Device for detecting sealing performance of argon blowing nozzle

Abstract

The utility model discloses an argon blowing water gap sealing performance detection device, which comprises a water gap mechanism and an argon blowing detection mechanism, the water gap mechanism is arranged on a base, the water gap mechanism is composed of an upper water gap, a lower water gap jacket and a lower water gap, the lower water gap jacket is sleeved on the lower water gap, the upper water gap is arranged on the upper side of the lower water gap jacket, and the argon blowing detection mechanism is arranged on the upper side of the lower water gap jacket. And the argon blowing detection mechanism is arranged on the edge of the lower nozzle outer sleeve. According to the utility model, ignition is carried out after a propane gas pipe is inserted into the argon blowing detection mechanism, and the sealing effect of the nozzle is detected by observing the flame shape and size of the nozzle bowl mouth circular seam.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing test devices, and in particular to a sealing test device for an argon blowing nozzle. Background Technology

[0002] As a key component in the steelmaking casting process, the argon blowing nozzle's sealing performance directly affects the isolation effect between molten steel and air. If the argon blowing nozzle's sealing performance is poor, air will enter, leading to accelerated oxidation of the steel and problems such as internal defects and declining surface quality in the finished steel.

[0003] Existing technologies directly use specialized equipment to accurately measure key parameters such as argon flow rate and pressure in real time to determine the sealing performance of the argon blowing nozzle. Alternatively, a flow meter can be installed on the inlet pipe of the argon blowing nozzle to monitor the argon flow rate in real time. However, the harsh environment of steelmaking sites, such as high temperatures, high dust levels, and strong electromagnetic interference, affects the normal operation of the equipment and flow meter, leading to measurement data deviations and reduced measurement accuracy. Furthermore, this approach is costly and its effectiveness in detecting nozzle sealing is not significant. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an argon blowing nozzle sealing test device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an argon-blowing nozzle sealing detection device, including a nozzle mechanism and an argon-blowing detection mechanism. The nozzle mechanism is set on a base and consists of an upper nozzle, a lower nozzle sleeve, and a lower nozzle. The lower nozzle sleeve is fitted onto the lower nozzle. The upper nozzle is located on the upper side of the lower nozzle sleeve. The argon-blowing detection mechanism is provided on the edge of the lower nozzle sleeve.

[0006] As a further improvement of this utility model: the argon blowing detection mechanism consists of a gas pipe connector, a ball valve and a propane anti-backfire valve. One end of the gas pipe connector is connected to one end of the ball valve interface, and the other end of the ball valve interface is equipped with a propane anti-backfire valve.

[0007] As a further improvement of this utility model: the other end of the air pipe connector is disposed on the side of the drain outlet jacket, and the air pipe connector is connected to the inside of the drain outlet jacket.

[0008] Furthermore, the other end of the air pipe connector is provided with an external thread, and the outer sleeve of the drain outlet is provided with an internal thread interface that penetrates the interior, and the air pipe connector is threadedly connected to the outer sleeve of the drain outlet.

[0009] As a further improvement of this utility model: one end of the tracheal connector is provided with an external thread, one side of the ball valve interface is provided with an internal thread, one end of the tracheal connector is threadedly connected to one side of the ball valve interface, and the ball valve is connected to the propane tracheal pipe.

[0010] As a further improvement of this utility model, the propane anti-backfire valve is also fixedly installed on the other side of the ball valve.

[0011] As a further improvement of this utility model: the top center of the water inlet has an opening that extends to the bottom, the bottom of the water inlet forms a bowl shape, and the bottom of the water inlet is connected to the outer sleeve of the water outlet.

[0012] Furthermore, the opening from the top of the inlet to the bottom is funnel-shaped, and the size of the middle section of the inlet to the bottom is the same as the size of the opening of the outlet.

[0013] As a further improvement of this utility model: the top of the base is provided with a balanced support plate, one side of which is open and the opening is larger than the outer edge of the drain outlet.

[0014] Furthermore, the base consists of at least three supporting legs, with a hollow center.

[0015] Furthermore, the base support feet preferably consist of four components.

[0016] Furthermore, the base is provided with a support plate near the bottom for fixing support feet.

[0017] As a further improvement of this utility model: the drain outlet has an open top and a sealed bottom; the top plane of the drain outlet protrudes outward in a "T" shape; the bottom of the drain outlet sleeve is larger than the outer edge of the drain outlet; the top opening of the drain outlet sleeve is larger than the outward protrusion of the top plane of the drain outlet; and a bowl-shaped circumferential seam is formed at the connection between the bottom of the inlet and the drain outlet and the drain outlet sleeve.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Adding a detection mechanism to the outer edge of the drain outlet casing, inserting a propane quick connector into the detection mechanism for ignition testing, significantly improves the seal of the drain outlet and avoids the risk of accidental burns to personnel during inspection.

