Water leakage detection device for tuyere sleeve

Abstract

The utility model relates to the technical field of blast furnace ironmaking, in particular to a tuyere sleeve water leakage detection device. The device comprises a detection tank, a cavity is formed in the detection tank, a guide plate is arranged in the middle of the cavity and divides the cavity into a gas collection cavity and a liquid collection cavity, the gas collection cavity is located above the liquid collection cavity, and a water inlet is formed in the upper portion of the side wall of the gas collection cavity; one end, far away from the flow guide plate, of the gas guide pipe is positioned in the gas collection cavity and is higher than the water inlet; a water outlet is formed in the bottom of the liquid collecting cavity. The utility model provides a tuyere sleeve water leakage detection device, which can quickly and accurately judge the water leakage conditions of a middle sleeve and a small sleeve of a tuyere, and improves the detection accuracy and the working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace ironmaking, in particular to a tuyere sleeve water leakage detection device. Background Art

[0002] The tuyere of a blast furnace is an important process component for supplying air and injecting coal in an iron-making blast furnace. It is made up of three parts: a large sleeve, a middle sleeve and a small sleeve. The middle sleeve and the small sleeve are installed at the front end of the tuyere, and their area directly contacting the high temperature in the furnace is large. Therefore, the middle sleeve and the small sleeve of the tuyere are designed with cooling water chambers for water cooling. Due to the harsh use environment of the middle sleeve and the small sleeve of the tuyere, the middle sleeve and the small sleeve of the tuyere are very easy to be damaged. If the damaged tuyere sleeve is not replaced in time, the tuyere sleeve will leak water into the furnace, which not only increases the consumption of coke, but also is a hidden danger to production safety. Replacing the tuyere sleeve requires the blast furnace to stop production, which reduces the operation rate of the blast furnace and affects the production indicators of the blast furnace.

[0003] Therefore, it is very important to accurately judge the leakage of the air outlet sleeve. The existing equipment for leakage detection generally judges whether the middle and small sleeves of the air outlet are damaged or leaking based on the gas content in the cooling water used by the air outlet sleeve. There is still room for improvement in its detection accuracy. Utility Model Content

[0004] In view of the defects existing in the prior art, the utility model provides a device for detecting water leakage of an air vent sleeve, which can quickly and more accurately determine the water leakage of the middle sleeve and the small sleeve of the air vent, thereby improving the detection accuracy and work efficiency.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A device for detecting water leakage of an air inlet sleeve comprises a detection tank, a cavity is formed in the detection tank, a guide plate is provided in the middle of the cavity, the guide plate divides the cavity into an air collecting chamber and a liquid collecting chamber, the air collecting chamber is located above the liquid collecting chamber, and a water inlet is provided on the upper part of the side wall of the air collecting chamber; a guide hole and an air guide pipe are provided on the guide plate, and the end of the air guide pipe away from the guide plate is located in the air collecting chamber and higher than the water inlet; a water outlet is provided at the bottom of the liquid collecting chamber.

[0007] In the utility model, cooling water drawn out from the middle sleeve and the small sleeve of the tuyere enters the cavity of the detection tank through the water inlet, and flows into the liquid collecting cavity through the guide holes on the guide plate, and most of the gas mixed in the cooling water is separated and remains in the gas collecting cavity, and the gas mixed in the liquid collecting cavity enters the gas collecting cavity through the gas guide pipe.

[0008] Preferably, the guide plate is arranged obliquely in the cavity, the highest point of the guide plate edge is located below the water inlet, and a plurality of guide holes are evenly arranged on the guide plate, and the guide holes vertically connect the air collecting cavity and the liquid collecting cavity.

[0009] In the utility model, the guide plate slows down the speed of cooling water flowing into the liquid collecting cavity, which helps to fully separate the gas from the cooling water.

