Cooling device for fireproof cable production

Abstract

The utility model relates to a cooling device for fireproof cable production, and relates to the technical field of cable production equipment, the cooling device comprises a water cooling tank, a water storage tank with an upper opening, a delivery pump and a heat exchanger, the two ends of the water cooling tank are provided with openings for cables to pass through, and the water cooling tank is communicated with a water inlet of the water storage tank through a pipeline; a cooling liquid pipeline and a cooling pipeline are arranged in the heat exchanger, the outlet end of the conveying pump is communicated with a water inlet of the cooling pipeline in the heat exchanger through a pipeline, and a water outlet of the cooling pipeline in the heat exchanger is communicated with the water cooling tank through a pipeline. The cable cooling device has the advantages that the cable is cooled, water is recycled, the production cost is reduced, cleaning is facilitated, and the cable cooling efficiency and the cooling effect are improved.

Description

Technical Field

[0001] The present application relates to the technical field of cable production equipment, and in particular to a cooling device for fireproof cable production. Background Art

[0002] Fireproof cables can maintain the integrity of the circuit in the event of a fire, ensuring the safe and normal operation of key emergency systems. They are widely used in fire alarm systems, smoke detection systems, emergency lighting power systems and public broadcasting systems in large shopping malls, hospitals, office spaces, stations, airports, residential buildings and other buildings.

[0003] Fireproof cables are generally coated with a layer of magnesium oxide material on the outside of the cable. The magnesium oxide material layer is coated on the outside of the cable core by injection molding. There is an annealing step in the production process of magnesium oxide cables.

[0004] The surface temperature of the annealed magnesium oxide cable is high, and the magnesium oxide cable is easily oxidized, which affects the performance of the magnesium oxide cable. Therefore, the annealed magnesium oxide cable needs to be cooled down. The cooling is generally carried out by water cooling, and the cable is cooled by water. At the same time, in order to protect the magnesium oxide cable, an antioxidant needs to be added to the coolant. In the prior art, the cooling of the magnesium oxide cable is generally carried out by injecting coolant into the cooling tank, and then adding antioxidant. The cooling tank needs to continuously inject coolant and antioxidant. The coolant after heat exchange needs to be treated before discharge. It is not only difficult to clean the cooling tank used to cool the magnesium oxide cable, but also the coolant needs to be treated before discharge, and the consumption of antioxidant is too large, which increases the cost to a certain extent. Utility Model Content

[0005] In order to solve the problems of low cooling efficiency, low resource utilization and high production cost of existing cooling devices for fireproof cables in the prior art, the present application provides a cooling device for fireproof cable production.

[0006] A cooling device for fireproof cable production provided in the present application adopts the following technical solution: a cooling device for fireproof cable production, comprising a water cooling trough, with openings for cables to pass through opened at both ends of the water cooling trough, and also comprising a water storage tank with an opening on the top, a delivery pump and a heat exchanger, the water cooling trough is connected to the water inlet of the water storage tank through a pipeline, the water outlet of the water storage tank is connected to the inlet end of the delivery pump through a pipeline, a coolant pipeline and a cooling pipeline are arranged inside the heat exchanger, the outlet end of the delivery pump is connected to the water inlet of the cooling pipeline in the heat exchanger through a pipeline, and the water outlet of the cooling pipeline in the heat exchanger is connected to the water cooling trough through a pipeline.

[0007] By adopting the above technical scheme, when cooling the cable, the cable is passed from the opening at one end of the water cooling tank to the inside of the water cooling tank and passes out from the opening at the other end. Water is stored in the water tank. Antioxidants are added to the inside of the water tank through the opening above the water tank. The antioxidants are fully mixed with water in the water tank. When cooling, the water in the water tank is transported to the cooling pipeline in the heat exchanger through a pipeline. The coolant pipeline in the heat exchanger contacts with the cooling pipeline and performs heat exchange to reduce the temperature of the water in the cooling pipeline. The cooled water is transported to the water cooling tank through a pipeline through the water outlet of the cooling pipeline of the heat exchanger. The water contacts with the cable in the water cooling tank to cool the cable for heat exchange. The water after heat exchange is transported from the water cooling tank to the water tank through a pipeline for storage. The water in the water tank is preliminarily mixed with the water in the water tank to reduce the temperature. The water in the water tank is then transported to the heat exchanger through a pipeline for cooling to achieve continuous cooling of the cable.

