Ammonia water spray gun with protection structure

Abstract

The utility model provides an ammonia water spray gun with a protection structure, which belongs to the technical field of denitration equipment and comprises a gun barrel, a mixing pipe, a liquid inlet pipe, a connecting pipe, a gas inlet pipe, a sleeve, a spray pipe, an atomizing nozzle, a movable sleeve, a protection shell and a telescopic spring. The power generated when ammonia water rushes out drives the spraying pipe to move forwards, the atomizing nozzle at the front end of the spraying pipe penetrates through the front end opening of the protective shell, coagulum at the outer end of the atomizing nozzle can be scraped off through the protective shell, and dirt or other impurities on the atomizing nozzle can be prevented from blocking a nozzle opening. The flow of the nozzle and the shape and uniformity of sprayed ammonia water can be guaranteed, when the ammonia water stops, after the outward flushing power of the ammonia water and compressed gas disappears, the spraying pipe falls back inwards, and when the spraying pipe passes through the protective shell, coagulum at the outer end of the atomizing nozzle can be scraped off through the protective shell, so that the smoothness of the nozzle is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of denitration equipment, in particular to an ammonia water spray gun with a protective structure. Background Art

[0002] Ammonia spray gun, also known as ammonia denitrification spray gun, is a commonly used engineering spray gun. It is widely used in engineering fields such as coatings, polyurethanes, powder coatings, hot melt adhesives and silicones. It is used to spray ammonia to react with harmful gases to remove carbon dioxide, sulfur dioxide and other substances in the exhaust gas to meet emission standards. Ammonia spray guns can effectively reduce pollution and are currently the most widely used spray guns.

[0003] It has been found in actual use that the existing ammonia spray guns have the following shortcomings:

[0004] When the ammonia spray gun sprays ammonia, the dirt or other impurities in the ammonia will gather at the nozzle, and the material on the surface of the nozzle will gradually increase, which will block the nozzle opening and limit the flow of the nozzle, interfering with the shape and uniformity of the ammonia spray from the nozzle;

[0005] In addition, the splashing, mist or chemical accumulation caused by the evaporation of ammonia outside the nozzle edge will leave a dry solidified layer, blocking the nozzle hole or internal flow channel, affecting the smoothness of the ammonia spray;

[0006] Therefore, the present application provides an ammonia spray gun with a protective structure to meet the demand. Utility Model Content

[0007] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes an ammonia water spray gun with a protective structure.

[0008] The technical problem to be solved by the utility model is to provide an ammonia water spray gun with a protective structure to solve the problems of the existing ammonia water spray gun with a protective structure.

[0009] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0010] An ammonia spray gun with a protective structure comprises: a gun barrel, a mixing tube, a liquid inlet pipe, a connecting pipe, an air inlet pipe, a sleeve, a nozzle, an atomizing nozzle, a movable sleeve, a protective shell and a telescopic spring, wherein a mixing tube is installed at the rear end of the gun barrel, a liquid inlet pipe is installed at the side of the mixing tube, a connecting pipe is installed at the other end of the mixing tube, an air inlet pipe is installed at the side of the connecting pipe, a sleeve is installed at the front end of the gun barrel, a limiting ring is provided at the front end of the sleeve, a nozzle is installed at the front end of the sleeve, an atomizing nozzle is installed at the front end of the nozzle, a movable sleeve is installed at the outer end of the sleeve, a protective shell is installed at the front end of the movable sleeve, and a telescopic spring is installed inside the protective shell.

[0011] Preferably, the movable sleeve is nested at the outer end of the sleeve, and the sleeve penetrates the movable sleeve and extends inwardly to the inside of the gun barrel to be connected with the gun barrel.

[0012] Preferably, one end of the movable sleeve abuts against the mouth of the gun barrel, and a limiting block is provided on the inner side of the movable sleeve.

[0013] Preferably, the front end inner wall of the gun barrel is provided with a threaded surface, the outer wall of the sleeve is provided with a threaded groove, and the sleeve and the gun barrel are threadedly connected, one end of the sleeve is embedded in the interior of the gun barrel, and the other end of the sleeve extends outward to the outer end of the gun barrel.

[0014] Preferably, the limiting ring is located at the outer end of the tube mouth of the gun barrel, and the movable sleeve is clamped with the limiting ring of the sleeve through a limiting block.

[0015] Preferably, the nozzle is movably connected to the sleeve, the nozzle passes through the movable sleeve and extends to the interior of the protective shell, and the atomizing nozzle is located at the front end opening of the protective shell.

[0016] Preferably, the protective shell is in a cone shape, a fan-shaped opening is provided on the side of the protective shell, and the front end opening of the protective shell is larger than the diameter of the atomizing nozzle.