[0010] Preferably, a plurality of air guide tubes are evenly arranged on the guide plate, and an end of the air guide tube away from one end of the guide plate is located in the gas collecting cavity and higher than the water inlet, and the air guide tube is used to guide the gas in the liquid collecting cavity into the gas collecting cavity.

[0011] In the utility model, the air guide pipe is used to guide the mixed gas in the liquid collecting cavity into the air collecting cavity, and the end of the air guide pipe away from the guide plate is higher than the water inlet to prevent the gas flowing out of the air guide pipe from mixing into the cooling water again.

[0012] Preferably, a water baffle is provided on the water inlet side of the air collecting chamber, and the water baffle includes a first water baffle and a second water baffle; the left and right sides of one side of the first water baffle are respectively connected to the side wall of the air collecting chamber, and the upper side of the first water baffle is connected to the second water baffle; the edge of the second water baffle is respectively connected to the first water baffle and the side wall of the air collecting chamber; the water baffle is used to change the direction of the liquid flowing in at the water inlet to downward.

[0013] In the utility model, the cooling water flowing into the water inlet collides with the water baffle plate, which helps to separate the mixed gas in the cooling water; at the same time, the water baffle plate changes the flow direction of the cooling water, so that the cooling water flows to the liquid collecting chamber; and the water baffle plate plays a shielding role on the cooling water flow flowing into the water inlet in the gas collecting chamber, thereby reducing the probability of the gas in the gas collecting chamber mixing into the cooling water again.

[0014] Preferably, a water inlet pipe is provided at the top of the detection tank, a water inlet stop valve is provided on the water inlet pipe, and one end of the water inlet pipe is connected to the air collecting chamber; a water outlet pipe is provided at the bottom of the detection tank, a water outlet stop valve is provided on the water outlet pipe, and one end of the water outlet pipe is connected to the liquid collecting chamber.

[0015] In the utility model, the other end of the water inlet pipe is connected to the cooling water outlet pipe of the tuyere sleeve, and the cooling water enters the cavity through the water inlet pipe; the liquid in the liquid collecting cavity flows out from the outlet pipe at the bottom of the detection tank.

[0016] Preferably, a sampling tube is provided on the top of the detection tank, and the lower end of the sampling tube is connected to the gas collecting chamber.

[0017] In the utility model, the gas in the gas collecting cavity is collected through the sampling tube during detection.

[0018] Preferably, a pressure gauge is provided on the top of the detection tank, a detection tube is connected below the pressure gauge, and the lower end of the detection tube is connected to the gas collecting chamber.

[0019] In the utility model, during detection, the pressure in the cavity is observed in real time by a pressure gauge.

[0020] Preferably, a hanging ring is provided at the center of the top of the detection tank, and a handle is provided on the side of the detection tank.

[0021] In the utility model, the detection device is fixed or moved by the lifting ring and the handle.

[0022] Preferably, the bottom of the detection tank is fixedly connected to a support, and the lower end of the support is connected to a pulley.

[0023] In the utility model, the detection device is conveniently moved by means of a pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional diagram of the detection device in Example 1;

[0025] Figure 2 is a front cross-sectional view of the detection device in Example 1;

[0026] Figure 3 It is a left side cross-sectional view of the detection device in Example 1; DETAILED DESCRIPTION

[0027] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0028] Example 1

[0029] like Figure 1-3 As shown, the present embodiment provides a device for detecting water leakage of an air vent sleeve, which includes a detection tank 110, wherein a cavity 200 is formed in the detection tank 110, a guide plate 210 is provided in the middle of the cavity 200, the guide plate 210 divides the cavity 200 into an air collecting chamber 201 and a liquid collecting chamber 202, the air collecting chamber 201 is located above the liquid collecting chamber 202, and a water inlet 250 is provided on the upper part of the side wall of the air collecting chamber 201; a guide hole 220 and an air guide pipe 230 are provided on the guide plate 210, and the air guide pipe 230 is located in the air collecting chamber 201 at one end away from the guide plate 210 and is higher than the water inlet 250; a water outlet 260 is provided at the bottom of the liquid collecting chamber 202.

