Closed-circuit water maintenance pressure relief device for continuous casting machine

Abstract

The utility model relates to the technical field of continuous casting machines, and discloses a continuous casting machine closed-circuit water maintenance pressure relief device which comprises a continuous casting machine body and a water storage tank, the continuous casting machine body is connected with a water inlet pipe, the water inlet pipe is communicated with the water storage tank, the continuous casting machine body is connected with a water return pipe, the water return pipe is communicated with the water storage tank, and the water storage tank is communicated with the continuous casting machine body. A water drain pipe is connected between the water inlet pipe and the water return pipe, and a water drain valve is arranged on the water drain pipe. When the continuous casting machine body is overhauled, the water drainage valve is opened, cooling water enters the water return pipe through the water drainage pipe and then enters the water storage tank, a closed loop is formed, the continuous casting machine body can be maintained on the premise that a water pump is not closed, high-pressure water is guided into the water return pipe through the pressure relief device, and the continuous casting machine body is maintained while the closed loop is stroke. And cooling water of the continuous casting machine body is cut off, the maintenance cost is reduced, the overhaul efficiency is improved, and the continuous casting machine is suitable for being widely used and popularized in modern continuous casting machine equipment.

Description

Technical Field

[0001] This utility model belongs to the field of continuous casting machine technology, specifically, it relates to a closed-loop water maintenance and pressure relief device for continuous casting machines. Background Technology

[0002] Continuous casting involves pouring molten steel at high temperatures into one or more water-cooled copper crystallizers. The steel gradually solidifies into a billet shell along the perimeter of the crystallizer. Once the molten steel level reaches a certain height and the billet shell has solidified to a certain thickness, a straightening machine pulls the billet out. The billet then passes through a secondary cooling zone where it is sprayed with water to completely solidify. Finally, a cutting device cuts it to the required length according to rolling specifications. This process of directly pouring molten steel into billets is called continuous casting, and the equipment required to complete this process is called a complete set of continuous casting equipment, commonly referred to as a continuous casting machine. The closed-loop water system of the continuous casting machine is an indispensable part of the continuous casting production line. Its function is to deliver water to each piece of equipment requiring cooling during the continuous casting process, thereby reducing the temperature of the equipment, improving its structural strength, and extending its service life.

[0003] In the past, when overhauling a continuous casting machine, the water pumps had to be shut off first. With the development of continuous casting technology, to expedite maintenance, the water pumps are no longer shut off; maintenance is performed directly on the machine. This requires the continuous casting machine's closed-loop water system to have a pressure relief function. Without this function, the cooling water supply to the machine cannot be cut off, resulting in slower maintenance, more time spent, and lower efficiency.

[0004] In view of this, this utility model proposes a closed-loop water maintenance and pressure relief device for continuous casting machines to solve the above problems. Utility Model Content

[0005] To address the problem that a closed-loop water system in a continuous casting machine without a pressure relief function cannot shut off the cooling water supply, resulting in slow maintenance, excessive time consumption, and low maintenance efficiency, the basic concept of this utility model is as follows:

[0006] A closed-loop water maintenance and pressure relief device for a continuous casting machine includes a continuous casting machine body and a water storage tank. The continuous casting machine body is connected to an inlet pipe, which is connected to the water storage tank. The continuous casting machine body is also connected to a return pipe, which is connected to the water storage tank. A drain pipe is connected between the inlet pipe and the return pipe, and a drain valve is installed on the drain pipe.

[0007] In a preferred embodiment of this utility model, the water inlet pipe is provided with a water inlet valve, and the water outlet pipe is located between the water storage tank and the water inlet valve.

[0008] In a preferred embodiment of this utility model, a return water valve is provided on the return water pipe, and the drain pipe is located between the water storage tank and the return water valve.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] This invention allows for maintenance of the continuous casting machine by opening the drain valve during overhaul, enabling cooling water to flow from the drain pipe into the return pipe and then into the storage tank, forming a closed loop. This allows for maintenance of the continuous casting machine without shutting down the water pump. The pressure relief device guides high-pressure water into the return pipe, completing the closed loop while simultaneously cutting off the cooling water supply to the continuous casting machine. This reduces maintenance costs and improves maintenance efficiency, making it suitable for widespread use and promotion in modern continuous casting equipment.

