mechanism and a middle liquid driving mechanism. The fireproof cable sheath cooling device can make the cooling liquid located at the periphery of the cable sheath in a vortex motion state around the cable sheath. The vortex state can make a large amount of cooling liquid in motion contact with the cable sheath, so that the heat in the cable sheath is taken away in time. Due to the fluidity of the liquid, the low-temperature cooling liquid can continuously contact the cable sheath to perform heat transfer, so the device has the function of efficient cooling. In addition, the high-temperature end of the cable sheath contacts the heated cooling liquid, so that the cable sheath can be cooled at a relatively stable temperature difference in the cooling process, thereby reducing the occurrence of negative phenomena caused by too large temperature difference.

Description

Technical Field

[0001] This invention relates to the field of cooling device technology, specifically to a fireproof cable sheathing cooling device. Background Technology

[0002] After the cable is sheathed (covered with an outer sheath), it needs to be rapidly water-cooled and shaped. Generally, multi-stage water cooling is used to control the cooling speed of the cable and prevent the outer sheath from wrinkling, shrinking and cracking. Multi-stage water cooling tanks are usually separate water circulation systems to better control the water temperature of each tank. Multi-stage water tanks are relatively long and consume a large amount of water.

[0003] To this end, Chinese Patent Publication No. CN117292898A discloses "A Cooling Device for Fireproof Cable Sheathing," the main structure of which includes a frame and a forming water tank, a centralized heat dissipation box, and a secondary cooling water tank mounted on the frame. The sheathed cable passes sequentially through the forming water tank, the centralized heat dissipation box, and the secondary cooling water tank. The centralized heat dissipation box includes a box body and a rotating wheel rotatably connected inside the box body. The rotating wheel has a hollow mesh structure. A water pump is mounted on the frame, which pumps high-temperature water from the forming water tank into the rotating wheel along the axial direction. The forming water tank is connected to the secondary cooling water tank for secondary cooling. The water tank is connected to a cold water source; the cable pulled from the forming water tank is wound several times on the rotating wheel before entering the secondary cooling water tank. An exhaust pipe is installed on the top of the box, which is connected to the air inlet of a blower. In this fireproof cable sheathing cooling device, the high-temperature water entering the rotating wheel is thrown outward during the rotation of the rotating wheel and contacts the cable through the mesh rotating wheel. At this time, because the cable above the liquid surface in the box is "sprayed with water", a small amount of high-temperature water is dispersed on a large number of cables. The heat dissipation of the cable will rapidly heat the water. During the vaporization and heat absorption process, the surface of the cable is quickly cooled down. At the same time, the water vapor is extracted.

[0004] However, the cable sheath in the cooling water tank is still immersed in the cooling liquid. Since the cooling liquid is in a stagnant or slow-flowing state, the cooling liquid near the cable sheath is difficult to transfer heat to the outside in time after being heated to a high temperature, while the cooling liquid far away from the cable sheath cannot provide a higher heat transfer effect. Therefore, the cooling effect of the cooling liquid on the cable sheath is poor. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a cooling device for fire-resistant cable sheaths. This device enables the cooling liquid surrounding the cable sheath to swirl around it. This swirling motion allows for significant contact between the cooling liquid and the cable sheath, effectively removing heat from the sheath. Furthermore, the fluidity of the liquid ensures continuous heat transfer through constant contact between the low-temperature cooling liquid and the cable sheath, resulting in highly efficient cooling. Additionally, because the high-temperature end of the cable sheath contacts the heated cooling liquid, the cooling process achieves a relatively stable temperature difference, minimizing the negative effects of excessive temperature variations and thus resolving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fireproof cable sheath cooling device, comprising an inlet water storage pipe and a outlet water storage pipe fixedly installed on the top of a bottom support base, a first water storage cooling chamber disposed inside the inlet water storage pipe and the outlet water storage pipe and open at both ends, a transverse limiting rod installed inside the first water storage cooling chamber and capable of limiting and supporting the cable sheath, and a through-hole disposed on the top of the inlet water storage pipe and the outlet water storage pipe and capable of allowing the cable sheath to pass through the first water storage cooling chamber, and further comprising a vortex adjustable water inlet mechanism, which is internally provided with a fixedly installed end of the outlet water storage pipe and capable of allowing the cable sheath to pass through the first water storage cooling chamber. The system includes an annular hollow shell into which liquid flows into the No. 1 water storage cooling chamber; a guide plate rotatably installed inside the annular hollow shell that allows the flowing water to produce an oblique flow effect, thereby causing the water to flow in a vortex form in the No. 1 water storage cooling chamber; a rotating plate located outside the annular hollow shell that can drive the guide plate to change angle; and a central liquid drive mechanism, which internally includes a central water storage pipe installed between the inlet water storage pipe and the outlet water storage pipe to achieve a liquid transfer effect, and a flow-guiding vertical plate structure set on the inner circumference of the central water storage pipe that can cause the surrounding liquid to generate a vortex effect when rotated.

