A quick plug type cyclone nozzle for mining

Abstract

A mine quick plug type cyclone nozzle belongs to the technical field of mine dust falling equipment. It comprises a nozzle body, a quick plug connector connected below the nozzle body and a nozzle installed on the nozzle body. The nozzle body is internally provided with a semispherical cyclone cavity. The nozzle body is internally provided with a water inlet inclined hole which is tangent to the spherical surface of the semispherical cyclone cavity. The nozzle is communicated with the semispherical cyclone cavity. The diameter of the water inlet inclined hole is greater than one eighth of the diameter of the semispherical cyclone cavity and less than one third of the diameter of the semispherical cyclone cavity. The water body in the semispherical space is caused to reduce the kinetic energy loss caused by the cyclone collision, improve the water flow rate, and further improve the cyclone effect and the spraying range, while the dust falling effect and the windproof ability are superior. The water inlet amount in the semispherical cyclone cavity is sufficient, and the kinetic energy loss caused by the water body impact due to excessive water inlet is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust suppression equipment for mining, specifically relating to a quick-connect swirl nozzle for mining. Background Technology

[0002] As is well known, coal mining involves a large amount of dust. This dust not only affects the health of workers and reduces their visibility, but can also cause explosions when the dust concentration reaches a critical value. Therefore, a large number of water spray dust suppression devices are usually installed in the mine tunnels. Among them, the nozzle is one of the most important components of the dust suppression equipment. The nozzle turns water into water mist and sprays it over a wide area to capture dust in the air, thereby achieving the purpose of dust suppression. Currently, either air-water atomizing nozzles or Laval air-water nozzles are commonly used. Both types of nozzles spray water in an atomized form. Air-water atomizing nozzles primarily focus on a fine atomization effect and a wide coverage area, offering better sustained dust suppression with the same volume of water. However, they have poor wind resistance, and in mines with high ventilation, the water mist from air-water atomizing nozzles can easily deviate from the dust suppression area. Laval air-water nozzles, on the other hand, focus on high-speed water mist spraying. While they provide instantaneous dust suppression in a small area and have strong wind resistance, their dust suppression duration is shorter and the coverage area is smaller with the same volume of water, resulting in significant water waste. Furthermore, both types of nozzles rely on an air supply for atomization; insufficient air pressure will significantly reduce their atomization effect.

[0003] A swirl nozzle is a type of nozzle that uses the centrifugal force of water to generate a swirling flow and atomize it for spraying. Its advantages include the ability to produce a wide-area, wind-resistant water mist without requiring an air supply. However, current swirl nozzles are less effective at atomization and coverage than traditional wind-blown water atomizing nozzles, and their spray speed and wind resistance are inferior to Laval wind-blown water nozzles, placing them in a somewhat awkward position. Practical and experimental research has revealed that this is mainly due to the significant loss of kinetic energy caused by the water colliding with each other within the cylindrical space during centrifugal rotation. Existing technologies, such as the "swirl nozzle" provided in Chinese Utility Model Patent Publication No. CN87214261U, use a narrow-diameter throat as a channel to connect the nozzle cavity. As seen in the diagram, the diameter of the narrow-diameter throat is close to the radius of the nozzle cavity. This not only results in a smaller swirling flow but also makes the water more prone to collisions and kinetic energy loss, thus failing to achieve the desired atomization effect, coverage, spray speed, and wind resistance.

[0004] In view of the aforementioned problems, it is necessary to design a quick-insertion vortex nozzle for mining that is simple in structure, low in cost, can reduce water kinetic energy loss, and has a strong vortex effect. To this end, the applicant has conducted positive and beneficial research, resulting in the technical solution described below. Utility Model Content

[0005] The objective of this invention is to provide a quick-insertion swirl nozzle for mining, which helps to improve the swirl structure to reduce kinetic energy loss caused by water impact, thereby improving the swirl effect and spray range of the nozzle, and thus improving dust suppression and wind resistance.

[0006] The present invention achieves its objective as follows: a quick-connect swirl nozzle for mining includes a nozzle body, a quick-connect connector connected to the lower part of the nozzle body, and a nozzle mounted on the nozzle body. The nozzle body contains a hemispherical swirl cavity, and a downward-facing inclined inlet hole tangent to the spherical surface of the hemispherical swirl cavity is also formed within the nozzle body. The nozzle communicates with the hemispherical swirl cavity. The diameter of the inclined inlet hole is greater than one-eighth the diameter of the hemispherical swirl cavity, and less than one-third the diameter of the hemispherical swirl cavity.

[0007] In a specific embodiment of this utility model, a water inlet pipe is formed below the nozzle body, and the two ends of the water inlet oblique hole are respectively connected to the water inlet pipe and the hemispherical vortex cavity. The upper end of the quick-connect connector is detachably connected to the water inlet pipe by means of a thread.

