Water leakage monitoring device for blast furnace cooling wall

Abstract

The utility model discloses a water leakage monitoring device for a cooling wall of a blast furnace, and aims to solve the problems of low accuracy, poor timeliness and the like of a traditional monitoring method. A water inlet pipe and a water outlet pipe which are communicated are arranged on a water pipe connecting adjacent cooling walls, the water inlet pipe is communicated with a guide groove with a device body, a water blocking mechanism is arranged in the device body, a boss and a baffle of the water blocking mechanism are matched with a plugging block, normal circulation of cooling water is ensured by plugging a through hole in normal, and gas is discharged through the through hole and a one-way valve mechanism due to displacement of the plugging block in water leakage; meanwhile, the water temperature probe in the boss is cooperated with the gas probe between the baffle and the valve body, a monitoring signal is transmitted to a computer end through a moving ring controller, the water leakage condition of the cooling wall is accurately monitored in real time, and stable and safe operation of the blast furnace is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of blast furnace ironmaking monitoring technology, especially to a water leakage monitoring device of blast furnace cooling wall. BACKGROUND

[0002] In the production process of blast furnace ironmaking, the cooling wall plays a crucial role. It takes away heat through circulating cooling water, maintains the thermal balance inside the blast furnace, and ensures the stable operation of the blast furnace. However, the cooling wall is easily damaged under long-term high temperature, high pressure, and complex chemical corrosion environment, and the water leakage problem is particularly prominent. Once the cooling wall leaks, not only will it greatly reduce the cooling effect and affect the normal production efficiency of the blast furnace, but it may also cause a series of safety hazards, such as damage to the furnace lining due to sudden local temperature changes, and even coal gas leakage, endangering the lives of on-site workers.

[0003] The current common monitoring methods include direct observation method, i.e., regular inspection by workers to see if there is water seepage on the surface of the cooling wall; temperature monitoring method, i.e., arranging temperature sensors at key positions of the cooling wall to indirectly determine whether there is water leakage according to the temperature change trend; and flow monitoring method, i.e., comparing the flow difference between the inlet and outlet water, and prompting if the difference exceeds the normal range, which may indicate a water leakage situation.

[0004] The traditional direct observation method has obvious limitations. It highly depends on manual inspection, which not only consumes a lot of manpower and resources, but also cannot timely detect water leakage hazards during the inspection interval, making it difficult to respond to sudden water leakage conditions. The temperature monitoring method uses water temperature probes to monitor the water temperature difference. When the cooling wall is in a normal state, the water temperature probes obtain real-time cooling water temperature data and transmit the signals to the dynamic ring controller. By continuously monitoring and comparing the water temperature at different times or different positions, the water temperature difference is calculated to determine whether the cooling wall heat exchange efficiency is stable. If the water temperature difference exceeds the normal fluctuation range, it can be detected that the cooling system may have a slight abnormality, providing a basis for early maintenance and ensuring the stable operation of the blast furnace cooling wall. Although the temperature monitoring method can provide some reference information, it is prone to misjudgment when determining water leakage based on temperature changes due to the complexity of the internal temperature field of the blast furnace and the interference of multiple factors. The accuracy is not good. The flow monitoring method has low sensitivity to small water leakage. It can only be detected when the water leakage reaches a certain level and the flow difference is large enough, which delays the detection of early water leakage signs and delays the repair opportunity. INVENTION CONTENTS

[0005] The utility model aims at providing a water leakage monitoring device for blast furnace cooling wall to solve the problems of poor accuracy, insufficient timeliness, and high labor cost of traditional blast furnace cooling wall water leakage monitoring methods. Through innovative device design, efficient and accurate monitoring of cooling wall water leakage is achieved.

[0006] The utility model discloses a technical scheme as follows realizes:

[0007] A water leakage monitoring device of blast furnace cooling wall, including the cooling wall of being located between the furnace lining and the furnace shell, the water pipe connection between adjacent cooling wall, every water pipe all has one water inlet pipe and one water outlet pipe, every water inlet pipe on water pipe with water outlet pipe intercommunication, water inlet pipe still has the guide groove intercommunication on, be equipped with the device body on the guide groove, the one-way valve mechanism of releasing the single-way valve mechanism of furnace gas is equipped with at the end of device body far from water inlet pipe, the inside of device body is equipped with chamber, be equipped with the water blocking mechanism of preventing cooling water flow to one-way valve mechanism in chamber.

