Blast furnace cooling equipment damage leak detection on-line pressing device

Abstract

The utility model discloses a blast furnace cooling equipment damage leak detection on-line pressing device, which belongs to the technical field of production and maintenance in the metallurgical industry and comprises a pressure gauge, a pressure buffer tube, a first ball valve, a first variable-diameter tube, a second variable-diameter tube and a metal hose which are sequentially connected. The side wall of the first variable-diameter pipe is connected with a second short section, and the second short section is provided with a second ball valve. Through the combined connection of the variable-diameter pipe and the buffer pipe and the pressure relief design of the second short section, the precise detection of the tiny damage of the blast furnace cooling equipment is realized. The device is simple in structure, low in cost and convenient to operate, the problem that whether equipment is damaged or not cannot be accurately judged through a traditional method is solved, and the stability of blast furnace production is improved.

Description

An online pressure testing device for leak detection in blast furnace cooling equipment Technical Field

[0001] This utility model belongs to the field of production and maintenance technology in the metallurgical industry, and specifically relates to an online pressure testing device for damage and leakage detection of blast furnace cooling equipment. Background Technology

[0002] During the blast furnace production process in metallurgical enterprises, the cooling equipment of the blast furnace may experience minor damage to the cooling water pipes and tuyeres due to changes in the quality of raw materials and fluctuations in furnace conditions over a long period of time. This makes accurate troubleshooting and maintenance difficult. However, traditional detection methods, such as visual inspection or automatic inspection, are difficult to accurately determine the degree of leakage, resulting in the equipment operating with defects and affecting the stable production of the blast furnace. Summary of the Invention

[0003] The purpose of this invention is to provide an online pressure testing device for leak detection in blast furnace cooling equipment, which aims to solve the problem of inaccurate leak detection in blast furnace cooling equipment in the aforementioned background technology.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] An online pressure testing device for leak detection in blast furnace cooling equipment is characterized by comprising a pressure gauge, a pressure buffer pipe, a first ball valve, a first variable diameter pipe, a second variable diameter pipe, and a metal hose connected in sequence. The two ends of the pressure buffer pipe are respectively connected to the pressure gauge and the first ball valve through a first short section. The side wall of the first variable diameter pipe is connected to a second short section, and the second short section is equipped with a second ball valve. The metal hose is connected to the outlet of the blast furnace cooling equipment.

[0006] Furthermore, the first variable diameter pipe is a DN32mm to DN15mm pipe, and the second variable diameter pipe is a DN50mm to DN32mm pipe.

[0007] The beneficial effects of this utility model are: based on the monitoring of the pressure gauge, this utility model can accurately detect leaks in the blast furnace cooling equipment. The device also supports detection during the online operation of the blast furnace to meet the requirements of maintaining normal production. Attached Figure Description

[0008] Figure 1 is a structural schematic diagram of this utility model.

[0009] In the diagram, 1 is a pressure gauge; 2 is a pressure buffer tube; 3 is the first ball valve; 4 is a short section; 5 is the first variable diameter pipe; 6 is the second variable diameter pipe; 7 is a metal hose; 8 is the second ball valve; and 9 is the second short section. Detailed Implementation Methods

[0010] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0011] As shown in Figure 1, an online pressure testing device for leak detection in blast furnace cooling equipment includes a pressure gauge 1, a pressure buffer pipe 2, a first ball valve 3, a first variable diameter pipe 5, a second variable diameter pipe 6, and a metal hose 7 connected in sequence. The two ends of the pressure buffer pipe 2 are connected to the pressure gauge 1 and the first ball valve 3 respectively through a first short section 4. The side wall of the first variable diameter pipe 5 is connected to a second short section 9, and the second short section 9 is equipped with a second ball valve 8. The metal hose 7 is connected to the outlet of the blast furnace cooling equipment.

[0012] Furthermore, the first variable diameter pipe 5 is a DN32mm to DN15mm pipe, and the second variable diameter pipe 6 is a DN50mm to DN32mm pipe.

[0013] When leak detection is required on-site, connect the connector of a 50mm diameter, 1.2m long metal hose 7 to the outlet of the cooling water pipe or air vent. Weld a second variable diameter pipe 6 with a 30mm external thread to the other end. Weld a first variable diameter pipe 5 with a 30mm external thread to one end of the second variable diameter pipe 6. Weld a second short section 9 with a 110mm long, DN15mm external thread to the side wall of the first variable diameter pipe 5. Ensure the weld is airtight during this process. During testing, close the second ball valve 8 and open the first ball valve 3, injecting pressurized water through the cooling water pipe. Observe the pressure gauge 1. If the pressure remains stable, the cooling equipment is undamaged; if the pressure continues to drop, a leak is detected, and the equipment needs repair. After the test is completed, close the first ball valve 3, slowly open the second ball valve 8, release the pressure inside the device through the second short section 9, and then disconnect the metal hose 7 from the cooling equipment to complete the online test.

[0014] Specifically, the variable diameter structure design allows for adaptation to different interfaces of the blast furnace cooling equipment according to actual conditions, while also improving the accuracy and sensitivity of detection. The second short section 9 ensures a smooth depressurization process, preventing sudden pressure drops from damaging the device. The first ball valve 3 and the second ball valve 8 work together to ensure detection safety. This device can perform leak detection during production, and its simplicity reduces costs. It can accurately determine whether there are minor leaks in the equipment, meeting the requirements for maintaining normal production order.

Claims

1. An online pressure testing device for leak detection in blast furnace cooling equipment, characterized in that, The system includes a pressure gauge (1), a pressure buffer pipe (2), a first ball valve (3), a first variable diameter pipe (5), a second variable diameter pipe (6), and a metal hose (7) connected in sequence. The two ends of the pressure buffer pipe (2) are connected to the pressure gauge (1) and the first ball valve (3) respectively through a first short section (4). The side wall of the first variable diameter pipe (5) is connected to a second short section (9), and the second short section (9) is equipped with a second ball valve (8). The metal hose (7) is connected to the outlet of the blast furnace cooling equipment.

2. The online pressure testing device for damage and leakage detection of blast furnace cooling equipment according to claim 1, characterized in that, The first variable diameter pipe (5) is a DN32mm to DN15mm pipe, and the second variable diameter pipe (6) is a DN50mm to DN32mm pipe.

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