[0008] In another specific embodiment of this utility model, the nozzle body has an internal threaded hole at the position of the hemispherical swirling cavity facing the nozzle, the nozzle is provided with an external thread for screwing into the internal threaded hole, and a nozzle sealing ring is fitted on the external thread of the nozzle.

[0009] In another specific embodiment of this utility model, the nozzle is further provided with a water spray hole for connecting the hemispherical swirling cavity with the outside. The water spray hole has a narrowed horn-shaped opening at one end facing the hemispherical swirling cavity and an expanded open opening at the other end facing the outside.

[0010] In another specific embodiment of this utility model, the quick-connect connector is a tubular structure that runs vertically through the connector, and a hexagonal nut is formed on the outer periphery of the upper end of the quick-connect connector.

[0011] In another specific embodiment of this utility model, a quick-connect connector connecting screw hole is provided in the upper end of the quick-connect connector, and a quick-connect connector connecting screw hole sealing ring is placed at the bottom of the quick-connect connector connecting screw hole.

[0012] In a further specific embodiment of this utility model, a quick-connect groove is formed on the outer periphery of the middle part of the quick-connect connector.

[0013] In a more specific embodiment of this utility model, a quick-connect sealing ring is fitted on the lower outer periphery of the quick-connect connector.

[0014] The present invention, by adopting the above-mentioned structure, has the following beneficial effects: First, due to the use of a hemispherical vortex cavity tangentially connected to the inlet inclined pipe and the limitation of the diameter relationship between the inlet inclined pipe and the hemispherical vortex cavity, the kinetic energy loss caused by the vortex collision of water in the hemispherical space is greatly reduced, effectively increasing the water flow velocity, thereby improving the vortex effect and spray range, while also making the dust suppression effect and windproof capability superior; Second, the diameter relationship between the inlet inclined pipe and the hemispherical vortex cavity ensures sufficient water intake in the hemispherical vortex cavity without causing kinetic energy loss due to water collision caused by excessive water intake. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a planar sectional view of the nozzle body described in this utility model; Figure 3 This is a schematic diagram of the usage state of an embodiment of the present invention.

[0016] In the diagram: 1. Nozzle body, 11. Hemispherical vortex chamber, 12. Water inlet pipe, 13. Water inlet oblique hole, 14. Internal threaded hole; 2. Quick connector, 21. Quick connector connecting screw hole, 211. Quick connector connecting screw hole sealing ring, 22. Quick connector groove, 23. Quick connector sealing ring, 24. Hexagonal nut; 3. Nozzle, 31. Water spray hole, 32. Narrow bevel, 33. Opening, 34. External thread, 35. Nozzle sealing ring. Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.

[0018] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on... Figure 1 The positions shown are for reference only and should not be construed as a particular limitation on the technical solutions provided by this utility model.

[0019] Please see Figure 1 , Figure 2 and Figure 3The diagram illustrates a nozzle body 1, a quick-connect connector 2 connected to the lower part of the nozzle body 1, and a nozzle 3 mounted on the nozzle body 1. The nozzle body 1 contains a hemispherical swirling cavity 11. A downward-facing inclined inlet hole 13, tangent to the spherical surface of the hemispherical swirling cavity 11, is also formed within the nozzle body 1. The nozzle 3 communicates with the hemispherical swirling cavity 11. The diameter of the inclined inlet hole 13 is greater than one-eighth the diameter of the hemispherical swirling cavity 11, and less than one-third the diameter of the hemispherical swirling cavity 11. In this embodiment, the diameter of the nozzle 3 is preferably one-quarter the diameter of the hemispherical swirling cavity 11.

[0020] The lower part of the aforementioned nozzle body 1 is provided with a water inlet pipe 12. The two ends of the aforementioned water inlet oblique hole 13 are respectively connected to the water inlet pipe 12 and the hemispherical vortex cavity 11. The upper end of the aforementioned quick connector 2 is detachably connected to the aforementioned water inlet pipe 12 by means of a thread.

[0021] Furthermore, the aforementioned nozzle body 1 has an internal threaded hole 14 at the position of the hemispherical swirling cavity 11 facing the nozzle 3, the aforementioned nozzle 3 is provided with an external thread 34 for screwing into the aforementioned internal threaded hole 14, and a nozzle sealing ring 35 is fitted on the external thread 34 of the aforementioned nozzle 3.

[0022] The aforementioned nozzle 3 is also provided with a water spray hole 31 for connecting the hemispherical swirling cavity 11 with the outside. The water spray hole 31 has a narrowed horn mouth 32 at one end facing the hemispherical swirling cavity 11 and an expanded open mouth 33 at the other end facing the outside.