[0008] Preferably, the water blocking mechanism includes a boss arranged on the inner wall of the chamber, and an opening is arranged on the boss and communicates the chamber and the guide groove; a baffle is arranged above the boss in a direction from the boss to the one-way valve mechanism, the baffle is arranged on the inner wall of the chamber, and a through hole is arranged on the baffle; a blocking block capable of blocking the through hole is further arranged between the baffle and the boss, the density of the blocking block is α, and α < 1.2 kg / m 3 .

[0009] Preferably, an opening is arranged on the device body, the one-way valve mechanism includes a valve body arranged in the opening, a valve core capable of closing the opening is arranged in the valve body, a spring connecting the valve core and the inner wall of the valve body is arranged between the valve core and the inner wall of the valve body, and the valve core can close the opening when the spring is in an initial state.

[0010] Preferably, a water temperature probe is arranged in the boss, and a gas probe is arranged on the cavity wall between the baffle and the valve body.

[0011] Preferably, the thickness of the guide groove gradually shrinks in a direction from the guide groove to the one-way valve mechanism.

[0012] Preferably, the included angle between the side walls of the guide groove ranges from 40° to 45°.

[0013] Preferably, the thickness of the baffle gradually shrinks in a direction from the baffle to the valve body.

[0014] Preferably, the blocking block is spherical.

[0015] Preferably, the axes of the opening, the through hole and the opening coincide.

[0016] Preferably, the installation positions of the water temperature probe and the gas probe are located on the same straight line in a direction from the boss to the valve body.

[0017] Compared with the prior art, the utility model has the advantages and beneficial effects as follows: the utility model discloses a device body with the water inlet pipe, the water outlet pipe and the water blocking mechanism and the one-way valve mechanism, realizing automatic monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the embodiments of the utility model, constitute a part of this application, and do not constitute the limitation to the embodiments of the utility model.

[0019] Figure 1 It is the installation position schematic view of the water leakage monitoring device of the utility model on the blast furnace;

[0020] Figure 2 It is the schematic view of the water leakage monitoring device of the utility model under normal working condition;

[0021] Figure 3 It is the schematic view of the water leakage monitoring device of the utility model under the water leakage condition;

[0022] Figure 4 It is the schematic view of the monitoring system of the water leakage monitoring device based on the utility model.

[0023] The represented by the reference signs is:

[0024] 10, furnace shell, 11, furnace lining, 12, water inlet main pipe,

[0025] 20, cooling wall, 21, water pipe,

[0026] 30, device body, 31, boss, 32, opening, 33, guide slot, 34, water inlet pipe, 35, water outlet pipe, 36, baffle, 361, through hole, 37, plugging block, 38, opening,

[0027] 40, one-way valve mechanism, 41, valve body, 42, valve core, 43, spring,

[0028] 50, gas probe, 51, water temperature probe,

[0029] 60, cooling water. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of the present application. The illustrative embodiments and the description thereof are only used to explain the present application, and do not limit the present application. It should be noted that the present application has been in the actual research and development stage.

[0031] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the usual meaning understood by a person with ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and do not exclude other elements or objects.

[0032] The traditional cooling wall water leakage monitoring method has obvious disadvantages. The direct observation method relies on manual inspection, which consumes a lot of manpower and material resources, and it is difficult to detect water leakage hidden dangers in the gap between inspections in time. The temperature monitoring method is disturbed by the complex temperature field of the blast furnace, and it is easy to misjudge only by temperature change. The flow monitoring method has low sensitivity to small water leakage and is difficult to capture early signs, often delaying maintenance.

