Energy-saving blowing nozzle

Abstract

The utility model discloses an energy -saving type blows and sprays head, belongs to the field of sprayer, including threaded connector, threaded connector one end is connected with outside fluid delivery pipeline, and the other end of threaded connector is equipped with gasket, and one side of gasket is equipped with nozzle, and nozzle is connected with threaded connector threadedly, and gasket is pressed in the end portion of threaded connector, one side of nozzle is equipped with sprayer, and sprayer inside is equipped with flow guide chamber, and flow guide chamber is opposite nozzle, and both sides of sprayer are connected with gasket through support rod, and sprayer is equipped with the flow gap between nozzle, and the utility model discloses a sprayer is set up to one side of nozzle, and the flow gap is set up between nozzle and sprayer, and the negative pressure drainage structure formed between sprayer and nozzle when spraying, effectively increased the actual flow of sprayer export, need not extra improve the input pressure or flow of compressed air, can satisfy the use demand to reduce the energy -consumption of compressed air greatly, reduced energy cost.

Description

Technical Field

[0001] This utility model belongs to the field of nozzles, and specifically relates to an energy-saving air blowing nozzle. Background Technology

[0002] In industrial spraying, surface cleaning, and drying operations, air nozzles, as core actuators, are widely used in automotive manufacturing, electronic assembly, food processing, and metal processing. Their working principle utilizes compressed air as a power source, using a specially structured nozzle to expel gas or a gas-liquid mixture at a certain pressure and flow rate to achieve tasks such as spraying, dust removal, cooling, and drying of workpiece surfaces. However, traditional nozzle designs suffer from significant energy efficiency deficiencies.

[0003] The injection pressure directly depends on the supply pressure of the compressed air system, and the production cost of compressed air accounts for 10%-15% of industrial energy consumption. To meet high-pressure requirements, enterprises need to configure high-power air compressors and maintain high-pressure operation, resulting in serious waste of electricity. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an energy-saving air nozzle to solve the problem of high energy consumption of existing air nozzles.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An energy-saving air blowing nozzle includes a threaded connector. One end of the threaded connector is connected to an external fluid delivery pipeline, and the other end of the threaded connector is provided with a gasket. A nozzle is provided on one side of the gasket, and the nozzle is threadedly connected to the threaded connector, pressing the gasket tightly against the end of the threaded connector. A nozzle head is provided on one side of the nozzle head, and a flow guiding cavity is provided inside the nozzle head, with the flow guiding cavity facing the nozzle. Both sides of the nozzle head are connected to the gasket via support rods, and a flow gap is provided between the nozzle head and the nozzle.

[0007] Furthermore, the guide cavity is a conical structure with a large inlet cross-section and a small outlet cross-section. After the high-pressure fluid is injected into the guide cavity through the nozzle, it flows in a gradually contracting manner along the conical cavity wall.

[0008] Furthermore, the air inlet and outlet of the flow guide cavity are both circular hole structures, or the air inlet of the flow guide cavity is a circular hole structure and the air outlet is a rectangular or fan-shaped structure.

[0009] Furthermore, the support rod is welded to or threadedly connected to the gasket.

[0010] Furthermore, the upper end of the threaded connector, the lower end of the nozzle, and both sides of the gasket are provided with sealing grooves, and sealing rings are provided in the sealing grooves.

[0011] Furthermore, the lower part of the nozzle is provided with a flow guide shroud, and the support rod is connected to the flow guide shroud. The flow guide shroud has a funnel-shaped cross-section, which guides the supplementary air entering through the flow gap.

[0012] Furthermore, a spring is fitted around the outside of the support rod, with one end of the spring abutting against a gasket and the other end abutting against a flow guide. An adjusting nut is threaded onto the upper end of the support rod to adjust the relative distance between the nozzle and the spray head, thereby controlling the size of the flow gap.

[0013] The beneficial effects of this utility model are:

[0014] (1) By setting a nozzle on one side of the nozzle and setting a flow gap between the nozzle and the nozzle, the negative pressure flow structure formed between the nozzle and the nozzle during the blowing process effectively increases the actual flow rate of the nozzle outlet. It can meet the usage requirements without having to increase the input pressure or flow rate of compressed air, thereby greatly reducing the energy consumption of compressed air and lowering the energy cost.

[0015] (2) The guide cavity is a conical structure with a large inlet cross section and a small outlet cross section. When the high-pressure fluid is injected into the guide cavity through the nozzle, it will undergo a gradual contraction flow along the conical cavity wall. The fluid velocity increases in the contraction section of the guide cavity, which improves the spray parameters of the nozzle.

