Self-adaptive air correlation turbulent flow atomizing nozzle

Abstract

The invention discloses a self-adaptive air correlation turbulent flow atomizing nozzle, which comprises a nozzle base, a flow guide hole, a flow guide plate and a flow guide plate, the nozzle head is detachably connected to one end of the nozzle base, a concave nozzle opening is formed in the nozzle head, a water outlet is formed in the center of the nozzle head and communicates with the flow guide hole, an annular air chamber is formed in the nozzle head, and the annular air chamber communicates with the nozzle opening through a first air outlet hole and a second air outlet hole which are symmetrically formed in the side wall of the nozzle opening; the air inlet pipe is fixed on the outer wall of the nozzle base, and one end of the air inlet pipe penetrates through the nozzle base and is communicated with the annular air chamber; a pressure cavity is formed in the nozzle base, the pressure regulating mechanism is installed in the pressure cavity, the pressure cavity is communicated with the air inlet pipe through a connecting pipe, and the pressure regulating mechanism penetrates through the side wall of the pressure cavity and extends into the flow guide hole. External mixing type turbulent flow atomization is adopted, air flow and water flow are not mutually mixed, the water flow is sprayed out through the direct flushing spraying holes, and the nozzle is prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine dust reduction equipment, in particular to an adaptive air-injection turbulent flow atomizing nozzle. Background Art

[0002] In the coal mining industry, atomizing nozzles are mainly used for spray dust reduction. The main dust prevention measure in my country's coal mines is spray dust reduction, and the nozzle is the most basic element of spray dust reduction. Its atomization ability (mist flow shape and mist particle size) directly determines the effect of spray dust reduction. The water flow is pressed into the nozzle through a high-pressure system. The nozzle atomizes the water flow into extremely fine water mist particles and sprays them out at a high speed. The water mist particles collide with the dust suspended in the air and adhere to its surface, thereby increasing the dust's own weight and accelerating its sedimentation to achieve the purpose of dust reduction.

[0003] When in use, traditional dust suppression nozzles have problems such as being unable to adapt to adjustments, having complex internal structures, having too many vents, and being easily clogged in working environments with excessive coal dust. Based on this, the present invention provides an adaptive air-injection turbulent atomizing nozzle. Summary of the invention

[0004] The purpose of the present invention is to provide an adaptive air-injection turbulent flow atomizing nozzle to solve the problems existing in the prior art.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides an adaptive air-injection turbulent atomizing nozzle, comprising:

[0006] A nozzle base, wherein a guide hole is provided at the center of the nozzle base;

[0007] A nozzle head, wherein the nozzle head is detachably connected to one end of the nozzle base, the nozzle head is provided with a concave nozzle away from the nozzle base, the nozzle is a frustum-shaped structure, a water outlet is provided at the center of the nozzle head, the water outlet is communicated with the guide hole, and the water outlet and the guide hole are coaxially arranged, an annular air chamber is provided in the nozzle head, and the annular air chamber is communicated with the nozzle through a first air outlet and a second air outlet symmetrically arranged on the side wall of the nozzle;

[0008] An air inlet pipe, wherein the air inlet pipe is fixed to the outer wall of the nozzle base, and one end of the air inlet pipe passes through the nozzle base and is connected to the annular air chamber;

[0009] A pressure regulating mechanism, a pressure chamber is provided on the nozzle base, the axis of the pressure chamber is parallel to the axis of the guide hole, the pressure regulating mechanism is installed in the pressure chamber, the pressure chamber is connected to the air inlet pipe through a connecting pipe, and the pressure regulating mechanism passes through the side wall of the pressure chamber and extends into the guide hole.

[0010] According to the adaptive air-injection turbulent atomizing nozzle provided by the present invention, the pressure regulating mechanism includes a piston slidably connected in the pressure chamber, a rack is horizontally slidably connected in the pressure chamber, one end of the rack is fixedly connected to the piston, a butterfly plate is rotatably connected in the guide hole, a valve stem is fixedly connected to one side of the butterfly plate, the valve stem passes through the guide hole, the pressure chamber and is rotatably connected to the nozzle base, a gear is fixedly connected to the valve stem, and the gear is meshed with the rack; one end of the rack is fixedly connected to a connecting rod, a spring is sleeved on the connecting rod, the spring is abutted against the rack, a clamp is detachably connected to the end of the pressure chamber, the clamp is fixed to the spring, and the clamp and the connecting rod are slidably matched.