[0033] Embodiment 1

[0034] As Figures 1 to 3 A water leakage monitoring device for a blast furnace cooling wall 20, comprising a cooling wall 20 arranged between a furnace lining 11 and a furnace shell 10, and water pipes 21 connected between adjacent cooling walls 20. Each water pipe 21 is connected with an inlet pipe 34 and an outlet pipe 35. The inlet pipe 34 of each water pipe 21 is connected with the outlet pipe 35. The inlet pipe 34 is further connected with a guide groove 33. The guide groove 33 is provided with a device body 30. The end of the device body 30 away from the inlet pipe 34 is provided with a one-way valve mechanism 40 for releasing the coal gas in the furnace. The inside of the device body 30 is provided with a chamber. The chamber is provided with a water blocking mechanism for preventing the cooling water 60 from flowing to the one-way valve mechanism 40.

[0035] The scheme aims to solve the problem that the traditional blast furnace cooling wall 20 water leakage monitoring method is difficult to find water leakage problem in time and accurately. The water pipe 21 between the cooling wall 20 is connected to the water inlet pipe 34 and the water outlet pipe 35, the water inlet pipe 34 is connected to the guide groove 33, and the device body 30 on the guide groove 33 is provided with a one-way valve mechanism 40 and a water blocking mechanism in the chamber. In practical application, the cooling water 60 flows into the device body 30 through the water inlet pipe 34 and the guide groove 33 in normal time, the blocking block 37 floats up to block the through hole 361 of the baffle 36, and the cooling water 60 circulates normally; once the cooling wall 20 leaks, the gas enters, the blocking block 37 falls, the gas is discharged through the through hole 361 and the one-way valve mechanism 40, and at the same time, the water temperature and gas probe 50 detects abnormity, which timely and accurately prompts water leakage, avoids the disadvantages of the traditional method, and guarantees stable operation of the blast furnace.

[0036] In the embodiment, the water blocking mechanism includes a boss 31 arranged around the inner wall of the chamber, and the boss 31 is provided with an opening 32 communicating the chamber and the guide groove 33; in the direction from the boss 31 to the one-way valve mechanism 40, the upper part of the boss 31 is provided with a baffle 36, the baffle 36 is arranged around the inner wall of the chamber, and the baffle 36 is provided with a through hole 361; the baffle 36 and the boss 31 are further provided with a blocking block 37 capable of blocking the through hole 361, the density of the blocking block 37 is α, and α satisfies α < 1.2 kg / m 3 .

[0037] The water blocking mechanism is a key part, the boss 31 thereof is arranged around the inner wall of the chamber of the device body 30, is provided with the opening 32 communicating the chamber and the guide groove 33, and is used for guiding water flow direction. The baffle 36 is located above the boss 31 and is also arranged around the inner wall, and the through hole 361 thereof can move the blocking block 37 under a specific state. The density of the blocking block 37 is less than 1.2 kg / m 3 (the average density of gas), under normal circumstances, the cooling water 60 flows in, the blocking block 37 floats on the water due to the smaller density than water, blocks the through hole 361 of the baffle 36, ensures the cooling water 60 to flow along the predetermined path, effectively prevents the cooling water 60 from flowing into the direction of the one-way valve mechanism 40, and greatly improves the stability of the device operation.

[0038] The density of the blocking block 37 is designed to be less than 1.2 kg / m 3 , which is based on the density characteristics of the cooling water 60 and the gas. Under normal operation, the cooling water 60 fills the water inlet pipe 34 and the chamber of the device body 30, and the density is about 1 kg / m 3 . The blocking block 37 can float on the water due to the smaller density than water, accurately blocks the through hole 361 of the baffle 36, ensures the cooling water 60 to circulate normally, prevents it from flowing to the one-way valve mechanism 40, and guarantees stable operation of the device.

[0039] In the embodiment, the device body 30 is provided with an opening 38, and the one-way valve mechanism 40 includes a valve body 41 arranged in the opening 38. The valve body 41 is provided with a valve core 42 capable of closing the opening 38. The valve core 42 and the inner wall of the valve body 41 are provided with a spring 43 connecting the valve core 42 and the inner wall of the valve body 41. When the spring 43 is in an initial state, the valve core 42 can close the opening 38.

[0040] In the initial state, the spring 43 can make the valve core 42 close the opening 38, effectively preventing external impurities from entering the device. When the cooling wall 20 leaks water and the gas enters the device and accumulates a certain pressure, the gas can overcome the elastic force of the spring 43, push open the valve core 42, and smoothly discharge through the opening 38.

