Large-flow atomizing spray gun

Abstract

The utility model discloses a large-flow atomizing spray gun which comprises an inner spray pipe, an outer spray pipe, a connecting tee joint, a nozzle, an elbow and a multi-angle spray head, one end of the inner spray pipe extends into the outer spray pipe, the nozzle is arranged at the end, extending into the outer spray pipe, of the inner spray pipe, and the connecting tee joint is arranged on the inner spray pipe in a sleeved mode. One end of the connecting tee joint is sealed and fixed with the inner spray pipe through an inner spray pipe locking piece, the other end of the connecting tee joint is fixedly connected and communicated with one end of the outer spray pipe through an outer spray pipe locking piece, and the other end of the outer spray pipe is connected with the multi-angle spray head through an elbow; the top of the atomization blocking piece is fixed to the end, away from the connecting tee joint, of the outer spraying pipe, and the edge of the atomization blocking piece and the inner surface of the outer spraying pipe form an arc-shaped channel except the position where the atomization blocking piece is fixedly connected with the outer spraying pipe. Compared with the prior art, the atomization device has the advantages that the atomization baffle is arranged, the solution is atomized once when the solution flows and impacts the atomization baffle, and compared with the prior art, one-time atomization is added, so that the atomization effect of the solution is improved.

Description

Technical Field

[0001] This utility model relates to a high-flow-rate atomizing spray gun, belonging to the field of spray guns. Background Technology

[0002] Air pollution control has become a trend in environmental protection. In flue gas treatment, high-flow-rate atomizing spray guns are needed for desulfurization. However, these guns suffer from drawbacks such as poor atomization and high compressed air pressure, resulting in ineffective desulfurization and cooling, failing to achieve ideal removal results. High-flow-rate atomizing spray guns are also required for cooling during bypass ventilation in cement plants. Existing high-flow-rate atomizing spray guns consist of an inner spray pipe, an outer spray pipe, nozzles, and multi-angle nozzles. The inner spray pipe sprays the solution, and a gas channel is formed between the outer and inner spray pipes for... When compressed air is introduced, the solution in this type of spray gun is atomized once when mixed with compressed air, and then atomized again when sprayed out by the multi-angle nozzle. The atomization effect is relatively average. Furthermore, the multi-angle nozzle has spray holes evenly distributed along the circumference on its arc-shaped end face. Because the multi-angle nozzle is tilted downwards, the spray direction of the lower spray holes is towards the inner wall of the separator. The solution sprayed onto the inner wall of the separator causes a wall-hanging phenomenon. Dust and particles inside the separator are prone to forming a skin or clumps when they come into contact with the solution hanging on the wall, resulting in the need for frequent cleaning of the inner wall of the separator, which is not conducive to the normal use of the separator. Summary of the Invention

[0003] The purpose of this invention is to provide a high-flow-rate atomizing spray gun to solve the technical defects of poor atomization effect in existing atomizing nozzles.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: a high-flow atomizing spray gun, including an inner spray pipe, an outer spray pipe, a connecting tee, a nozzle, an elbow, and a multi-angle nozzle. One end of the inner spray pipe extends into the outer spray pipe. The nozzle is set on the end of the inner spray pipe that extends into the outer spray pipe. The connecting tee is sleeved on the inner spray pipe, and one end of the tee is sealed and fixed to the inner spray pipe by an inner spray pipe locking member sleeved on the inner spray pipe. The other end of the connecting tee is fixedly connected to and communicates with one end of the outer spray pipe by the outer spray pipe locking member. The other end of the outer spray pipe is connected by an elbow. The device includes a multi-angle nozzle, with the inner nozzle located outside the outer nozzle for introducing the solution, a connecting tee for introducing compressed air into the outer nozzle, and an atomizing baffle. The top of the atomizing baffle is fixed to the outer nozzle at the end away from the connecting tee. Except for the fixed connection point with the outer nozzle, the edge of the atomizing baffle forms an arc-shaped channel with the inner surface of the outer nozzle. The liquid ejected from the nozzle impacts the atomizing baffle, forming the first atomization. The compressed air inside the outer nozzle mixes with the liquid, forming the second atomization. Finally, when ejected from the multi-angle nozzle, a third atomization occurs. This invention, by setting an atomizing baffle, atomizes the solution once upon impact with the flowing solution. Compared to existing technologies, this invention adds an extra atomization step, thereby improving the atomization effect. This invention achieves better atomization with the same compressed air pressure as existing technologies, while requiring less compressed air pressure to achieve the same atomization effect.