[0016] (3) The air outlet of the guide cavity can be designed as a round hole, a rectangular hole or a fan-shaped structure according to the industry, working conditions and other operational needs, so as to realize the flexible selection of the spray pattern.

[0017] (4) By setting a sealing ring, the sealing between the threaded connector, gasket and nozzle is ensured.

[0018] (5) By setting up a flow guide, the turbulence, eddies and other disturbances caused by the direct radial impact of air on the main fluid are avoided, ensuring that the main fluid maintains a stable flow trajectory during the mixing process with the supplementary air, reducing pressure fluctuations and energy loss caused by airflow disturbance, making the airflow pressure and flow rate at the nozzle outlet more uniform, and improving the consistency of the operation effect.

[0019] (6) By setting the flow gap adjustment structure, the flow gap can be adjusted, so that the air blowing nozzle can meet the different working requirements and the adaptability of the air blowing nozzle to fluids of different viscosities. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an energy-saving air blowing nozzle according to this utility model.

[0021] Figure 2 This is a schematic diagram of an energy-saving air blowing nozzle according to this utility model.

[0022] Figure 3 This is a schematic diagram of an energy-saving air blowing nozzle according to this utility model.

[0023] Figure 4 This is a schematic diagram of an energy-saving air blowing nozzle according to this utility model.

[0024] In the diagram, 1. Threaded connector; 2. Gasket; 3. Nozzle; 4. Spray head; 5. Support rod; 6. Spring; 7. Adjusting nut; 8. Flow guide cavity; 9. Flow guide cover; 10. Sealing groove; 11. Sealing ring. Detailed Implementation

[0025] The following will be combined with the appendix Figures 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figure 1 As shown, an energy-saving air blowing nozzle includes a threaded connector 1, one end of which is connected to an external fluid delivery pipe, and the other end of the threaded connector 1 is provided with a gasket 2, such as... Figure 2 , Figure 3 As shown, a nozzle 3 is provided on one side of the gasket 2. The nozzle 3 is threadedly connected to the threaded connector 1 and presses the gasket 2 against the end of the threaded connector 1. A nozzle 4 is provided on one side of the nozzle 3. A flow guide cavity 8 is provided inside the nozzle 4. The flow guide cavity 8 is directly opposite the nozzle 3. The two sides of the nozzle 4 are connected to the gasket 2 through support rods 5, and a flow gap is provided between the nozzle 4 and the nozzle 3.

[0028] Before use, screw the threaded connector 1 into the external fluid delivery pipe, put on the gasket 2, and tighten the nozzle 3 to fix the gasket 2 and the nozzle 4, completing the installation of the air-blowing nozzle 4. During use, turn on the fluid delivery; the high-pressure fluid is blown into the guide chamber 8 of the nozzle 4 in a jet manner through the nozzle 3. Simultaneously, as the air between the nozzle 4 and the nozzle 3 is ejected, a negative pressure is created between them, attracting air from around the nozzle 3 to fill the gap between them and be ejected from the nozzle 4 along with the main fluid. This method effectively increases the actual flow rate at the nozzle 4 outlet, meeting usage requirements without requiring additional increases in the input pressure or flow rate of compressed air, thus significantly reducing compressed air energy consumption and lowering energy costs.

[0029] like Figure 2 As shown, the guide cavity 8 is a conical structure with a large inlet cross-section and a small outlet cross-section. When the high-pressure fluid is injected into the guide cavity 8 through the nozzle 3, it will undergo a gradual contraction flow along the conical cavity wall. According to Bernoulli's principle, when the high-pressure fluid is blown out of the nozzle 3 in a jet manner and enters the guide cavity 8, the fluid velocity increases in the contraction section of the guide cavity 8 (i.e., during the process of flowing from the large cross-section end to the small cross-section end), which improves the injection parameters of the nozzle 4.

[0030] like Figure 2 As shown, both the air inlet and outlet of the flow guide cavity 8 are circular hole structures, or, as... Figure 3 As shown, the air inlet of the guide cavity 8 is a circular hole structure, and the air outlet is a rectangular or fan-shaped structure. By uniformly setting the air inlet of the guide cavity 8 to a circular hole structure, the stability of fluid injection is ensured. At the same time, the air outlet is designed with optional shapes such as circular hole, rectangle, or fan shape, which realizes the flexible selection of spray pattern and adapts to various operational needs in different industries and working conditions. For example, the fan-shaped nozzle can form a large-area, low-impact diffusion airflow, which is suitable for the need for uniform coating coverage in spraying operations; the circular nozzle can maintain high concentration and impact force of airflow, which is suitable for high-intensity cleaning, precision component drying and other scenarios; the rectangular nozzle can form uniform coverage for long strip-shaped workpieces and reduce blind spots in operation.

