Gas-liquid integrated fluidic device

Abstract

The utility model relates to a kind of gas-liquid integrated fluidic device, belong to fluid jet technology field.The utility model includes: fluidic nozzle and compressed gas nozzle, the fluidic nozzle is laminated structure with compressed gas nozzle.The utility model adopts high-speed gas package fluidic fluid technology, can greatly reduce the speed attenuation of liquid jet affected by air resistance or liquid gasification problem.

Description

Technical Field

[0001] This utility model belongs to the field of fluid jet technology, specifically relating to a gas-liquid integrated jet ejector. Background Technology

[0002] In fluid jetting technology, the fluid's range is a key indicator determining operational efficiency, and its structural optimization is crucial for improving jetting efficiency, range, and media utilization. In recent years, fluid jetting technology has been widely applied in daily life, industry, agriculture, and environmental protection, and is particularly significant in scenarios requiring precise control of fluid distribution or extended range.

[0003] The specific areas of analysis are as follows:

[0004] 1. Daily life

[0005] Jet technology can be applied to daily life, such as irrigating balcony plants or cleaning windows. However, the current range of existing jet technology is relatively short, and its range advantage cannot be effectively utilized to complete the corresponding tasks in practical applications.

[0006] 2. Agricultural Irrigation and Plant Protection

[0007] Traditional agricultural spraying equipment generally suffers from uneven droplet size and limited range, resulting in water waste or insufficient pesticide coverage. Although the introduction of air-assisted atomization technology into existing spraying equipment (such as nozzles) can improve droplet uniformity, its single-sided gas channel design cannot form a symmetrical enveloping flow field, resulting in an asymmetrical spray fan and affecting irrigation or plant protection effects.

[0008] 3. Industrial spraying and surface treatment

[0009] In high-end industrial sectors such as automotive manufacturing and aerospace, the uniformity and adhesion of coatings directly depend on the performance of the spraying equipment. Traditional spraying equipment is prone to gas-liquid separation at the jet tip, leading to uneven droplet distribution. When these droplets adhere to the equipment surface, they form droplets on the coating surface, resulting in uneven coating after the paint dries. Furthermore, the short range of the fluid medium makes it difficult to meet the continuous spraying requirements of large workpieces.

[0010] 4. Fire protection and emergency extinguishing system

[0011] In firefighting, conventional jet spraying typically uses a gas-liquid mixing method to propel water towards the fire source. However, in practical applications, the range of this water mist is limited and cannot reliably cover the core area of ​​a high-rise building fire, necessitating the use of fire hoses to extend the water mist's range. Furthermore, existing designs have a narrow range for adjusting gas velocity, making it difficult to adapt to the dynamic needs of different fire scenarios.

[0012] 5. Surface cleaning and contaminant removal

[0013] Ultra-high pressure water jet technology can also be applied to the cleaning of large equipment, such as trains, ships, and airplanes. Traditional cleaning methods generally use high-pressure water guns, but the range of high-pressure water guns is still insufficient, and the energy consumption during cleaning is high, which also consumes a lot of resources and cannot effectively save water.

[0014] In summary, existing jet technology generally suffers from the following drawbacks:

[0015] 1. Single-channel or asymmetric gas distribution results in the liquid not being effectively protected, and the jet is affected by air resistance, resulting in a significant reduction in range;

[0016] 2. Although some technologies extend the range by increasing gas pressure, this can exacerbate secondary droplet breakup and cause over-atomization;

[0017] 3. Existing jet technology is prone to turbulence when mixing gas and liquid, resulting in significant loss of effective kinetic energy, which is also the main reason for the reduced range.

[0018] Therefore, there is an urgent need for a new jet technology that can achieve precise gas encapsulation, extend the range, and improve the utilization rate of the medium through structural optimization. Utility Model Content

[0019] The specific technical solution of this utility model is as follows:

[0020] A gas-liquid integrated jet injector includes a jet nozzle and a compressed gas nozzle, wherein the jet nozzle and the compressed gas nozzle have a sandwich structure.

[0021] Preferably, the jet nozzle orifice front flow channel has two mutually parallel first planes and / or first curved surfaces, and the compressed gas nozzle orifice front flow channel has two mutually parallel second planes and / or second curved surfaces.

[0022] Preferably, the length J of the flow channel at the front end of the jet nozzle is greater than or equal to the width H of the jet nozzle.

[0023] Preferably, the flow channel at the front end of the jet nozzle has a uniform cross-section structure.

[0024] Preferably, the jet nozzle sprays a flat high-pressure liquid jet, the compressed gas nozzle sprays a high-pressure gas jet, and the high-pressure gas jet is provided on one or both sides of the high-pressure liquid jet.

[0025] Preferably, the jet nozzle sprays a cylindrical high-pressure liquid jet, the compressed gas nozzle sprays a high-pressure gas jet, and the outer circumference of the high-pressure liquid jet is wholly or partially provided with a coaxial high-pressure gas jet.