[0005] As a further improvement of this utility model, the atomizing baffle is circular, with its top protruding upward to form a fixing part, which is welded and fixed to the outer nozzle. In this utility model, the atomizing baffle is circular, so that the solution sprayed from the inner nozzle can collide with the atomizing baffle, further improving the atomization effect. By setting the fixing part on the atomizing baffle, this utility model makes it easier to fix and connect it to the outer nozzle.

[0006] As a further improvement of this invention, multiple nozzles are unevenly distributed on the arc-shaped end face of the multi-angle nozzle, with no nozzles at the lower part of the arc-shaped end face. The nozzles on the nozzle of this invention are asymmetrically distributed, and there are no nozzles at the lower part, thus effectively reducing the amount of solution sprayed onto the inner wall of the separator, reducing the formation of residues and dust or particle crusts on the inner wall, and reducing the frequency of cleaning the inner wall of the separator.

[0007] As a further improvement of this utility model, a first connector is installed on one end of the inner nozzle located outside the outer nozzle. This first connector includes a housing and a sight glass. The sight glass is detachably mounted on the housing. A solution inlet is provided on the side of the housing opposite to the sight glass. One side of the housing is fixedly connected to and communicates with the end of the inner nozzle. Liquid enters the housing through the solution inlet and then enters the inner nozzle through the housing. The sight glass is made of transparent material and is used to observe whether liquid has entered the solution inlet. This invention provides a first connector for convenient communication with a container holding the solution, and a sight glass for easy observation of whether solution has entered the first connector.

[0008] As a further improvement of this invention, an annular protrusion is formed inside the shell, protruding towards the sight glass along the direction of the solution inlet. This annular protrusion forms an annular space with the inner surface of the shell. A gap exists between the annular protrusion and the sight glass for communication with the annular space. This annular space communicates with the inner nozzle. Liquid enters the annular protrusion from the solution inlet, then enters the annular space through the gap at the top of the annular protrusion, and finally enters the inner nozzle through the annular space. By setting the annular protrusion, this invention allows the solution to first enter the annular protrusion and then enter the inner nozzle through the annular space. This makes it easier to observe the solution and allows for a more reasonable flow rate.

[0009] As a further improvement of this utility model, the end of the connecting tee furthest from the elbow is provided with an internal thread, and the inner nozzle locking component is provided with an external thread. The inner nozzle locking component and the connecting tee are threadedly engaged, and there is a sealing fit between the inner nozzle locking component and the inner nozzle. The connecting tee and the inner nozzle in this invention are firmly fixed and have good sealing performance.

[0010] As a further improvement of this utility model, the external nozzle locking component includes locking unit A and locking unit B. Locking unit A is sleeved on the inner nozzle and has external threads at both ends. The end of the connecting tee near the elbow has an internal thread. Locking unit A and the connecting tee are threaded together. One end of the external nozzle extends into locking unit B and is sealed to it. Locking unit B has an internal thread on the side near locking unit A. Locking unit B and locking unit A are threaded together. The external nozzle is connected to the connecting tee through locking unit A. The connecting tee and the external nozzle in this utility model have high fixing strength and ensure the connection between the connecting tee and the external nozzle.

[0011] As a further improvement of this utility model, the air inlet of the connecting tee is provided with a second connector. The second connector is threaded into the connecting tee and is connected to an air pipe in use for introducing compressed air into the tee. This utility model, by providing a second connector, facilitates the introduction of compressed air into the connecting tee during use.