[0023] Please see Figure 1 and Figure 3The aforementioned quick-connector 2 is a tubular structure extending vertically, with a hexagonal nut 24 formed on the outer circumference of its upper end. A quick-connector connecting screw hole 21 is formed inside the upper end of the aforementioned quick-connector 2, and a quick-connector connecting screw hole sealing ring 211 is placed at the bottom of the aforementioned quick-connector connecting screw hole 21. When the aforementioned nozzle body 1 and quick-connector 2 are connected, the quick-connector 2 is fixed by the hexagonal nut 24, and the nozzle body 1 is rotated to make the quick-connector connecting screw hole 21 threadedly connected to the outer side of the water inlet pipe 12, and sealed by the quick-connector connecting screw hole sealing ring 211. A quick-connect groove 22 is formed on the outer circumference of the middle part of the aforementioned quick-connector 2. A quick-connect sealing ring 23 is fitted on the lower outer circumference of the aforementioned quick-connect connector 2. In actual use, the quick-connect connector 2 is quickly inserted into the quick-connect female connector. The quick-connect female connector forms a sealed connection with the quick-connect connector 2 through the quick-connect sealing ring 23. The quick-connect female connector has claws for securing itself in the quick-connect slot 22. Since the structures of the quick-connect connector 2 and quick-connect female connector that interact are numerous and represent standard industry technology, differing only in the claw structure and unlocking method of the quick-connect female connector, the specific structure of the quick-connect female connector will not be described in detail here.

[0024] Please continue reading. Figures 1 to 3 When the nozzle is needed, the quick-connect connector 2 is inserted into the quick-connect female connector at the end of the water pipe. The water enters the quick-connect connector 2 through the quick-connect female connector and enters the inlet pipe 13 through the inlet pipe 12. The water enters the hemispherical vortex cavity 11 along the tangent of the spherical surface of the hemispherical vortex cavity 11 through the inlet pipe 13. The water rotates and accelerates continuously on the spherical surface of the hemispherical vortex cavity 11, generating a vortex. The vortex enters the spray hole 31 through the horn 32 and is compressed. After flowing through the spray hole 31, it is accelerated and sprayed out through the open mouth 33, which generates the Laval effect. Thus, when the quick-connect vortex nozzle is actually spraying, it will form a vortex water mist with strong vortex effect, large spray range and strong wind resistance.

[0025] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the utility model task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A quick-connect swirl nozzle for mining, comprising a nozzle body (1), a quick-connect connector (2) connected below the nozzle body (1), and a nozzle (3) mounted on the nozzle body (1), characterized in that: The nozzle body (1) has a hemispherical swirling cavity (11) inside. The nozzle body (1) also has a downward-facing water inlet oblique hole (13) that is tangent to the spherical surface of the hemispherical swirling cavity (11). The nozzle (3) is connected to the hemispherical swirling cavity (11). The diameter of the water inlet oblique hole (13) is greater than one-eighth of the diameter of the hemispherical swirling cavity (11), and the diameter of the water inlet oblique hole (13) is less than one-third of the diameter of the hemispherical swirling cavity (11).

2. The quick-insertion vortex nozzle for mining according to claim 1, characterized in that: The nozzle body (1) has a water inlet pipe (12) below it. The two ends of the water inlet oblique hole (13) are connected to the water inlet pipe (12) and the hemispherical vortex cavity (11) respectively. The upper end of the quick connector (2) is detachably connected to the water inlet pipe (12) by means of a thread.

3. A quick-insertion vortex nozzle for mining according to claim 1, characterized in that: The nozzle body (1) has an internal threaded hole (14) at the position of the hemispherical swirling cavity (11) facing the nozzle (3). The nozzle (3) is provided with an external thread (34) for screwing into the internal threaded hole (14), and a nozzle sealing ring (35) is fitted on the external thread (34) of the nozzle (3).

4. A quick-insertion vortex nozzle for mining according to claim 1, characterized in that: The nozzle (3) is also provided with a water spray hole (31) for connecting the hemispherical swirling cavity (11) with the outside. The water spray hole (31) has a narrowed horn mouth (32) at one end facing the hemispherical swirling cavity (11) and an expanded open mouth (33) at the other end facing the outside.

5. A quick-insertion vortex nozzle for mining according to claim 1, characterized in that: The quick-connector (2) is a tubular structure that runs vertically through the top and bottom, and a hexagonal nut (24) is formed on the outer periphery of the upper end of the quick-connector (2).

6. A quick-insertion vortex nozzle for mining according to claim 5, characterized in that: A quick-connect connector connecting screw hole (21) is provided in the upper end of the quick-connect connector (2), and a quick-connect connector connecting screw hole sealing ring (211) is placed at the bottom of the quick-connect connector connecting screw hole (21).

7. A quick-insertion vortex nozzle for mining according to claim 5, characterized in that: A quick-connect groove (22) is provided on the outer periphery of the middle part of the quick-connect connector (2).

8. A quick-insertion vortex nozzle for mining according to claim 5, characterized in that: A quick-connect sealing ring (23) is fitted on the lower outer periphery of the quick-connect connector (2).

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