[0007] Preferably, the vortex adjustable water inlet mechanism includes an annular hollow shell. A first cylindrical liquid flow chamber is disposed inside one end of the annular hollow shell, and a second cylindrical liquid flow chamber is disposed inside the other end of the annular hollow shell. One end of the annular hollow shell has a second liquid connection channel with an integral structure connecting to the first cylindrical liquid flow chamber. The port of the second liquid connection channel is fixedly connected to one end of the drain pipe. The annular hollow shell also has a first liquid connection channel with an integral structure connecting to the second cylindrical liquid flow chamber. The interior of the annular hollow shell has an arc-shaped liquid flow notch connecting to one end of the second cylindrical liquid flow chamber and located around the first cylindrical liquid flow chamber. The annular hollow shell has a notch located on the outer circumference of the first cylindrical liquid flow chamber and inside the arc-shaped liquid flow notch. A second annular liquid flow chamber is provided in the area between them. Inside the annular hollow shell, a first annular liquid flow chamber is provided to connect the inner area of ​​the arc-shaped liquid flow gap and the outer area of ​​the second annular liquid flow chamber. Inside the annular hollow shell, multiple rotatable axial rotating shafts are installed through bearings. The shaft of each axial rotating shaft passes through the second annular liquid flow chamber and the second cylindrical liquid flow chamber in sequence, and one end extends to the outer area of ​​the first liquid docking channel. A guide plate is fixedly installed on the outer periphery of the shaft located inside the second annular liquid flow chamber. A fastening rubber ring that can dampen the rotation of the axial rotating shaft is installed on the internal solid structure part of the axial rotating shaft that passes through the annular hollow shell. A rotating plate is fixedly installed on the end of the axial rotating shaft located outside the annular hollow shell.

[0008] Preferably, the fastening rubber ring is a ring structure made of rubber material, and the fastening rubber ring and the axial rotating shaft form a frictional force due to pressure at the contact point, and the frictional force is sufficient to keep the axial rotating shaft stable during operation.

[0009] Preferably, in the initial state, the included angles between the plurality of guide plates and the axis of the first cylindrical liquid flow cavity are consistent.

[0010] Preferably, the central liquid drive mechanism includes a central water storage pipe, with three liquid docking channels integrally formed at both ends of the central water storage pipe, a second water storage cooling chamber inside the central water storage pipe, an annular protrusion integrally formed at the center of the outer circumference of the central water storage pipe, a belt groove with an inward concave structure on the outer circumference of the annular protrusion, an internal interface connecting to the end of the second water storage cooling chamber inside the third liquid docking channel, the third liquid docking channel being installed on the outer circumference of the opposite ends of the inlet water storage pipe and the outlet water storage pipe via a mechanical seal structure inside the internal interface, and multiple annular array-type integrated flow guiding plate structures on the inner circumference of the central water storage pipe, the flow guiding plate structures having rounded corners on the end face pointing towards the axis of the second water storage cooling chamber.

[0011] Preferably, the symmetrical plane of the diversion plate structure points to the axis of the second water storage cooling chamber.

[0012] Preferably, during operation, the belt groove of the annular protrusion structure is linked to a pulley mounted on the rotor end of the drive motor via a belt.

[0013] Preferably, it also includes a friction positioning mechanism, which has an inner ring body that can drive multiple rotating plates to rotate and an arc-shaped contact plate that abuts against the outer circumferential surface of the inner ring body to control the movement state of the inner ring body.

