Leakage detection device for tuyere small sleeve of blast furnace
By designing a blast furnace air outlet of the glass tube and laser, the small leakage device is used to observe the optical leakage of the Tyedal principle, which solves the problem of accurately judging the water leakage of the air outlet in the existing technology, and realizes the fast and accurate water leakage test. , Ensure the stable production of blast furnaces.
Patent Information
- Application Number
- CN202421244879.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-03
AI Technical Summary
It is difficult to accurately determine whether the small sleeve of the blast furnace air outlet is leaking, especially when the water leakage is too small, the direct observation method, the water temperature difference method and the water flow difference method have problems such as misjudgment and inaccurate judgment.
Design a kind of blast furnace air outlet small set to check the leakage device, including the small set of the air outlet, the small set of the water pipe, the small set of water pipe, the glass round pipe, the front end cover, the back end cover, the laser In the laser, according to the principle of Ding Dar, observe whether the light cylinder is generated in the glass round tube to determine whether the air outlet is leaking.
Through this device, you can quickly and accurately distinguish whether the air outlet is leaked, avoid misjudgment, improve the reliability of leakage detection, and ensure the stable production of blast furnaces.
Smart Images
Figure CN222411653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of leakage detection of a small sleeve of a blast furnace tuyere, in particular to a leakage detection device of a small sleeve of a blast furnace tuyere. Background Art
[0002] At present, there are three main methods for leak detection of tuyere sets:
[0003] 1. Direct observation method: When water marks appear at the tuyere, the blast furnace water inspector needs to conduct on-site inspections of each tuyere one by one, and then the water inlet valve of the tuyere small sleeve needs to be closed. After the tuyere small sleeve is damaged, the high-pressure gas in the furnace enters the return pipe to produce a large number of bubbles. Observe whether there are bubbles in the water column from the tuyere small sleeve to the return tank. This can be used to determine whether the tuyere small sleeve is leaking. The above direct observation method has the following defects and shortcomings. When the leakage is too small, the direct observation method requires the blast furnace water inspector to have very rich work experience. Otherwise, it is not easy to observe the bubble phenomenon from the water column of the small sleeve, which is prone to misjudgment.
[0004] 2. Water temperature difference method: measure the difference between the inlet and outlet temperatures of the tuyere sleeve. Generally, the water temperature difference of an intact tuyere sleeve is less than 10°C. If the tuyere sleeve is damaged and leaks into the furnace, the water output will decrease and the outlet water temperature will increase, resulting in an increase in the inlet and outlet water temperature difference of the tuyere sleeve. Therefore, it can be used to determine whether the tuyere sleeve is leaking.
[0005] 3. Water flow difference method: measure the difference between the inlet and outlet flow of the tuyere sleeve. Generally, the water flow difference of an intact tuyere sleeve is less than 0.5m3 / h. If it is damaged and leaks into the furnace, the water output will decrease, resulting in an increase in the difference between the inlet and outlet flow rates. Therefore, it can be used to determine whether the tuyere sleeve is leaking.
[0006] The above-mentioned water temperature difference method and water flow difference method also have the following shortcomings. When the leakage is too small, the water temperature difference and water flow difference of the small sleeve inlet and outlet will not change significantly. The leakage phenomenon is not obvious and cannot be accurately judged. Therefore, it is difficult to formulate treatment and solutions, which has a great impact on the stable production of the blast furnace. Utility Model Content
[0007] In order to solve the problems mentioned in the background technology, the utility model aims to provide a blast furnace tuyere small sleeve leakage detection device.
[0008] In order to achieve the above objectives, the technical solution of the utility model is:
[0009] A blast furnace tuyere small sleeve leak detection device comprises a tuyere small sleeve body, a small sleeve water inlet pipe, a small sleeve water outlet pipe, a glass round tube, a front end cover, a rear end cover, a front pair of threads, a rear pair of threads and a laser. The front end cover and the rear end cover are respectively in contact with the two ends of the axial direction of the glass round tube, the front end cover and the rear end cover are locked by multiple groups of tie rod bolts, and the front end cover and the rear end cover are respectively formed with a front joint and a rear joint on the opposite sides thereof. The front joint is connected to the small sleeve water outlet pipe in the incoming water direction by the front pair of threads, and the rear joint is connected to the small sleeve water outlet pipe in the outgoing water direction by the rear pair of threads. The laser is used to inject laser into the glass round tube along the radial direction of the glass round tube.
[0010] Furthermore, the front and rear cover are respectively formed with front and rear embedding grooves on opposite sides, and the two axial ends of the glass tube are respectively embedded in the front and rear embedding grooves, and leak-proof rubber rings are arranged between the two axial ends of the glass tube and the front and rear embedding grooves.
