Drawing liquid cooling device

Abstract

The utility model belongs to the field of wire drawing liquid cooling, particularly relates to a wire drawing liquid cooling device, and aims to solve the problems that in order to guarantee the cooling effect of annealing liquid (or wire drawing liquid) in the using process, the heat exchange area of a plate heat exchanger is increased, the temperature of cooling water is reduced to the maximum extent, and the cooling effect is poor. In order to solve the problems that the size of the plate heat exchanger is increased and the economical efficiency is poor due to the fact that the heat exchange area of the plate heat exchanger is increased without limitation, the following scheme is provided: the plate heat exchanger comprises a cooling-water machine, a first plate heat exchanger and a second plate heat exchanger, by arranging the cooling-water machine, the heat exchange area of the plate heat exchanger does not need to be increased, and the temperature of cooling water (serving as cold fluid) is effectively reduced, so that the cooling effect on annealing liquid is improved, the cooling effect of the annealing liquid (or wire drawing liquid) on copper wires is enhanced, the drawing speed is increased, and the copper wires cannot be oxidized; and economic investment caused by increasing the heat exchange area of the plate heat exchanger is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wire drawing liquid cooling, in particular to a wire drawing liquid cooling device. Background Art

[0002] In the wire drawing production process, the metal wire is pulled by the wire drawing equipment to pass through the die hole to obtain a product with the same size and shape as the die hole. It is a continuous stretching plastic processing method. One of the important characteristics of metal plastic deformation is work hardening. As the degree of deformation increases, all indicators in the deformation zone, such as yield limit, strength limit and hardness, increase, while plastic indicators such as elongation and cross-sectional reduction rate decrease. At the same time, the resistance increases and the thermal conductivity decreases. In the production process, the copper wire also needs to be annealed through a large current to eliminate the effects of work hardening. During the drawing and annealing process, the copper wire will generate a lot of heat and is very easy to oxidize. In addition, high-speed wire drawing is currently widely used. Its speed has increased and the relative heat dissipation time has been reduced, which has brought a certain amount of space and time to oxidation. One of the main reasons for oxidation is The temperature of the cooling water in the sealed chamber is too high, exceeding 40°C. This means that the sealed chamber cannot achieve the required cooling effect on the monofilament, causing the temperature of the monofilament to remain high after annealing. At high temperatures, it encounters oxygen in the air and oxidizes. Therefore, it is necessary to cool the drawing and annealing liquids used during the drawing and annealing process to reduce the surface temperature of the copper wire and prevent oxidation of the copper wire. The drawing and annealing liquids are recycled and are cooled by a plate heat exchanger. The plate heat exchanger is a new type of high-efficiency heat exchanger composed of a series of stacked metal sheets with a certain corrugated shape. Thin rectangular channels are formed between the various plates. The working fluid (annealing liquid or drawing liquid, cooling water) flows through the narrow and tortuous channels formed between the two plates. The hot and cold fluids flow through the channels in turn, exchanging heat through the plates for cooling.

[0003] Existing plate heat exchangers have the following problems during use: in order to ensure the cooling effect of the annealing liquid (or drawing liquid) during use, one is to increase the heat exchange area of the plate heat exchanger, and the other is to minimize the temperature of the cooling water itself. Unlimited increase in the heat exchange area of the plate heat exchanger will cause the volume of the plate heat exchanger itself to increase, resulting in poor economic efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that in order to ensure the cooling effect of annealing liquid (or drawing liquid) during use, the heat exchange area of the plate heat exchanger is increased, and the temperature of the cooling water itself is reduced to the maximum extent. By unlimitedly increasing the heat exchange area of the plate heat exchanger, the volume of the plate heat exchanger itself will increase, resulting in poor economic efficiency. A wire drawing liquid cooling device is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A drawing liquid cooling device includes a chiller, a first plate heat exchanger and a second plate heat exchanger, the first plate heat exchanger consists of a pressing plate, a bracket, a movable plate, a first guide rod, a second guide rod and a plurality of plates, one end of the first guide rod and one end of the second guide rod are fixedly connected to one side of the pressing plate, the top and bottom of the movable plate are both provided with notches, the movable plate is located between the first guide rod and the second guide rod, a plurality of plates are arranged between the pressing plate and the movable plate, the pressing plate and the movable plate are fixed by long bolts and nuts, one side of the bracket is fixedly connected to one end of the first guide rod and one end of the second guide rod, and one side of the pressing plate is fixedly provided with a heat medium inlet pipe, a heat medium outlet pipe, a cooling medium inlet pipe and a cooling medium outlet pipe.

[0007] In a possible design, a third pipe is fixedly provided on the heat medium outlet pipe of the first plate heat exchanger, and one end of the third pipe is fixedly connected to the heat medium inlet pipe of the second plate heat exchanger.

[0008] In a possible design, a first pipe is fixedly provided on the cooling medium outlet pipe of the first plate heat exchanger, and one end of the first pipe is fixedly connected to the cold water outlet of the chiller.