[0014] Preferably, the friction positioning mechanism includes an outer annular body and a longitudinal hollow outer shell. The outer annular body has a centrally located outer annular opening fixedly mounted on the outer circumferential surface of one end of the hollow annular shell. An inner annular body, capable of rotation, is mounted inside the outer annular opening via a bearing. The inner annular body has a centrally located inner annular hole. A contact rubber ring is embedded in the inner circumferential surface of the inner annular body, located around the rotating plate. The longitudinal hollow outer shell is located around the outer annular body, and its outer circumferential surface is fixedly connected to the outer circumferential surface of the hollow annular shell via a curved connecting rod. The interior of the longitudinal hollow outer shell contains a longitudinal component movable cavity. The hollow outer shell has a lower component through-hole at the bottom and an upper component through-hole at the top. Inside the longitudinal hollow outer shell, there is an inner movable plate that can move axially along the longitudinal component movable cavity. A lower telescopic rod that passes through the lower component through-hole is fixedly installed at the bottom of the inner movable plate, and an upper telescopic rod that passes through the upper component through-hole is fixedly installed at the top of the inner movable plate. The lower telescopic rod has an arc-shaped abutment plate that is integral with it and can abut against the outer circumferential surface of the inner ring at the bottom. A compressed helical spring is sleeved around the rod body inside the longitudinal component movable cavity of the upper telescopic rod, and a pull plate is fixedly installed at the top of the upper telescopic rod.

[0015] Preferably, the abutting rubber ring and the corresponding circumferential surface of the rotating plate are in a squeezing abutting state, and this state is sufficient to keep the rotating plate stable during operation.

[0016] Compared with the prior art, the present invention provides a fireproof cable sheathing cooling device, which has the following features:

[0017] Beneficial effects:

[0018] 1. It enables the cooling liquid located around the cable sheath to swirl around the cable sheath. This swirling motion allows a large amount of coolant to come into contact with the cable sheath, thus effectively removing heat from the cable sheath. Due to the fluidity of the liquid, the low-temperature coolant continuously contacts the cable sheath for heat transfer, resulting in efficient cooling. Furthermore, because the high-temperature end of the cable sheath is in contact with the heated coolant, the cable sheath cools down with a relatively stable temperature difference during the cooling process, thereby reducing the negative effects caused by excessive temperature differences.

[0019] 2. By setting up an adjustable vortex water inlet mechanism, when the refrigerant passes through the second annular liquid flow chamber, the flow direction of the refrigerant can be changed by changing the angle between the guide plate and the axis of the first cylindrical liquid flow chamber. This will cause the refrigerant to flow towards the tail in the form of a vortex. The larger the angle, the worse the vortex effect, and vice versa. This achieves an adjustable vortex flow state when the refrigerant enters.

[0020] 3. By setting up a central liquid drive mechanism, the refrigerant flowing near the diversion plate structure will have an enhanced vortex effect, thereby ensuring that the vortex refrigerant can continuously cool the cable sheath and reduce the occurrence of poor vortex effect due to resistance in the tail liquid flow. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0023] Figure 3 This is a perspective view of the vortex adjustable water inlet mechanism in this invention;

[0024] Figure 4 This is a three-dimensional cross-sectional view of the vortex adjustable water inlet mechanism in this invention from the right perspective.

[0025] Figure 5 This is a three-dimensional cross-sectional view of the vortex adjustable water inlet mechanism in this invention from the main perspective.

[0026] Figure 6 This is a three-dimensional cross-sectional view of the central liquid drive mechanism in this invention from a right-hand perspective;

[0027] Figure 7 This is a perspective cross-sectional view of the central liquid-driven mechanism in this invention from the main viewpoint;

[0028] Figure 8 This is a three-dimensional cross-sectional view of the friction-type positioning mechanism in this invention.

