Energy-saving cooling water tank for cable extrusion molding process

Abstract

The utility model discloses an energy-saving warm water cooling water tank for a cable extrusion molding process. The energy-saving warm water cooling water tank comprises a rack, a cold water tank and a warm water tank, the warm water tank and the cold water tank are mounted on the rack from back to front along the advancing direction of the cable; perforated baffles are mounted on the front and rear side surfaces of the warm water tank and the cold water tank; holes in the perforated baffles are formed in a cable advancing path; an electric heating rod and a temperature sensor are mounted in the warm water tank; a warm water outlet is formed in the bottom surface of the warm water tank and is communicated with the water storage tank; the cold water tank is provided with a cold water inlet and is internally provided with a temperature sensor; the front side surface of the warm water tank and the rear side surface of the cold water tank share the same perforated baffle plate; the aperture of the hole in the perforated baffle is larger than the outer diameter of the cable. A hot water tank is further included; perforated baffles are mounted on the front and rear side surfaces of the hot water tank; the hot water tank is close to the rear of the warm water tank; an electric heating rod and a temperature sensor are mounted in the hot water tank; a water inlet of the hot water tank is connected to a water outlet of the water storage tank through a water pump.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing equipment, in particular to an energy-saving cooling water tank for cable extrusion process. Background Technique

[0002] When cables are subjected to extrusion processing (for example, sheathing the cable core, extruding the insulating layer of the wire core, etc.), the raw materials (such as sheathing materials, insulating materials, etc.) need to be heated, and then extruded and shaped. After shaping, they are cooled and shaped through a cooling water tank. Usually, the cooling is carried out manually by using cold water to cool the processed products. Taking the insulating layer as an example, when the insulating plastic is cooled, it is necessary to avoid rapid cooling caused by too low cooling water temperature. Because during the rapid cooling of the plastic, some insulating materials are cooled before they have time to crystallize, resulting in a low crystallinity of the insulating materials and the appearance of irregular crystals. If the slow cooling method is adopted, the crystallinity of the plastic is high, and large spherulites can be fully formed.

[0003] Common stepped segmented cooling water tanks for cables are generally divided into warm water tanks and cold water tanks, and there are also hot water tanks installed in front of the warm water tanks. The cold water tank is connected to the cold water source, the warm water tank is connected to the warm water source, and the hot water tank is connected to the hot water source. The extruded cables pass through the hot water tank, the warm water tank and the cold water tank in sequence. The commonly used warm water source and hot water source come from the warm water tank and the hot water tank respectively. The water tanks and the corresponding water tanks are connected by water pipes, and the water is pumped by a water pump.

[0004] Before starting the extrusion production line, a whole tank of water in the warm water tank and the hot water tank needs to be heated and then kept warm until the production line operates normally. Therefore, electric heating rods are installed in the warm water tank. The heating power is high and the energy consumption is large. Especially in winter, the heat loss in the warm water tank is large, and the heating and heat preservation processes cause serious energy waste. In order to avoid heat exchange with the outside air, the warm water tank also adopts a heat preservation structure. When the extrusion production line is operating, it is necessary to immediately detect the water temperature in the cooling water tank. If the water temperature is too high, cold water needs to be supplemented and hot water needs to be released. At this time, due to the heat preservation structure, the water temperature in the warm water tank is relatively high, and when it is supplemented into the water tank, the cooling is slow and the efficiency is not high. In addition, during the production process, the water that has undergone heat exchange in each cold water tank is directly discharged, increasing the pressure of waste heat treatment in the factory area. Summary of the Invention

[0005] In order to solve the problem of heat energy waste existing in the cooling process of the prior art, the utility model provides an energy-saving cooling water tank for cable extrusion process, which is specifically as follows.

[0006] An energy-saving warm water cooling water tank for cable extrusion process, comprising a frame, a cold water tank and a warm water tank; along the advancing direction of the cable, the warm water tank and the cold water tank are installed on the frame from back to front; perforated baffles are installed on the front and rear sides of the warm water tank and the cold water tank, and the holes on the perforated baffles are on the path of the advancing cable.

[0007] An electric heating rod and a temperature sensor are installed in the warm water tank; a warm water outlet is opened on the bottom surface of the warm water tank, and the warm water outlet is communicated with the water storage tank; a cold water inlet is installed in the cold water tank, and a temperature sensor is installed in the cold water tank; the warm water tank and the cold water tank are adjacent, and the front side surface of the warm water tank and the rear side surface of the cold water tank share the same perforated baffle; the aperture of the holes on the perforated baffle is larger than the outer diameter of the cable.

[0008] The energy-saving principle of this cooling water tank is that in the initial state, the water temperature of the warm water tank is maintained by the electric heating rod. After the production line runs, the cable exchanges heat with the warm water, which will increase the water temperature in the warm water tank. At this time, the electric heating rod can basically stop working.