[0026] Preferably, the distance between the two mutually parallel first planes is less than 2 mm and / or the distance between the two mutually parallel second planes is less than 2 mm.

[0027] Preferably, the distance between the two mutually parallel first curved surfaces is less than 2mm and / or the distance between the two mutually parallel second curved surfaces is less than 2mm.

[0028] Preferably, the flow channel at the front end of the jet nozzle is a constricted structure, and the flow channel at the front end of the compressed gas nozzle is a constricted structure.

[0029] Preferably, there are one or two compressed gas nozzles, which are located on one side of the jet nozzle or distributed on both sides.

[0030] Preferably, the nozzle of the jet nozzle and / or compressed gas nozzle is a V-shaped flared structure with an elliptical outlet.

[0031] Preferably, the jet nozzle and the compressed gas nozzle are an integral structure, collectively referred to as a gas-liquid nozzle.

[0032] Preferably, the gas-liquid nozzle is mounted on the mounting base, and the gas-liquid nozzle and the mounting base have an adjustable angle structure; the mounting base is respectively provided with a fluid channel and a compressed gas channel, the jet nozzle is in communication with the fluid channel on the mounting base, and the compressed gas nozzle is in communication with the compressed gas channel on the mounting base.

[0033] Preferably, the angle-adjustable structure is as follows: the rear end of the gas-liquid nozzle is a spherical body, and the mounting base is provided with a spherical cavity that is adapted to the spherical body of the gas-liquid nozzle.

[0034] Preferably, the angle-adjustable structure is as follows: the rear end of the gas-liquid nozzle is a cylinder, and the mounting base is provided with a cylindrical cavity that is compatible with the cylinder of the gas-liquid nozzle.

[0035] Preferably, the outlet of the fluid channel and / or compressed gas channel on the mounting base is a flared trough structure.

[0036] Preferably, the rear end of the jet nozzle and / or the rear end of the compressed gas nozzle is a flared groove structure.

[0037] This utility model has the following beneficial effects:

[0038] 1. This utility model adopts high-speed gas encapsulation jet fluid technology, which can greatly reduce the speed attenuation or liquid vaporization problem of liquid jet affected by air resistance, and can achieve high standard jet effect with less ultra-thin high-speed liquid fluid.

[0039] 2. The technology of this utility model has a wide range of applications, for example:

[0040] In the field of surface cleaning and contaminant removal: This technology can be applied to work surfaces that are not suitable for immersion in water, and the device can be used for cleaning, improving cleaning efficiency;

[0041] In the fields of agricultural irrigation and plant protection, traditional agricultural spraying equipment generally suffers from uneven droplet size and limited range, leading to water waste and insufficient pesticide coverage. This invention utilizes the encapsulation effect of gas on liquid to further expand the coverage area, making it suitable for long-distance, uniform spraying of field crops.

[0042] In the field of industrial spraying and surface treatment: In high-end industrial sectors such as automotive manufacturing and aerospace, the uniformity and adhesion of coatings directly depend on nozzle performance. The dual-sided gas "escort" in this invention suppresses droplet diffusion, extends the spray range, and reduces splashing losses during the spraying process, making it particularly suitable for efficient operations on large components. Furthermore, this technology prevents paint and other adhering fluids from vaporizing during spraying, and the high-speed airflow can quickly dry any remaining water stains or painted surfaces.

[0043] In the field of fire protection and emergency fire suppression systems: traditional fire sprinkler systems require large amounts of water and have limited coverage. This invention enhances the penetrating power of the water mist through gas encapsulation, effectively extinguishing deep-seated fires. Furthermore, this design further extends the range, making it suitable for precise fire suppression in high-rise buildings or confined spaces. Attached Figure Description

[0044] Figure 1 It is a three-dimensional gas-liquid integrated jet injector Figure 1 ;

[0045] Figure 2 It is a three-dimensional gas-liquid integrated jet injector Figure 2 ;

[0046] Figure 3 It is a three-dimensional gas-liquid integrated jet injector Figure 3 ;

[0047] Figure 4 It is a three-dimensional gas-liquid integrated jet injector Figure 4 ;

[0048] Figure 5 This is a schematic diagram of the structure in Example 3 where the flow channel at the front end of the jet nozzle is a parallel plane;

[0049] Figure 6 This is a schematic diagram of the structure of the jet nozzle orifice front flow channel as a parallel curved surface in Example 3;

[0050] Figure 7 This is a schematic diagram of the flow channel structure at the front end of the jet nozzle and the compressed gas nozzle fixed on one side in Example 3.

[0051] Figure 8This is a schematic diagram of the flow channel structure at the front end of the jet nozzle and the compressed gas nozzle fixed on both sides in Example 3.

