Detachable double-layer nozzle combination structure with multiple embedded air channels

Abstract

The utility model discloses a detachable double-layer nozzle combined structure embedded with multiple air passages, which comprises a nozzle and a main body connecting piece, liquid flow passages are arranged in the centers of the nozzle and the main body connecting piece, a spray head is wrapped on the nozzle, and the nozzle is connected with the main body connecting piece through a detachable nozzle connecting rod embedded with multiple air passages. The main body connecting piece is detachably installed on the spray head, a plurality of first air channels used for primary shunting are embedded in the detachable spray nozzle connecting rod, a single channel communicated with the first air channels and used for external airflow to enter is formed in the main body connecting piece, and a plurality of second air channels used for secondary shunting are embedded in the spray nozzle. An interval inner cavity is formed between the spray head and the nozzle, the first air channel, the second air channel and the interval inner cavity are communicated, and a gap for discharging airflow is formed in the side, close to the tail end of the nozzle, of the interval inner cavity; the detachable double-layer nozzle combination structure with the multiple embedded air channels is convenient to clean, the multiple embedded air channels achieve two-time air distribution, the air pressure is more uniform, the air flow is softer, and the atomization effect is more uniform.

Description

Technical Field

[0001] The utility model specifically relates to a detachable double-layer embedded multi-airway nozzle combination structure, belonging to the technical field of nozzles. Background Art

[0002] The nozzle is an atomizing device. Its function is to spray the propellant into the combustion chamber in a certain mixing ratio to complete injection, atomization and mixing. The design quality and processing accuracy of the nozzle have a great influence on the combustion efficiency, combustion stability and life. A Chinese utility model patent with a publication number of CN207990623U discloses a gas nozzle, including a nozzle body, an air guide, a first air channel, a second air channel and an air jet disc. An outer thread is provided on the outer side of one end of the nozzle body, and an air guide is provided on the other end, and a receiving cavity is provided in the air guide; the first air channel is provided inside the nozzle body, one end of which is connected to the air supply device, and the other end extends to the air guide; one end of the second air channel is connected to an end of the first air channel away from the air supply device, and the other end passes through the nozzle body, extends into the air guide and communicates with the receiving cavity, the end of the second air channel extending into the air guide is truncated, and the narrower end of the truncated cone end is concave to form a hemispherical air collecting portion, and the air collecting portion is connected with the receiving cavity; the inner diameter of the first air channel is larger than the inner diameter of the second air channel; the air jet disc is provided at one end of the air guide away from the nozzle body, and the end of the air jet disc away from the air guide is concave inwardly provided with an air jet portion, and the air jet portion has a plurality of first air jet holes connected with the receiving cavity. The utility model product has concentrated jetting, high combustion efficiency and stable structure.

[0003] Although the above disclosed technical solution improves the mixing efficiency of air and gas, the airflow is not uniform when entering, resulting in poor atomization effect on the liquid. In addition, the whole is not easy to disassemble and is not conducive to cleaning. In view of this, the present application is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a detachable double-layer embedded multi-airway nozzle combination structure to address the deficiencies of the prior art, so as to achieve multi-stage quick disassembly, convenient cleaning, more uniform air pressure, softer airflow, and more uniform atomization effect.

[0005] A detachable double-layer embedded multi-air channel nozzle combination structure, including a nozzle with a liquid flow channel in the center and a main body connecting part, a nozzle wrapped with a spray head, the nozzle and the main body connecting part are connected by a detachable nozzle connecting rod embedded with multiple air channels, and the main body connecting part is detachably installed on the spray head, the detachable nozzle connecting rod is embedded with a plurality of first air channels for primary diversion, a single channel connected with the first air channel and used for external airflow to enter is provided on the main body connecting part, a plurality of second air channels for secondary diversion are embedded in the nozzle, a spacing inner cavity is formed between the spray head and the nozzle, the first air channel, the second air channel and the spacing inner cavity are connected, and a gap for airflow discharge is provided on the side of the spacing inner cavity close to the end of the nozzle.

[0006] Furthermore, a front sealing ring is provided at the connection between the detachable nozzle connecting rod and the nozzle to ensure the sealing of the connection between the detachable nozzle connecting rod and the nozzle and to prevent air leakage from affecting the liquid atomization effect.

[0007] Furthermore, a rear sealing ring is provided at the connection between the detachable nozzle connecting rod and the main connecting piece to ensure the sealing of the connection between the detachable nozzle connecting rod and the main connecting piece and to prevent air leakage from affecting the liquid atomization effect.

[0008] Furthermore, the first air channel and the second air channel are both distributed in a ring shape, so that the airflow can be evenly distributed, ensuring the uniformity of the final spraying, and further ensuring the liquid atomization effect.

[0009] Furthermore, the cross-sectional area of ​​the cavity of the spacer cavity gradually decreases along the outer slope of the nozzle for gas pressurization.

[0010] Furthermore, the front sealing ring and the rear sealing ring are both made of corrosion-resistant rubber.