[0041] The one-way valve is mainly arranged to deal with the gas leakage caused by the leakage of the cooling wall 20. When the cooling wall 20 is damaged and leaks water, the gas enters the device, and the one-way valve is in an initial state of closing, which can prevent external impurities from entering and interfering with monitoring. As the accumulated pressure of the gas increases, the valve core 42 can be pushed open to discharge, which can timely discharge the gas to avoid high pressure in the device, and the one-way conduction characteristic can ensure that the gas flows along the predetermined path, which is beneficial to accurate monitoring and ensures the safety of the blast furnace.

[0042] In the embodiment, the inner part of the boss 31 is provided with a water temperature probe 51, and the inner wall of the cavity between the baffle 36 and the valve body 41 is provided with a gas probe 50.

[0043] The water temperature probe 51 arranged in the inner part of the boss 31 directly contacts the cooling water 60, accurately senses the change of the water temperature, and reflects the heat exchange state of the cooling wall 20 in real time. The gas probe 50 on the inner wall of the cavity between the baffle 36 and the valve body 41 is located in the path of the gas flow. Once the cooling wall 20 leaks water and the gas enters the device, the gas probe 50 can quickly capture the gas signal. The two work together to synchronously feed back the temperature and gas information, avoid the limitation of a single monitoring method, provide the running state information of the cooling wall 20 in all directions, and greatly improve the accuracy of the water leakage judgment, thereby ensuring the normal operation of the blast furnace.

[0044] The gas probe 50 and the water temperature probe 51 cannot contact the cooling water 60. If the water temperature probe 51 contacts the cooling water 60, it is easy to be affected by water flow impact, corrosion and the like, resulting in inaccurate temperature measurement and failure to truly reflect the heat exchange state of the cooling water 60. If the gas probe 50 contacts water, the sensitivity of the gas probe 50 to the gas will be affected, and the gas leakage condition will be misjudged. Keeping the probes from contacting water can ensure that the monitoring data is stably and accurately obtained.

[0045] In this embodiment, the thickness of the guide groove 33 gradually shrinks in the direction from the guide groove 33 to the one-way valve mechanism 40. The gradual shrinkage of the thickness of the guide groove 33 enables the cooling water 60 to flow more smoothly and efficiently to the inside of the device body 30 after flowing from the water inlet pipe 34 into the guide groove 33 according to the tapered shape of the guide groove 33, avoiding turbulence or stagnation of the water flow. At the same time, when the cooling wall 20 leaks and gas enters, the gas can also quickly enter the device along the optimized shape of the guide groove 33, ensuring the timeliness of the response of the monitoring device to the leakage situation and improving the overall monitoring efficiency.

[0046] In this embodiment, the included angle between the side walls of the guide groove 33 ranges from 40° to 45°. This included angle design allows the cooling water 60 to be reasonably constrained and guided when flowing into the guide groove 33, with more uniform water flow power distribution, enabling the water to advance to the device body 30 at a stable flow rate, reducing component wear caused by water flow impact. When the cooling wall 20 leaks and gas enters the guide groove 33, this included angle also adapts to the flow characteristics of the gas, enabling the gas to flow smoothly into the device to trigger subsequent monitoring actions, ensuring the accuracy and timeliness of the monitoring.

[0047] In this embodiment, the thickness of the baffle 36 gradually shrinks in the direction from the guide groove 33 to the valve body 41. During daily operation, when the cooling water 60 flows in, the tapered baffle 36 helps to smoothly guide the water flow around the through hole 361 above the baffle 36, preventing water flow impact from causing accidental displacement of the blocking block 37, ensuring that the blocking block 37 stably plays a water-blocking role. Once the cooling wall 20 leaks and gas enters, the tapered baffle 36 has less resistance to the flow of gas, enabling the gas to quickly pass through the through hole 361 and flow to the one-way valve mechanism 40, enhancing the responsiveness of the device to the leakage situation and optimizing the monitoring effect.