[0052] Figure 9 This is the first arrangement of the compressed gas nozzle and the jet nozzle in Example 4;

[0053] Figure 10 This is the second arrangement of the compressed gas nozzle and the jet nozzle in Example 4;

[0054] Figure 11 This is the first arrangement of the compressed gas nozzle and the jet nozzle in Example 5;

[0055] Figure 12 This is the second arrangement of the compressed gas nozzle and the jet nozzle in Example 5;

[0056] Figure 13 This is the cross-sectional structure of the compressed gas nozzle and the jet nozzle in Example 7. Figure 1 ;

[0057] Figure 14 This is the cross-sectional structure of the compressed gas nozzle and the jet nozzle in Example 7. Figure 2 ;

[0058] Figure 15 yes Figure 14 Sectional view along line AA;

[0059] Figure 16 yes Figure 14 View from direction B;

[0060] Figure 17 It is a three-dimensional gas-liquid nozzle Figure 1 ;

[0061] Figure 18 It is a three-dimensional gas-liquid nozzle Figure 2 ;

[0062] Figure 19 This is a cross-sectional view of a gas-liquid nozzle;

[0063] Figure 20 yes Figure 19 C-axis sectional view;

[0064] Figure 21 yes Figure 19 Sectional view along the DD direction;

[0065] Figure 22 This is a three-dimensional cross-sectional view of the installation structure of the gas-liquid nozzle in the mounting base in Example 11;

[0066] Figure 23 This is a cross-sectional view of the installation structure of the gas-liquid nozzle in the mounting base in Example 11;

[0067] Figure 24 yes Figure 23 EE-directed sectional view;

[0068] Figure 25 yes Figure 23 Sectional view along the FF direction;

[0069] Figure 26 This is a three-dimensional cross-sectional view of the installation structure of the gas-liquid nozzle in the mounting base in Example 11;

[0070] Figure 27 This is a cross-sectional view of the installation structure of the gas-liquid nozzle in the mounting base in Example 11;

[0071] Figure 28 yes Figure 27 Central GG-direction sectional view;

[0072] Figure 29 This is a three-dimensional cross-sectional view of the installation structure of the gas-liquid nozzle in the mounting base in Example 12;

[0073] Figure 30 This is a cross-sectional view of the installation structure of the gas-liquid nozzle in the mounting base in Example 12;

[0074] Figure 31 yes Figure 30 Sectional view along the HH direction;

[0075] Figure 32 yes Figure 30 Sectional view in the middle II direction;

[0076] Figure 33 This is a schematic diagram of the velocity field of high-speed water flow in a relatively still air environment;

[0077] Figure 34 This is a schematic diagram showing the relationship between the distance the water flows forward and the speed of the water flow;

[0078] Figure 35 This is a schematic diagram showing the relationship between water flow velocity and range;

[0079] Figure 36 This is a schematic diagram illustrating the principle of water flow and air jet.

[0080] Figure 37 This is a schematic diagram of the jet nozzle (V-shaped flared structure with an elliptical outlet at the front end) in Example 9;

[0081] Figure 38 yes Figure 37 Sectional view along the JJ direction;

[0082] Figure 39 yes Figure 37 View from the center (K ​​direction).

[0083] In the figure, 100-jet nozzle, 200-compressed gas nozzle, 101-first plane, 102-first curved surface, 201-second plane, 202-second curved surface, 400-narrowing structure, 500-V-shaped flaring structure, 50-gas-liquid nozzle, 600-fluid channel, 700-compressed gas channel, 800-mounting base, 15-jet nozzle front end flow channel, 16-compressed gas nozzle front end flow channel, 17-non-nozzle front end flow channel. Detailed Implementation

[0084] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0085] Example 1

[0086] like Figure 1 As shown, a gas-liquid integrated jet injector includes a jet nozzle 100 and a compressed gas nozzle 200, wherein the jet nozzle 100 and the compressed gas nozzle 200 are sandwiched together. The sandwich structure may have two or more layers. For example, when the sandwich structure has two layers, the lower layer contains the compressed gas nozzle 200, and the upper layer contains the jet nozzle 100. When the sandwich structure has three layers, the middle layer contains the jet nozzle 100, and the upper and lower sides contain the compressed gas nozzles 200.

[0087] When the jet nozzle 100 and the compressed gas nozzle 200 are arranged in a sandwich structure, they are preferably arranged in a parallel structure.

[0088] The direction of liquid injection can be guided by adjusting the thickness of the high-pressure gas jet injected by the compressed gas nozzle 200.

[0089] In this embodiment, the jet nozzle 100 is configured to spray a high-pressure liquid jet, and the compressed gas nozzle 200 is configured to spray a high-pressure gas jet. The high-pressure gas jet "escorts" the high-pressure liquid jet, increasing its range. Specifically, the high-pressure gas jet reduces friction between the high-pressure liquid jet and the surrounding air, or the high-pressure gas jet forms an air curtain around the high-pressure liquid jet, reducing resistance and allowing the liquid to travel further.

[0090] Example 2

[0091] like Figure 2 As shown, the flow channel at the nozzle front end of the jet nozzle 100 includes two mutually parallel first planes 101, and the flow channel at the nozzle front end of the compressed gas nozzle 200 includes two mutually parallel second planes 201.