[0017] Preferably, two groups of telescopic springs are provided, and the two groups of telescopic springs are respectively located at the left and right ends of the nozzle, and the two ends of the telescopic springs are respectively against the limit ring and the inner wall of the protective shell.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] 1. When ammonia water and compressed gas pass through the barrel and enter the sleeve to be sprayed outward, the power of ammonia water rushing out drives the nozzle to move forward, and the atomizing nozzle at the front end of the nozzle passes through the front end opening of the protective shell. The solidified material at the outer end of the atomizing nozzle can be scraped off through the protective shell, which can prevent the dirt or other impurities on the atomizing nozzle from clogging the nozzle mouth, and can ensure the flow rate of the nozzle and the shape and uniformity of the sprayed ammonia water;

[0020] 2. When the ammonia stops flowing, the movable sleeve and the protective shell are returned to their positions through the telescopic spring. After the power of the ammonia and compressed gas rushing out disappears, the nozzle falls back inward. When passing through the protective shell, the solidified material on the outer end of the atomizing nozzle can be scraped off by the protective shell, effectively ensuring the smooth flow of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the specific connection structure between the sleeve and the nozzle of the utility model;

[0026] Figure 5 This is a schematic diagram of the specific connection structure of the movable sleeve and the protective shell of the utility model;

[0027] Figure 6 For the utility model Figure 2 A is an enlarged schematic diagram of the structure.

[0028] [reference numerals]

[0029] 1-gun barrel; 2-mixing tube; 3-liquid inlet pipe; 4-connecting pipe; 5-air inlet pipe; 6-casing; 7-nozzle; 8-atomizing nozzle; 9-movable casing; 10-protective shell; 11-telescopic spring; 601-limiting ring.

[0030] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6An ammonia spray gun with a protective structure is shown in an embodiment of the utility model, comprising: a gun barrel 1, a mixing tube 2, a liquid inlet pipe 3, a connecting pipe 4, an air inlet pipe 5, a sleeve 6, a nozzle 7, an atomizing nozzle 8, a movable sleeve 9, a protective shell 10 and a telescopic spring 11. The mixing tube 2 is installed at the tail end of the gun barrel 1, the liquid inlet pipe 3 is installed on the side of the mixing tube 2, the connecting pipe 4 is installed at the other end of the mixing tube 2, the air inlet pipe 5 is installed on the side of the connecting pipe 4, the sleeve 6 is installed at the front end of the gun barrel 1, a limiting ring 601 is provided at the front end of the sleeve 6, a nozzle 7 is installed at the front end of the sleeve 6, an atomizing nozzle 8 is installed at the front end of the nozzle 7, a movable sleeve 9 is installed at the outer end of the sleeve 6, a protective shell 10 is installed at the front end of the movable sleeve 9, and a telescopic spring 11 is installed inside the protective shell 10.

[0032] In this embodiment, the movable sleeve 9 is nested at the outer end of the sleeve 6, and the sleeve 6 passes through the movable sleeve 9 and extends inwardly to the inside of the barrel 1 to be connected to the barrel 1. The movable sleeve 9 is first installed, and then the sleeve 6 is inserted into the barrel 1 from the movable sleeve 9 to fix the movable sleeve 9 at the outer end of the sleeve 6.

[0033] In this embodiment, one end of the movable sleeve 9 is against the mouth of the gun barrel 1, and a limit block is provided on the inner side of the movable sleeve 9, and the movable sleeve 9 can be fixed between the gun barrel 1 and the sleeve 6 through the limit block on the inner side of the movable sleeve 9.

[0034] In this embodiment, a threaded surface is provided on the inner wall of the front end of the barrel 1, a threaded groove is provided on the outer wall of the sleeve 6, and the sleeve 6 is threadedly connected to the barrel 1, one end of the sleeve 6 is embedded in the interior of the barrel 1, and the other end of the sleeve 6 extends outward to the outer end of the barrel 1.

[0035] In this embodiment, the limiting ring 601 is located at the outer end of the tube mouth of the gun barrel 1, and the movable sleeve 9 is clamped with the limiting ring 601 of the sleeve 6 through the limiting block, and the movable sleeve 9 can move forward and backward between the gun barrel 1 and the limiting ring 601 of the sleeve 6.