[0012] As a further improvement of this utility model, the nozzle and the inner spray pipe are threaded together at one end, which extends into the outer spray pipe. The nozzle and the outer spray pipe in this utility model are easy to install.

[0013] As a further improvement of this utility model, the included angle between the end faces of the elbow is 55°.

[0014] In summary, the beneficial effects of this utility model are: this utility model has a good atomization effect on the solution, and the risk of the solution sticking to the inner wall of the separator and thus forming a skin or clumps is small. This utility model also has the advantage of simple structure. Attached Figure Description

[0015] Figure 1 This is a top view of the present invention.

[0016] Figure 2 yes Figure 1 AA sectional view.

[0017] Figure 3 yes Figure 1 BB cross-sectional view.

[0018] Figure 4 This is a schematic diagram of the present invention viewed from below.

[0019] Figure 5 yes Figure 4 A magnified view of a section at point I.

[0020] Figure 6 This is a schematic diagram of the utility model in use.

[0021] Figure 7 This is a diagram illustrating the current state of technology usage.

[0022] The components are as follows: 1. Inner nozzle; 2. Outer nozzle; 3. Connecting tee; 4. Nozzle; 5. Elbow; 6. Multi-angle nozzle; 7. Inner nozzle locking component; 8. Outer nozzle locking component; 9. Atomizing baffle; 10. Arc-shaped channel; 11. Arc-shaped end face; 12. Spray hole; 13. First connector; 14. Housing; 15. Sight glass; 16. Solution inlet; 17. Annular protrusion; 18. Annular space; 19. Locking unit A; 20. Locking unit B; 21. Second connector; 22. Air channel. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 5The high-flow-rate atomizing spray gun shown includes an inner nozzle 1, an outer nozzle 2, a connecting tee 3, a nozzle 4, an elbow 5, and a multi-angle nozzle 6. The outer diameter of the inner nozzle 1 is smaller than the inner diameter of the outer nozzle 2. One end of the inner nozzle 1 extends into the outer nozzle 2, and the center lines of the inner nozzle 1 and the outer nozzle 2 coincide. The inner nozzle 1 is used to introduce liquid during use. An annular air channel 22 is formed between the outer surface of the inner nozzle 1 and the inner surface of the outer nozzle 2, allowing compressed air to be introduced into the outer nozzle 2. When air is supplied, compressed air flows from the air passage 22 toward the nozzle 4. The nozzle 4 is detachably mounted on the end of the inner nozzle 1 that extends into the outer nozzle 2. A connecting tee 3 is fitted onto the portion of the inner nozzle 1 that extends into the outer nozzle 2. One end of the connecting tee 3 is sealed and fixed to the inner nozzle 1 by an inner nozzle locking member 7 fitted onto the inner nozzle 1. The other end of the connecting tee 3 is fixedly connected to and communicates with one end of the outer nozzle 2 by an outer nozzle locking member 8. The inlet of the connecting tee 3... The air inlet is used to introduce compressed air. The compressed air can enter the air passage 22 between the outer nozzle 2 and the inner nozzle 1 through the outer nozzle locking member 8. Since the inner nozzle locking member 7 is sealed and fixed to the inner nozzle 1, the compressed air can only flow in the direction of the nozzle 4. The other end of the outer nozzle 2 (i.e. the end near the nozzle 4) is connected to the multi-angle nozzle 6 by a bend 5. The nozzle 4 is located inside the outer nozzle 2 near the end. The end of the inner nozzle 1 outside the outer nozzle 2 in this utility model is used to introduce the solution. When the liquid flows to the nozzle 4, it is sprayed out from the nozzle 4 and enters the outer nozzle 2. The connecting tee 3 in this utility model introduces compressed air into the outer nozzle 2 through the air inlet. The compressed air flows in the direction of the nozzle 4 in the air passage 22 formed by the inner nozzle 1 and the outer nozzle 2 until it mixes with the solution sprayed from the nozzle 4. The connection method of the bend 5 to the outer nozzle 2 and the multi-angle nozzle 6 in this utility model are all existing technologies and will not be described in detail in this utility model.