[0029] The components include: 1. Inlet water storage pipe; 2. Outlet water storage pipe; 3. Bottom support base; 4. No. 1 water storage cooling chamber; 5. Through-line notch; 6. Lateral limit rod; 7. Vortex adjustable water inlet mechanism; 71. Annular hollow shell; 72. No. 1 liquid docking channel; 73. No. 2 liquid docking channel; 74. No. 1 cylindrical liquid flow chamber; 75. No. 2 cylindrical liquid flow chamber; 76. Arc-shaped liquid flow notch; 77. No. 1 annular liquid flow chamber; 78. No. 2 annular liquid flow chamber; 79. Fastening rubber ring; 710. Axial rotation shaft; 711. Guide plate; 712. Rotating plate; 8. Middle liquid drive mechanism; 81. Middle water storage pipe; 82. Annular... 83. Raised structure; 84. Belt groove; 85. No. 3 liquid docking channel; 86. Internal docking interface; 87. No. 2 water storage cooling chamber; 88. Drainage vertical plate structure; 99. Rounded corner structure; 90. Friction positioning mechanism; 91. Outer ring body; 92. Outer ring opening; 93. Inner ring body; 94. Inner ring hole; 95. Abutting rubber ring; 96. Longitudinal hollow shell; 97. Curved connecting rod; 98. Longitudinal component movable cavity; 99. Lower component through hole; 910. Upper component through hole; 911. Inner movable plate; 912. Lower telescopic rod; 913. Arc-shaped abutting plate; 914. Upper telescopic rod; 915. Pull plate; 916. Helical spring; 10. Cable sheath. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1 and Figure 2A fireproof cable sheath cooling device includes an inlet water storage pipe 1 and an outlet water storage pipe 2 fixedly installed on the top of a bottom support 3; a first water storage cooling chamber 4 located inside the inlet water storage pipe 1 and the outlet water storage pipe 2 with both ends open; a transverse limiting rod 6 installed inside the first water storage cooling chamber 4 to limit and support the cable sheath 10; and a through-hole 5 located on the top of the inlet water storage pipe 1 and the outlet water storage pipe 2 to allow the cable sheath 10 to pass through the first water storage cooling chamber 4. The cable sheath 10 to be cooled is inserted into the two first water storage cooling chambers 4 through one through-hole 5 and then exits through the other through-hole 5. At the same time, the cable sheath 10 is located on the upper part of the transverse limiting rod 6. The first liquid is then applied to the cable sheath 10. The drain port of the inlet water storage pipe 1 and the connection channel 72 are connected to the liquid circuit of a refrigeration equipment that provides refrigerant, so that the refrigerant can be discharged from the refrigeration equipment into the first liquid connection channel 72. After cooling, the refrigerant flows back into the refrigeration equipment through the drain port of the inlet water storage pipe 1, forming a complete liquid refrigeration circuit. During the cooling process, it is necessary to ensure that the movement direction of the cable sheath 10 is opposite to the flow direction of the refrigerant in the first water storage cooling chamber 4. The high-temperature cable sheath 10 will meet the heated refrigerant, while the low-temperature cable sheath 10 will meet the unheated refrigerant, thereby reducing the temperature difference between the cable sheath 10 and the refrigerant when they meet and improving the finished product quality of the cable sheath 10 after cooling.

[0032] To achieve an adjustable-angle vortex flow pattern for the refrigerant upon entry, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A vortex-adjustable water inlet mechanism 7 needs to be installed. Inside this mechanism are an annular hollow shell 71 fixedly installed at the end of the water storage pipe 2, allowing liquid to flow into the first water storage cooling chamber 4; a guide plate 711 rotatably installed inside the annular hollow shell 71, causing the flowing water to create an oblique angle flow effect, thus causing the water to flow in a vortex form within the first water storage cooling chamber 4; and a rotating plate 712 located outside the annular hollow shell 71, capable of causing the guide plate 711 to change angle. The refrigerant sequentially passes through the first liquid docking channel 72, the second cylindrical liquid flow chamber 75, and the arc... The refrigerant flows into the first water storage cooling chamber 4 through the liquid flow notch 76, the first annular liquid flow chamber 77, the second annular liquid flow chamber 78, the first cylindrical liquid flow chamber 74, and the second liquid docking channel 73. When the refrigerant passes through the second annular liquid flow chamber 78, the flow direction of the refrigerant can be changed by changing the angle between the axis of the guide plate 711 and the first cylindrical liquid flow chamber 74. This will cause the refrigerant to flow towards the tail in the form of a vortex. The larger the angle, the worse the vortex effect, and vice versa. This achieves an adjustable vortex flow state when the refrigerant enters.