[0011] According to the adaptive air-injection turbulent atomizing nozzle provided by the present invention, key slots are respectively provided on the gear and the valve stem, and the gear and the valve stem are fixedly matched by a positioning key.

[0012] According to the adaptive air-injection turbulent atomizing nozzle provided by the present invention, the valve stem and the butterfly plate are fixedly connected by a set screw.

[0013] According to the adaptive air-injection turbulent atomizing nozzle provided by the present invention, an internal thread is provided at the end of the nozzle base, and the nozzle base is threadedly connected to the nozzle head.

[0014] According to the adaptive air-injection turbulent atomizing nozzle provided by the present invention, the apertures of the first air outlet and the second air outlet are both 1 mm.

[0015] According to the adaptive air-injection turbulent atomizing nozzle provided by the present invention, the aperture of the water outlet is 1.5 mm-2 mm.

[0016] According to the adaptive air-injection turbulent atomizing nozzle provided by the present invention, the angle between the side surface of the nozzle and the center line of the nozzle head is 45°.

[0017] The present invention discloses the following technical effects:

[0018] When the present invention is working, the guide hole is connected to the water inlet pipe, and a water flow with a certain pressure is input into the guide hole through the water inlet pipe. The water flow is ejected through the water outlet, and the gas is input into the annular air chamber through the air inlet pipe and ejected through the first air outlet and the second air outlet. The gas and liquid are effectively impacted and collided in the nozzle part, so that they are sheared and broken to form water mist particles.

[0019] The present invention adopts external mixing turbulent flow atomization, which will not form the mutual connection between air flow and water flow. The water flow is sprayed out through the straight-flow spray hole to avoid nozzle clogging.

[0020] The present invention has only one direct current water outlet and two symmetrically arranged air outlets to output gas and water, has a simple design structure and is not easily damaged, and greatly improves the stability of the atomization effect.

[0021] The external mixing and opposite injection turbulent flow atomization method of the present invention has low requirements on water quality, is suitable for complex environments of mines and other conditions with difficult water quality, and does not affect the use of pneumatic equipment of the air duct unit when in working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is an axonometric view of the adaptive air-injection turbulent atomizing nozzle of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the adaptive air-injection turbulent flow atomizing nozzle of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the pressure regulating mechanism of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the clamp of the present invention.

[0027] Among them, 1. air inlet pipe; 2. guide hole; 3. nozzle base; 4. first air outlet; 5. water outlet; 6. nozzle head; 7. butterfly plate; 8. set screw; 9. positioning key; 10. internal thread; 11. second air outlet; 12. connecting pipe; 13. piston; 14. rack; 15. valve stem; 16. gear; 17. spring; 18. clamp. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figure 1-Figure 4The present invention provides an adaptive air-injection turbulent atomizing nozzle, comprising:

[0031] A nozzle base 3, wherein a flow guide hole 2 is provided at the center of the nozzle base 3;

[0032] A nozzle head 6, which is detachably connected to one end of the nozzle base 3, and is provided with a concave nozzle away from the nozzle base 3, and the nozzle is a frustum-shaped structure, and a water outlet 5 is provided at the center of the nozzle head 6, and the water outlet 5 is connected to the guide hole 2, and the water outlet 5 and the guide hole 2 are coaxially arranged, and an annular air chamber is provided in the nozzle head 6, and the annular air chamber is connected to the nozzle through a first air outlet 4 and a second air outlet 11 symmetrically arranged on the side wall of the nozzle;

[0033] An air inlet pipe 1 is fixed on the outer wall of the nozzle base 3, and one end of the air inlet pipe 1 passes through the nozzle base 3 and is connected to the annular air chamber;

[0034] The pressure regulating mechanism has a pressure chamber on the nozzle base 3, the axis of the pressure chamber is parallel to the axis of the guide hole 2, the pressure regulating mechanism is installed in the pressure chamber, the pressure chamber is connected to the air inlet pipe 1 through a connecting pipe 12, and the pressure regulating mechanism extends into the guide hole 2 through the side wall of the pressure chamber.