[0009] The low water temperature in the cold water tank is ensured by the cold water at the cold water inlet. The aperture of the holes on the perforated baffle is larger than the outer diameter of the cable, so that the water in the cold water tank (after heat exchange, the water temperature is higher than the original water temperature at the cold water inlet) can flow into the warm water tank to help the warm water tank reduce the water temperature. At the same time, the warm water tank is provided with a warm water outlet, and the warm water is collected into the water storage tank. At this time, the flow direction of the cooling water is that the cold water at the cold water inlet in the cold water tank is heated up during the cable cooling process and cannot reach the low temperature required for cooling, then it flows into the warm water tank. The water temperature in the warm water tank decreases. If the warm water cannot reach the high temperature required for the warm water, the electric heating rod is used for heating. The heated water in the warm water tank flows out through the warm water outlet.

[0010] Furthermore, the warm water tank is connected with a cold water inlet. The setting of this cold water inlet enables the addition of cold water for cooling if the water temperature in the warm water tank is too high when the electric heating rod is not working.

[0011] Furthermore, it also includes a hot water tank; the hot water tank is behind the warm water tank; perforated baffles are installed on both the front and rear side surfaces of the hot water tank; the hot water tank is adjacent to the rear of the warm water tank, and the front side surface of the hot water tank and the rear side surface of the warm water tank share the same perforated baffle, and the aperture of the holes on the perforated baffle is larger than the outer diameter of the cable; an electric heating rod and a temperature sensor are installed in the hot water tank; the water inlet of the hot water tank is connected to the water outlet of the water storage tank through a water pump.

[0012] Its working principle is that for the cooling requirement of a more detailed cooling ladder of hot water -> warm water -> cold water, a hot water tank is added.

[0013] After the hot water in the hot water tank exchanges heat with the cable, it flows into the warm water tank and mixes with the cold water from the cold water tank. If the mixed water temperature cannot reach the high temperature required for warm water cooling, the electric heating rod is used for heating; if the water temperature is too high, cold water is added.

[0014] At the same time, the water temperature in the water storage tank is lower than the water temperature in the hot water tank but higher than the water temperature of the external cold water. Using the water in the water storage tank for the hot water tank can reduce the working duration of its electric heating rod.

[0015] Further, the hot water tank is connected with a cold water inlet. The setting of this cold water inlet is mainly for the situation where cold water needs to be supplemented for cooling. The usage opportunity of this cold water inlet is not much and it is mostly in standby in most cases.

[0016] Further, a stirring paddle is also installed in the warm water tank and is used for stirring water at different temperatures.

[0017] Further, a plurality of cable support guide wheels are also connected in the cold water tank, the warm water tank and the hot water tank; the plurality of cable support guide wheels are evenly distributed below the cable path. Since the cooling path of hot water -> warm water -> cold water is relatively long, for some cables with relatively large weight, support is needed to avoid sagging and even scratching the holes on the perforated baffle.

[0018] Further, the perforated baffle includes a fixed part and a detachable and replaceable part; the shape of the detachable and replaceable part is square; a square notch is opened in the middle of the fixed part, and the detachable and replaceable part is detachably connected in the square notch;

[0019] The holes of the perforated baffle are located on the detachable and replaceable part; there are a series of such perforated baffles, and the aperture diameters of the series of perforated baffles are different.

[0020] By replacing the detachable and replaceable part, the present cooling device is applicable to the production of cables with different cable diameters. Under this structure, it is not necessary to completely remove the baffle.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows: according to the cooling characteristics of different water temperatures, the water heated in the low-temperature cooling section is fully utilized, the heating energy in the high-temperature cooling section is saved, and energy can be saved. In the hot water and warm water cooling stages, only the water in the heating / insulating water tank is heated, and the existing hot water tank / warm water tank structure is not adopted, which greatly reduces the amount of water for heating / insulating and saves a large amount of energy.

[0022] The present utility model is particularly applicable to the multi-step segmented cooling of cables, improving product quality and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of this embodiment (three-stage cooling of hot water -> warm water -> cold water);

[0024] Figure 2 It is a top view schematic diagram of this embodiment;

[0025] Figure 3 It is a left view schematic diagram of the warm water tank part;

[0026] In the figure: frame 1, cold water tank 2, warm water tank 3, hot water tank 4, perforated baffle 5, electric heating rod 6, warm water outlet 7, water storage tank 8, cold water inlet 9, water inlet 10, water pump 11, drain outlet 12, stirring paddle 13, cable support guide wheel 14, fixed part 15, detachable and replaceable part 16, hole 17, rubber plate 18, water tank cover 19. Detailed implementation mode

[0027] The present utility model will be further described below in conjunction with the accompanying drawings and the detailed implementation mode.

[0028] Refer to Figure 1 and Figure 2 , an energy-saving warm water cooling water tank for cable extrusion process, comprising a frame 1, a cold water tank 2 and a warm water tank 3; along the advancing direction of the cable, the warm water tank and the cold water tank are installed on the frame from back to front; perforated baffles 5 are installed on the front and rear side surfaces of the warm water tank and the cold water tank, and the holes on the perforated baffles are on the path of the cable advancing. An electric heating rod 6 and a temperature sensor are installed in the warm water tank; a warm water outlet 7 is opened on the bottom surface of the warm water tank, and the warm water outlet 7 (which can be connected through a water valve) communicates with the water storage tank 8; a cold water inlet 9 is installed in the cold water tank, and a temperature sensor is installed in the cold water tank; the warm water tank and the cold water tank are adjacent, and the front side surface of the warm water tank and the rear side surface of the cold water tank share the same perforated baffle; the aperture of the hole 17 on the perforated baffle is larger than the outer diameter of the cable.