[0048] In this embodiment, the blocking block 37 is spherical. The spherical blocking block 37 has point contact or small area contact with the inner wall of the chamber, the baffle 36, and the boss 31, which has less friction than other shapes. During normal cooling water 60 flow, it can more flexibly float under the baffle 36 to accurately block the through hole 361. When the cooling wall 20 leaks and gas enters, the spherical blocking block 37 can easily change position under the push of the gas, roll down to the opening 32, and stably allow the gas to enter the device body 30 under the blowing of the gas, ensuring smooth progress of the monitoring process.

[0049] As Figure 4 , the monitoring system operation process:

[0050] S1, system initialization stage:

[0051] Before the cooling wall 20 of the blast furnace starts to work, the whole monitoring system is installed and debugged. The power supply is provided for the gas probe 50, the water temperature probe 51, the moving ring controller and the computer terminal to ensure the normal start of each device. The blocking block 37 is located below the baffle 36. Because the density is less than the cooling water 60 (about 1 kg / m 3 ), when the cooling water 60 does not flow, the valve core 42 of the one-way valve mechanism 40 is closed under the action of the spring 43 to prevent external impurities from entering the device.

[0052] S2, normal operation stage:

[0053] The cooling water 60 enters from the water inlet main pipe 12 below, flows through the water pipe 21 connected to the adjacent cooling wall 20, and then flows into the guide groove 33 through the water inlet pipe 34 on the water pipe 21, and finally enters the chamber of the device body 30. At this time, because the blocking block 37 has a density less than water and floats on the water surface, it blocks the through hole 361 of the baffle 36, so that the cooling water 60 can only flow along the predetermined path, i.e. from the water inlet pipe 34 to the water outlet pipe 35, to complete the normal cooling cycle and take away the heat of the cooling wall 20. The water temperature probe 51 monitors the temperature of the cooling water 60 in real time and continuously transmits the temperature signal to the moving ring controller. After the moving ring controller preliminarily processes the signal, it is transmitted to the computer terminal according to the preset communication protocol. The computer terminal software records and analyzes the temperature data to determine whether the heat exchange of the cooling wall 20 is in a normal state.

[0054] S3, water leakage detection stage:

[0055] When the cooling wall 20 is damaged and leaks, the gas in the blast furnace will enter the water pipe 34 along the leakage, and then enter the water inlet pipe 34. Because there is no cooling water 60 in the water inlet pipe 34 at this time, the blocking block 37 falls from the position of the through hole 361 of the baffle 36 to the position of the opening 32 of the boss 31 because the density is greater than the gas (the density of the gas is much smaller than that of water), and will not be pushed back to the through hole 361 again. The gas pushes the blocking block 37 to make it enter the device body 30 from the gap, and then the gas flows to the one-way valve mechanism 40 through the through hole 361 of the baffle 36.

[0056] S4, gas discharge and alarm stage:

[0057] After the gas reaches the one-way valve mechanism 40, the accumulated gas pressure overcomes the spring force of the spring 43, opening the valve core 42, and the gas is discharged through the one-way valve mechanism 40. Simultaneously, the gas probe 50 detects the gas passing through and quickly transmits the gas signal to the dynamic environment controller, which processes it and sends it to the computer. The computer, combining the abnormal temperature information from the water temperature probe 51 (if the cooling wall 20 leaks, the water temperature may fluctuate) and the signal from the gas probe 50, determines that the cooling wall 20 has a water leakage fault and immediately issues an audible and visual alarm signal to remind personnel to take timely repair measures to ensure the safe production of the blast furnace.

[0058] Example 2:

[0059] like Figure 2 , Figure 3 Based on the above embodiments, in this embodiment, the axes of the opening 32, through hole 361, and opening 38 coincide. Cooling water 60 flows from the inlet pipe 34 through the guide groove 33, the boss 31 opening 32, then to the baffle 36 through hole 361, and finally to the one-way valve mechanism 40 opening 38, forming a straight flow path. When the cooling wall 20 leaks water and gas enters, it also flows rapidly along this coincident axis, reducing energy loss and flow obstruction caused by fluid turning and collision, ensuring that the monitoring device responds quickly and accurately to water leakage.