[0008] Optionally, the water cooling tank includes two tank bodies arranged in parallel, the two tank bodies are connected by a pipeline, and rollers for supporting and transporting the cables are arranged inside the tank bodies.

[0009] By adopting the above technical solution, the water cooling tank adopts two connected tank bodies, and coolant is injected into the two tank bodies, which prolongs the heat exchange time between the cable and the coolant and improves the cooling effect of the cable.

[0010] Optionally, a drain pipe and a water inlet pipe are provided on one side of the water cooling tank, one side of the drain pipe is connected to the bottom of the water cooling tank through a hose, and one end of the drain pipe is connected to the water inlet of the water tank; one side of the water inlet pipe is connected to the bottom of the water cooling tank through a hose, and one end of the water inlet pipe is connected to the water outlet of the cooling pipeline in the heat exchanger.

[0011] By adopting the above technical solution, water enters the water inlet pipe through the pipeline after being cooled by the heat exchanger, and then enters the water cooling tank through the hose. The water is evenly distributed through the water inlet pipe, so that water can be simultaneously supplied to multiple tanks for cooling.

[0012] Optionally, an openable and closable end cover is provided above the water cooling tank.

[0013] By adopting the above technical solution, the water cooling tank is closed by the end cover to prevent the water in the water cooling tank and the steam generated during the cooling process from overflowing and polluting the working environment. At the same time, the end cover can be opened to facilitate the operator to observe the cooling condition of the cable and clean the inside of the water cooling tank.

[0014] Optionally, the bottoms of both ends of the water cooling tank are connected to the water inlet of the water storage tank through pipes, and the middle of the bottom of the water cooling tank is connected to the water outlet of the cooling pipeline in the heat exchanger through a pipe.

[0015] By adopting the above technical solution, water enters from the middle of the bottom of the water cooling tank, then flows to both ends of the water cooling tank, and is discharged through the hoses at the bottom of both ends of the water cooling tank, so that the water flows evenly inside the water cooling tank, and the water temperature inside the water cooling tank remains consistent, thereby improving the cooling effect of the cable.

[0016] Optionally, the water tank has an opening at the top, and an end cover is provided at the opening.

[0017] By adopting the above technical solution, an opening and an end cover are provided above the water tank, so that the operator can add antioxidants into the water tank easily.

[0018] Optionally, a filter is arranged in the middle of the water tank, and the filter is arranged between the water inlet and the water outlet of the water tank. One side of the water tank is also connected to a liquid replenishment pipe.

[0019] By adopting the above technical solution, the water after heat exchange enters the water tank and mixes with the water in the water tank. The mixed water is filtered by the filter and discharged from the water outlet into the heat exchanger for cooling and transported to the water cooling to cool the cable. The filter filters the impurities in the water to avoid impurities clogging the pipeline. The replenishment pipeline is used to inject water into the water tank to maintain the circulating water volume.

[0020] Optionally, the water inlet and the water outlet of the coolant pipeline in the heat exchanger are connected to an external water source.

[0021] By adopting the above technical solution, an external water source enters the coolant pipeline through the water inlet, exchanges heat with water in the coolant pipeline to cool the water, and the coolant after heat exchange is discharged through the water outlet for recovery.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. In the present application, a water cooling tank, a water storage tank and a heat exchanger are provided. The water storage tank is used to mix water and antioxidants, and the heat exchanger is used to cool the water, which effectively realizes the cooling of the cable, realizes the repeated recycling of water, reduces the production cost, and the water containing antioxidants is only stored in the water cooling tank and the water storage tank, which is convenient for cleaning, thereby improving the efficiency and cooling effect of the cable cooling;