[0025] like Figure 2 As shown, this invention features an atomizing baffle 9. The top of the atomizing baffle 9 is fixed to the end of the outer nozzle 2 away from the connecting tee 3. Except for the fixed connection point with the outer nozzle 2, the edges of the atomizing baffle 9 form an arc-shaped channel 10 with the inner surface of the outer nozzle 2. The liquid ejected from the nozzle 4 impacts the atomizing baffle 9 and flows towards the arc-shaped channel 10, forming the first atomization. The compressed air inside the outer nozzle 2 mixes with the liquid, forming the second atomization. This atomized liquid then enters the elbow 5 through the arc-shaped channel 10 and is ejected by the multi-angle nozzle 6, forming the third atomization. The solution in this invention undergoes three atomization processes, resulting in a better overall atomization effect. The atomizing baffle 9 in this invention is circular, with its top protruding upwards to form a fixing part. This fixing part is attached to and welded to the inner surface of the outer nozzle 2. The centerline of the atomizing baffle 9 in this invention coincides with the centerline of the outer nozzle 2.

[0026] like Figure 2 , Figure 4and Figure 5 As shown, the multi-angle nozzle 6 of this invention has multiple nozzle holes 12 unevenly distributed on its arc-shaped end face 11. Specifically, the lower part of the arc-shaped end face 11 of the multi-angle nozzle 6 does not have nozzle holes 12. This prevents the solution from being sprayed toward the inner wall of the separator during use, thus avoiding the solution from forming a wall-hanging residue on the inner wall of the separator and causing the solid particles inside the separator to clump together.

[0027] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the present invention has a first connector 13 installed on the inner nozzle 1 at one end outside the outer nozzle 2. The first connector 13 includes a housing 14 and a sight glass 15. The housing 14 is cylindrical. The sight glass 15 is detachably installed on the top of the housing 14. A solution inlet 16 is provided on the side of the housing 14 opposite to the sight glass 15 (i.e., the bottom end of the housing 14) for introducing solution into the housing 14. The right side of the housing 14 is fixedly connected to and communicates with the end of the inner nozzle 1. The liquid enters the housing 14 through the solution inlet 16 and then enters the inner nozzle 1 through the housing 14. The sight glass 15 is made of transparent material and is used to observe whether liquid enters the solution inlet 16. The sight glass 15 is threadedly engaged with the top of the housing 14. In this invention, the interior of the housing 14 protrudes an annular protrusion 17 along the direction of the solution inlet 16 toward the sight glass 15. An annular space 18 is formed between the annular protrusion 17 and the inner surface of the housing 14. There is a gap between the annular protrusion 17 and the sight glass 15 for communication with the annular space 18. The annular space 18 is connected to the inner nozzle 1. Liquid enters the annular protrusion 17 from the solution inlet 16, then enters the annular space 18 through the gap at the top of the annular protrusion 17, and then enters the inner nozzle 1 from the annular space 18.

[0028] like Figure 2 As shown, in this utility model, the end of the connecting tee 3 away from the elbow 5 is provided with an internal thread, and the inner nozzle locking member 7 is provided with an external thread. The inner nozzle locking member 7 extends into the connecting tee 3 and is threadedly engaged with the connecting tee 3. The inner nozzle locking member 7 and the inner nozzle 1 are sealed together. This sealing is achieved by the inner diameter of the inner nozzle locking member 7 matching the outer diameter of the inner nozzle 1. Alternatively, a sealing gasket can be provided at the connection between the two, or the connection can be welded and fixed.