[0020] 2. Reduce investment in high-end equipment to lower production costs;

[0021] 3. It eliminates cumbersome procedures, is simple to operate, and is easy for beginners to use;

[0022] 4. It can quickly complete the test of mouth seal. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0024] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0025] Attached diagram descriptions: 1. Water inlet; 2. Water outlet jacket; 3. Gas pipe connector; 4. Ball valve; 5. Propane backfire prevention valve; 6. Water outlet; 7. Base. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0028] In order to solve the technical problems in the prior art, the present invention will be further described in conjunction with the accompanying drawings and embodiments:

[0029] like Figure 1 As shown in the figure, this utility model embodiment discloses an argon-blowing nozzle sealing performance testing device, including a nozzle mechanism and an argon-blowing testing mechanism. The nozzle mechanism is placed on a base 7 and consists of an upper nozzle 1, a lower nozzle sleeve 2, and a lower nozzle 6. The lower nozzle sleeve 2 is fitted over the lower nozzle 6 and placed on the base 7. The upper nozzle 1 is placed on the upper side of the lower nozzle sleeve 2, forming a bowl-shaped annular seam between the upper and lower nozzles. An argon-blowing testing mechanism is provided on the outer surface of the lower nozzle sleeve 2. In use, after the argon-blowing testing mechanism is connected to a propane gas pipe, the propane is ignited. The combustion shape of the ignited propane simulates the gas flow shape of argon gas passing through the bowl-shaped annular seam between the upper and lower nozzles to detect the sealing performance of the nozzle.

[0030] The argon blowing detection mechanism consists of a gas pipe connector 3, a ball valve 4, and a propane anti-backfire valve 5. The gas pipe connector 3 is located on the outside of the drain outlet jacket 2 and connects to the inside of the drain outlet jacket 2. The gas pipe connector 3 is equipped with a ball valve 4. After connecting the propane gas pipe to the ball valve 4, the propane is ignited. The shape of the flame between the upper water inlet 1 and the drain outlet jacket 2 is observed to determine the sealing performance. When the sealing performance is good, the flame shape is a regular and uniform annular slit, the flame is strong, and flames emerge from the joint between the upper and lower water inlets. When the sealing performance is poor, the flame shape is irregular, the flame is small, and no flames emerge from the joint, which proves that the argon gas sealing effect is poor and the water inlet sealing performance is poor.

[0031] Furthermore, a propane anti-backfire valve 5 is also fixedly installed on the other side of the ball valve 4 to prevent accidents caused by the fire circuit during propane ignition detection.

[0032] Furthermore, one end of the gas pipe connector 3 is welded to one side of the ball valve 4, and the other end of the gas pipe connector 3 is welded to the interface of the drain outlet sleeve 2. A propane anti-backfire valve 5 is welded to the other side of the ball valve 4. The welded components provide better sealing, are more durable, and have lower manufacturing costs. The ball valve is plugged into the propane gas pipe, allowing for quick insertion and ignition of the propane gas, thus completing the testing.

[0033] Furthermore, the air pipe connector 3 has external threads at both ends, and the drain outlet sleeve 2 has an internal thread interface that penetrates the interior. The other end of the air pipe connector 3 is threadedly connected to the drain outlet sleeve 2.

[0034] The ball valve 4 has an internal thread on one side of the interface, and one end of the gas pipe connector 3 is threaded to the interface on one side of the ball valve 4. The ball valve is plugged into and plugged into the propane gas pipe. A heat-resistant sealant is provided at each thread. The components are connected by threads to facilitate the replacement of damaged components.

[0035] like Figure 1 As shown, the upper water inlet 1 has a through opening in the middle and forms a bowl shape at the bottom. The bottom of the upper water inlet 1 is connected to the lower water inlet sleeve 2, so that the upper water inlet and the lower water inlet sleeve form an annular gap after contact, which makes it easy to observe the combustion shape of propane after ignition to simulate the gas flow shape of argon gas after passing through the annular gap of the water inlet bowl.

[0036] like Figure 2 As shown, the top support plate of the base 7 has an opening on one side, which is larger than the outer edge of the drain outlet 6. This makes it easy to place the drain outlet on the base without it getting stuck. Otherwise, when removing the drain outlet, it will get stuck on the base and cause the base to fall over together.

[0037] Furthermore, the base 7 is provided with support feet, preferably four support feet. The top of the support feet is provided with a support plate with an opening on one side. The four corners of the support plate are fixedly connected to the support feet. Near the bottom, another support plate is fixedly provided. At least two support plates can support the heavy sprue mold, play a stabilizing role, and prevent the sprue mechanism from falling and causing an accident.