[0011] The beneficial effects of the utility model are as follows: if the tuyere sleeve body leaks, there will be bubbles in the water coming from the water outlet pipe of the sleeve, and by using a laser to shoot laser into the glass round tube, according to the Tyndall principle, it is possible to visually observe that a light column is generated in the glass round tube, and if the tuyere sleeve body does not leak, there will be no bubbles in the water coming from the water outlet pipe of the sleeve, and no light column will be generated in the glass round tube, so it is possible to quickly distinguish whether the tuyere sleeve body is leaking. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0013] Figure 2 It is a cross-sectional view of the glass round tube, the front end cover, the rear end cover and the leak-proof rubber ring in the embodiment of the utility model.
[0014] Explanation of the accompanying figures: 1. air vent small sleeve body, 11. small sleeve water inlet pipe, 12. small sleeve water outlet pipe, 2. glass round tube, 3. front end cover, 31. front embedding groove, 32. front joint, 4. rear end cover, 41. rear embedding groove, 42. rear joint, 5. front pair of threads, 6. rear pair of threads, 7. laser, 8. leak-proof rubber ring. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the utility model.
[0016] like Figure 1-Figure 2As shown, a blast furnace tuyere small sleeve leak detection device comprises a tuyere small sleeve body 1, a small sleeve water inlet pipe 11, a small sleeve water outlet pipe 12, a glass round tube 2, a front end cover 3, a rear end cover 4, a front pair of threads 5, a rear pair of threads 6 and a laser 7. The small sleeve water inlet pipe 11 is connected to the water inlet end of the tuyere small sleeve body 1, and the small sleeve water outlet pipe 12 is connected to the water outlet end of the tuyere small sleeve body 1. The front end cover 3 and the rear end cover 4 are respectively in contact with the two ends of the axial direction of the glass round tube 2. The front end cover 3 and the rear end cover 4 are locked by three sets of tie rod bolts. Preferably, the opposite sides of the front end cover 3 and the rear end cover 4 are respectively formed with A front embedding groove 31 and a rear embedding groove 41, the two axial ends of the glass tube 2 are respectively embedded in the front embedding groove 31 and the rear embedding groove 41, and leak-proof rubber rings 8 are arranged between the two axial ends of the glass tube 2 and the front embedding groove 31 and the rear embedding groove 41. The front end cover 3 and the rear end cover 4 are respectively formed with a front joint 32 and a rear joint 42 on the opposite sides thereof. The front joint 32 is connected to the small sleeve water outlet pipe 12 in the incoming water direction through the front pair of threads 5, and the rear joint 42 is connected to the small sleeve water outlet pipe 12 in the outgoing water direction through the rear pair of threads 6. The laser 7 is used to inject laser into the glass tube 2 along the radial direction of the glass tube 2.
[0017] If the tuyere sleeve body 1 leaks, there will be bubbles in the water coming from the sleeve outlet pipe 12. By using the laser 7 to shoot laser into the glass tube 2, according to the Tyndall principle, it can be intuitively observed that a light column is generated in the glass tube 2. If the tuyere sleeve body 1 does not leak, there will be no bubbles in the water coming from the sleeve outlet pipe 12, and no light column will be generated in the glass tube 2. It can be quickly determined whether the tuyere sleeve body 1 is leaking.
[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A blast furnace tuyere small sleeve leak detection device, comprising a tuyere small sleeve body (1), a small sleeve water inlet pipe (11) and a small sleeve water outlet pipe (12), characterized in that: The invention also comprises a glass round tube (2), a front end cover (3), a rear end cover (4), a front pair of threads (5), a rear pair of threads (6) and a laser (7). The front end cover (3) and the rear end cover (4) are respectively in contact with the two axial ends of the glass round tube (2). The front end cover (3) and the rear end cover (4) are locked by a plurality of groups of tie rod bolts. The front end cover (3) and the rear end cover (4) are respectively formed with a front joint (32) and a rear joint (42) on opposite sides thereof. The front joint (32) is connected to a small water outlet pipe (12) in the incoming water direction by the front pair of threads (5). The rear joint (42) is connected to a small water outlet pipe (12) in the outgoing water direction by the rear pair of threads (6). The laser (7) is used for injecting laser light into the glass round tube (2) along the radial direction of the glass round tube (2).
2. A blast furnace tuyere small sleeve leak detection device according to claim 1, characterized in that: A front embedding groove (31) and a rear embedding groove (41) are respectively formed on opposite sides of the front cover (3) and the rear cover (4); the two axial ends of the glass tube (2) are respectively embedded in the front embedding groove (31) and the rear embedding groove (41); and leak-proof rubber rings (8) are disposed between the two axial ends of the glass tube (2) and the front embedding groove (31) and the rear embedding groove (41).