[0029] like Figure 2As shown, the external nozzle locking component 8 of this utility model includes a locking unit A19 and a locking unit B20. The locking unit A19 is sleeved on the inner nozzle 1 and has external threads at both ends. The diameter of the through hole of the locking unit A19 on the inner nozzle 1 is larger than the outer diameter of the inner nozzle 1 to ensure that the compressed air in the connecting tee 3 can smoothly enter the external nozzle 2. The end of the connecting tee 3 near the elbow 5 has an internal thread. The locking unit A19 extends into the connecting tee 3 and is threaded with the connecting tee 3. One end of the external nozzle 2 extends into the locking unit B20 and is sealed with the locking unit B20 using a sealing ring. The side of the locking unit B20 near the locking unit A19 has an internal thread. The end of the locking unit A19 away from the connecting tee 3 extends into the locking unit B20 and is threaded with the locking unit B20. In this utility model, the external nozzle 2 is connected to the connecting tee 3 through the locking unit A19.

[0030] like Figure 2 , Figure 4 and Figure 6 As shown, the present invention has a second connector 21 at the air inlet of the connecting tee 3. The air inlet of the connecting tee 3 has an internal thread, and the second connector 21 has an external thread. One end of the second connector 21 extends into the air inlet of the connecting tee 3 and engages with the thread of the connecting tee 3. In use, the second connector 21 is connected to an air pipe for introducing compressed air into the tee.

[0031] like Figure 2 As shown, in this utility model, the nozzle 4 is threaded into one end of the inner nozzle 1 that extends into the outer nozzle 2, and the elbow 5 is arc-shaped, with an included angle of 55° between the end faces of the two ends of the elbow 5.

[0032] In use, this invention introduces a solution into the inner nozzle 1 through the solution inlet 16 and compressed air into the outer nozzle 2 through the second connector 21. The liquid flows through the inner nozzle 1 to the nozzle 4, where it impacts the atomizing baffle 9, resulting in the first atomization. The compressed air mixes with the solution in the arc-shaped channel 10, causing a second atomization. The gas-liquid mixture is then atomized a third time when it exits through the nozzle 12 on the multi-angle nozzle 6. This improves the atomization effect of this invention. Compared to existing technologies, this invention requires less compressed air pressure (i.e., a smaller compressed air flow rate) to achieve the same atomization effect. Because the multi-angle nozzle 6 in this invention does not have nozzles 12 at the bottom of its arc-shaped end face, it does not spray solution towards the inner wall of the separator. Figure 6 As shown, the solution will not form a residue on the inner wall of the separator, thus preventing dust or particles inside the separator from forming a skin or clumps due to being wetted by the solution on the inner wall, thereby reducing the frequency of cleaning the inner wall of the separator.

[0033] Unless otherwise specified in the above description, all parts are prior art, or can be implemented using existing technology. Furthermore, the specific embodiments described in this utility model are merely preferred embodiments and are not intended to limit the scope of this utility model. That is, all equivalent changes and modifications made to the content of the claims of this utility model should be considered within the technical scope of this utility model.

Claims

1. A high-flow-rate atomizing spray gun, comprising an inner spray pipe (1), an outer spray pipe (2), a connecting tee (3), a nozzle (4), an elbow (5), and a multi-angle nozzle (6), wherein one end of the inner spray pipe (1) extends into the outer spray pipe (2), the nozzle (4) is disposed on the end of the inner spray pipe (1) extending into the outer spray pipe (2), the connecting tee (3) is sleeved on the inner spray pipe (1), and one end of the connecting tee (3) is sealed and fixed to the inner spray pipe (1) by an inner spray pipe locking member (7) sleeved on the inner spray pipe (1), the other end of the connecting tee (3) is fixedly connected to one end of the outer spray pipe (2) by an outer spray pipe locking member (8) and communicates with it, the other end of the outer spray pipe (2) is connected to the multi-angle nozzle (6) by an elbow (5), the end of the inner spray pipe (1) located outside the outer spray pipe (2) is used to introduce a solution, and the connecting tee (3) is used to introduce compressed air into the outer spray pipe (2), characterized in that: It also includes an atomizing baffle (9), the top of which is fixed on the end of the outer nozzle (2) away from the connecting tee (3). Except for the fixed connection with the outer nozzle (2), the edge of the atomizing baffle (9) forms an arc-shaped channel (10) with the inner surface of the outer nozzle (2). The liquid sprayed from the nozzle (4) hits the atomizing baffle (9) to form the first atomization. The compressed air in the outer nozzle (2) mixes with the liquid to form the second atomization. When it is sprayed out by the multi-angle nozzle (6), it forms the third atomization.

