Three-flow spray gun

Abstract

The utility model discloses a three-flow type spray gun, and relates to the technical field of food and medicine processing, in particular to a three-flow type spray gun used for spray drying of food and medicine intermediates or raw material medicines. The device comprises an air inlet, a liquid inlet, a positioning pin, a distributor, a connecting flange, an outer pipe, a middle pipe, a valve, an air cap and a nozzle, the air inlet and the liquid inlet are fixedly arranged at respective through opening ends at the upper end of the distributor; the distributor is fixedly connected with a connecting flange at the top end of the outer pipe through positioning pins; the middle pipe is inserted into the outer pipe, and the top end of the middle pipe is connected with a liquid inlet at the bottom of the distributor; the valve is arranged at the bottom of the outer pipe and is connected with the middle pipe; a nozzle is assembled at the bottom of the valve, and an air cap is assembled between the nozzle and the valve. According to the technical scheme, the problems that in the prior art, a two-fluid spray gun is large in flow and common in efficiency, the phenomenon of uneven atomization can be generated when the viscosity of feed liquid is large, the adjustable range of atomized particles is narrow, and the two-fluid spray gun is not suitable for fine distinguishing of particles are solved.

Description

Technical Field

[0001] The utility model discloses a three-flow spray gun, which relates to the technical field of food and medicine processing, and in particular to a three-flow spray gun used for spray drying of food and medicine intermediates or raw materials. Background Art

[0002] In the production of food, pharmaceutical intermediates or raw materials, some powder formation needs to be achieved by spray drying. The important component in spray drying is the spray gun, which first forms atomization, then vaporizes instantly when in contact with hot air to form powder, which is then collected.

[0003] The conventional spray guns on the market are two-fluid spray guns, which have a large flow rate and average efficiency. When the viscosity of the liquid is high, uneven atomization will occur, and the adjustable range of atomized particles is narrow, which is not suitable for fine particle differentiation.

[0004] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of three-flow spray gun to overcome the problems existing in the prior art. Summary of the invention

[0005] According to the above-mentioned technical problems, the two-fluid spray gun proposed in the prior art has a large flow rate, average efficiency, uneven atomization when the viscosity of the liquid is high, and a narrow adjustable range of atomized particles, which is not suitable for fine particle differentiation, etc., a three-flow spray gun is provided. The utility model mainly uses a three-flow structure to spray the raw material, so as to achieve uniform atomization and a large adjustable range of atomized particles).

[0006] The technical means adopted by the utility model are as follows:

[0007] A three-flow spray gun comprises: an air inlet, a liquid inlet, a positioning pin, a distributor, a connecting flange, an outer tube, a middle tube, a valve, a hood, and a nozzle;

[0008] Further, the air inlet and the liquid inlet are fixedly mounted on the respective opening ends of the upper end of the distributor;

[0009] Furthermore, the distributor is fixedly connected to the connecting flange at the top end of the outer tube via a positioning pin;

[0010] Furthermore, the middle tube is inserted into the inner part of the outer tube, and the top end is connected to the liquid inlet port at the bottom of the distributor;

[0011] Further, the valve is installed at the bottom of the outer tube and connected to the middle tube;

[0012] Furthermore, a nozzle is installed at the bottom of the valve, and a wind cap is installed between the nozzle and the valve.

[0013] Further, the nozzle includes: a connecting nozzle, an air outlet, an assembly plug-in, a connecting liquid pipe and a nozzle port;

[0014] Further, the nozzle body is a funnel-shaped structure with a top plate, the center of which is provided with an assembly plug-in, and the bottom is provided with a nozzle opening through a thread;

[0015] Furthermore, an air port for replenishing air in the nozzle is provided on the upper side wall of the nozzle body;

[0016] Furthermore, the upper outer wall of the nozzle body is processed with an external thread for connecting with the valve;

[0017] Furthermore, the outer wall of the top of the assembly plug-in is processed with an external thread for assembling a connection nozzle for connecting with the middle pipe;

[0018] Furthermore, a connecting liquid pipe is inserted in the center of the assembly plug-in.