[0030] Through this embodiment, the cooling water drawn out from the middle sleeve and small sleeve of the air outlet enters the cavity of the detection tank 110 through the water inlet 250, and the cooling water flows into the liquid collecting chamber 202 through the guide hole 220 on the guide plate 210. Most of the gas mixed in the cooling water is separated and remains in the gas collecting chamber 201. The mixed gas in the liquid collecting chamber 202 enters the gas collecting chamber 201 through the gas guide pipe 230.

[0031] In this embodiment, the guide plate 210 is tilted in the cavity 200 , the highest point of the edge of the guide plate 210 is located below the water inlet, and a plurality of guide holes 220 are evenly distributed on the guide plate 210 , which vertically connect the air collecting chamber 201 and the liquid collecting chamber 202 .

[0032] Through this embodiment, the guide plate 210 slows down the speed at which the cooling water flows into the liquid collecting chamber 202, which helps to fully separate the gas from the cooling water.

[0033] In this embodiment, a plurality of air guide tubes 230 are evenly arranged on the guide plate 210 , and the air guide tubes 230 are used to guide the gas in the liquid collecting cavity 202 into the gas collecting cavity 201 .

[0034] Through this embodiment, the air guide pipe 230 is used to guide the mixed gas in the liquid collecting chamber 202 into the gas collecting chamber 201. The end of the air guide pipe 230 away from the guide plate 210 is higher than the water inlet 250 to prevent the overflow gas in the air guide pipe 230 from mixing into the cooling water again.

[0035] In this embodiment, a water baffle 240 is provided on the side of the water inlet 250 of the air collecting chamber 201, and the water baffle 240 includes a first water baffle 241 and a second water baffle 242; the left and right sides of one side of the first water baffle 241 are respectively connected to the side wall of the air collecting chamber 201, and the upper side of the first water baffle 241 is connected to the second water baffle 242; the edges of the second water baffle 242 are respectively connected to the first water baffle 241 and the side wall of the air collecting chamber 201; the water baffle 240 is used to change the direction of the liquid flowing into the water inlet 250 to downward.

[0036] In this embodiment, the cooling water flowing into the water inlet 250 collides with the water baffle 240, which helps to separate the mixed gas in the cooling water; at the same time, the water baffle 240 changes the flow direction of the cooling water, so that the cooling water flows to the liquid collecting chamber 202; and the water baffle 240 in the gas collecting chamber 201 has a shielding effect on the cooling water flow flowing into the water inlet 250, thereby reducing the probability of the gas in the gas collecting chamber 201 mixing into the cooling water again.

[0037] In this embodiment, a water inlet pipe 120 is provided at the top of the detection tank 110 , one end of which is connected to the gas collecting chamber 201 ; a water outlet pipe 170 is provided at the bottom of the detection tank 110 , one end of which is connected to the liquid collecting chamber 202 .

[0038] In this embodiment, the other end of the water inlet pipe 250 is connected to the cooling water outlet pipe of the tuyere sleeve, and the cooling water enters the cavity 200 through the water inlet pipe 120; the liquid in the liquid collecting cavity 202 flows out from the outlet pipe 180 at the bottom of the detection tank 110.

[0039] In this embodiment, a sampling tube 160 is provided on the top of the detection tank 110 , and the lower end of the sampling tube 160 is communicated with the gas collecting chamber 201 .

[0040] Through this embodiment, the staff collects the gas in the gas collecting chamber 201 through the sampling tube 160 during detection.

[0041] In this embodiment, a pressure gauge 140 is provided on the top of the detection tank 110 , a detection tube 130 is connected below the pressure gauge 140 , and a lower end of the detection tube 130 is communicated with the gas collecting chamber 201 .

[0042] Through this embodiment, the staff can observe the pressure in the cavity 200 in real time through the pressure gauge 130 during the inspection.