[0092] like Figure 3 As shown, the flow channel at the nozzle tip of the jet nozzle 100 includes two mutually parallel first curved surfaces 102; the flow channel at the nozzle tip of the compressed gas nozzle 200 includes two mutually parallel second curved surfaces 202.

[0093] like Figure 4 As shown, the nozzle front flow channel of the jet nozzle 100 includes a combination of two parallel first planes 101 and first curved surfaces 102; the nozzle front flow channel of the compressed gas nozzle 200 includes a combination of two parallel second planes 201 and second curved surfaces 202.

[0094] In addition to the above, the flow channel at the front end of the jet nozzle 100 and the flow channel at the front end of the compressed gas nozzle 200 can be combined arbitrarily. For example, the flow channel at the front end of the jet nozzle 100 is composed of two parallel first planes 101 and the flow channel at the front end of the compressed gas nozzle 200 is composed of two parallel second planes 201.

[0095] In this embodiment, the flow channel is set as two parallel surfaces to regulate the turbulent flow in the fluid into a laminar flow, so that the ejected fluid is in the form of a thin film. The length of this part can be set according to the purpose of use (fluid properties and flow rate), specifically between 1mm and 10cm.

[0096] Example 3

[0097] The difference between this embodiment and the previous embodiment is that the flow channel 15 at the front end of the jet nozzle 100 has a uniform cross-section structure. Figure 5 The cross-section shown is a rectangular, uniform cross-section structure (this uniform cross-section structure is parallel to the first plane 101). Figure 8 The cross-section shown is a rectangular, uniform cross-section structure (this uniform cross-section structure is the parallel first curved surface 102). Figure 11 The structure shown has a circular cross-section and is of uniform cross-section.

[0098] The "equal cross-section structure" mentioned in this embodiment refers to a structure with an equal cross-section. This cross-section can be rectangular, circular, elliptical, triangular, trapezoidal, or irregular in shape, as long as the flow channel at the front end of the inlet has an equal cross-section guide section.

[0099] like Figure 7 , Figure 8 As shown, the flow channel at the front end of the jet nozzle 100 is called "jet nozzle front end flow channel 15", and the flow channel at the front end of the compressed gas nozzle 200 is called "compressed gas nozzle front end flow channel 16".

[0100] "Jet nozzle front end flow channel 15" refers to the flow channel located at the front end of nozzle 14 within the jet nozzle 100 ("nozzle" 14 refers to the end of the fluid outlet of the jet nozzle 100). This part of the flow channel is designed with two parallel surfaces to regulate the turbulent flow within the fluid into laminar flow, thereby making the ejected fluid appear as a thin film. The length of this part can be set according to the intended use (fluid properties and flow velocity). Generally, the length J of the jet nozzle front end flow channel 15 needs to be greater than or equal to the width H of the jet nozzle 100. The "nozzle front end flow channel" has three structures: one is a straight pipe structure where the cross-section is constant at different positions. Figure 5 , Figure 6 As shown; the second type is that the flow channel has different cross-sections at different locations, such as... Figure 20 , Figure 24 , Figure 28 , Figure 31 The first type is the "flared" structure; the second type is the constricted structure, which is the opposite of the second type (as shown in the image). Figure 14 The constricted structure 400). The aforementioned "two mutually parallel surfaces" can be parallel planes (such as...). Figure 5 The first plane 101 shown can also be a parallel curved surface (such as...). Figure 6 The first curved surface 102 shown can also be a structure that combines both plane and curved surface.

[0101] Similarly, the compressed gas nozzle 200's "nozzle front flow channel" also has three structures. One is that the flow channel has a uniform cross-section at different positions, i.e., a "straight pipe" structure, such as... Figure 7 , Figure 8 As shown; the second type is that the flow channel has different cross-sections at different locations, such as... Figure 21 The first type is the "flared" structure; the third type is the constricted structure, which is the opposite of the second type (not shown in the figure).

[0102] Additionally, it should be noted that the flow channel structure of the "non-nozzle front end" of the jet nozzle 100 and the compressed gas nozzle 200 can be the same as that of the "nozzle front end" flow channel, such as... Figure 6 , Figure 8 The figures shown are both parallel surfaces with the same cross-section. They can also be different, such as... Figure 5 , Figure 7 , Figure 9 The flow channel 17 shown as "not at the end outlet" has a narrowing structure (Note: The "non-nozzle front flow channel" mentioned in this embodiment refers to the same flow channel as the "nozzle front flow channel", but they are different names due to their different positions. The "non-nozzle front flow channel" is located far away from the nozzle 14 relative to the "nozzle front flow channel").

[0103] Example 4

[0104] In this embodiment, the jet nozzle 100 sprays a flat high-pressure liquid jet, the compressed gas nozzle 200 sprays a high-pressure gas jet, and the high-pressure gas jet is provided on one or both sides of the high-pressure liquid jet.