[0060] In this embodiment, the water temperature probe 51 and the gas probe 50 are installed on the same straight line along the direction from the boss 31 to the valve body 41. When the cooling wall 20 leaks water, on the one hand, the water temperature probe 51 can promptly detect changes in the temperature of the cooling water 60, reflecting abnormal heat exchange; on the other hand, the gas probe 50 can quickly capture the signal of gas entering. Since both are on the same straight line, the time difference in data acquisition is minimal, facilitating rapid system integration and analysis, accurately determining the leakage status of the cooling wall 20, and improving the reliability and timeliness of monitoring.

[0061] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure. The following points need to be noted: In the accompanying drawings of the embodiments of this utility model, only the structures involved in the embodiments of this utility model are shown; other structures can refer to general designs. In the absence of conflict, features in the same embodiment and different embodiments of this utility model can be combined with each other. The above descriptions are merely exemplary embodiments of this utility model, and are not intended to limit the protection scope of this utility model. The protection scope of this utility model is determined by the appended claims.

Claims

1. A water leakage monitoring device for a blast furnace cooling stave, comprising a cooling stave (20) arranged between a furnace lining (11) and a furnace shell (10), and a water pipe (21) arranged between adjacent cooling staves (20), characterized in that, a water inlet pipe (34) and a water outlet pipe (35) are connected to each of the water pipes (21), the water inlet pipe (34) and the water outlet pipe (35) are connected to each of the water pipes (21), a guide groove (33) is further connected to the water inlet pipe (34), a device body (30) is arranged on the guide groove (33), a one-way valve mechanism (40) for releasing furnace gas is arranged on the end of the device body (30) away from the water inlet pipe (34), a cavity is arranged in the device body (30), and a water blocking mechanism is arranged in the cavity to prevent cooling water (60) from flowing to the one-way valve mechanism (40).

2. The water leakage monitoring device for a cooling stave of a blast furnace according to claim 1, characterized by The water blocking mechanism comprises a boss (31) arranged on the inner wall of the chamber, and the boss (31) is provided with an opening (32) for connecting the chamber and the guide groove (33); a baffle (36) is arranged above the boss (31) in the direction from the boss (31) to the one-way valve mechanism (40), the baffle (36) is arranged on the inner wall of the chamber, and the baffle (36) is provided with a through hole (361); a blocking block (37) capable of blocking the through hole (361) is further arranged between the baffle (36) and the boss (31), the density of the blocking block (37) is α, and α satisfies α < 1.2 kg / m 3 .

3. A water leakage monitoring device for a cooling stave of a blast furnace according to claim 2, characterized in that, an opening (38) is arranged on the device body (30), the one-way valve mechanism (40) comprises a valve body (41) arranged in the opening (38), a valve core (42) is arranged in the valve body (41) to close the opening (38), a spring (43) is arranged between the valve core (42) and the inner wall of the valve body (41) to connect the valve core (42) and the inner wall of the valve body (41), and the valve core (42) can close the opening (38) when the spring (43) is in an initial state.

4. A water leakage monitoring device for a cooling stave of a blast furnace according to claim 3, characterized in that a water temperature probe (51) is arranged in the boss (31), and a gas probe (50) is arranged on the inner wall of the cavity between the baffle (36) and the valve body (41).

5. A water leakage monitoring device for a cooling stave of a blast furnace according to claim 4, characterized in that The thickness of the guide groove (33) gradually decreases in the direction from the guide groove (33) to the one-way valve mechanism (40).

6. A water leakage monitoring device for a cooling stave of a blast furnace according to claim 5, characterized in that The included angle between the side walls of the guide groove (33) ranges from 40° to 45°.

7. A water leakage monitoring device for a cooling stave of a blast furnace according to claim 6, characterized in that The thickness of the baffle (36) gradually decreases in the direction from the guide groove (33) to the valve body (41).

8. A water leakage monitoring device for a cooling stave of a blast furnace according to claim 7, characterized in that The blocking block (37) is spherical.

9. A water leakage monitoring device for a cooling stave of a blast furnace according to claim 8, characterized in that The axes of the opening (32), the through hole (361) and the opening (38) coincide.

10. A water leakage monitoring device for a cooling stave of a blast furnace according to any one of claims 4-9, characterized in that, The installation positions of the water temperature probe (51) and the gas probe (50) are located on the same straight line in the direction from the boss (31) to the valve body (41).

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