[0024] 2. In the present application, the water cooling tank is connected with a water inlet pipe in the middle and drainage pipes at both ends. Water enters the water cooling tank from the middle and then flows to both sides, so that the temperature of the water inside the water cooling tank is evenly distributed, and the water can fully contact with the cable for heat exchange, thereby improving the cooling effect on the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a piping schematic diagram of a cooling device for fireproof cable production in an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the water cooling tank structure of a cooling device for fireproof cable production in an embodiment of the present application.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Water cooling tank; 11. Tank body; 12. End cover; 13. Opening; 14. Roller; 15. Connecting pipe; 2. Water storage tank; 21. Filter; 3. Heat exchanger; 31. Coolant pipeline; 32. Cooling pipeline; 4. Delivery pump; 5. Drain pipe; 6. Water inlet pipe; 7. Fluid replenishment pipeline; 8. External water source; 9. Hose. DETAILED DESCRIPTION

[0028] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0029] See also Figure 1-2 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this application. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this application without substantially changing the technical content.

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] This embodiment discloses a cooling device for fireproof cable production.

[0032] Reference Figure 1, including a water cooling tank 1, a water storage tank 2, a delivery pump 4 and a heat exchanger 3. The water cooling tank 1 is hollow inside and has openings at both ends for cables to enter. The water storage tank 2 is arranged on one side of the water cooling tank 1. The water storage tank 2 has an opening above and an end cover is arranged at the opening. The two ends of the water cooling tank 1 are connected with a drain pipe 5 through a pipeline. The middle of the water cooling tank 1 is connected with a water inlet pipe 6 through a pipeline. One end of the drain pipe 5 is connected to the water inlet of the water storage tank 2. The heat exchanger 3 is arranged on one side of the water storage tank 2. The heat exchanger 3 adopts a plate heat exchanger. The heat exchanger 3 is provided with a coolant pipeline 31 and a cooling liquid pipeline 31 for heat exchange. The cooling pipeline 32 and the inlet and outlet of the cooling liquid pipeline 31 are connected to the external water source 8. A filter screen 21 is arranged inside the water storage tank 2, and the filter screen 21 divides the inside of the water storage tank 2 into two cavities. The water inlet is connected to one cavity, and the water outlet is connected to the other cavity. The water outlet is connected to the inlet end of the delivery pump 4 through a pipeline, and the outlet end of the delivery pump 4 is connected to the water inlet of the cooling pipeline 32 through a pipeline. The water outlet of the cooling pipeline 32 is connected to the water inlet pipe 6 through a pipeline, and the water outlet of the water storage tank 2 is also directly connected to the water inlet pipe 6 through a pipeline. A liquid replenishment pipeline 7 is also connected to one side of the water storage tank 2.

[0033] Reference Figure 2 The water cooling tank 1 includes two connected tank bodies 11, the top of the tank body 11 is open and an end cover 12 is provided, the two tank bodies 11 are connected through a connecting pipe 15, an opening 13 is provided at one end of the two tank bodies 11 away from each other, three rollers 14 are evenly spaced inside the tank body 11, the drain pipe 5 and the water inlet pipe 6 are both provided below the tank body 11, the two ends of the bottom of the tank body 11 are connected to the drain pipe 5 through a hose 9, and the middle of the bottom of the tank body 11 is connected to the water inlet pipe 6 through a hose 9.

[0034] The implementation principle of a cooling device for fireproof cable production in this embodiment is as follows:

[0035] Water is injected into the water tank 2 through the replenishing pipe 7, and then an antioxidant is added into the water tank 2 through the opening above the water tank 2. The antioxidant and water are fully mixed in the water tank 2, and then the water is transported to the cooling pipeline 32 in the heat exchanger 3 through the delivery pump 4 at the water outlet of the water tank 2. The coolant pipeline 31 in the heat exchanger 3 is connected to the external water source 8. The water is cooled by heat exchange between the coolant and the water in the heat exchanger 3. The cooled water enters the water inlet pipe 6 through the water outlet of the cooling pipeline 32, and is evenly transported to the two tanks 11 through the water inlet pipe 6 and the hose 9. The water enters the tank 11 from the middle and then flows to both ends. The cable enters the tank 11 through the opening 13 at one end of the tank 11. The cable inside the tank 11 is fully in contact with the water inside the tank 11 for heat exchange. The water inside the tank 11 continues to flow from the middle to both ends and fully contacts the cable surface to improve the cooling effect. The water after heat exchange is transported to the drain pipe 5 through the hoses 9 at both ends of the tank 11, enters the water storage tank 2 through the drain pipe 5, and is mixed with the water in the water storage tank 2 for preliminary cooling in the water storage tank 2. Then, it is filtered through the filter screen 21 and enters another cavity, and is then transported to the heat exchanger 3 through the water outlet and the delivery pump 4 for cooling. After cooling, it is transported to the water cooling tank 1 to cool the cable to achieve recycling and cooling of the cable.