[0038] The drain outlet 6 has an opening in the middle of the top and is sealed at the bottom. The top plane of the drain outlet 6 protrudes outward, forming a "T" shape. The drain outlet sleeve 2 has concave and convex openings at both ends. The bottom of the drain outlet sleeve 2 is larger than the outer edge of the drain outlet 6, and the top opening of the drain outlet sleeve 2 is larger than the outward protruding part of the top plane of the drain outlet 6, so that the drain outlet sleeve 2 can effectively fit the drain outlet 6. A bowl-shaped annular seam is formed at the connection between the bottom of the upper water outlet 1 and the drain outlet 6 and the drain outlet sleeve 2. The bowl-shaped annular seam is used to simulate the gas flow shape of argon after it passes through the bowl-shaped annular seam of the water outlet after the propane is ignited.

[0039] like Figure 1-2 As shown, this embodiment uses this device in continuous casting production. The lower nozzle sleeve 2 is fitted over the top of the lower nozzle 6 and placed on the base 7. The upper nozzle 1 is placed on the upper side of the lower nozzle sleeve 2 and aligned to form a bowl-shaped annular seam. The ball valve 4 on the gas pipe connector 3 connected to the lower nozzle sleeve 2 is connected to the propane gas pipe. Then, the propane is ignited. The flame combustion shape simulates the gas flow shape of argon gas after passing through the bowl-shaped annular seam of the nozzle. The flame shape between the upper nozzle 1 and the nozzle sleeve 2 is observed to determine the sealing performance. When the sealing performance is good, the flame shape is a regular and uniform annular seam shape, the flame is strong, and flames emerge from the joint between the upper and lower nozzles. When the sealing performance is poor, the flame shape is irregular, the flame is small, and no flames emerge from the joint, which proves that the argon gas sealing effect is poor. When the nozzle sealing performance is poor, the upper and lower nozzles need to be checked and adjusted to a state where good sealing performance is detected.

[0040] A propane backfire prevention valve 5 is also installed on the ball valve 4 to prevent accidents caused by the fire circuit during propane ignition detection.

[0041] Alternatively, the opening from the top of the inlet to the bottom can be funnel-shaped, with the size of the middle to lower section of the inlet being the same as the size of the outlet opening. This effectively prevents molten steel from overflowing the inlet and avoids accidents that could cause burns.

[0042] In summary, any other corresponding modifications made by those skilled in the art after reading this utility model document, based on the technical solution and concept of this utility model without creative mental effort, shall all fall within the scope of protection of this utility model.

Claims

1. A device for detecting the sealing performance of an argon-blowing nozzle, characterized in that: It includes a water inlet mechanism and an argon blowing detection mechanism. The water inlet mechanism is mounted on a base and consists of an upper water inlet, a lower water inlet sleeve, and a lower water inlet. The lower water inlet sleeve is fitted onto the lower water inlet, and the upper water inlet is placed on the upper side of the lower water inlet sleeve. The argon blowing detection mechanism is provided on the edge of the lower water inlet sleeve.

2. The argon-blowing nozzle sealing test device according to claim 1, characterized in that: The argon blowing detection mechanism consists of a gas pipe connector, a ball valve, and a propane anti-backfire valve. One end of the gas pipe connector is connected to one side of the ball valve, and the other side of the ball valve is equipped with a propane anti-backfire valve.

3. The argon-blowing nozzle sealing test device according to claim 2, characterized in that: The other end of the air pipe connector is located on the side of the drain outlet jacket, and the air pipe connector is connected to the inside of the drain outlet jacket.

4. The argon-blowing nozzle sealing test device according to claim 3, characterized in that: One end of the endotracheal connector is provided with an external thread, and one side of the ball valve interface is provided with an internal thread. One end of the endotracheal connector is threadedly connected to one side of the ball valve interface, and the ball valve is connected to the propane endotracheal pipe.

5. The argon-blowing nozzle sealing test device according to claim 4, characterized in that: The propane anti-backfire valve is also fixedly installed on the other side of the ball valve.

6. The argon-blowing nozzle sealing test device according to claim 1, characterized in that: The top center of the inlet has an opening that extends to the bottom, and the bottom of the inlet forms a bowl shape. The bottom of the inlet is connected to the outer sleeve of the outlet.

7. The argon-blowing nozzle sealing test device according to claim 6, characterized in that: The opening from the top of the inlet to the bottom is funnel-shaped, and the size of the opening from the middle to the bottom of the inlet is the same as the size of the opening of the outlet.

8. The argon-blowing nozzle sealing test device according to claim 1, characterized in that: The base is provided with a support plate on top, and one side of the support plate has an opening larger than the outer edge of the drain outlet.

9. The argon-blowing nozzle sealing test device according to claim 1, characterized in that: The drain outlet has an opening at the top and a seal at the bottom. The top plane of the drain outlet protrudes outward. The bottom opening of the drain outlet sleeve is larger than the outer edge of the drain outlet. The top opening of the drain outlet sleeve is larger than the outward protrusion of the top plane of the drain outlet. A bowl-shaped circumferential seam is formed at the connection between the bottom of the inlet and the drain outlet and the drain outlet sleeve.

Images