[0033] For details regarding the specific structure of the vortex adjustable water inlet mechanism 7, please refer to [link / reference needed]. Figure 3 , Figure 4 and Figure 5The system includes an annular hollow shell 71. A first cylindrical liquid flow chamber 74 is disposed inside one end of the annular hollow shell 71, and a second cylindrical liquid flow chamber 75 is disposed inside the other end of the annular hollow shell 71. A second liquid connection channel 73, integrally formed and connected to the first cylindrical liquid flow chamber 74, is disposed at one end of the annular hollow shell 71. The port of the second liquid connection channel 73 is fixedly connected to one end of the water storage pipe 2. The first liquid flow chamber 74, integrally formed and connected to the second cylindrical liquid flow chamber 75, is disposed at one end of the annular hollow shell 71. The docking channel 72, the annular hollow shell 71 has an arc-shaped liquid flow notch 76 inside, connecting one end of the second cylindrical liquid flow cavity 75 and located around the first cylindrical liquid flow cavity 74. The annular hollow shell 71 has a second annular liquid flow cavity 78 in the area between the outer circumference of the first cylindrical liquid flow cavity 74 and the inner side of the arc-shaped liquid flow notch 76. The annular hollow shell 71 also has a first annular liquid flow cavity 77 inside, connecting the inner area of ​​the arc-shaped liquid flow notch 76 and the outer area of ​​the second annular liquid flow cavity 78. The annular hollow outer shell 71 contains multiple rotatable axial rotating shafts 710 mounted inside via bearings. The shafts of these axial rotating shafts 710 sequentially pass through a second annular liquid flow cavity 78 and a second cylindrical liquid flow cavity 75, with one end extending to the outer periphery of a first liquid docking channel 72. Guide plates 711 are fixedly mounted around the shafts of the axial rotating shafts 710 located inside the second annular liquid flow cavity 78. Initially, the angles between the multiple guide plates 711 and the axis of the first cylindrical liquid flow cavity 74 are consistent. A fastening rubber ring 79 is installed in the internal solid structure of the annular hollow shell 71 to dampen the rotation of the axial rotation shaft 710. To ensure operational stability, the fastening rubber ring 79 is a ring structure made of rubber material. The fastening rubber ring 79 and the axial rotation shaft 710 form a frictional force at the contact point, and this frictional force is sufficient to keep the axial rotation shaft 710 stable during operation. A rotating plate 712 is fixedly installed at one end of the axial rotation shaft 710 located outside the annular hollow shell 71.

[0034] To enhance the vortex flow of the refrigerant in the central region, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 6 and Figure 7A central liquid drive mechanism 8 needs to be set up. Inside this mechanism is a central water storage pipe 81 installed between the inlet water storage pipe 1 and the outlet water storage pipe 2, which enables liquid transfer. A flow-guiding plate structure 87 is located on the inner circumference of the central water storage pipe 81 and, when rotated, creates a vortex effect in the surrounding liquid. During operation, the belt groove 83 of the annular protrusion structure 82 is linked to a pulley installed at the rotor end of a drive motor via a belt. When the drive motor is started, the rotor drives the central water storage pipe 81 and multiple flow-guiding plate structures 87 to rotate via the belt. It is important to note that the rotation direction of the central water storage pipe 81 must be consistent with the rotation direction of the refrigerant liquid in the vortex state. The refrigerant liquid flowing near the flow-guiding plate structure 87 will have its vortex effect enhanced, thus ensuring that the vortex-forming refrigerant liquid continuously cools the cable sheath 10, reducing the occurrence of poor vortex effect due to resistance in the tail liquid flow.

[0035] For details regarding the structure of the central liquid drive mechanism 8, please refer to [link / reference]. Figure 6 and Figure 7 This includes a central water storage pipe 81, with three integrated liquid connection channels 84 at both ends of the central water storage pipe 81. A second water storage and cooling chamber 86 is located inside the central water storage pipe 81. An annular protrusion 82, integrally formed with the central water storage pipe 81, is located at the center of its outer circumference. A concave belt groove 83 is located on the outer circumference of the annular protrusion 82. An internal connection interface 85, connecting to the end of the second water storage and cooling chamber 86, is located inside the three liquid connection channels 84. The No. 3 liquid docking channel 84 is installed on the outer circumferential surface of the opposite ends of the inlet water storage pipe 1 and the outlet water storage pipe 2 through a mechanical seal structure inside the inner docking interface 85. The inner circumferential surface of the middle water storage pipe 81 is provided with multiple annular array-type integrated diversion plate structures 87. The symmetrical plane of the diversion plate structure 87 points to the axis of the No. 2 water storage cooling chamber 86. The end face of the diversion plate structure 87 pointing to the axis of the No. 2 water storage cooling chamber 86 is provided with a rounded corner structure 88.