[0035] When the present invention is working, the guide hole 2 is connected to the water inlet pipe, and a water flow with a certain pressure is input into the guide hole 2 through the water inlet pipe. The water flow is ejected through the water outlet 5. The gas is input into the annular air chamber through the air inlet pipe 1 and ejected through the first air outlet 4 and the second air outlet 11. The gas and liquid are effectively impacted and collided in the nozzle part, so that they are sheared and broken to form water mist particles.

[0036] The present invention adopts external mixing turbulent flow atomization, which will not form the mutual connection between air flow and water flow. The water flow is sprayed out through the straight-flow spray hole to avoid nozzle clogging.

[0037] The present invention has only one direct current water outlet 5 and two symmetrically arranged air outlets to output gas and water, and has a simple design structure that is not easily damaged, thereby greatly improving the stability of the atomization effect.

[0038] The external mixing and opposite injection turbulent flow atomization method of the present invention has low requirements on water quality, is suitable for complex environments of mines and other conditions with difficult water quality, and does not affect the use of pneumatic equipment of the air duct unit when in working state.

[0039] A further optimized solution is provided, wherein the pressure regulating mechanism comprises a piston 13 slidably connected in the pressure chamber, a rack 14 is horizontally slidably connected in the pressure chamber, one end of the rack 14 is fixedly connected to the piston 13, a butterfly plate 7 is rotatably connected in the guide hole 2, a valve stem 15 is fixedly connected to one side of the butterfly plate 7, the valve stem 15 passes through the guide hole 2 and the pressure chamber and is rotatably connected to the nozzle base 3, a gear 16 is fixedly connected to the valve stem 15, and the gear 16 is meshed with the rack 14; a connecting rod is fixedly connected to one end of the rack 14, a spring 17 is sleeved on the connecting rod, the spring 17 is abutted against the rack 14, a clamp 18 is detachably connected to the end of the pressure chamber, the clamp 18 is fixed to the spring 17, and the clamp 18 is slidably matched with the connecting rod.

[0040] The air inlet pipe 1 inputs high-pressure gas into the annular air chamber, and the high-pressure gas transmits the pressure to the pressure chamber through the connecting pipe 12, and at the same time pushes the piston 13 in the pressure chamber, and the piston 13 pushes the rack 14 to slide horizontally, and the rack 14 drives the gear 16 and the valve stem 15 to rotate, and the rotation of the valve stem 15 drives the butterfly plate 7 to rotate, thereby opening the guide hole 2, and at the same time, the flow rate of water flow is controlled by the butterfly plate 7, so that the mutual balance between air pressure and water pressure can be achieved, and the water flow rate can be adjusted according to different situations, effectively ensuring the stability of the atomization effect. .

[0041] The shape of the butterfly plate 7 needs to be dynamically simulated to ensure that the outer contour of the butterfly plate 7 corresponds to the inner diameter of the guide hole 2, and arc-shaped transition surfaces are set on the two contour lines to ensure that the butterfly plate 7 can rotate stably.

[0042] To further optimize the solution, key grooves are respectively provided on the gear 16 and the valve stem 15 , and the gear 16 and the valve stem 15 are fixedly matched by a positioning key 9 .

[0043] According to a further optimized solution, the valve stem 15 and the butterfly plate 7 are fixedly connected by means of a set screw 8 .

[0044] According to a further optimized solution, an internal thread 10 is provided at the end of the nozzle base 3 , and the nozzle base 3 and the nozzle head 6 are threadedly connected.

[0045] According to a further optimized solution, the diameters of the first air outlet 4 and the second air outlet 11 are both 1 mm.

[0046] According to a further optimization scheme, the aperture of the water outlet 5 is 1.5 mm-2 mm.

[0047] According to a further optimization scheme, the angle between the side surface of the nozzle and the center line of the nozzle head 6 is 45°.