[0009] In a possible design, a second pipe is fixedly provided on the cooling medium outlet pipe of the first plate heat exchanger, and one end of the second pipe is fixedly connected to the cooling medium inlet pipe of the second plate heat exchanger.

[0010] In a possible design, a fourth pipe is fixedly provided on the cooling medium outlet pipe of the second plate heat exchanger, and one end of the fourth pipe is fixedly connected to the cold water inlet of the chiller.

[0011] In a possible design, the second plate heat exchanger has the same structure as the first plate heat exchanger, and the first pipe, the second pipe, the third pipe and the fourth pipe are all made of stainless steel.

[0012] In the present application, when in use, the outlet of the heat medium (annealing liquid or drawing liquid) on the equipment is connected to the heat medium inlet pipe of the first plate heat exchanger through a pipe, and the inlet of the equipment is connected to the heat medium outlet pipe of the second plate heat exchanger through a pipe. The cold water inside the chiller is cooled by a chiller, and then the cold water is transported to the first pipe through the chiller. The cold water is transported to the first plate heat exchanger through the first pipe, and flows through the narrow and tortuous channels formed by multiple plates in the first plate heat exchanger. The hot and cold fluids flow through the channels in turn, exchange heat through the plates, and perform initial cooling of the annealing liquid (or drawing liquid). The cooled annealing liquid is transported to the second plate heat exchanger through the heat medium outlet pipe and the third pipe. In the plate heat exchanger, at the same time, the cold water in the first plate heat exchanger will be transported to the second plate heat exchanger through the second pipe, and the annealing liquid (or drawing liquid) will be cooled for a second time through the second plate heat exchanger. Finally, it will be discharged through the heat medium outlet pipe of the second plate heat exchanger. The cooling water enters the chiller through the fourth pipe for circulation cooling. The setting of the chiller does not require increasing the heat exchange area of the plate heat exchanger. By effectively reducing the temperature of the cooling water (as a cold fluid), the cooling effect on the annealing liquid is improved, and the cooling effect of the annealing liquid (or drawing liquid) on the copper wire is enhanced. The drawing speed is increased, the copper wire will not be oxidized, and the economic investment caused by increasing the heat exchange area of the plate heat exchanger is avoided.

[0013] The beneficial effects of the present invention are:

[0014] In the utility model, the wire drawing liquid cooling device does not need to increase the heat exchange area of the plate heat exchanger by setting a chiller. By effectively reducing the temperature of the cooling water (as a cold fluid), the cooling effect of the annealing liquid is improved, and the cooling effect of the annealing liquid (or wire drawing liquid) on the copper wire is enhanced. The drawing speed is increased, the copper wire will not be oxidized, and the economic investment caused by increasing the heat exchange area of the plate heat exchanger is avoided.

[0015] In the utility model, the provision of a chiller eliminates the need to increase the heat exchange area of the plate heat exchanger. By effectively lowering the temperature of the cooling water (as a cold fluid), the cooling effect on the annealing liquid is improved, and the cooling effect of the annealing liquid (or drawing liquid) on the copper wire is enhanced. The drawing speed is increased, the copper wire will not oxidize, and the economic investment caused by increasing the heat exchange area of the plate heat exchanger is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a wire drawing liquid cooling device proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of a first plate heat exchanger and a second plate heat exchanger of a wire drawing liquid cooling device proposed by the present invention;

[0018] Figure 3 This is a side structural schematic diagram of a first plate heat exchanger and a second plate heat exchanger of a wire drawing liquid cooling device proposed by the present invention;

[0019] Figure 4 This is a structural schematic diagram of a first plate heat exchanger of a wire drawing liquid cooling device proposed in the present utility model.

[0020] In the figure: 1. Chiller; 2. First plate heat exchanger; 3. Heat medium inlet pipe; 4. Cooling medium inlet pipe; 5. Cooling medium outlet pipe; 6. Heat medium outlet pipe; 7. Compression plate; 8. Movable plate; 9. Bracket; 10. First guide rod; 11. Second guide rod; 12. Second plate heat exchanger; 13. First pipeline; 14. Second pipeline; 15. Third pipeline; 16. Fourth pipeline. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example 1

[0023] Reference Figure 1-4 A cooling device includes: a compression plate 7, a bracket 9, a movable plate 8, a first guide rod 10, a second guide rod 11, and a plurality of plates. One end of the first guide rod 10 and one end of the second guide rod 11 are fixedly connected to one side of the compression plate 7 to form a stable frame. The top and bottom of the movable plate 8 are provided with notches, which are located between the first guide rod 10 and the second guide rod 11 and can slide and adjust along the guide rods. A plurality of plates are evenly arranged between the compression plate 7 and the movable plate 8, and a channel for cooling medium is formed between these plates for heat exchange.