[0036] To achieve synchronized angle adjustment of the rotating plate 712, please refer to... Figure 1 , Figure 2 and Figure 8A friction-type positioning mechanism 9 is required, which contains an inner ring body 93 that can drive multiple rotating plates 712 to rotate, and an arc-shaped contact plate 913 that abuts against the outer circumferential surface of the inner ring body 93 to control the movement of the inner ring body 93. When the pull plate 915 is pulled upward, the helical spring 916 is further compressed, and the arc-shaped contact plate 913 moves upward and disengages from the inner ring body 93. At this time, the inner ring body 93 can be rotated according to the required angle. The inner ring body 93 will drive the contact rubber ring 95 to rotate. Under the action of friction, the contact rubber ring 95 causes each rotating plate 712 to rotate synchronously, thereby changing the tilt angle of the rotating plate 712 and thus realizing the synchronous angle adjustment of the rotating plate 712. After the angle adjustment is completed, the pulling force of the pull plate 915 is released, and the arc-shaped contact plate 913, under the elastic action of the helical spring 916, abuts against the outer circumferential surface of the inner ring body 93 again, which has a braking effect on the inner ring body 93.

[0037] For details regarding the specific structure of the friction positioning mechanism 9, please refer to [link / reference]. Figure 8 The rotating plate 712 includes an outer annular body 91 and a longitudinal hollow outer shell 96. The outer annular body 91 has a centrally located outer annular opening 92 fixedly mounted on the outer circumferential surface of one end of the hollow annular shell 71. An inner annular body 93, capable of rotation, is mounted inside the outer annular opening 92 via a bearing. The inner annular body 93 has a centrally located inner annular hole 94. A rubber ring 95 is embedded in the inner circumferential surface of the inner annular body 93, located around the rotating plate 712. The rubber ring 95 and the corresponding circumferential surface of the rotating plate 712 are in a compressive contact state, sufficient to ensure the stability of the rotating plate 712 during operation. The longitudinal hollow outer shell 96 is located around the outer annular body 91, and its outer circumferential surface is fixedly connected to the outer circumferential surface of the hollow annular shell 71 via a curved connecting rod 97. The interior of the longitudinal hollow outer shell 96... The longitudinal hollow outer shell 96 is provided with a longitudinal component movable cavity 98. The bottom end of the longitudinal hollow outer shell 96 is provided with a lower component through hole 99 and the top end is provided with an upper component through hole 910. The longitudinal hollow outer shell 96 has an inner movable plate 911 that can move along the axial direction of the longitudinal component movable cavity 98 inside the longitudinal component movable cavity 98. The bottom end of the inner movable plate 911 is fixedly installed with a lower telescopic rod 912 that passes through the lower component through hole 99. The top end of the inner movable plate 911 is fixedly installed with an upper telescopic rod 914 that passes through the upper component through hole 910. The bottom end of the lower telescopic rod 912 is provided with an arc-shaped abutment plate 913 that is integral with it and can abut against the outer circumferential surface of the inner annular body 93. The upper telescopic rod 914 has a coil spring 916 in a compressed state placed around the rod body inside the longitudinal component movable cavity 98. The top end of the upper telescopic rod 914 is fixedly installed with a pull plate 915.

[0038] The specific working principle of this invention is as follows: the cable sheath 10 to be cooled is inserted into two No. 1 water storage cooling chambers 4 through one through-hole 5 and then out through another through-hole 5. At the same time, the cable sheath 10 is located on the upper part of the horizontal limiting rod 6. Then, the No. 1 liquid docking channel 72 and the drain port of the inlet water storage pipe 1 are docked with the liquid circuit of a refrigeration device that provides refrigerant, so that the refrigerant can be discharged from the refrigeration device into the No. 1 liquid docking channel 72. The cooled refrigerant flows back into the refrigeration device through the drain port of the inlet water storage pipe 1, forming a complete liquid refrigeration circuit. During the cooling process, it should be noted that the movement direction of the cable sheath 10 should be opposite to the flow direction of the refrigerant in the No. 1 water storage cooling chamber 4. The high temperature cable sheath 10 will meet the heated refrigerant, while the low temperature cable sheath 10 will meet the unheated refrigerant.