[0019] Furthermore, the nozzle opening is a double-layer opening, the inner opening of which is communicated with the connecting liquid pipe and is used to spray the gas-liquid mixture, and the outer opening of the inner opening is processed outside to spray the gas;

[0020] Furthermore, the gas ejected from the outer port is air or compressed gas.

[0021] Furthermore, the inner wall of the inner port is designed as an arc surface with large diameters at both ends and a small diameter in the center, which increases the injection pressure and the injection range at the same time.

[0022] Furthermore, the nozzle opening is a replaceable structure, and the ratio of the inner opening diameter to the outer opening diameter can be adjusted according to different needs to obtain the best spraying effect.

[0023] Furthermore, the tuyere blows gas into the nozzle body in a horizontal direction to avoid the gas directly facing the outer port, causing unstable airflow and affecting the spraying effect of the liquid feed.

[0024] The working process of the utility model is:

[0025] First, connect the air inlet and liquid inlet to the corresponding air source pipe and liquid pipe, adjust the air and liquid ratio and pressure as required, the gas and liquid are preliminarily mixed in the valve body and then enter the nozzle, and then adjust the air inlet volume and pressure of the air port according to the required uniformity of atomization, so as to achieve the requirements of uniform atomization and the range of atomization particle size can be adjusted.

[0026] Compared with the prior art, the utility model has the following advantages:

[0027] 1. The three-flow spray gun provided by the utility model adopts a three-flow structure. When the gas and liquid are atomized, the atomized particles are relatively uniform;

[0028] 2. The three-flow spray gun provided by the utility model has a large adjustable range of atomized particle size and is suitable for liquids with different viscosities;

[0029] 3. The three-flow spray gun provided by the utility model has a nozzle with an inner diameter designed in an arc surface, which can increase the spray range and improve uniformity.

[0030] In summary, the technical solution of the utility model solves the problems of the two-fluid spray gun in the prior art, such as large flow rate, average efficiency, uneven atomization when the viscosity of the liquid is high, narrow adjustable range of atomized particles, and unsuitable for fine particle differentiation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 It is a schematic diagram of the structure of the utility model;

[0033] Figure 2 This is a schematic diagram of the nozzle structure of the utility model.

[0034] In the figure: 1, air inlet 2, liquid inlet 3, positioning pin 4, distributor 5, connecting flange 6, outer tube 7, middle tube 8, valve 9, wind cap 10, nozzle 101, connecting nozzle 102, air outlet 103, assembly plug-in 104, connecting liquid pipe 105, nozzle body 106, nozzle port 1061, inner port 1062, outer port. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0042] like Figure 1 As shown, the utility model provides a three-flow spray gun including: an air inlet 1, a liquid inlet 2, a positioning pin 3, a distributor 4, a connecting flange 5, an outer tube 6, a middle tube 7, a valve 8, a wind cap 9, and a nozzle 10; the air inlet 1 and the liquid inlet 2 are fixedly mounted on the respective through-port ends of the upper end of the distributor 4; the distributor 4 is fixedly connected to the connecting flange 5 at the top end of the outer tube 6 through the positioning pin 3; the middle tube 7 is inserted into the interior of the outer tube 6, and the top end is connected to the liquid inlet through-port at the bottom of the distributor 4; the valve 8 is mounted on the bottom of the outer tube 6 and connected to the middle tube 7; the nozzle 10 is installed at the bottom of the valve 8, and the wind cap 9 is installed between the nozzle 10 and the valve 8.

[0043] like Figure 2 As shown, the nozzle 10 includes: a connecting nozzle 101, an air outlet 102, an assembly plug-in 103, a connecting liquid pipe 104 and a nozzle opening 106; the nozzle body 105 is a funnel-shaped structure with a top plate, the center of which is equipped with an assembly plug-in 103, and the bottom is equipped with a nozzle opening 106 through a thread; the upper side wall of the nozzle body 105 is provided with an air outlet 102 for replenishing air in the nozzle 10; the upper outer wall of the nozzle body 105 is processed with an external thread for connecting to the valve 8; the outer wall of the top end of the assembly plug-in 103 is processed with an external thread for assembling the connecting nozzle 101 for connecting to the middle pipe 7; the center of the assembly plug-in 103 is inserted with a connecting liquid pipe 104.