[0105] like Figure 9 As shown, a high-pressure gas jet is provided on one side of the high-pressure liquid jet, that is, the compressed gas nozzle 200 is arranged below the jet nozzle 100. The compressed gas nozzle 200 sprays a high-pressure gas jet to guide the high-pressure liquid jet sprayed by the jet nozzle 100. Under the guidance of the high-pressure gas jet, the jet range of the high-pressure liquid jet is longer, thus realizing that the high-pressure gas jet "escorts" the high-pressure liquid jet.

[0106] like Figure 10 As shown, high-pressure gas jets are provided on both sides of the high-pressure liquid jet, that is, compressed gas nozzles 200 are arranged above and below the jet nozzle 100. The coverage area of ​​the high-pressure gas jet covers the high-pressure liquid jet. In the forward (ejection) direction of the high-pressure liquid jet, the high-pressure gas jet reduces the friction between the high-pressure liquid jet and the surrounding air or forms an air curtain around the high-pressure liquid jet, reducing resistance, thereby allowing the liquid to be shot further, thus realizing that the high-pressure gas jet "escorts" the high-pressure liquid jet.

[0107] Example 5

[0108] In this embodiment, the jet nozzle 100 sprays a cylindrical high-pressure liquid jet, the compressed gas nozzle 200 sprays a high-pressure gas jet, and the outer circumference of the high-pressure liquid jet is provided with a coaxial high-pressure gas jet in all or part.

[0109] like Figure 11 As shown, the outer circumference of the high-pressure liquid jet is entirely equipped with coaxial high-pressure gas jets. The high-pressure gas jets form a "gas film" on the outer surface of the high-pressure liquid jet. Under the action of the gas film, the liquid overcomes air resistance and the friction between the high-pressure liquid jet and the air, guiding the liquid forward and increasing the range.

[0110] like Figure 12 As shown, a coaxial high-pressure gas jet is installed on the outer circumference of the high-pressure liquid jet. The high-pressure gas jet forms a "gas film" on the outer surface of the high-pressure liquid jet. Under the action of the gas film, the liquid overcomes air resistance and the friction between the high-pressure liquid jet and the air, guiding the liquid forward and increasing the range.

[0111] Example 6

[0112] In this embodiment, the distance between the two parallel first planes 101 is less than 2 mm and / or the distance between the two parallel second planes 201 is less than 2 mm. The distance between the two parallel first curved surfaces 102 is less than 2 mm and / or the distance between the two parallel second curved surfaces 202 is less than 2 mm. This results in the fluid ejected by the jet nozzle 100 and / or the gas ejected by the compressed gas nozzle 200 being in the form of a thin film.

[0113] Example 7

[0114] like Figures 13-16 As shown, this embodiment differs from the previous embodiment in that the flow channel at the front end of the jet nozzle 100 is a constriction structure 400, and the flow channel at the front end of the compressed gas nozzle 200 is a constriction structure 400. The constriction structure 400 allows the flow area of ​​the fluid channel to decrease rapidly with the constriction, while the flow velocity increases rapidly, thereby causing the fluid to be ejected at high speed.

[0115] The compressed gas nozzle 200 can be one or two; when there is one compressed gas nozzle 200, it is set on one side of the jet nozzle 100 and the front flow channel of the compressed gas nozzle 200 is parallel to the front flow channel of the jet nozzle 1; when there are two compressed gas nozzles 200, they are distributed on both sides of the jet nozzle 100, and the front flow channels of both compressed gas nozzles 200 are parallel to the front flow channels of the jet nozzle 100, so that the gas ejected by the compressed gas nozzle 200 is parallel to the fluid ejected by the jet nozzle 100 and forms a "protection".

[0116] Example 8

[0117] like Figures 14-16 As shown, the nozzle of the jet nozzle 100 and / or the compressed gas nozzle 200 is a V-shaped flared structure 500 with an elliptical outlet.

[0118] The nozzles of the jet nozzle 100 and / or the compressed gas nozzle 200 are V-shaped flared structures 500 with elliptical outlets. Specifically, as shown... Figures 33-35 As shown, the jet nozzle 100 and / or compressed gas nozzle 200 have a constriction structure 400 before the nozzle opening, which causes the flow area of ​​the fluid channel and / or compressed gas channel to decrease rapidly with the constriction, while the flow velocity increases rapidly. The nozzle opening is set as a V-shaped flare structure 500 with an elliptical outlet. This nozzle position is the elliptical outlet edge with the smallest flow area. The major axis of the elliptical outlet of the jet nozzle 100 is parallel to the major axis of the outlet of the elliptical outlet of the compressed gas nozzle 200. In this way, after the fluid / gas in the jet nozzle 100 and / or compressed gas nozzle 200 is ejected from the outlet, a fan-shaped water film / gas film is formed along the length direction of the V-shaped flare groove, so that the thin film of high-pressure water and high-pressure gas can achieve an effect similar to "cutting" and "escorting", and can save water and gas efficiently.