[0024] The compression plate 7 and the movable plate 8 are fixed with long bolts and nuts to ensure the stability and sealing of the entire plate heat exchanger. One side of the bracket 9 is fixedly connected to one end of the first guide rod 10 and one end of the second guide rod 11, providing additional support for the plate heat exchanger. On one side of the compression plate 7, the heat medium inlet pipe 3, the heat medium outlet pipe 6, the cooling medium inlet pipe 4 and the cooling medium outlet pipe 5 are also fixedly installed. These pipes are used to introduce and discharge heat medium and cooling medium respectively.

[0025] This application is used in the field of wire drawing liquid cooling, and can also be used in other fields applicable to this application.

[0026] Example 2

[0027] refer to Figure 1-4 , based on the improvement of embodiment 1: a drawing liquid cooling device, which is used in the field of drawing liquid cooling,

[0028] A third pipe 15 is fixedly provided on the heat medium outlet pipe 6 of the first plate heat exchanger 2, and one end of the third pipe 15 is fixedly connected to the heat medium inlet pipe 3 of the second plate heat exchanger 12. In this way, the heat medium can circulate between the two plate heat exchangers to achieve heat transfer and exchange.

[0029] At the same time, the cooling medium outlet pipe 5 of the first plate heat exchanger 2 is fixedly provided with a first pipe 13 and a second pipe 14. One end of the first pipe 13 is fixedly connected to the cold water outlet of the chiller 1, and is used to introduce the cooled cold water into the first plate heat exchanger 2 for heat exchange. One end of the second pipe 14 is fixedly connected to the cooling medium inlet pipe 4 of the second plate heat exchanger 12, and is used to introduce the cooling medium after heat exchange in the first plate heat exchanger 2 into the second plate heat exchanger 12 for further cooling.

[0030] In addition, the cooling medium outlet pipe 5 of the second plate heat exchanger 12 is fixedly provided with a fourth pipe 16, one end of which is fixedly connected to the cold water inlet of the chiller 1. In this way, the cooling medium after heat exchange through the two plate heat exchangers can eventually flow back to the chiller 1 for re-cooling and recycling.

[0031] The second plate heat exchanger 12 shares the same structure as the first plate heat exchanger 2, including components such as a compression plate 7, a bracket 9, a movable plate 8, guide rods, and multiple plates. This identical design allows the two plate heat exchangers to be used interchangeably, improving the flexibility and reliability of the entire cooling system. Furthermore, the first, second, third, and fourth pipes 13, 14, 15, and 16 are all made of stainless steel, making them more durable.

[0032] The model of the chiller 1 is an industrial chiller ICA-50. The chiller 1 is a prior art and its working principle will not be described in detail here.

[0033] However, as is well known to those skilled in the art, the working principle and wiring method of the chiller 1 are commonplace, and are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wire drawing liquid cooling device, characterized in that: The invention comprises a chiller (1), a first plate heat exchanger (2) and a second plate heat exchanger (12), wherein the first plate heat exchanger (2) is composed of a pressing plate (7), a bracket (9), a movable plate (8), a first guide rod (10), a second guide rod (11) and a plurality of plates, one end of the first guide rod (10) and one end of the second guide rod (11) are fixedly connected to one side of the pressing plate (7), the top and bottom of the movable plate (8) are both provided with notches, and the movable plate (8) is located on the first guide rod. (10) and the second guide rod (11), a plurality of plates are arranged between the pressing plate (7) and the movable plate (8), the pressing plate (7) and the movable plate (8) are fixed by long bolts and nuts, one side of the bracket (9) is fixedly connected to one end of the first guide rod (10) and one end of the second guide rod (11), and one side of the pressing plate (7) is fixedly provided with a heat medium inlet pipe (3), a heat medium outlet pipe (6), a cooling medium inlet pipe (4) and a cooling medium outlet pipe (5).

2. A wire drawing liquid cooling device according to claim 1, characterized in that: The heat medium outlet pipe (6) of the first plate heat exchanger (2) is fixedly provided with a third pipe (15), and one end of the third pipe (15) is fixedly connected to the heat medium inlet pipe (3) of the second plate heat exchanger (12).

3. The drawing liquid cooling device according to claim 1, characterized in that: The cooling medium outlet pipe (5) of the first plate heat exchanger (2) is fixedly provided with a first pipe (13), and one end of the first pipe (13) is fixedly connected to the cold water outlet of the chiller (1).

4. The drawing liquid cooling device according to claim 1, characterized in that: The cooling medium outlet pipe (5) of the first plate heat exchanger (2) is fixedly provided with a second pipe (14), and one end of the second pipe (14) is fixedly connected to the cooling medium inlet pipe (4) of the second plate heat exchanger (12).

5. The drawing liquid cooling device according to claim 1, characterized in that: The cooling medium outlet pipe (5) of the second plate heat exchanger (12) is fixedly provided with a fourth pipe (16), and one end of the fourth pipe (16) is fixedly connected to the cold water inlet of the chiller (1).

6. The drawing liquid cooling device according to claim 3, characterized in that: The second plate heat exchanger (12) has the same structure as the first plate heat exchanger (2), and the first pipe (13), the second pipe (14), the third pipe (15) and the fourth pipe (16) are all made of stainless steel.

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