[0011] Beneficial effects: When the present invention is used, the airflow enters through a single channel, passes through multiple first air channels and second air channels, and then reaches the interval inner cavity for uniform annular mixing, and then flows out rapidly after being squeezed by the outer slope of the nozzle and the inner slope of the nozzle. The liquid is discharged from the middle liquid flow channel, and negative pressure atomization of the liquid is achieved under highly flowing airflow. It has multiple sections for quick disassembly and is easy to clean. The embedded multiple air channels achieve two-time gas diversion, so the air pressure is more uniform, the airflow is softer, and the atomization effect is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the end face of the nozzle of the utility model;

[0014] Figure 3 It is a cross-sectional view of the end face of the main connecting piece in the utility model.

[0015] In the figure: 1, nozzle; 2, main body connecting part; 201, single-channel airflow; 3, detachable nozzle connecting rod; 4, nozzle; 5, spacer inner cavity; 501, gap; 6, front sealing ring; 7, rear sealing ring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3 As shown, a detachable double-layer embedded multi-air channel nozzle 1 combination structure includes a nozzle 1 with a liquid flow channel in the center and a main body connecting part 2, a nozzle 4 is wrapped on the nozzle 1, the nozzle 1 and the main body connecting part 2 are connected by a detachable nozzle connecting rod 3 with embedded multi-air channels, and the main body connecting part 2 is detachably installed on the nozzle 4, the detachable nozzle connecting rod 3 is embedded with a plurality of first air channels for primary diversion, a single channel connected with the first air channel and used for external air flow to enter is provided on the main body connecting part 2, a plurality of second air channels for secondary diversion are embedded in the nozzle 1, a spacing inner cavity 5 is formed between the nozzle 4 and the nozzle 1, the first air channel, the second air channel and the spacing inner cavity 5 are connected, and a gap 501 for air flow discharge is provided on the side of the spacing inner cavity 5 close to the end of the nozzle 1.

[0018] When the utility model is actually used, the airflow enters through a single channel, passes through multiple first air passages embedded in the detachable nozzle connecting rod 3 and then splits, and then passes through multiple second air passages embedded in the nozzle 1 again to split, and finally reaches the interval inner cavity 5 for uniform annular mixing, and then flows out rapidly after being squeezed by the outer slope of the nozzle 1 and the inner slope of the nozzle 4. The liquid is discharged from the liquid flow channel in the middle, and negative pressure atomization of the liquid is achieved under highly flowing airflow. The multi-section quick disassembly is easy to clean, and the embedded multiple air passages realize twice gas diversion, so the air pressure is more uniform, the airflow is softer, and the atomization effect is more uniform.

[0019] A front sealing ring 6 is provided at the connection between the detachable nozzle connecting rod 3 and the nozzle 1 to ensure the sealing of the connection between the detachable nozzle connecting rod 3 and the nozzle 1, and to prevent air leakage from affecting the liquid atomization effect. A rear sealing ring 7 is provided at the connection between the detachable nozzle connecting rod 3 and the main connecting member 2 to ensure the sealing of the connection between the detachable nozzle connecting rod 3 and the main connecting member 2, and to prevent air leakage from affecting the liquid atomization effect.

[0020] The first air channel and the second air channel are both distributed in an annular shape, so that the airflow can be evenly distributed, ensuring the uniformity of the final spray, and then ensuring the liquid atomization effect. The cavity cross-sectional area of ​​the spacer cavity 5 gradually decreases along the outer slope of the nozzle 1, which is used for gas pressurization. The material of the front sealing ring 6 and the rear sealing ring 7 are both corrosion-resistant rubber.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A detachable double-layer embedded multi-air channel nozzle (1) combined structure, comprising a nozzle (1) with a liquid flow channel at the center and a main body connecting member (2), wherein a nozzle (4) is wrapped around the nozzle (1), characterized in that: The nozzle (1) and the main connecting member (2) are connected via a detachable nozzle connecting rod (3) with multiple air channels embedded therein, and the main connecting member (2) is detachably mounted on the nozzle (4), the detachable nozzle connecting rod (3) is embedded with a plurality of first air channels for primary flow diversion, a single channel connected to the first air channel and used for external air flow to enter is provided on the main connecting member (2), a plurality of second air channels for secondary flow diversion are embedded in the nozzle (1), a spacing inner cavity (5) is formed between the nozzle (4) and the nozzle (1), the first air channel, the second air channel and the spacing inner cavity (5) are connected, and a gap (501) for air flow discharge is provided on one side of the spacing inner cavity (5) close to the end of the nozzle (1).

2. The detachable double-layer embedded multi-airway nozzle (1) combined structure as claimed in claim 1, characterized in that: A front sealing ring (6) is provided at the connection between the detachable nozzle connecting rod (3) and the nozzle (1).

3. The detachable double-layer embedded multi-airway nozzle (1) combined structure as claimed in claim 1, characterized in that: A rear sealing ring (7) is provided at the connection between the detachable nozzle connecting rod (3) and the main body connecting piece (2).

4. The detachable double-layer embedded multi-airway nozzle (1) combined structure as claimed in claim 2 or 3, characterized in that: The materials of the front sealing ring (6) and the rear sealing ring (7) are both corrosion-resistant rubber.

5. The detachable double-layer embedded multi-airway nozzle (1) combined structure as claimed in claim 1, characterized in that: The first airway and the second airway are both distributed in a ring shape.

6. The detachable double-layer embedded multi-airway nozzle (1) combined structure according to claim 1, characterized in that: The cavity cross-sectional area of ​​the spacer inner cavity (5) gradually decreases along the outer slope of the nozzle (1).

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