[0044] like Figure 2As shown, the nozzle opening 106 is a double-layer opening, wherein the inner opening 1061 is communicated with the connecting liquid pipe 104 and is used to spray the gas-liquid mixture, and the outer opening 1062 is processed outside the inner opening 1061 and is used to spray gas; the gas sprayed by the outer opening 1062 is air or compressed gas.

[0045] like Figure 2 As shown, the inner wall of the inner port 1061 is designed as an arc surface with large diameters at both ends and a small diameter in the center, which increases the injection pressure and the injection range at the same time.

[0046] like Figure 2 As shown, the nozzle opening 106 is a replaceable structure, and the ratio of the diameter of the inner opening 1061 to the diameter of the outer opening 1062 can be adjusted according to different needs to obtain the best spraying effect.

[0047] like Figure 2 As shown, the air outlet 102 blows gas into the nozzle body 105 in a horizontal direction to avoid the gas directly hitting the outer port 1062, causing unstable airflow and affecting the injection effect of the liquid feed.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A three-flow spray gun, characterized in that: The three-flow spray gun comprises: an air inlet (1), a liquid inlet (2), a positioning pin (3), a distributor (4), a connecting flange (5), an outer tube (6), a middle tube (7), a valve (8), a wind cap (9), and a nozzle (10); The air inlet (1) and the liquid inlet (2) are fixedly mounted on the respective opening ends of the upper end of the distributor (4); The distributor (4) is fixedly connected to the connecting flange (5) at the top end of the outer tube (6) via a positioning pin (3); The middle tube (7) is inserted into the interior of the outer tube (6), and the top end is connected to the liquid inlet port at the bottom of the distributor (4); The valve (8) is installed at the bottom of the outer tube (6) and connected to the middle tube (7); The bottom of the valve (8) is equipped with a nozzle (10), and a wind cap (9) is installed between the nozzle (10) and the valve (8); The nozzle (10) comprises: a connecting nozzle (101), an air outlet (102), an assembly plug-in (103), a connecting liquid pipe (104), a nozzle body (105) and a nozzle opening (106); The nozzle body (105) is a funnel-shaped structure with a top plate, a mounting plug-in (103) is installed at the center of the top plate, and a nozzle opening (106) is installed at the bottom through a thread; An air port (102) for replenishing air in the nozzle (10) is provided on the upper side wall of the nozzle body (105); The upper outer wall of the nozzle body (105) is processed with an external thread for connecting to the valve (8); The outer wall of the top end of the assembly plug-in (103) is processed with an external thread for assembling a connection nozzle (101) for connecting with the middle tube (7); A connecting liquid pipe (104) is inserted into the center of the assembly plug-in unit (103); The nozzle opening (106) is a double-layer opening, wherein the inner opening (1061) is in communication with the connecting liquid pipe (104) and is used for spraying a gas-liquid mixture, and the outer opening (1062) is processed outside the inner opening (1061) and is used for spraying gas; The gas ejected from the outer port (1062) is air or compressed gas.

2. The three-flow spray gun according to claim 1, characterized in that: The inner wall of the inner port (1061) is designed as an arc-shaped surface with large diameters at both ends and a small diameter in the center, which increases the injection pressure and the injection range at the same time.

3. The three-flow spray gun according to claim 1, characterized in that: The nozzle opening (106) is a replaceable structure, and the ratio of the diameter of the inner opening (1061) to the diameter of the outer opening (1062) can be adjusted according to different needs to obtain the best spraying effect.

4. The three-flow spray gun according to claim 1, characterized in that: The air outlet (102) blows gas into the nozzle body (105) in a horizontal direction to prevent the gas from directly hitting the outer outlet (1062) and causing unstable airflow, thereby affecting the spraying effect of the liquid.

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