2. The high-flow-rate atomizing spray gun according to claim 1, characterized in that: The atomizing baffle (9) is circular, with its top protruding upward to form a fixing part, which is welded and fixed to the outer nozzle (2).

3. The high-flow-rate atomizing spray gun according to claim 1 or 2, characterized in that: Multiple nozzles (12) are unevenly distributed on the arc-shaped end face (11) of the multi-angle nozzle (6), except that the lower part of the arc-shaped end face (11) of the multi-angle nozzle (6) does not have nozzles (12).

4. The high-flow-rate atomizing spray gun according to claim 1 or 2, characterized in that: The inner nozzle (1) is equipped with a first connector (13) at one end outside the outer nozzle (2). The first connector (13) includes a housing (14) and a sight glass (15). The sight glass (15) is detachably installed on the housing (14). A solution inlet (16) is provided on the side of the housing (14) opposite to the sight glass (15). One side of the housing (14) is fixedly connected to and communicates with the end of the inner nozzle (1). Liquid enters the housing (14) through the solution inlet (16) and then enters the inner nozzle (1) through the housing (14). The sight glass (15) is made of transparent material and is used to observe whether liquid enters the solution inlet (16).

5. The high-flow-rate atomizing spray gun according to claim 4, characterized in that: The interior of the housing (14) protrudes in the direction of the solution inlet (16) toward the sight glass (15) to form an annular protrusion (17). An annular space (18) is formed between the annular protrusion (17) and the inner surface of the housing (14). There is a gap between the annular protrusion (17) and the sight glass (15) for communication with the annular space (18). The annular space (18) is connected to the inner nozzle (1). The liquid enters the annular protrusion (17) from the solution inlet (16), then enters the annular space (18) through the gap at the top of the annular protrusion (17), and then enters the inner nozzle (1) through the annular space (18).

6. The high-flow-rate atomizing spray gun according to claim 1 or 2, characterized in that: The end of the connecting tee (3) away from the elbow (5) is provided with an internal thread, and the inner nozzle locking part (7) is provided with an external thread. The inner nozzle locking part (7) is threadedly engaged with the connecting tee (3), and the inner nozzle locking part (7) is sealed with the inner nozzle (1).

7. The high-flow-rate atomizing spray gun according to claim 1 or 2, characterized in that: The external nozzle locking component (8) includes locking unit A (19) and locking unit B (20). Locking unit A (19) is sleeved on the internal nozzle (1) and both ends of it are provided with external threads. The end of the connecting tee (3) near the elbow (5) is provided with internal threads. Locking unit A (19) is threadedly engaged with connecting tee (3). One end of the external nozzle (2) extends into locking unit B (20) and is sealed to locking unit B (20). Locking unit B (20) is provided with internal threads on the side near locking unit A (19). Locking unit B (20) is threadedly engaged with locking unit A (19). The external nozzle (2) is connected to connecting tee (3) through locking unit A (19).

8. The high-flow-rate atomizing spray gun according to claim 1 or 2, characterized in that: The air inlet of the connecting tee (3) is provided with a second connector (21), which is threaded into the connecting tee (3). The second connector (21) is connected to the air pipe in the use state to introduce compressed air into the tee.

9. The high-flow-rate atomizing spray gun according to claim 1 or 2, characterized in that: The nozzle (4) is threaded into one end of the inner nozzle (1) that extends into the outer nozzle (2).

10. The high-flow-rate atomizing spray gun according to claim 1 or 2, characterized in that: The included angle between the end faces of the elbow (5) is 55°.

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