[0119] Taking cleaning as an example, in this embodiment, a compressed gas nozzle 200 is provided on one side of the jet nozzle 100. The gas sprayed by the compressed gas nozzle 200 is parallel to the cleaning surface sprayed by the jet nozzle 100. During cleaning, the jet nozzle gradually moves forward to spray high-speed water to rinse the working surface. The parallel high-pressure air below the jet nozzle 100 can then blow away the residual water stains, so that the working surface can achieve the effect of rapid cleaning and drying.

[0120] Taking cleaning as an example again, when there are two compressed gas nozzles 200 and they are respectively set on both sides of the jet nozzle 1, such as Figures 22-25 As shown, during cleaning, the thin-film high-speed water jet is enveloped by a synchronous, parallel high-speed airflow. This significantly reduces the resistance of the still airflow, which would otherwise cause a substantial decrease in speed and atomization loss. This ensures the high-speed water jet is sprayed onto the work surface at the highest possible speed, improving the effectiveness of high-pressure water cleaning. The specific mechanism is analyzed below:

[0121] like Figure 33 As shown, the velocity field of high-speed water flowing in still ambient air gradually decreases from the center of the water flow to the edge region in contact with the air. This is because when high-speed water flows at high speed in still ambient air, the boundary layer where it meets the air is affected by the viscosity of the air, causing the velocity at the water flow edge to decrease rapidly, especially at the boundary layer where the water flow forms a high-speed flow. Figure 33 The velocity field is shown. The boundary layer water flow near the air interface exhibits the following characteristics: the velocity direction of the water flow is turbulent, forming numerous vortices; therefore, this region is called the turbulent layer (region). The forward velocity in the turbulent layer is severely attenuated, even forming reverse velocity vortices. Within the turbulent layer, near the middle of the water flow, the water velocity direction remains consistent, flowing forward, and the rate (slope) of velocity attenuation from the inside out is much smaller than that in the turbulent layer.

[0122] Due to the velocity field characteristics of the high-speed water flow moving in still ambient air, the turbulent layer of its outer boundary layer is continuously slowed down, stripped away, and atomized as the high-speed water flow moves forward. Consequently, the thickness of the central laminar region of the high-speed water flow gradually decreases, as shown in the following details: Figure 34 As shown, as the distance L (range) the water flows forward increases, the rate at which the average velocity of the water decreases accelerates, i.e.

[0123] Furthermore, the rate at which the velocity of a high-speed water flow decreases with increasing distance traveled is closely related to the diameter or thickness of the water flow. The thicker the water flow, the slower the velocity decreases, and the longer the relative range; conversely, the thinner the water flow, the faster the velocity decreases, and the shorter the relative range. The specific reasons are as follows... Figure 33As shown, the thicker the water flow, the smaller the proportion of the turbulent zone at the water-air interface to the total water flow thickness; conversely, the thinner the water flow, the larger the proportion of the turbulent zone to the total water flow thickness. Therefore, the rate of decrease in water flow velocity is directly proportional to the proportion of the turbulent zone to the total water flow thickness. The specific reasons are as follows... Figure 35 As shown, the thickness of the high-speed water flow varies, and its velocity decay rate when moving in the air varies, resulting in different ranges. Curves ①, ②, and ③ represent the ranges L1 > L2 > L3 when the water flow velocity δ1 > δ2 > δ3 is the same when the water flow is ejected from a high-pressure nozzle with the same initial velocity V0.

[0124] Based on the relationship between the velocity decay of the high-speed water flow and its travel distance, and the relationship between the water flow thickness and its velocity decay rate and range, it is evident that using the aforementioned slit nozzle can spray a thin film of high-speed water flow. The aim is to create a more uniform and wider thin film of high-speed water flow into the working surface, achieving both high efficiency and water conservation. However, to save water, using a thinner thin film of high-speed water flow suffers from the aforementioned drawbacks: the velocity decays too quickly in ambient air, resulting in a shorter range, which affects the cleaning effect. Therefore, to address this drawback, utilizing high-speed air to encase the high-speed thin film of water can effectively solve this problem.

[0125] Specific mechanism analysis as follows Figure 36 As shown, compressed gas nozzles are installed on both sides of the jet nozzle, forming a high-speed channel between a thin film of high-speed water and high-speed air sandwiched within it. This allows the high-speed water and the high-speed air sandwiched within it to flow forward synchronously. The relatively still air in the environment only contacts the high-speed air sandwiched within it, not directly with the high-speed water. This creates a rapid attenuation zone from the inside out in the high-speed airflow area, while having minimal impact on the velocity of the high-speed thin film water flow in the central area. Therefore, it ensures that the high-speed water is sprayed onto the working surface at a high velocity, increasing the momentum and kinetic energy of the high-speed thin film water impacting the working surface, thus facilitating the removal of dirt and achieving both water conservation and a good cleaning effect. In other words, by utilizing the high-speed air sandwiching a high-speed water film, a thinner water film can achieve a good cutting and washing effect, resulting in greater water conservation and efficiency.

