CN215975886U - Quick leak detection device - Google Patents
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- CN215975886U CN215975886U CN202121863652.XU CN202121863652U CN215975886U CN 215975886 U CN215975886 U CN 215975886U CN 202121863652 U CN202121863652 U CN 202121863652U CN 215975886 U CN215975886 U CN 215975886U
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- gas
- degassing tank
- tuyere
- small sleeve
- leak detection
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Abstract
The utility model discloses a quick leak detection device which comprises a degassing tank and a gas detection pipeline connected with an exhaust port of the degassing tank, wherein an inlet of the degassing tank is communicated with a small tuyere sleeve, and the gas detection pipeline is connected with a gas detector. After cooling the blast furnace, cooling water flows through the tuyere small sleeve and then flows into a degassing tank, the degassing tank degasses the cooling water, then a gas detection pipeline conveys gas in the degassing tank to a gas detector, the gas detector detects gas in the gas conveyed by the degassing tank 1, if the gas component is detected in the gas, the tuyere small sleeve is indicated to be leaked, and if the gas component is not detected, the tuyere small sleeve is indicated to be not leaked; the damage condition of the tuyere is detected by a method for detecting the gas content of cooling return water, and the problem that the existing blast furnace tuyere small sleeve is not timely in leak detection is solved.
Description
Technical Field
The utility model relates to the technical field of blast furnace metallurgical equipment, in particular to a quick leak detection device.
Background
The blast furnace tuyere small sleeve is one of blast furnace air inlet systems, is generally made of pure copper, has water cooling in an inner cavity, and has the function of being embedded in the front end of a tuyere and extending into a furnace to feed hot air into the blast furnace, so that the direct scouring of hot air and coal powder on a furnace wall is avoided.
The tuyere small sleeve is directly contacted with high-temperature slag iron, hot air and pulverized coal for combustion, and the use temperature is up to 2000 ℃ in a high-temperature environment, so that although the tuyere small sleeve is cooled by running water, burning loss inevitably occurs, cooling water flows back to the inside of the blast furnace, and the abnormal furnace condition and even safety production accidents are caused.
Therefore, the requirements for the leakage detection of the tuyere small sleeve are that the tuyere small sleeve can be detected firstly and can be detected timely secondly. The current major leak detection methods mainly include: water temperature difference method, direct observation method. A water temperature difference method: the difference between the water temperature and the water inlet temperature is measured, the water temperature difference of the common watertight tuyere small sleeve is less than 10 ℃, if water leakage occurs, the water outlet quantity is reduced, the water outlet temperature is increased, and the water temperature difference is increased, so that whether the tuyere small sleeve leaks water or not can be judged. Direct observation method: when seen from the blowpipe peephole (small cover glass), slag is hung on the tuyere, gas is emitted, flame becomes yellow or dark, and water is mixed between the tuyere small sleeve and the middle sleeve, so that whether the tuyere small sleeve leaks water or not can be judged. However, the two methods have the defects that the detection can be carried out only when the water leakage is more, namely the damage is severe. The typical failure process for small sleeves ranges from cracks, to voids, to eventual fusion losses, and if the test lags, already causes large losses.
Therefore, how to solve the problem that the existing blast furnace tuyere small sleeve is not timely in leak detection is a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quick leak detection device, which is characterized in that a return water pipeline is optimized, a coal gas detection device is arranged on the return water pipeline, and the damage condition of a tuyere is detected by a method for detecting the content of cooling return water coal gas, so that the problem that the existing blast furnace tuyere small sleeve cannot leak in time is solved.
In order to solve the technical problem, the utility model provides a quick leak detection device which comprises a degassing tank and a gas detection pipeline connected with an exhaust port of the degassing tank, wherein an inlet of the degassing tank is communicated with a small tuyere sleeve, and the gas detection pipeline is connected with a gas detector.
Preferably, the outlet of the degassing tank is provided with a drain pipe.
Preferably, the water recycling device further comprises a water recycling tank connected with the water discharging pipe.
Preferably, a water inlet pipe is arranged on the upper side of the tuyere small sleeve.
Preferably, a return pipe is arranged on the lower side of the tuyere small sleeve, and the other end of the return pipe is connected with an air inlet of the degassing tank.
Preferably, a valve is arranged on the gas detection pipeline.