[0039] When the refrigeration equipment is started, the refrigerant flows sequentially through the No. 1 liquid docking channel 72, the No. 2 cylindrical liquid flow chamber 75, the arc-shaped liquid flow notch 76, the No. 1 annular liquid flow chamber 77, the No. 2 annular liquid flow chamber 78, the No. 1 cylindrical liquid flow chamber 74, and the No. 2 liquid docking channel 73 into the No. 1 water storage cooling chamber 4. When the refrigerant flows through the No. 2 annular liquid flow chamber 78, the flow direction of the refrigerant can be changed by changing the angle between the axis of the guide plate 711 and the axis of the No. 1 cylindrical liquid flow chamber 74, which will cause the refrigerant to flow towards the tail in the form of a vortex.

[0040] At the same time, the drive motor is started, and the rotor will drive the central water storage pipe 81 and multiple diversion plate structures 87 to rotate via the belt. It should be noted that the rotation direction of the central water storage pipe 81 needs to be consistent with the rotation direction of the refrigerant in the vortex state. The refrigerant flowing near the diversion plate structure 87 will have an enhanced vortex effect.

[0041] This reduces the temperature difference between the cable sheath 10 and the refrigerant when they meet, thereby improving the quality of the cable sheath 10 after cooling.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof cable jacket cooling device, comprising an incoming water storage pipe and an outgoing water storage pipe fixedly installed on the top of a bottom support base, a No. 1 water storage cooling cavity provided inside the incoming water storage pipe and the outgoing water storage pipe and having both ends in an open state, a transverse limiting rod installed inside the No. 1 water storage cooling cavity and capable of limiting and supporting the cable jacket, and a wire passing gap provided on the top of the incoming water storage pipe and the outgoing water storage pipe and capable of allowing the cable jacket to pass into the No. 1 water storage cooling cavity. Also includes, The vortex adjustable water inlet mechanism is internally provided with a ring-shaped hollow shell fixedly installed at the end of the discharge water storage pipe and capable of allowing liquid to flow into the No. 1 water storage cooling cavity, a guide plate rotatably installed inside the ring-shaped hollow shell and capable of allowing the water flow to produce an inclined angle flow effect, thereby making the water flow in the No. 1 water storage cooling cavity in a vortex form, and a rotating plate located outside the ring-shaped hollow shell and capable of driving the guide plate to change the angle; And a middle liquid driving mechanism internally provided with a middle water storage pipe installed between the inlet water storage pipe and the discharge water storage pipe and capable of achieving a liquid transmission effect, and a drainage vertical plate structure arranged on the inner circumferential surface of the middle water storage pipe and capable of producing a vortex effect on the surrounding liquid when rotating; The vortex adjustable water inlet mechanism includes a ring-shaped hollow shell, one end of the ring-shaped hollow shell is internally provided with a No. 1 cylindrical liquid flow cavity, the other end of the ring-shaped hollow shell is internally provided with a No. 2 cylindrical liquid flow cavity, one end of the ring-shaped hollow shell is provided with a No. 2 liquid butt joint channel of an integral structure and communicating with the No. 1 cylindrical liquid flow cavity, the port of the No. 2 liquid butt joint channel is fixedly butt jointed with one end of the discharge water storage pipe, one end of the ring-shaped hollow shell is provided with a No. 1 liquid butt joint channel of an integral structure and communicating with the No. 2 cylindrical liquid flow cavity, the inside of the ring-shaped hollow shell is provided with an arc-shaped liquid flow gap communicating with one end of the No. 2 cylindrical liquid flow cavity and located at the periphery of the No. 1 cylindrical liquid flow cavity, the ring-shaped hollow shell is provided with a No. 2 annular liquid flow cavity in the region between the outer circumferential surface of the No. 1 cylindrical liquid flow cavity and the inner side of the arc-shaped liquid flow gap, the inside of the ring-shaped hollow shell is provided with a No. 1 annular liquid flow cavity for communicating the inner side region of the arc-shaped liquid flow gap and the outer side region of the No. 2 annular liquid flow cavity, a plurality of rotatable axial rotating shafts are installed in the inside of the ring-shaped hollow shell through bearings, the shaft bodies of the axial rotating shafts sequentially pass through the No. 2 annular liquid flow cavity and the No. 2 cylindrical liquid flow cavity, extend to the peripheral region of the No. 1 liquid butt joint channel at one end, the guide plate is fixedly installed at the periphery of the shaft body located inside the No. 2 annular liquid flow cavity, the axial rotating shaft is installed at the internal solid structure part of the ring-shaped hollow shell through a fastening rubber ring capable of producing a damping effect on the rotation of the axial rotating shaft, the rotating plate is fixedly installed at one end of the axial rotating shaft located outside the ring-shaped hollow shell; In the initial state, the included angle between the plurality of guide plates and the axis of the No. 1 cylindrical liquid flow cavity is consistent; Also includes a friction type positioning mechanism internally provided with an inner ring-shaped body capable of driving a plurality of rotating plates to rotate and an arc-shaped abutting plate abutting the outer circumferential surface of the inner ring-shaped body, thereby controlling the movement state of the inner ring-shaped body.