[0036] In this embodiment, the nozzle 7 is movably connected to the sleeve 6, and the nozzle 7 passes through the movable sleeve 9 and extends to the inside of the protective shell 10, and the atomizing nozzle 8 is located at the front end opening of the protective shell 10. When the ammonia water and the compressed gas pass through the barrel 1 and enter the sleeve 6 to be sprayed outward, the power of the ammonia water rushing out drives the nozzle 7 to move forward, and the atomizing nozzle 8 at the front end of the nozzle 7 passes through the front end opening of the protective shell 10. The solidified material on the outer end of the atomizing nozzle 8 can be scraped off through the protective shell 10, which can prevent the dirt or other impurities on the atomizing nozzle 8 from clogging the nozzle opening, and can ensure the flow rate of the nozzle and the shape and uniformity of the sprayed ammonia water.

[0037] In this embodiment, the protective shell 10 is conical in shape, and a fan-shaped opening is provided on the side of the protective shell 10 . The front end opening of the protective shell 10 is larger than the diameter of the atomizing nozzle 8 , and the atomizing nozzle 8 can spray ammonia water from the front end and side of the protective shell 10 .

[0038] In this embodiment, two groups of telescopic springs 11 are provided, and the two groups of telescopic springs 11 are respectively located at the left and right ends of the nozzle 7, and the two ends of the telescopic springs 11 are respectively against the inner walls of the limiting ring 601 and the protective shell 10. The elasticity of the telescopic springs 11 enables the movable sleeve 9 and the protective shell 10 to return to their original positions after displacement. When the ammonia water stops, the telescopic springs 11 enable the movable sleeve 9 and the protective shell 10 to return to their original positions, and the protective shell 10 can scrape off the solidified material on the outer end of the atomizing nozzle 8 through the protective shell 10, thereby effectively ensuring the smooth flow of the nozzle.

Claims

1. An ammonia spray gun with a protective structure, characterized in that: include: A gun barrel (1), a mixing tube (2), a liquid inlet pipe (3), a connecting pipe (4), an air inlet pipe (5), a sleeve (6), a nozzle (7), an atomizing nozzle (8), a movable sleeve (9), a protective shell (10) and a telescopic spring (11), wherein the rear end of the gun barrel (1) is provided with a mixing tube (2), a side of the mixing tube (2) is provided with a liquid inlet pipe (3), the other end of the mixing tube (2) is provided with a connecting pipe (4), and a side of the connecting pipe (4) is provided with a An air intake pipe (5), a sleeve (6) is installed at the front end of the gun barrel (1), a limit ring (601) is provided at the front end of the sleeve (6), a nozzle (7) is installed at the front end of the nozzle (7), an atomizing nozzle (8) is installed at the front end of the nozzle (7), a movable sleeve (9) is installed at the outer end of the sleeve (6), a protective shell (10) is installed at the front end of the movable sleeve (9), and a telescopic spring (11) is installed inside the protective shell (10).

2. The ammonia spray gun with a protective structure according to claim 1, characterized in that: The movable sleeve (9) is nested at the outer end of the sleeve (6), and the sleeve (6) penetrates the movable sleeve (9) and extends inwardly to the inside of the gun barrel (1) to be connected with the gun barrel (1).

3. The ammonia spray gun with a protective structure according to claim 1, characterized in that: One end of the movable sleeve (9) abuts against the mouth of the gun barrel (1), and a limiting block is arranged on the inner side of the movable sleeve (9).

4. The ammonia spray gun with a protective structure according to claim 1, characterized in that: The front end inner wall of the gun barrel (1) is provided with a threaded surface, the outer wall of the sleeve (6) is provided with a threaded groove, and the sleeve (6) and the gun barrel (1) are threadedly connected, one end of the sleeve (6) is embedded in the gun barrel (1), and the other end of the sleeve (6) extends outward to the outer end of the gun barrel (1).

5. The ammonia spray gun with a protective structure according to claim 1, characterized in that: The limiting ring (601) is located at the outer end of the tube mouth of the gun barrel (1), and the movable sleeve (9) is clamped with the limiting ring (601) of the sleeve (6) through a limiting block.

6. The ammonia spray gun with a protective structure according to claim 1, characterized in that: The nozzle (7) is movably connected to the sleeve (6); the nozzle (7) passes through the movable sleeve (9) and extends to the interior of the protective shell (10); and the atomizing nozzle (8) is located at the front end opening of the protective shell (10).

7. The ammonia spray gun with a protective structure according to claim 1, characterized in that: The protective shell (10) is in a cone shape, a fan-shaped opening is provided on the side of the protective shell (10), and the front end opening of the protective shell (10) is larger than the diameter of the atomizing nozzle (8).

8. The ammonia spray gun with a protective structure according to claim 1, characterized in that: Two groups of telescopic springs (11) are provided. The two groups of telescopic springs (11) are respectively located at the left and right ends of the nozzle (7), and the two ends of the telescopic springs (11) are respectively against the limit ring (601) and the inner wall of the protective shell (10).

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