[0048] To further optimize the solution, the clamp 18 adopts a T-shaped external tooth nut, and a threaded groove is provided on the inner wall of the end of the pressure chamber, which is threadedly matched with the T-shaped external tooth nut, and a non-toothed surface is provided in the middle position. The connecting rod is slidably connected to the center position of the T-shaped external tooth nut, and an annular groove is provided on the outer wall of the connecting rod. A sealing rubber ring is provided in the annular groove, and the pressure chamber is sealed by the sealing rubber ring. At the same time, the end of the T-shaped external tooth nut is rotated to connect the gasket, which is fixed to the spring 17. In this way, the elastic force of the spring 17 can be relatively adjusted, thereby adjusting the ratio of water pressure and air pressure and adjusting the particle size of the water mist.

[0049] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An adaptive air-injection turbulent atomizing nozzle, characterized in that: include: A nozzle base (3), wherein a flow guide hole (2) is provided at the center of the nozzle base (3); A nozzle head (6), the nozzle head (6) being detachably connected to one end of the nozzle base (3), the nozzle head (6) being provided with a concave nozzle away from the nozzle base (3), the nozzle being of a frustum-shaped structure, a water outlet (5) being provided at the center of the nozzle head (6), the water outlet (5) being in communication with the flow guide hole (2), and the water outlet (5) and the flow guide hole (2) being coaxially arranged, an annular air chamber being provided in the nozzle head (6), the annular air chamber being in communication with the nozzle via a first air outlet (4) and a second air outlet (11) symmetrically arranged on the side wall of the nozzle; An air intake pipe (1), wherein the air intake pipe (1) is fixed on the outer wall of the nozzle base (3), and one end of the air intake pipe (1) passes through the nozzle base (3) and is connected to the annular air chamber; A pressure regulating mechanism, wherein a pressure chamber is provided on the nozzle base (3), the axis of the pressure chamber is parallel to the axis of the guide hole (2), the pressure regulating mechanism is installed in the pressure chamber, the pressure chamber is connected to the air inlet pipe (1) via a connecting pipe (12), and the pressure regulating mechanism passes through the side wall of the pressure chamber and extends into the guide hole (2).

2. The adaptive air-injection turbulent atomizing nozzle according to claim 1, characterized in that: The pressure regulating mechanism comprises a piston (13) slidably connected in the pressure chamber, a rack (14) is horizontally slidably connected in the pressure chamber, one end of the rack (14) is fixedly connected to the piston (13), a butterfly plate (7) is rotatably connected in the guide hole (2), a valve stem (15) is fixedly connected to one side of the butterfly plate (7), the valve stem (15) passes through the guide hole (2), the pressure chamber and is rotatably connected to the nozzle base (3), a gear (16) is fixedly connected to the valve stem (15), and the gear (16) is meshed with the rack (14); one end of the rack (14) is fixedly connected to a connecting rod, a spring (17) is sleeved on the connecting rod, and the spring (17) is in contact with the rack (14); a clamp (18) is detachably connected to the end of the pressure chamber, the clamp (18) is fixed to the spring (17), and the clamp (18) is slidably matched with the connecting rod.

3. The adaptive air-injection turbulent atomizing nozzle according to claim 2, characterized in that: The gear (16) and the valve stem (15) are respectively provided with key grooves, and the gear (16) and the valve stem (15) are fixedly matched via a positioning key (9).

4. The adaptive air-injection turbulent atomizing nozzle according to claim 2, characterized in that: The valve stem (15) and the butterfly plate (7) are fixedly connected via a set screw (8).

5. The adaptive air-injection turbulent atomizing nozzle according to claim 1, characterized in that: An internal thread (10) is provided at the end of the nozzle base (3), and the nozzle base (3) and the nozzle head (6) are threadedly connected.

6. The adaptive air-injection turbulent atomizing nozzle according to claim 1, characterized in that: The apertures of the first air outlet hole (4) and the second air outlet hole (11) are both 1 mm.

7. The adaptive air-injection turbulent atomizing nozzle according to claim 1, characterized in that: The aperture of the water outlet (5) is 1.5 mm-2 mm.

8. The adaptive air-injection turbulent atomizing nozzle according to claim 1, characterized in that: The angle between the side surface of the nozzle and the center line of the nozzle head (6) is 45°.

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