[0029] In this example, it further includes a hot water tank 4; the hot water tank is behind the warm water tank; perforated baffles 5 are installed on the front and rear side surfaces of the hot water tank; the hot water tank is adjacent to the rear of the warm water tank, and the front side surface of the hot water tank and the rear side surface of the warm water tank share the same perforated baffle 5, and the aperture of the hole on the perforated baffle is larger than the outer diameter of the cable; an electric heating rod and a temperature sensor are installed in the hot water tank; the water inlet 10 of the hot water tank is connected to the water outlet of the water storage tank 8 through a water pump 11.

[0030] Further refer to Figure 2 , the warm water tank 3 is connected with a cold water inlet 9. The hot water tank 4 is also connected with a cold water inlet 9. A stirring paddle 13 is also installed in the warm water tank.

[0031] Multiple cable support guide wheels 14 are also connected in the cold water tank, the warm water tank and the hot water tank; the multiple cable support guide wheels are evenly distributed below the cable path.

[0032] The water temperatures in the hot water tank, the warm water tank and the cold water tank are maintained within a certain temperature range according to the requirements of the cooling process. In most cases, the cooling water temperature in the cold water tank is normal temperature.

[0033] Further refer to Figure 3, the perforated baffle 5 includes a fixed part 15 and a detachable and replaceable part 16; the shape of the detachable and replaceable part is square; a square notch is formed in the middle of the fixed part, and the detachable and replaceable part is detachably connected in the square notch;

[0034] The holes 17 of the perforated baffle are located on the detachable and replaceable part; there are a series of such perforated baffles, and the apertures of the holes of the series of perforated baffles are different.

[0035] During engineering applications, there is a flip-up water tank cover 19 on the warm water tank and the hot water tank. When preheating the water tank during the production preparation stage, covering the water tank cover is beneficial for heat preservation. The holes 17 on the perforated baffle are notches on the plate. During the production process, a rubber plate 18 is plugged into the upper part of the notch to raise the water level in the water tank and facilitate the passage of cables. The water storage tank is also connected with a drain port 12. If the water temperature of the entire cooling device is relatively high and the amount of supplemented cold water is relatively high, after the water storage tank is full, it is necessary to drain the excess water.

Claims

1. An energy-saving warm water cooling water tank for cable extrusion process, comprising a frame, a cold water tank and a warm water tank; along the cable advancing direction, the warm water tank and the cold water tank are installed on the frame from back to front; perforated baffles are installed on the front and rear sides of the warm water tank and the cold water tank, and the holes in the perforated baffles are on the path of the cable advancing; it is characterized in that the warm An electric heating rod and a temperature sensor are installed in the water tank; a warm water outlet is opened on the bottom surface of the warm water tank, and the warm water outlet is communicated with the water storage tank; a cold water inlet is installed in the cold water tank, and a temperature sensor is installed in the cold water tank; the warm water tank and the cold water tank are adjacent, and the front side surface of the warm water tank and the rear side surface of the cold water tank share the same perforated baffle; the aperture of the holes on the perforated baffle is larger than the outer diameter of the cable.

2. The energy-saving warm water cooling water tank for cable extrusion process according to claim 1, wherein the temperature The water tank is connected with a cold water inlet.

3. The energy-saving warm water cooling water tank for cable extrusion process according to claim 1 or 2, characterized in that It further includes a hot water tank; perforated baffles are installed on both the front and rear side surfaces of the hot water tank; the hot water tank is adjacent to the rear of the warm water tank, and the front side surface of the hot water tank and the rear side surface of the warm water tank share the same perforated baffle, and the aperture of the holes on the perforated baffle is larger than the outer diameter of the cable; An electric heating rod and a temperature sensor are installed in the hot water tank; The water inlet of the hot water tank is connected to the water outlet of the water storage tank through a water pump.

4. The energy-saving warm water cooling water tank for cable extrusion process according to claim 3, characterized in that The hot water tank is connected with a cold water inlet.

5. The energy-saving warm water cooling water tank for cable extrusion process according to claim 3, characterized in that A stirring paddle is further installed in the warm water tank.

6. The energy-saving warm water cooling water tank for cable extrusion process according to claim 3, characterized in that A plurality of cable support guide wheels are also connected in the cold water tank, the warm water tank and the hot water tank; The plurality of cable support guide wheels are evenly distributed below the cable path.

7. The energy-saving warm water cooling water tank for cable extrusion process according to claim 3, characterized in that The perforated baffle includes a fixed part and a detachable and replaceable part; the shape of the detachable and replaceable part is square; a square notch is opened in the middle of the fixed part, and the detachable and replaceable part is detachably connected in the square notch; The holes of the perforated baffle are located on the detachable and replaceable part; there are a series of the perforated baffles, and the apertures of the series of perforated baffles are different.

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