2. A fire resistant cable jacket cooling apparatus according to claim 1, wherein: The fastening rubber ring is a ring body structure made of rubber material, and the fastening rubber ring and the axial rotating shaft form a friction force caused by pressure at the contact part, and the friction force is sufficient to make the axial rotating shaft stable during work.

3. A fire resistant cable jacket cooling apparatus as defined in claim 1, wherein: The middle liquid driving mechanism comprises a middle water storage pipe, the two ends of the middle water storage pipe are provided with a No. 3 liquid docking channel in an integral structure, the inside of the middle water storage pipe is provided with a No. 2 water storage cooling cavity, the middle of the outer circumferential surface of the middle water storage pipe is provided with an annular protruding structure in an integral structure, the outer circumferential surface of the annular protruding structure is provided with a belt clamping groove in a concave structure, the inside of the No. 3 liquid docking channel is provided with an internal docking port communicating with the end of the No. 2 water storage cooling cavity, the No. 3 liquid docking channel is installed on the outer circumferential surface of the wire inlet water storage pipe and the wire outlet water storage pipe at opposite ends through a mechanical sealing structure inside the internal docking port, the inner circumferential surface of the middle water storage pipe is provided with a plurality of annular array type and integral structure drainage vertical plate structures, the end surface of the drainage vertical plate structure pointing to the axis of the No. 2 water storage cooling cavity is provided with a rounded corner structure.

4. A fire resistant cable jacket cooling apparatus as defined in claim 3, wherein: The symmetry plane of the drainage vertical plate structure points to the axis of the No. 2 water storage cooling cavity.

5. A fire resistant cable jacket cooling apparatus as defined in claim 3, wherein: In operation, the belt clamping groove of the annular protruding structure is connected with a belt pulley installed at the end of the rotor of the driving motor through a belt.

6. A fire resistant cable jacket cooling apparatus according to claim 1, wherein: The friction type positioning mechanism comprises an outer annular body and a longitudinal hollow shell, the center of the outer annular body is provided with an outer ring port fixedly installed on the outer circumferential surface of one end of the annular hollow shell, the outer annular body is rotatably installed with an inner annular body inside the outer ring port through a bearing, the center of the inner annular body is provided with an inner ring hole, the inner circumferential surface of the inner annular body at the periphery of the rotating plate is embedded with a contact rubber ring, the longitudinal hollow shell is at the periphery of the outer annular body, and the outer circumferential surface of the longitudinal hollow shell is fixedly connected with the outer circumferential surface of the annular hollow shell through a curved connecting rod, the inside of the longitudinal hollow shell is provided with a longitudinal component movable cavity, the bottom end of the longitudinal hollow shell is provided with a lower component perforation, and the top end is provided with an upper component perforation, the longitudinal hollow shell is installed with an inner movable plate capable of moving axially along the longitudinal component movable cavity inside the longitudinal component movable cavity, the bottom end of the inner movable plate is fixedly installed with a lower telescopic rod penetrating through the lower component perforation, the top end of the inner movable plate is fixedly installed with an upper telescopic rod penetrating through the upper component perforation, the bottom end of the lower telescopic rod is provided with an arc-shaped contact plate in an integral structure with the lower telescopic rod and capable of contacting the outer circumferential surface of the inner annular body, the outer periphery of the rod body of the upper telescopic rod inside the longitudinal component movable cavity is sleeved with a spiral spring in a compressed state, and the top end of the upper telescopic rod is fixedly installed with a pull plate.

7. A fire resistant cable jacket cooling apparatus according to claim 6, wherein: The contact rubber ring and the corresponding circumferential surface of the rotating plate are in a squeezing contact state, and this state is sufficient to make the rotating plate stable in operation.

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