The quick leak detection device provided by the utility model comprises a degassing tank and a gas detection pipeline connected with an exhaust port of the degassing tank, wherein an inlet of the degassing tank is communicated with a small tuyere sleeve, and the gas detection pipeline is connected with a gas detector. After cooling the blast furnace, the cooling water flows through the tuyere small sleeve and then flows into a degassing tank, the degassing tank degasses the cooling water, then the gas detection pipeline conveys gas in the degassing tank to a gas detector, the gas detector detects gas in the gas conveyed by the degassing tank 1, if the gas component is detected in the gas, the tuyere small sleeve is indicated to be leaked, and if the gas component is not detected, the tuyere small sleeve is indicated to be not leaked.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Wherein, in fig. 1:
the system comprises a degassing tank-1, a gas detection pipeline-2, a tuyere small sleeve-3, a drain pipe-4, a water return tank-5, a water inlet pipe-6, a return pipe-7 and a valve-8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
In a specific embodiment provided by the utility model, the device mainly comprises a degassing tank 1 and a gas detection pipeline 2 connected with an exhaust port of the degassing tank 1, wherein an inlet of the degassing tank 1 is used for being communicated with a tuyere small sleeve 3, and the gas detection pipeline 2 is used for being connected with a gas detector.
The degassing tank 1 is used for degassing cooling water flowing through the tuyere small sleeve 3, the gas detection pipeline 2 is used for conveying gas in the degassing tank 1 to a gas detector, and the gas detector is used for performing gas detection on the gas in the degassing tank 1.
Specifically, in the practical application process, after cooling the blast furnace, the cooling water flows through the tuyere small sleeve 3 and then flows into the degassing tank 1, the degassing tank 1 degasses the cooling water, then the gas detection pipeline 2 conveys the gas in the degassing tank 1 to the gas detector, the gas detector detects the gas conveyed by the degassing tank 1, if the gas component is detected in the gas, the tuyere small sleeve 3 is indicated to be leaked, and if the gas component is not detected, the tuyere small sleeve 3 is indicated to be not leaked.
On the basis of the above embodiment, it is preferable that the outlet of the degassing tank 1 is provided with a drain pipe 4; the quick leak detection device further comprises a water return tank 5 connected with the water discharge pipe 4. The degassing tank 1 degasses the cooling water flowing through the tuyere small sleeve 3, and then delivers the cooling water to the water returning tank 5 through the water discharging pipe 4 for circulation of the cooling water.
On the basis of the above-mentioned embodiment, the upper side of the tuyere small sleeve 3 is preferably provided with a water inlet pipe 6. The water inlet pipe 6 is used for cooling water to enter the blast furnace to cool the equipment.
In addition to the above-mentioned embodiments, it is preferable that a return pipe 7 is provided under the tuyere small sleeve 3, and the other end of the return pipe 7 is connected with the air inlet of the degassing tank 1. The return pipe 7 is used to feed the cooling water cooled by the blast furnace to the degassing tank 1.
On the basis of the above-mentioned embodiment, it is preferable that the gas detection pipe 2 is provided with a valve 8. The valve 8 can control the opening and closing of the gas detection pipeline 2 and control the gas flow in the gas detection pipeline 2, and under the appropriate condition, the gas flow can be increased or decreased to adapt to the detection of different gas concentrations.
In conclusion, the quick leak detection device that this embodiment provided mainly includes the degasification jar and with the coal gas detection pipe way that the degasification jar gas vent is connected, the import of degasification jar is used for communicating with the tuyere cover, and gas detection pipe way is used for being connected with the coal gas detector. After cooling the blast furnace, the cooling water flows through the tuyere small sleeve and then flows into a degassing tank, the degassing tank degasses the cooling water, then the gas detection pipeline conveys gas in the degassing tank to a gas detector, the gas detector detects gas in the gas conveyed by the degassing tank 1, if the gas component is detected in the gas, the tuyere small sleeve is indicated to be leaked, and if the gas component is not detected, the tuyere small sleeve is indicated to be not leaked.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The quick leak detection device is characterized by comprising a degassing tank (1) and a gas detection pipeline (2) connected with an exhaust port of the degassing tank (1), wherein an inlet of the degassing tank (1) is communicated with a small tuyere sleeve (3), and the gas detection pipeline (2) is connected with a gas detector.
2. Quick leak detection apparatus according to claim 1, characterised in that the outlet of the degassing tank (1) is provided with a drain (4).
3. Quick leak detection apparatus according to claim 2, further comprising a return tank (5) connected to the drain pipe (4).
4. Quick leak detection device according to claim 3, characterized in that the tuyere small sleeve (3) is provided with a water inlet pipe (6) at the upper side.
5. Quick leak detection device according to claim 4, characterised in that the tuyere small sleeve (3) is provided with a return pipe (7) on its underside, the other end of the return pipe (7) being connected to the air inlet of the degassing tank (1).
6. Quick leak detection device according to one of claims 1 to 5, characterized in that a valve (8) is provided on the gas detection line (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863652.XU CN215975886U (en) | 2021-08-10 | 2021-08-10 | Quick leak detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863652.XU CN215975886U (en) | 2021-08-10 | 2021-08-10 | Quick leak detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215975886U true CN215975886U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121863652.XU Active CN215975886U (en) | 2021-08-10 | 2021-08-10 | Quick leak detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215975886U (en) |
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2021
- 2021-08-10 CN CN202121863652.XU patent/CN215975886U/en active Active
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