[0126] Example 9

[0127] like Figures 17-21 As shown, in this embodiment, the jet nozzle 100 and the compressed gas nozzle 200 are an integral structure, collectively referred to as the gas-liquid nozzle 50.

[0128] Example 10

[0129] like Figures 22-25As shown, the gas-liquid nozzle 50 is mounted on the mounting base 800, and the gas-liquid nozzle and the mounting base 800 have an adjustable angle structure; the mounting base 800 is respectively provided with a fluid channel 600 and a compressed gas channel 700, the jet nozzle 100 is in communication with the fluid channel 600 on the mounting base 800, and the compressed gas nozzle 200 is in communication with the compressed gas channel 700 on the mounting base 800.

[0130] The structure described in this embodiment allows the nozzle to be adjusted in three-dimensional space relative to the mounting base 800, and the jet nozzle 100 and the compressed gas nozzle 200 remain unobstructed with their corresponding fluid channels 600 and compressed gas channels 700 within any adjustable angle range.

[0131] In this embodiment, the jet nozzle 100 and the compressed gas nozzle 200 are combined into an integrated structure to form a gas-liquid nozzle. It is applicable when the jet nozzle 100 is only used to spray liquid, such as spraying clean water for cleaning. In this case, the high-speed thin film water sprayed by the compressed gas nozzle plays a "protective" role, preventing the jet water speed from decreasing significantly and affecting the cleaning effect. The liquid can also be an adhesive, such as paint. When using the device described in this embodiment for paint spraying, the "protective" high-speed gas can reduce the paint vaporization speed, avoid environmental pollution, and protect the health of workers from harm.

[0132] Example 11

[0133] like Figures 26-28 As shown, the angle-adjustable structure specifically includes a spherical rear end of the gas-liquid nozzle 50 and a spherical cavity in the mounting base 800 that is adapted to the spherical shape of the gas-liquid nozzle 50.

[0134] The mounting base 800 is provided with a spherical cavity that is adapted (transition fit) to the spherical body of the gas-liquid nozzle. The gas-liquid nozzle adopts a three-dimensional angle-adjustable spherical mounting structure, which can flexibly adjust the nozzle angle according to different tilt angles of the working surface, the degree of dirt on the working surface, etc., to ensure that the high-speed water flow is injected into the working surface at a suitable angle.

[0135] Example 12

[0136] like Figures 29-32 As shown, the angle-adjustable structure specifically includes a cylindrical rear end of the gas-liquid nozzle 50 and a cylindrical cavity in the mounting base 800 that is adapted to the cylindrical shape of the gas-liquid nozzle 50.

[0137] The mounting base 800 is provided with a cylindrical cavity that is adapted to the cylinder of the gas-liquid nozzle, so that the gas-liquid nozzle can be adjusted in two-dimensional space relative to the mounting base 800. That is, the gas-liquid nozzle can be rotated around the center of the cylinder in the xy plane to adjust the angle to adapt to the tilt angle of different working surfaces. When used for cleaning, the angle can also be adjusted according to the characteristics of different dirt to achieve better cleaning effect.

[0138] Example 13

[0139] like Figures 22-24 As shown, in this embodiment, the outlets of the fluid channel 600 and / or compressed gas channel 700 on the mounting base 800 are flared recessed structures 900 and 901. Specifically, within the adjustable angle range of the cylindrical cavity inside the mounting base 800, the rear end of the jet nozzle 100 is always connected to the fluid channel 600 within the mounting base via the flared recessed structure 900, and the rear end of the compressed gas nozzle 200 is always connected to the flared recessed structure 901 within the mounting base 800, further connecting to the compressed gas channel 7. That is, the jet nozzle 100, the flared recessed structure 900, and the fluid channel 600 are always connected, and the compressed gas nozzle 200, the flared recessed structure 901, and the compressed gas channel 700 are always connected.

[0140] Example 14

[0141] like Figures 26-28 As shown, the difference between this embodiment and embodiment 13 is that the rear end of the jet nozzle 100 and / or the rear end of the compressed gas nozzle 200 is a flared groove structure 900.

[0142] Example 15

[0143] This embodiment describes a gas-liquid integrated jet jetter applied to dredging machinery for dredging operations. Dredging machinery is specialized equipment used to remove sediments such as silt, sand, and garbage from aquatic or terrestrial environments. Its core objective is to efficiently remove silt and restore the flow of water or pipelines through physical, mechanical, or hydraulic methods. In this embodiment, the gas-liquid integrated jet jetter sprays a high-speed water flow to flush and liquefy the silt, which is then discharged through a suction device. This method reduces sludge viscosity, decreases pipeline transport resistance, and significantly improves energy efficiency.

[0144] Example 16

[0145] This embodiment presents a gas-liquid integrated jet cleaner applied to the cleaning of giant structures such as oil tanker hulls. Traditional methods for cleaning these structures involve highly adhesive dirt layers that are difficult to remove. Conventional high-pressure water jets require repeated rinsing, and conventional cleaning equipment has a short range, necessitating auxiliary equipment (such as elevators) to achieve the cleaning work, resulting in high cleaning costs. However, jet technology can increase the range of the cleaning fluid, significantly improving cleaning efficiency compared to traditional methods. The gas-liquid integrated jet cleaner solves a key problem in the cleaning of giant industrial structures and can be widely applied to fields such as oil tanker hulls and shipping.