[0043] In this embodiment, a lifting ring 150 is provided at the center of the top of the detection tank 110 , and a handle 170 is provided on the side of the detection tank 110 ; the bottom of the detection tank 110 is fixedly connected to a support, and the lower end of the support is connected to a pulley 190 .

[0044] Through this embodiment, it is convenient for workers to move and fix the detection device when carrying out monitoring work.

[0045] When the air vent sleeve water leakage detection device of this embodiment is in use, the staff first observes the pressure in the cavity 200 of the detection tank 110 in real time through the pressure gauge 140. If the value of the pressure gauge 140 changes dramatically, it means that the air vent sleeve is obviously leaking. After the staff collects a certain amount of gas through the sampling tube 160, the collected gas is detected by a gas detector. If the value displayed by the gas detector reaches 100ppm or more, it means that the air vent sleeve is leaking.

[0046] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A device for detecting water leakage of an air inlet sleeve, characterized in that: The invention comprises a detection tank (110), wherein a cavity (200) is formed in the detection tank (110), a guide plate (210) is provided in the middle of the cavity (200), the guide plate (210) divides the cavity (200) into two parts, namely, a gas collecting cavity (201) and a liquid collecting cavity (202), the gas collecting cavity (201) is located above the liquid collecting cavity (202), and a water inlet (250) is provided at the upper part of the side wall of the gas collecting cavity (201); a guide hole (220) and an air guide pipe (230) are provided on the guide plate (210), and one end of the air guide pipe (230) away from the guide plate (210) is located in the gas collecting cavity (201) and is higher than the water inlet (250); and a water outlet (260) is provided at the bottom of the liquid collecting cavity (202).

2. The device for detecting water leakage of an air vent sleeve according to claim 1, characterized in that: The guide plate (210) is arranged obliquely in the cavity (200), the highest point of the edge of the guide plate (210) is located below the water inlet, and a plurality of guide holes (220) are evenly arranged on the guide plate (210), and the guide holes (220) vertically connect the air collecting cavity (201) and the liquid collecting cavity (202).

3. The device for detecting water leakage of an air inlet sleeve according to claim 1, characterized in that: A plurality of air guide tubes (230) are evenly arranged on the guide plate (210), and the air guide tubes (230) are used to guide the gas in the liquid collecting cavity (202) to enter the gas collecting cavity (201).

4. The device for detecting water leakage of an air inlet sleeve according to claim 1, characterized in that: A water baffle (240) is provided on the side of the water inlet (250) of the air collecting chamber (201), and the water baffle (240) comprises a first water baffle (241) and a second water baffle (242); the left and right sides of one side of the first water baffle (241) are respectively connected to the side wall of the air collecting chamber (201), and the upper side of the first water baffle (241) is connected to the second water baffle (242); the edges of the second water baffle (242) are respectively connected to the first water baffle (241) and the side wall of the air collecting chamber (201); the water baffle (240) is used to change the direction of the liquid flowing into the water inlet (250) to be downward.

5. The device for detecting water leakage of an air inlet sleeve according to claim 1, characterized in that: A water inlet pipe (120) is provided at the top of the detection tank (110), one end of which is in communication with the gas collecting chamber (201); a water outlet pipe (170) is provided at the bottom of the detection tank (110), one end of which is in communication with the liquid collecting chamber (202).

6. The device for detecting water leakage of an air inlet sleeve according to claim 1, characterized in that: A sampling tube (160) is provided on the top of the detection tank (110), and the lower end of the sampling tube (160) is communicated with the gas collecting chamber (201).

7. The device for detecting water leakage of an air inlet sleeve according to claim 1, characterized in that: A pressure gauge (140) is provided on the top of the detection tank (110), a detection tube (130) is connected below the pressure gauge (140), and a lower end of the detection tube (130) is communicated with the gas collecting chamber (201).

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