[0011] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the water inlet pipe, the water return pipe, and the water storage tank of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure of the inlet pipe, return pipe and drain pipe of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the drain pipe, the inlet pipe, and the return pipe of this utility model.

[0017] In the diagram: 1. Continuous casting machine body; 2. Water storage tank; 3. Inlet pipe; 4. Return pipe; 5. Drain pipe; 6. Inlet valve; 7. Return valve; 8. Drain valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0019] like Figures 1 to 4 As shown

[0020] A closed-loop water pressure relief device for continuous casting machine maintenance includes a continuous casting machine body 1 and a water storage tank 2. An inlet pipe 3 is connected to the continuous casting machine body 1 and communicates with the water storage tank 2. A return pipe 4 is also connected to the continuous casting machine body 1 and communicates with the water storage tank 2. A drain pipe 5 is connected between the inlet pipe 3 and the return pipe 4, and a drain valve 8 is installed on the drain pipe 5. An inlet valve 6 is installed on the inlet pipe 3. The drain pipe 5 is positioned between the water storage tank 2 and the inlet valve 6. A return valve 7 is installed on the return pipe 4. The drain pipe 5 is positioned between the water storage tank 2 and the return valve 7. Under normal operating conditions, the device... Open the inlet valve 6 to allow cooling water to enter the continuous casting machine body 1 through the inlet pipe 3, cooling the continuous casting machine body 1. Then, open the return pipe 4 of the return valve 7 to allow the cooling water to return to the storage tank 2. When the continuous casting machine body 1 needs to be repaired, close the inlet valve 6 and the return valve 7, and open the drain valve 8, allowing the cooling water to enter the storage tank 2 through the drain pipe 5 and the return pipe 4, forming a closed loop. In this way, the cooling water of the continuous casting machine body 1 can be cut off without shutting down the water pump, shortening the repair time of the continuous casting machine body 1 and significantly improving the repair efficiency.

[0021] The implementation principle of the closed-loop water maintenance and pressure relief device for a continuous casting machine in this embodiment is as follows:

[0022] Under normal operating conditions, the inlet valve 6 is opened, allowing cooling water to enter the continuous casting machine body 1 through the inlet pipe 3 to cool the machine body 1. Then, the cooling water is returned to the storage tank 2 by opening the return pipe 4 through the return valve 7. When the continuous casting machine body 1 needs maintenance, the inlet valve 6 and the return valve 7 are closed, and the drain valve 8 is opened, allowing the cooling water to enter the storage tank 2 through the drain pipe 5 and the return pipe 4, forming a closed loop. This allows the cooling water supply to the continuous casting machine body 1 to be cut off without shutting down the water pump, shortening the maintenance time of the continuous casting machine body 1 and saving costs.

Claims

1. A closed-loop water maintenance and pressure relief device for a continuous casting machine, comprising a continuous casting machine body (1) and a water storage tank (2), characterized in that, The continuous casting machine body (1) is connected to a water inlet pipe (3), which is connected to a water storage tank (2). The continuous casting machine body (1) is connected to a return water pipe (4), which is connected to a water storage tank (2). A drain pipe (5) is connected between the water inlet pipe (3) and the return water pipe (4), and a drain valve (8) is installed on the drain pipe (5).

2. The closed-loop water maintenance and pressure relief device for a continuous casting machine according to claim 1, characterized in that, The inlet pipe (3) is equipped with an inlet valve (6), and the drain pipe (5) is located between the water storage tank (2) and the inlet valve (6).

3. The closed-loop water maintenance and pressure relief device for a continuous casting machine according to claim 1, characterized in that, The return water pipe (4) is equipped with a return water valve (7), and the drain pipe (5) is located between the water storage tank (2) and the return water valve (7).

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