[0036] In summary, in this application, a water cooling tank, a water storage tank and a heat exchanger are provided. The water storage tank is used to mix water and antioxidants, and the heat exchanger is used to cool the water, which effectively realizes the cooling of the cable, realizes the repeated recycling of water, reduces the production cost, and the water containing antioxidants is only stored in the water cooling tank and the water storage tank, which is convenient for cleaning, and improves the efficiency and cooling effect of the cable cooling; in this application, the water cooling tank is connected to the water inlet pipe in the middle and the drainage pipes at both ends, and the water enters from the middle of the water cooling tank and then flows to both sides, so that the temperature distribution of the water inside the water cooling tank is uniform, and the water can fully contact with the cable for heat exchange, which improves the cooling effect of the cable. Therefore, this application effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0037] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present application shall still be included in the protection scope of the present application.

Claims

1. A cooling device for fireproof cable production, comprising a water cooling tank (1), with openings (13) for cables to pass through being formed at both ends of the water cooling tank (1), characterized in that: It also comprises a water storage tank (2) with an opening at the top, a delivery pump (4) and a heat exchanger (3); the water cooling tank (1) is connected to the water inlet of the water storage tank (2) via a pipeline; the water outlet of the water storage tank (2) is connected to the inlet end of the delivery pump (4) via a pipeline; a coolant pipeline (31) and a cooling pipeline (32) are arranged inside the heat exchanger (3); the outlet end of the delivery pump (4) is connected to the water inlet of the cooling pipeline (32) in the heat exchanger (3) via a pipeline; and the water outlet of the cooling pipeline (32) in the heat exchanger (3) is connected to the water cooling tank (1) via a pipeline.

2. A cooling device for fireproof cable production according to claim 1, characterized in that: The water cooling tank (1) comprises two tank bodies (11) arranged in parallel, the two tank bodies (11) being connected via a connecting pipe (15), and rollers (14) for supporting and transporting cables are arranged inside the tank bodies (11).

3. A cooling device for fireproof cable production according to claim 1, characterized in that: A drainage pipe (5) and a water inlet pipe (6) are provided on one side of the water cooling tank (1); one side of the drainage pipe (5) is connected to the bottom of the water cooling tank (1) through a hose, and one end of the drainage pipe (5) is connected to the water inlet of the water storage tank (2); one side of the water inlet pipe (6) is connected to the bottom of the water cooling tank (1) through a hose, and one end of the water inlet pipe (6) is connected to the water outlet of the cooling pipeline (32) in the heat exchanger (3).

4. A cooling device for fireproof cable production according to claim 1, characterized in that: An openable and closable end cover (12) is provided above the water cooling tank (1).

5. A cooling device for fireproof cable production according to claim 1, characterized in that: The bottoms of both ends of the water cooling tank (1) are connected to the water inlet of the water storage tank (2) through pipes, and the middle of the bottom of the water cooling tank (1) is connected to the water outlet of the cooling pipeline (32) in the heat exchanger (3) through a pipe.

6. A cooling device for fireproof cable production according to claim 1, characterized in that: The water storage tank (2) has an opening at the top, and an end cover is provided at the opening.

7. A cooling device for fireproof cable production according to claim 1, characterized in that: A filter screen (21) is arranged in the middle of the water storage tank (2), and the filter screen (21) is arranged between the water inlet and the water outlet of the water storage tank (2). One side of the water storage tank (2) is also connected to a liquid replenishment pipeline (7).

8. A cooling device for fireproof cable production according to claim 1, characterized in that: The water inlet and the water outlet of the coolant pipeline (31) in the heat exchanger (3) are connected to an external water source (8).

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