[0031] The support rod 5 is welded to or threaded to the gasket 2.

[0032] like Figure 4 As shown, the upper end of the threaded connector 1, the lower end of the nozzle 3, and both sides of the gasket 2 are provided with sealing grooves 10. A sealing ring 11 is provided in the sealing groove 10. The sealing ring 11 between the gasket 2 and the threaded connector 1 ensures the sealing between the gasket 2 and the threaded connector 1, and the sealing ring 11 between the gasket 2 and the nozzle 3 ensures the sealing between the gasket 2 and the nozzle 3.

[0033] like Figures 1-3As shown, the nozzle 3 is provided with a flow guide shroud 9 at the bottom, and the support rod 5 is connected to the flow guide shroud 9. The flow guide shroud 9 has a funnel-shaped cross-section, which guides the supplementary air entering through the flow gap, so that the air flows obliquely along the inner wall of the flow guide shroud 9 to the air inlet end of the flow guide cavity 8. This avoids turbulence, eddies and other disturbances caused by the air directly impacting the main fluid in a radial direction, ensuring that the main fluid maintains a stable flow trajectory during the mixing process with the supplementary air, reducing pressure fluctuations and energy loss caused by airflow disturbance, making the airflow pressure and flow rate at the nozzle 4 outlet more uniform, and improving the consistency of the operation effect.

[0034] like Figure 2 , Figure 3 As shown, a spring 6 is sleeved on the outside of the support rod 5. One end of the spring 6 abuts against the gasket 2, and the other end of the spring 6 abuts against the flow guide shroud 9. An adjusting nut 7 is threadedly connected to the upper end of the support rod 5, which is used to adjust the relative distance between the nozzle 4 and the nozzle 3, thereby controlling the size of the flow gap. This allows the air blowing nozzle 4 to flexibly adjust the gap according to different working requirements, such as spray pressure and flow rate, to meet diverse operating scenarios. Parameter optimization can be completed by rotating the adjusting nut 7 without replacing parts, greatly improving the equipment's flexibility in adapting to fluids of different viscosities (such as gas-liquid mixtures during spraying and air during cleaning).

[0035] The above content is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the utility model, they should all fall within the protection scope of this utility model.

Claims

1. An energy-saving air blowing nozzle, comprising a threaded connector, one end of which is connected to an external fluid delivery pipeline, and the other end of which is provided with a gasket. A nozzle is provided on one side of the gasket, and the nozzle is threadedly connected to the threaded connector, pressing the gasket tightly against the end of the threaded connector; characterized in that, The nozzle has a nozzle head on one side, and a flow guiding cavity is provided inside the nozzle head. The flow guiding cavity is directly opposite the nozzle. The two sides of the nozzle head are connected to the gasket through support rods, and a flow gap is provided between the nozzle head and the nozzle.

2. The energy-saving air blowing nozzle according to claim 1, characterized in that, The flow guide cavity is a conical structure with a large inlet cross-section and a small outlet cross-section. After the high-pressure fluid is injected into the flow guide cavity through the nozzle, it flows in a gradually contracting manner along the conical cavity wall.

3. The energy-saving air blowing nozzle according to claim 1, characterized in that, The air inlet and outlet of the flow guide cavity are both circular holes, or the air inlet of the flow guide cavity is a circular hole and the air outlet is a rectangular or fan-shaped structure.

4. The energy-saving air blowing nozzle according to claim 1, characterized in that, The support rod is welded to or threaded to the gasket.

5. An energy-saving air-blowing nozzle according to claim 1, characterized in that, The threaded connector has sealing grooves at its upper end, the lower end of the nozzle, and both sides of the gasket, and sealing rings are provided in the sealing grooves.

6. An energy-saving air-blowing nozzle according to any one of claims 1-5, characterized in that, The nozzle is provided with a flow guide shroud at the bottom, and the support rod is connected to the flow guide shroud. The flow guide shroud has a funnel-shaped cross-section, which guides the supplementary air that enters through the flow gap.

7. An energy-saving air-blowing nozzle according to claim 6, characterized in that, A spring is fitted around the outside of the support rod. One end of the spring abuts against the gasket, and the other end of the spring abuts against the flow guide. An adjusting nut is threaded onto the upper end of the support rod to adjust the relative distance between the nozzle and the spray head, thereby controlling the size of the flow gap.

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