[0146] Example 17

[0147] This embodiment presents a gas-liquid integrated jet sprayer, applied to improve the range of agricultural irrigation. In the fields of agricultural irrigation and plant protection, traditional agricultural spraying equipment generally suffers from uneven droplet size and limited range, leading to water waste and insufficient pesticide coverage. This embodiment, through the escorting effect of gas on liquid, can further expand the coverage area, suitable for long-distance uniform spraying of field crops.

[0148] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A gas-liquid integrated jet ejector, characterized in that: include: The jet nozzle (100) and the compressed gas nozzle (200) are sandwich structures.

2. The gas-liquid integrated jet ejector according to claim 1, characterized in that: The jet nozzle (100) has two parallel first planes (101) and / or first curved surfaces (102) at the nozzle front end, and the compressed gas nozzle (200) has two parallel second planes (201) and / or second curved surfaces (202) at the nozzle front end.

3. The gas-liquid integrated jet ejector according to claim 2, characterized in that: The length J of the flow channel at the front end of the jet nozzle (100) is greater than or equal to the width H of the jet nozzle (100).

4. The gas-liquid integrated jet ejector according to claim 1, characterized in that: The jet nozzle (100) has a constant cross-section flow channel at the nozzle front end.

5. A gas-liquid integrated jet ejector according to claim 1, characterized in that: The jet nozzle (100) sprays a flat high-pressure liquid jet, the compressed gas nozzle (200) sprays a high-pressure gas jet, and the high-pressure gas jet is provided on one or both sides of the high-pressure liquid jet.

6. A gas-liquid integrated jet ejector according to claim 1, characterized in that: The jet nozzle (100) sprays a cylindrical high-pressure liquid jet, and the compressed gas nozzle (200) sprays a high-pressure gas jet. The outer circumference of the high-pressure liquid jet is provided with a coaxial high-pressure gas jet in whole or in part.

7. A gas-liquid integrated jet ejector according to claim 2, characterized in that: The distance between the two mutually parallel first planes (101) is less than 2 mm and / or the distance between the two mutually parallel second planes (201) is less than 2 mm.

8. A gas-liquid integrated jet ejector according to claim 2, characterized in that: The distance between the two parallel first surfaces (102) is less than 2 mm and / or the distance between the two parallel second surfaces (202) is less than 2 mm.

9. A gas-liquid integrated jet ejector according to claim 1, characterized in that: The jet nozzle (100) has a constricted flow channel (400) at the nozzle front end, and the compressed gas nozzle (200) has a constricted flow channel (400) at the nozzle front end.

10. A gas-liquid integrated jet ejector according to claim 9, characterized in that: The compressed gas nozzle (200) is one or two, and is located on one side or distributed on both sides of the jet nozzle (100).

11. A gas-liquid integrated jet ejector according to claim 9, characterized in that: The nozzle of the jet nozzle (100) and / or the compressed gas nozzle (200) is a V-shaped flared structure (500) with an elliptical outlet.

12. A gas-liquid integrated jet ejector according to claim 1, characterized in that: The jet nozzle (100) and the compressed gas nozzle (200) are an integral structure and are collectively referred to as the gas-liquid nozzle (50).

13. A gas-liquid integrated jet ejector according to claim 12, characterized in that: The gas-liquid nozzle (50) is mounted on the mounting base (800), and the gas-liquid nozzle and the mounting base (800) have an adjustable angle structure. The mounting base (800) is provided with a fluid channel (600) and a compressed gas channel (700). The jet nozzle (100) is connected to the fluid channel (600) on the mounting base (800), and the compressed gas nozzle (200) is connected to the compressed gas channel (700) on the mounting base (800).

14. A gas-liquid integrated jet ejector according to claim 13, characterized in that: The angle-adjustable structure is specifically as follows: the rear end of the gas-liquid nozzle (50) is a spherical body, and the mounting base (800) is provided with a spherical cavity that is adapted to the spherical body of the gas-liquid nozzle (50).

15. A gas-liquid integrated jet ejector according to claim 13, characterized in that: The angle-adjustable structure is specifically as follows: the rear end of the gas-liquid nozzle (50) is a cylinder, and the mounting base (800) is provided with a cylindrical cavity that is adapted to the cylinder of the gas-liquid nozzle (50).

16. A gas-liquid integrated jet ejector according to claim 13, characterized in that: The outlet of the fluid channel (600) and / or compressed gas channel (700) on the mounting base (800) is a flared trough structure.

17. A gas-liquid integrated jet ejector according to claim 13, characterized in that: The rear end of the jet nozzle (100) and / or the rear end of the compressed gas nozzle (200) is a flared groove structure.

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